Materials Engineering Review tables

Reference

MINIMUM REQUIREMENTS FOR SUBMISSION OF SAMPLES

MATERIALS

1. Cement 2. Asphaltic material 3. Aspahlt mix 4. Aggregates a. coarse aggregate b. fine aggregate 5. Soil aggregates a. Classification b. Routinary tests c. MDR test and CBR 6. Non – Reinforced Concrete Pipes 7. Reinforced Concrete Pipes 8.Steel pipe (galvanized) 9. Concrete hollow blocks (CHB) a. strength b. moisture content 10. Steel bar 11. Steel sheet (galvanized) 12. Wire strand 13. Gabion 14. Paints 15. Joint – filler (pre – molded) 16. Curing compound 17. Concrete cylinder 18. Concrete beam

MNIMUM TESTING REQUIREMENTS 1 sample per bags 1 sample per 200 drums 1 sample per 1 sample per m3

2000 40T or 130T 1,500

MINIMUM QUANTITY/VOLUME OF MATERIALS FOR EACH SAMPLE SUBMITTED 10 kg 5L 20 kg 70 kg 50 kg

1 sample per 1,500 m3 2 pipes min./0.5% of no. of pipes 1 sample per 50 pipes or 2% of # of pipes 1 sample per 500 lengths 1 sample per 10,000 units 1 sample per 10T 1 sample per 100 sheets 1 sample per 20T

20 kg 50 kg 50 kg 2 pipes 1 pipe (1 m length) 2 pcs Of 100 mm long taken from both ends w/ thread 3 units 3 units 1m 3 pcs 60mm x 60mm 2m 1m x 2m 1 - 4L can

1 sample per 100 cans

1 – 400mm x 400mm 1 sample per 75 m 1 sample per 75 m3 3

1L 1 set (3 cylinders) 1 set (3 cylinders)

19. Concrete core 20. Asphalt core

or 1 day pouring 5 holes for every km/lane 1 core for every 100m

21. Water a. Chemical analysis b. Sediment load analysis 22. Structural steel/sheet

1 sample per 50T

23. Hydrated lime

1 sample per 100T

500 ml 500 ml Reduced section as prescribed

PAYMENT ADJUSTMENT FOR PAVEMENT WITH DEFICIENCY IN STRENGTH

Deficiency in strength of concrete pavement Percent (%) Less than 5 5 to less than 10 10 to less than 15 15 to less than 20 20 to less than 25 25 or more

Percent (%) of contract price allowed 100 80 70 60 50 0

PAYMENT ADJUSTMENT FOR PAVEMENT WITH DEFICIENCY IN THICKNESS

Deficiency in the average thickness per lot(mm) 0–5 6 – 10 11 – 15 16 – 20 21 – 25 more than 25

Percent (%) of contract price per lot 100 95 85 70 50 removed and replaced (no

payment)

COMMON LABORATORY TESTS

Kind of material

Type of test

Cement Coarse aggregate

Physical and chemical Grading Specific gravity Absorption Abrasion Unit weight

Test duration per sample (min. # of days) 8 3 3 3 1 1

Fine aggregate

Grading Specific gravity Absorption Unit weight

3 3 3 1

Soil aggregates mixture (subbase, base and surfaces courses

Grading

3

Liquid limit Plastic limit Compaction CBR Abrasion

3 3 3 7 1

Asphalt Paint

Physical Physical and chemical

4 4

Concrete cylinder

Compressive

1

Concrete beam

Flexural

1

Concrete core

Cutting of sample

1

LIMITATIONS/VARIATIONS ITEM 104 Abrasion loss Plastic index Liquid limit Permitted variation from design THICKNESS OF LAYER Permitted variation from design LEVEL OF SURFACE Permitted surface irregularity measured by 3-m straight edge Permitted variation from design cross fall or camber Permitted variation from design

ITEM 105

ITEM 200 50% max 12% max 35% max

1TEM 201 50% max 6% max 25% max

±20m m

±10m m

+15m m, -5mm

+20m +10m m, m, -30mm -20mm

-5mm, -10m m

+15m m, -5mm

6% max 30% max

ITEM 202 45% max 6% max 25% max

ITEM 203 4% to 10%

ITEM 300 45% max 4% to 9% 35% max

30mm

20mm

5mm

5mm

±0.5%

±0.3%

±0.2%

+0.2%

±0.1%

±0.1%

±0.1%

+0.1%

longitudinal grade over 25m length California Bearing Ratio

25% min

80% min

80% min

100%

80% min

DIMESION OF PILES Length of pile less than 12m 12m to 18m more than 18m

Ø (1m from the butt) Minimum maximum 300mm 450mm 320mm 450mm 350mm 500mm

Minimum tip Ø 200mm 180mm 150mm

REMOVAL OF FORMS Scope of work

Minimum time

Minimum % of design strength

14 days

80%

14 days 1 day 2 days

70% 70% 70%

1 day

70%

Centering under girders, beams, frames or arches Floors slabs Walls Columns Sides of beams and all other vertical surfaces

SIEVE SIZES NO. 200 NO. 100 NO. 60 NO.50 NO. 40 NO. 30

0.075mm 0.150mm 0.300mm 0.250mm 0.425mm 0.600mm

NO. NO. NO. NO. NO. NO.

20 16 12 10 8 4

0.840mm 1.180mm 1.700mm 2.000mm 2.360mm 4.750mm

DETAILS OF WELDS Size of fillet weld 5mm 6mm 8mm 10mm 13mm 16mm

Maximum thickness of part 13mm 19mm 32mm 51mm 152mm 152mm and above

MINIMUM LAP FOR SPLICING

Tension Compression

GRADE 40 24 times bar Ø 20 times bar Ø

GRADE 60 36 times bar Ø 24 times bar Ø

MINERAL FILLER SHALL BE GRADE WITH IN THE FF. LIMITS (703-A) Sieve size NO. 30 NO. 50 NO. 200

Mass % passing 100 95 – 100 70 - 100

HYDRATED LIME SHALL CONFORM TO THE FF. REQUIREMENTS (701) Sieve size NO. 20

Mass % passing 100

NO. 200

85 - 100

MINIMUM WEIGHT OF SAMPLE FOR MOISTURE CONTENT Sieve No. (passing) NO. 40 NO. 10 NO. 4 ½” 1” 2”

Weight 25 grams 50 grams 200 grams 300 grams 500 grams 1000 grams