NCP-27_Construction_Quality_management.doc

Assignment no. 2 Construction quality management Registration no.

ASSIGNMENT NICMAR / CODE OFFICE 1.

Name

-

2.

Reg. No.

-

3.

Course No.

-

NCP 27

4.

Course Title

-

Construction Quality Management

5.

Assignment No. -

Two Assignment

You have been selected as a project manager for a prestigious high rise building in Mumbai which will be housing very rich personalities from industry and film world. Your company management has asked you to formalize Quality Management System (QMS) for interior finishes, plumbing and prevention of rain water seepage so that the overall quality standard and image of company is raised. Purpose The purpose of this document i.e. Quality Assurance Plan is to establish work methodology for Quality Control and Material engineering for Construction of High Rise Building in Mumbai for very rich personalities from industry and film world. The procedure will outline the methods that will be used in line with the National Building Codes, Local building codes Specifications for Building works and the Technical Specifications as per the requirements of the Engineer or his representatives. Page 1 of 55

Assignment no. 2 Construction quality management Registration no.

The methodology also defines the standards of workmanship and requirements for materials necessary for the work. Scope This procedure is applicable to all engineers, workmen, supervisors, inspectors and quality control personnel engaged in the works for the Construction of High rise residential apartments in Mumbai. It intends to correlate and control the tasks pertaining to Quality Control and Materials testing in compliance with the requirements. patience

Quality management System Quality management system refers to all plans, processes and activities that are developed to achieve the intended degree of conformance in the design and execution of any project. The QMS concept focuses attention of the following specific aspects of construction processes. 1. Construction is a one time activity. It affords no second chance of modification, repair or rejection once the construction work is completed. There is no scope for catching the defects after the construction is over. Therefore

quality consciousness, skill and workers are essential in

achieving quality. Training, motivation

and commitment are the

primary requirement of quality construction. 2. With the increase in complexity and the size of construction operations, the responsibility for ensuring quality has gradually shifted from the worker to supervisor of inspection and later to the quality control department. This

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Assignment no. 2 Construction quality management Registration no.

3. trend has to be reversed if quality is the goal. Responsibility to ensure quality has to be shifted back to the worker at site and his supervisor. 4. It is a well known fact that the quality cannot be constructed. It has to be designed into a project system. QMS therefore starts from the design stage itself. Quality of design is the difference between various design of the project for achieving the same end use and the most optimal design finally selected. Thus economy, quality and safety are very closely interlinked in construction process. 5. Quality is expensive. Quality decisions are based on trade-offs between cost of construction and the benefits derived from the operations of facility. Once the decision is taken, it has to be backed by appropriate staff strength, infrastructure and support services. The management must therefore be committed to quality, participate in all measures developed to achieve it and lend support to QMS personnel. 6. QMS is the responsibility of the project authority. The owner or his representative formulates the policy, determines the scope of quality planning and management establishes the relationship between the various participating organizations and delegates responsibility and authority to them so that the quality objectives set by the owner are achieved.

Quality Control: Quality control refers to the technical processes that gather, examine, analyse and report

the

projects

progress and conformance with the performance

requirements. QC mainly relates to four basic functions: Page 3 of 55

Assignment no. 2 Construction quality management Registration no.

1. Setting up of standards and specifications. 2. Evaluating materials, processes and outputs through appropriate tests, inspection etc. 3. Appraising failures to these standards and acting when standards are not being adhered to. 4. Planning improvements in the standards and specifications.

Quality Control norms, techniques and procedures: Inspection: Once quality standards and other things are laid out inspection becomes a routine matter. In any quality control programme actual inspection and measurement is an undetachable factor, which is to be planned at properly to meet with the overall objective

of

the quality control. Various stages of inspection should be

determined . Some of such stages could be following. i.

Material inspection at suppliers end.

ii.

Material inspection at the stage of receipt.

iii.

Material inspection at the stage of issue.

iv.

Inspection of the process at the time of initial setting of machine/equipment.

v.

Inspection of trial run batch.

vi.

Inspection while the execution is in progress.

vii.

Inspection of the finished process.

viii. Inspection before erection and commissioning. ix.

Inspection of commissioning. Page 4 of 55

x.

Assignment no. 2 Construction quality management Registration no. Inspection of machines and equipment commissioned.

Having decided various stages of inspection and various quality characteristics to be inspected it is also important to decide who will inspect, when the inspection will be carried out, how many units will be inspected, instruments to be used required approval for acceptance. While planning such inspection activities it is also important to decide what information is to be given to the inspector at the time of inspection. Some of the basic information required is design specifications, product specification, quality characteristics, quality standards and tolerances available and the detailed inspection procedures. For total quality control the following six phases are necessary (6Cs) i.

Comprehension

-

What is quality. It should be definable and

measureable. ii.

Commitment

- Clarity of concept and policies organizations for it.

iii.

Competence

- Develop methods test procedures to evaluate quality understand the price conformance to quality.

iv.

Communication -

Create awareness, resolve conflicts, coordinate

activities, v.

Correction

- Solve problems for non conformance. They may be

due to lack of attention rather than lack of knowledge or lack of facilities. vi.

Continuance

- Maintain its importance and do not complacent ensure Page 5 of 55

Assignment no. 2 Construction quality management Registration no. exposure to sustained programme.

Quality control standards and specifications The quality of construction depends upon right material used, the correct methods followed and produce end product of acceptable performance. Quality control attempts to ensure just that much. The means of quality control are tests, inspection , supervision and analysis of data etc. Quality tests are conducted in laboratories and inspection and supervision are carried out on the site and the data analysis is done by experts in office. Specifications: The project authorities prepare the process of working out specifications of various facilities where concrete will be used. However, the standards and specifications for concrete and its various ingredients are universally standardized and they are required to be in conformity with same. Indian standards IS for concrete and its basic ingredients viz cement aggregates coarse and fine, water admixtures and various aspects of concreting, its placement and final acceptance should be as per IS specifications. Tests: Tests are used to determine the various properties of the materials, which help in their selection as well as for ascertaining the quality of final product. The test Page 6 of 55

Assignment no. 2 Construction quality management Registration no. results are compared with the prescribed standards and specifications and judgements are arrived at. Proper methods of sampling, prescribed procedures of testing, well qualified and trained personnel for testing work and properly equipped laboratories are necessary. What to test: The manufactured goods such as cement and steel carry their suppliers warrantee but this does not mean that they are not to be tested. In case of materials like aggregate and water the properties may vary widely over time and space and proper selection has to done to meet the engineering requirements. The raw materials are processed to obtain the final product. The processing need to be tested and supervised carefully. Some intermediate process may not be having tests and they cannot be tested and the inadequacies if any can known only when the final product is tested. In such situation the testing of final product is important.

Statistical Quality Control: Total quality management addresses organizational quality from managerial and philosophical viewpoint. TQM focuses on customer driven quality standards, managerial leadership, continuous improvement, quality identified problems at the source and quality made everyone’s responsibility. However, talking about solving quality problems is not enough. We need specific tools that helps us make the right quality decision. These tools comes from the area of statistics and are used to help identify quality problems in the production process as well as in product itself.

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Assignment no. 2 Construction quality management Registration no. Statistical quality control is the term used to describe the set of statistical tools used by quality professionals. Statistical quality control can be devided into three broad categories.

Descriptive Statistics: Are used to describe quality characteristics and relationships. Included are statistics such as the mean, standard deviation, the range and a measure of distribution of data. Statistical Process Control: Involves inspecting a random sample of the output from a process and deciding whether the process is producing products with characteristics that fall within a predetermined range. SPC answer the questions whether the process is functioning properly or not. Acceptance Sampling: Is the process of randomly inspecting a sample of goods and deciding whether to accept the entire lot based on the results. Acceptance sampling determines whether a batch of goods should be accepted or rejected.

Quality Assurance: Quality assurance refers to the managerial processes which determine the organizations design, objectives and resources, the project team, funding agencies, performance standards and feedback on the project performance, appropriate Page 8 of 55

Assignment no. 2 Construction quality management Registration no. actions to deal with deviations and all steps necessary for promoting quality awareness at all levels and in all parts of the project organizations.

A typical quality assurance programme addresses itself to the following. 1.

Organization structure of the project team and quality assurance department.

2. Responsibilities and powers of the various personnel involved. 3. Identification of the coordinating personnel. 4. Quality and its programmes. 5. Quality education and awareness, 6. Quality circles. 7. Training. 8. Setting up of MIS for quality. 9. Resolution of technical differences and disputes. 10. Preparation of quality assurance manuals and their checklist. 11. Vendor survey procedures. 12. Vendor surveillance procedure Quality assurance provides protection against quality problems through early warnings of trouble ahead. Such early warnings play an important role in the prevention of both internal and external problems. The assurance is provided from objective evidence but the type of evidence differs widely according to persons requiring the assurance and nature of product. Page 9 of 55

Assignment no. 2 Construction quality management Registration no. It need not be emphasized that quality assurance is an essential prerequisite of all construction projects. Over years the accent on quality has graduated progressively from simple Inspection to quality control to quality assurance and to quality management. Whereas the limitations of inspections are quite

obvious, a quality control system includes testing of raw materials at selection and processing stage, testing at various stages of production, acceptance and feedback.

Management responsibilities: Management Commitment: Top management comprises of CEO, MD, all Directors, all VPs, and Functional Heads of various departments at Head Office. The leadership (including Incharges / Managers / Heads) hold key positions at HO, and Project sites in a matrix organizational structure.

Management has appointed a Management

Representative and a Quality Management Cell for effective implementation and monitoring of QMS throughout

organization.

Management Reviews are

planned at various levels for effective monitoring of QMS. Evidence of top management commitment to development and implementation of the quality management system with a view to continually improve its effectiveness through the following manner: a) Communicating throughout the organization the importance of meeting customer as well as statutory and regulatory requirements. b) Quality policy is established and displayed prominently at all site locations and Page 10 of 55

Assignment no. 2 Construction quality management Registration no. Work places and is understood by all employees by discussions, training and providing printed pocket cards, which are carried by employees.

c)

Quality objectives for the company are established & displayed at all site locations and work places. Quality objectives are also defined for each major & critical process at Head Office level.

d)

Management Review process is established and the frequency for this review is half yearly.

e) Availability of resources for implementing Quality Management System is ensured through proper planning and logistics. Customer Focus: Responsibility: Primary – Project In Charge; Secondary – All Section Heads Processes are established for customer communication on suggestions for improvements, information on status of project and direct meetings. Areas of dissatisfaction / improvements, if any, are discussed at various levels and informed to project site and corrective actions taken based on above inputs. Record the Customer complaint and acknowledge the receipt of the same within 3 working days. Discuss the Customer complaint  Examine root causes.  Identify & implement corrective action Page 11 of 55

 Assess Results

Assignment no. 2 Construction quality management Registration no.

 Inform customer

 Review procedure and reformulate prevention of repetitive complaint.  Reply to Customer complaints with action plan and target dates for achieving the same.  Communicate to customer on action taken on complaint.  Receive information about direct customer satisfaction from MIOF.  Prepare action plan on area of dissatisfaction with the consultation of all sections  Improve performance on area of dissatisfaction.

Quality Policy: Top management has articulated “Quality Policy” 

Shows commitment to comply with the requirements and continually improve the effectiveness of the Quality Management System



Provides a framework for establishing and reviewing quality objectives



Communicated and understood within the organization



The policy is communicated to all by displaying at strategic locations and through Quality manual, which is being distributed to all Page 12 of 55

Assignment no. 2 Construction quality management Registration no. sections and intend being circulated to all employees of company.

References Reference No. Document 1. Specifications for High rise building National building by National Building codes & Mumbai Mahanagar Regional Development authority (MMRDA) building by laws 2. Technical Specifications for residential building 3. Quality Control Inspection Plan

Appendix II

4. Quality records – Checklists

Appendix III

5. Quality records – Format for Internal Appendix IV tests 6. Calibration Schedule Appendix V 7. Relevant NBC, Neuferts, IS codes & Time saver standards Methodology: Identification of source for raw materials. The identification for source for raw materials will be on the basis of proximity from the location of work, conformance of quality of material in accordance with requirement for the project and commercial viability. For manufactured products, vendors are to be got approved from the engineer. Development of Mix design / details.

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Assignment no. 2 Construction quality management Registration no. Different mix designs for various grades of concrete works for High Rise Building (Frame structures) & foundations construction are to be developed at the Site Laboratory through trials. On identification and successful trial in conformity to the requirements, the details are to be supplied for adoption in construction works after due approval from the Engineer or his representative. Quality control in Construction. The Supervisors for Construction work will be assisted with testing equipment for monitoring of gradation, slump, temperature and for sampling / spot test of materials as and when required. Control / checks / monitoring of levels, dimensions, profile during and after construction activities, will be done by construction engineers / survey engineers. QC Engineers will be assigned to the Building work and Road work as and when required by the Materials Engineer of The Contractors. They will assist the respective building / Road sectional In-charges / Engineers / Supervisors for collecting test samples, performing field tests as required. Whenever required, material samples will be drawn for spot testing or tests at the site laboratory in accordance with Documents. Conformance of Post Construction checks will be done by the respective Engineers of building and road engineer. Marble /Granite tiling work in floors 1.

Marble /Granite shall be of approved quality in terms of source, thickness, colour, texture, etc.

2.

Sizes of marble blocks, slabs & Tiles shall be as per Approved Drawings & specification. Page 14 of 55

Assignment no. 2 Construction quality management Registration no. 3.

Only slabs and tiles shall be machine cut & factory made. The following tolerances shall be applied(As per CPWD Specification) in the dimensions of blocks, slabs & tiles.

Dimension Length Width Thickness 4.

Blocks + 2% + 2% + 2%

Slabs + 2% + 2% + 3%

Tiles + 3% + 3% + 1%

Before starting of work the samples shall be approved by Client. Requirement for physical properties shall be as per CPWD Specifications as follows: Characteristics 1. Moisture absorption after 24 hours immersion in cold water 2. Hardness 3. Specific Gravity

Requirements Maxm. 0.4% weight

Method of Test by IS: 1124

Minimum 3 Minimum 2.5

Mhors scale IS: 1124

5.

Each stone shall be cut to required size and chisel dressed on all bed and joints.

6.

The mortar shall be as specified. All stones shall be wetted before placing in position. These shall then be floated on mortar and bedded properly in position with wooden mallets.

7.

Stones shall be laid in regular courses of not less than and shall be of the same height unless otherwise noted.

8.

The depth of the joints 6 mm from face shall be uniform and as fine as possible but shall not be more than 1.5 mm thick. Page 15 of 55

15 cm in height

9.

10.

Assignment no. 2 Construction quality management Registration no. The curing shall be done for a period of at least 7 days. After curing it shall be rubbed with carborandum stone of different grades numbers 60,120 & 320 in succession and cleaned & washed with a solution of oxalic acid.

Sample size & criteria of conformity shall be as follows( As per CPWD Specifications ): Nos. of Nos. of Permissible blocks/slabs/tiles blocks/slabs/tiles to number of in lot be selected in defects sample Upto 25 3 0 26 to 100 5 0 101 to 200 8 0 201 to 500 13 0 501 to 1000 20 1

Subsample size in number 2 2 3 4 5

Ceramic / Glazed tile flooring Tiles shall be of approved make, size, colour & thickness. 1. Sample approvals shall be taken before start of work from client. 2.

The length of all four sides shall be measured correct to 0.1 mm and average length and breadth shall not vary more than +/- 0.8 mm from specified dimensions. The tolerance for thickness shall be up to +/- 0.4 mm.

3.

Base concrete (RCC slab) shall be cleaned, wetted & mopped. Bedding of cement mortar (1:3) shall be laid with average thickness 10 mm while thickness under any portion of the tiles shall not be less than 5 mm.

4.

Over mortar bedding neat grey cement slurry of required consistency shall be applied @3.3 kg/m2 over an area to cover 20 tiles.

5.

Tiles shall be soaked in water, washed clean and shall be fixed in this grout with gentle tapping with wooden mallet. Page 16 of 55

6.

Assignment no. 2 Construction quality management Registration no. Surface of flooring during laying shall be frequently checked with a straight edge about 2 mm long so as to obtain true surface with required slope.

Brick Work 1.

The bricks shall be of class 7.5 & of non-modular type.

Bond: Generally English bond shall be followed wherever applicable, toothing and closure shall be provided. 2.

Following tests shall be performed.

a)

Efflorescence.

b)

Crushing strength.

c)

Water Absorption.

d)

Dimension Check.

3.

Frequency of tests/sampling shall be 20 bricks chosen randomly for every 1 lac Bricks for each brand. No. of Bricks For characteristic specified in the lot for individual bricks No. of bricks Permissible to be selected no of defective in the sample 2001-10000 20 1 10001-35000 32 2 35001-50000 50 3 Lot size

For dimensional characteristic of group of 20 bricks No. of bricks to be chosen 40 60 80

Sampling size for compressive Permissible No. strength, water absorption & of defective for efflorescence efflorescence Page 17 of 55

2001-10000 10001-35000 35001-50000

Assignment no. 2 Construction quality management Registration no. 5 0 10 0 15 1

5.

The mortar of brickwork shall be 1:6(1cement:6coarse sand).

6.

Bricks shall be soaked in water before use for a period for the water to just penetrate the whole depth of brick.

7.

Half or cut bricks shall not be used except as closures where necessary.

8.

Suitable measuring boxes shall be made for measuring sand to prepare the mortar.

9.

While laying the brickwork the frog should be face up. The joints shall be racked to an average depth of 10 mm. When plaster or pointing to be done the joints should be streaked flush.

10.

Curing shall be done for atleast seven days or as per specification.

Plumbing and sanitation 1.

All water supply/plumbing installation work to be done by licensed plumbers.

2.

All fittings/fixtures and accessories shall be of approved brands only. Prior approval of samples of all fittings & fixtures shall be taken from client.

3.

All materials of pipes (CI, GI, Glazed stoneware, etc) shall be of approved brands only. Prior approval of samples of all Piping materials & accessories shall be taken from Client.

4.

Unless otherwise specified shop drawings shall be prepared for various activities and approval of same shall be taken from Client. Page 18 of 55

5.

Assignment no. 2 Construction quality management Registration no. No cross connections with waterlines of wholesome water and wastewater pipelines shall be done.

External drainage 1.

All line out of layout designed for pipelines, manhole and inspection chambers shall be marked on the ground.

2.

The trenches for underground drainage shall be excavated as per design depth and grade.

3.

The required bed of slope shall be provided as per drawing in the pipeline to create required velocity.

4.

For joints in the pipeline the caulking material shall be of specified quality and the same shall be executed as per drawing. Socket ends of all the pipes shall face uphill.

5.

Sufficient spun yarn shall be forced into the socket and required depth should be available for filling the caulking material. If the caulking material is lead then it shall be poured in one action and when the lead is thoroughly fluid.

6.

C.I. vent pipe shall be provided at the head of drain and cowl is provided at the top.

Stoneware pipes 1.

Pipes shall be inspected and cracked or chipped pipes shall be rejected in the work. Pipes shall be thoroughly checked and cleaned before laying.

2.

The minimum dia of the pipes for outside drainage shall not be less than that specified in the drawing. Page 19 of 55

3.

Assignment no. 2 Construction quality management Registration no. The pipe trench for laying the pipes shall be of sufficient width to have easy jointing and caulking activity. The required gully traps and manholes shall be provided at the pipe junction as per drawing.

4.

Testing for water tightness shall be done as required in the Specification.

5.

Sufficient time shall be allowed for the joints to set and then trenches filled, watered and compacted.

Sanitary and plumbing- CI pipes 1.

The pipes shall be checked for specified quality and its water tightness.

2.

The pipes shall be laid in position with the socket ends facing uphill irrespective of the direction of flow.

3.

The caulking material shall be as specified. In case of lead caulking for spigot and socket joints sufficient yarn shall be forced into the socket to have the required depth for lead for filling.

4.

After completion of pipes laying in each section, water tightness shall be tested before covering with soil.

5.

Unless otherwise specified, Non-return valves or check valves shall be used of brass, duly chromium polished and provided on ascending part of the main to check the return flow.

G.I. Pipes and fittings 1. 2.

Pipes laid under ground shall be atleast 0.5m below G.L. or as specified on grads as specified. Pipes before laying shall be checked for visible damage (broken edges, cracking or spalling of pipes) if any. If detected the defective pipes shall be rejected. Page 20 of 55

3. 4. 5.

6.

Assignment no. 2 Construction quality management Registration no. After laying pipes same shall be tested under water pressure at least 100 lbs per sq. inch unless otherwise specified or mentioned. Joints shall be filled with cement or any other specified material with proper caulking finishing etc. Pipe work shall be laid in such a way that it is accessible for inspection, replacement & repairs (as far as not to be buried in walls and solid floors).

Service pipe or supply pipe shall be connected directly to W.C. All such suppliers should be connected from cisterns which shall be supplied from storage tank.

Plastering work 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.

Loose mortar if any is sticked with wall shall be brushed out. Any hole filling or repairs shall be completed prior to the plastering work. The wall surface shall be thoroughly washed with water, cleaned and kept wet before plastering is commenced. 12 mm thick, 150mm x 150 mm square gauges shall be applied horizontally and vertically, at not more than 2.0 metre interval. 1st or the undercoat coat of 12 mm plaster shall be applied in 1:5, cement: sand ratio by volume only. Proper line and level with true surface shall be provided for this coat. The surface shall be roughened and furrowed 2 mm deep with scratching tool / broom to form keys for the finishing coat. The curing shall be continued till Finish Coat is applied. The Finish coat shall be applied after the under coat is sufficiently set, but not dried and in any case within 48 hrs. Sand for the second coat of plaster shall be sieved with 3.0 mm sieve. The mortar for 2nd coat shall be in 1:2 cement: sand ratio by volume.

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12.

13. 14.

15.

16.

Assignment no. 2 Construction quality management Registration no. The 2nd or the finish coat shall be struck uniformly over the first coat and firmly pressed and levelled by using a 3.0 to 4.0 mts. Long aluminum batten. All the edges, angles, arises and junctions shall be vertical and horizontal. When the work is suspended at the end of the day, the plaster shall be left, cut clean to the to line both horizontally and vertically. When plastering is to be resumed, the edge of the old work shall be scraped, cleaned and wetted with water before plaster is applied to the adjacent areas.

The surface shall than be firmly trowelled and sponge floated to remove excess moisture and bring the sand to the surface. The surface thus prepared shall be uniformly roughened for texture. The surface of plaster shall be kept wet for at least 7 days and shall be protected from the sun (covering it by suitable method).

Health, Safety and Environment The working areas will be suitably barricaded as and when required. Proper sign boards / signages shall be erected to caution / inform the surrounding people. Personal protective equipment relevant to the nature of work will be used for the Project. Personnel handling admixtures or other chemicals will use appropriate protective equipment recommended by the manufacturer. Persons handling nuclear gauges / instruments shall wear special protective attires as recommended by the manufacturer. Care shall be taken during dismantling the structures against fall of materials from top. All excavation shall be provided with slope or bench. All electrical and mechanical equipment and installations shall be periodically inspected for safety and necessary maintenance work carried out. Page 22 of 55

Assignment no. 2 Construction quality management Registration no. Care shall be taken: (i)

to reduce generation of dust during operation,

(ii)

against pollution of water source due to construction operation

(iii)

against undue cutting of greenery / plants and trees.

Appendix I Management of QC / Materials System – Flowchart. Project InCharge

Material Engineer

QC Engineer Central Laboratory

QC Engineer Field Laboratory

QC Engineer Field Laboratory

Page 23 of 55 QC Supervisor

QC Supervisor

QC Supervisor

QC Supervisor

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

As Test Frequency

Concrete Works material and field control 1

Petro graphic Cl.1007, examination Cl. 1008 of Coarse and fine aggregate

Sample from External source of coarse and fine aggregate i.e quarry , river bed from where rock / boulders, sand are to be collected.

Page 24 of 55

IS 2386 Pt Initially 1 8 set of 3 specimens for each source of supply, subsequentl y when warranted by change of source / quality.

Remar ks

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

2

Alkali Aggregate reactivity

Cl.1007, Cl. 1008

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per Crushed External sample from proposed source of coarse and fine aggregate i.e quarry , river bed from where rock / boulders, sand are to be collected.

Page 25 of 55

As Test Frequency

Material shall IS 2386 Pt Initially 1 be Innocuous 7 set of 3 specimens for each source of supply, subsequentl y when warranted by change of source / quality.

Remar ks

Assignment no. 2 Construction quality management Registration no. Appendix II Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

Sl. NO

Test Required

3

Specific Cl.1007, Gravity of Cl.1008 aggregates

-do-

Site lab

-

IS 2386 Pt Initially 1 3 set of 3 specimens for each source of supply, subsequentl y when warranted by change of source / quality otherwise on monthly basis.

4

Water Cl.1007, absorption of Cl.1008 coarse and fine aggregates

-do-

Site lab

-

IS 2386 Pt Initially 1 3 set of 3 specimens for each source of supply.

Page 26 of 55

As Test Frequency

Remar ks

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

As Test Frequency Subsequentl y, one test for coarse aggregate and two tests for fine aggregate per day.

5

Deleterious Cl.1007, material for Cl.1008 aggregate.

-do-

External

Coarse aggregate

Page 27 of 55

IS 2386 Pt Initially 1 2 set of 3 specimens for each Coal = / < 1% source of Clay lump = / supply, < 1% subsequentl y when Finer than warranted 75µ= / < 3% by change Total = / < 5%

Remar ks

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

Fine aggregate

Coal = / < 1% Clay lump = / < 1%

As Test Frequency

Remar ks

of source / quality

Finer than 75µ= / < 3% Shale: = / < 1% Total = / 5% 6

Soundness Cl. 1007 (5 cycles) of coarse aggregate

-do-

External

Page 28 of 55

<

Sodium IS 2386 Pt Initially 1 Sulphate = / < 5 set of 3 12% specimens for each Magnesium source of Sulphate = / < supply, 18%

In case for aggreg ate water absorpt

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

Soundness (5 cycles) of fine aggregate

Sodium Sulphate = / < 10% Magnesium Sulphate = / < 15%

Page 29 of 55

As Test Frequency

Remar ks

subsequentl ion y when exceed warranted s 2% by change of source / quality.

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

7

LA abrasion Cl. 1007 value of coarse aggregate

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per -do

Site lab

Page 30 of 55

As Test Frequency

a) = / < 50% IS 2386 Pt Initially 1 for concrete 4 set of 3 specimens b) for for each concrete source of wearing coat supply, = / < 30% subsequentl y when warranted by change of source / quality otherwise on monthly basis.

Remar ks

Assignment no. 2 Construction quality management Registration no. Appendix II Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

Sl. NO

Test Required

8

Aggregate Cl. 1007 impact value of coarse aggregate

-do

9

Flakiness Cl. 1007 Index for coarse aggregate

Crushed Site lab aggregate from crusher or any other proposed source.

10

Aggregate crushing value

Crushed External aggregate from Site lab. crusher or any other proposed source

Cl.1007

Site lab

As Test Frequency

a) = / < 45% IS 2386 Pt -dofor 4 concrete b) for concrete wearing coat = / < 30% = / < 35% IS 2386, Initially 1 Pt 1 set of 3 specimens for each source of supply, subsequentl / a) = / < 45% IS 2386, yInitiallywhen at for Pt 4 time of concrete approval of b) = / < 30% source. for concrete

Page 31 of 55

Remar ks

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

As Test Frequency

Remar ks

wearing coat. 11

Gradation coarse aggregate

Table 900-6

Crushed Site lab. aggregate from proposed source. Subsequently from stock pile at site.

12

Gradation fine aggregate

Table 900-6

Fine aggregate Site lab. from proposed source.

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-

IS 2386, Initially Pt.1 before mix design for approval of source. Subsequentl y, one test for every day’s work of each fraction of coarse aggregate.

F.M. of sand IS 2386, Initially shall not be Pt.1 before mix >2 and < 3.5design for approval of source. Subsequentl

Fine aggreg ate confor ming to

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per Subsequently from stock pile at site.

13

Gradation of all –in – aggregate

Blended aggregate

As Test Frequency y, one test for every day’s work of each fraction of coarse aggregate.

Site lab.

As per IS 383 IS 2386, Initially table -5 Pt.1 during mix design. Subsequentl y one test for every

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Remar ks zone 1V as per table-4 of IS383 shall not be used for reinfor ced concret e.

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

As Test Frequency

Remar ks

day’s work. 14

Workability Table of fresh 900-6 concrete ( slump test)

At concrete At plant site As per table IS 516 batching plant and field 1700 -4 and site of construction.

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One test per each vehicle, both at concrete batching plant and site of pouring at start of work. Subsequentl y as required.

Values stated in table 1700 – 4 are not for pumpa ble concret e. For pumpa ble concret e min. slump require ment is around 120 mm.Fo

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

As Test Frequency

Remar ks r Transit Mixer minimu m slump is 50 mm

15

Strength concrete

of Cl.1716. 2.3

16

Cement ( OPC grade )

Cl.1006

1.Fineness

53

Cube test

At manufacturer’s plant.

Site lab.

As per frequency of collection of samples. As per IS As per IS MTC for Excepti 12269 12269 every batch ng At of cement bridge, manufacture Cement r’s lab. >225 m2/kg of -doother

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As per IS 516 Cl.1716.2.5

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

2.Soundness

27MPa at 3 days As per IS As per IS Frequency 12269 12269 for External test:

Remar ks grades also can be used as approv ed by the Engine er or his represe ntative.

Assignment no. 2 Construction quality management Registration no. Appendix II Sl. NO

Test Required

Test Ref.

Quality Control Inspection Plan ( QCIP) Sampling Ref Test Acceptance Test & Process Location Criteria per

1.Lime Saturation Factor

>0.80.66