irc.gov.in.019.2005.pdf

IRC:19-2005

STANDARD SPECIFICATIONS

AND CODE OF PRACTICE FOR WATER BOUND MACADAM (Third Revision)

THE INDIAN ROADS CONGRESS 2005

IRC: 19-2005

STANDARD SPECIFICATIONS

AND CODE OF PRACTICE FOR WATER BOUND MACADAM (Third Revision)

Published by

THE INDIAN ROADS CONGRESS Sector 6,

Kama Koti Marg, R.K. Puram, New Delhi -

1

10 022

2005 Price Rs. 100/-

(Packing

& Postage Extra)

IRC: 19-2005 First

Published

April,

1966

Reprinted

February, 1970

Reprinted

Reprinted

May, 1972 November, 1972 May, 1977 September, 1982 March, 1 987 (incorporates amendment No. May, 1988 March, 1999 October, 2000 April, 2002 May, 2005 September, 2006 February, 2008

Reprinted

October, 2009

First

Revision

Second Revision Reprinted RepriiK.

Reprinted Reprinted Reprinted

Reprinted Third Revision

Reprinted

Reprinted

:

July,

1

& Corrected Sieve sizes)

20 11

(The Rights of Publication and Translation are reserved) The official amendments to this code would be published by the in its periodical, ^Indian

effective

Highways

',

which shall be considered as

and as part of the Code/Guidelines/Manual, from the date specified therein

Printed at Aravali Printers

IRC

& Publishers (P.) Ltd. New Delhi (500 copies)

etc.

1

10020

IRC: 19-2005

CONTENTS Personnel of the Highways Specifications and Standards Committee

(i)

& (ii)

1.

Introduction

1

2.

Scope

3

3.

Materials

4

4.

Construction Procedure

7

5.

Surface Evenness of

6.

Rectification of Defective Construction

7.

Construction of

WBM over Narrow Widths

10

8.

Maintenance of

WBM Wearing Courses

10

WBM Course

9

10

Digitized by the Internet Archive in

2014

https ://arch ve org/detai Is/govlawi rcy 2005sp 1 9_0 i

.

IRC: 19-2005

PERSONNEL OF THE HIGHWAYS SPECIFICATIONS AND STANDARDS COMMITTEE (As on 10-12-2004)

2.

V. Velayutham (Convenor) G. Sharan (Co-Convenor)

3.

Chief Engineer

1.

(

(R&B) S&R

Addl. Director General, Ministry of Shipping,

Road Transport

& Highways, New Delhi Member

(Tech),

NHAI, New Delhi

Ministry of Shipping,

Road Transport & Highways, New Delhi

Member-Secretary )

Members Bahadur

A.P.

Chief Engineer, Ministry of Shipping, Road Transport

Highways, 5.

P.K. Chakarabarty

P.K. Dutta

Desai

J.P.

&

New Delhi

Executive Director, Consulting Engg. Services

New 7.

Delhi

Chief Engineer Ministry of Shipping, Road Transport

Highways, 6.

New

&

(I)

Pvt. Ltd.,

Delhi

Vice-President (Tech. Ser.), Gujarat Ambuja Cements Ltd.,

Sr.

Ahmedabad Dhingra

Professor, Indian Institute of Technology,

Mumbai

8.

Dr. S.L.

9.

A.N. Dhodapkar

10.

D.P.

11.

S.K.Gupta

Chief Engineer, Uttaranchal

12.

R.K. Jain

Chief Engineer (Retd.), Sonepat

13.

Dr. S.S. Jain

Coordinator (COTE), Indian Institute of Technology, Roorkee

14.

Dr. L.R. Kadiyali

Chief Executive, L.R. Kadiyali

15.

Prabha Kant Katare

Joint Director (PI.), National Rural

Gupta

NITHE,

Director,

DG (RD) & AS, MOST (Retd.), New Delhi

Professor

Mathur

J.B.

17.

H.L.

Meena

Momin

S.S.

19.

A.B. Pawar

20.

Dr.

21.

S.S. Rathore

Gopal Ranjan

New

& Associates, New Delhi Roads Dev. Agency (Min

Delhi

Chief Engineer (Retd.),

NOIDA

Chief Engineer-cum-Addl. Secy, to the Govt, of Rajasthan,

PWD, 18.

PWD, Almora

&

of Rural Dev.), 16.

NOIDA

Jaipur

Secretary (Works), Maharastra

PWD, Mumbai

Secretary (Works) (Retd.), Pune Director, College of Engg.

Roorkee

Secretary to the Govt, of Gujarat,

R&B

Department,

Gandhinagar 22.

Arghya Pradip Saha

23.

S.C.

24.

Dr. P.K.

25.

Dr. C.K. Singh

Sharma

Nanda

Sr.

Consultant,

DG

&

(RD)

New Delhi

AS,

Director, Central

Engineer

in

Ranchi

(i)

MORT& H (Retd.), New Delhi Road Research

Chief-cum Addl.

Institute,

Comm cum

New

Delhi

Spl Secy. (Retd.)

IRC: 19-2005 26.

Nirmal

Jit

Member

Singh

New 27.

Highways Authority of

(Tech.), National

India,

Delhi

Chief General Manager, National Highways Authority of India,

A.V. Sinha

New

Delhi

28.

N.K. Sinha

DG

29

V.K. Sinha

Chief Engineer, Ministry of Shipping, Road Transport

(RD)&SS,

Highways, 30.

K.K. Sarin

31.

T.P.

32.

Maj. V.C. Verma

DG

Velayudhan

(RD)

MOSRT& H

New

&

(Retd.),

New

MOST

AS,

(Retd.),

New

Delhi

New

Delhi

Executive Director, Marketing, Oriental Structural Engrs.

New

Delhi

R&B

33.

The Chief Engineer (NH)

(B. Prabhakar Rao),

34.

The Chief Engineer

(S.B. Basu), Ministry of Shipping,

(Pig

.

Highways,

The Chief Engineer (Mech)

New

Department, Hyderabad

New

Road Transport

&

Road Transport

&

Delhi

(V.K. Sachdev), Ministry of Shipping,

Highways,

Delhi

36.

The Chief Engineer (Mech)

PWD,

37.

The Chief Engineer (NH)

(Ratnakar Dash), Sachivalaya Marg, Bhubaneshwar

38.

The Engineer-in-Chief

(Tribhuvan

39.

The Chief Engineer

Kolkata

vlational

President

(S.S.

Ram)

PWD, Lucknow PWD, Bangalore

U.P.

Highways,

Ex-Officio 40.

&

Delhi

Addl. D.G., Directorate General Border Roads,

Pvt. Ltd,

35.

Delhi

Members

Momin), Secretary (Works), Mumbai

Indian Roads Congress

41

.

Director General

(Indu Prakash), Ministry of Shipping,

(Road Development)

Highways,

& 42.

New

Road Transport &

Delhi

Special Secretary

Secretary

(R.S. Sharma), Indian

Roads Congress,

New

Delhi

Indian Roads Congress

Corresponding Members

PWD (Retd.), Panchkula

1.

M.K. Agarwal

Engineer-in-Chief, Haryana

2.

Dr. C.E.G. Justo

Emeritus Fellow, Bangalore University, Bangalore

3.

M.D. Khattar

Executive Director, Hindustan Construction Co. Ltd.,

4.

Sunny C. Madhathil

Director (Project), Bhagheeratha Engg. Ltd., Cochin

5.

N.V. Merani

Principal Secretary, Maharashtra

(ii)

PWD

(Retd.),

Mumbai

Mumbai

IRC: 19-2005

STANDARD SPECIFICATIONS AND CODE OF PRACTICE FOR

WATER BOUND MACADAM 1.

INTRODUCTION

Sitaramanjaneyulu, Scientists of Central Road Institute. The draft of the revised code was presented and discussed in the meeting of Flexible Pavement Committee held on 1 th May, 2002 and it was decided that the draft document may be modified in the light of the comments of the members and sent to Convenor, Flexible Pavement Committee for forwarding to Highways Specifications & Standards (HSS) Committee. Dr.

Research

was originally published in 1 966. The first revision of the standard was approved by the Specifications and Standards Committee in their meeting held on the 29 th & 30 th September, 1972, by the Executive Committee in their meeting held at Gandhinagar on the 25 th November, 972 and by the Council in their 79 th meeting held at Gandhinagar on the 25 th November, 1972 for 1 . 1 This standard

1

at its

the

th

meeting held on the 28 August, 1 976,

the tolerance of surface evenness

the basis of

document and forwarded to Convenor, Flexible Pavement Committee. The draft standard was

IRC

publication. Following the decision of the

Council

P.K. Jain, and Shri K. Sitaramanjaneyulu modified

IRC

reviewed by the Flexible Pavement Committee

were revised on

(constituted in January, 2003) in

Special Publication 16 "Surface

Evenness of Highway Pavements" and the second

on

was published in May, 1 977 amended in March, 1987.

st

1

its

meeting held

August, 2003 and authorized a Group

revision of standard

consisting of Shri S.C. Sharma, Shri K.K. Singal

which was further

document members and forward the same to HSS Committee. The draft standard was finalised by the Group in its meeting held on 7 th May, 2004 and then sent for and Dr. P.K. Jain

to finalise the

incorporating the suggestions of the

The decision to review and revise the code of practice was taken during meeting of Flexible Pavement Committee on 10 th February, 2001 The task was assigned to Dr. P.K. Jain and K. .

Members

consideration of HSS Committee.

of Flexible Pavement Committee

S.C.

Sharma

Secretary

up

to

December 2002

Convenor Co-Convenor

R&B, Gujarat.

(S.S. Rathore)

Member-Secretary

Dr. S.S.Jain

Members D. Basu

Prof. C.G. Swaminathan C.E (R) S&R, T&T (Jai Prakash)

A.K. Bhatnagar S.K. Bhatnagar Dr.

Dr. Animesh Das Dr.M.PDhir D.P. Gupta

Rep. of DG(W), E-in-C Br.

Rep. of DGBR (Hargun Das)

FP Dn., CRRI

Dr. L.R. Kadiyali

Head,

Dr.CE.G.Justo

(Dr. Sunil

H.L.

AHQ

(Col. R.N. Malhotra)

Meena

Director,

Bose)

HRS, Chennai

Prof. B.B. Pandey R.K. Pandey

Corresponding Members

Sukomal Chakrabarti

S.KNirmal

Dr. P.K. Jain

Smt. A.P. Joshi R.S. Shukla

1

IRC: 19-2005

Members

of Flexible Pavement Committee reconstituted w.e.f. January 2003 S.C.

Sharma

Chief Engineer (Roads),

PWD,

Convenor Co-Convenor

....

Guwahati

Member-Secretary

Dr. S.S. Jain

Members (R&B) S&R

Aran Bajaj Sukomal Chakraborty Dr. Animesh Das D.P. Gupta

Chief Engineer

Dr. L.R. Kadiyali

A Rep.

D. Mukhopadhyay

(Col. V.K.P. Singh)

Dr. B.B.

MORT&H A Rep.

of IOC, Faridabad

(B.R. Tyagi)

A Rep.

Pandey

of E-in-C's Branch of

DGBR

R.K. Pandey

(P.K.

R.S. Shukla

Area Co-ordinator (FP Dn.), CRRI

Mahajan)

K.K. Singal

(Dr. Sunil

Dr. A. Veeraragavan

Director,

Bose)

HRS, Chennai

Corresponding Members Dr. P.K. Jain

S.K. Nirmal

Dr. C.E.G. Justo

The Manager (Bitumen), HPC,

J.T.

Mumbai

Nashikkar

m mm

The draft document finalised by the Flexible Pavement Committee was considered by the Highways Specifications and Standards Committee th in its meeting held on 10 December, 2004 and

(Vijay Kr. Bhatnagar)

metre millimetre

1.2.1.2 Abbreviations

approved with certain modifications.

The Council

in its 173

rd

meeting held on 8 th

January, 2005 at Bangalore approved the

BS

British Standards

IRC

Indian Roads Congress

IS

Indian Standard by Bureau of

document

for publication subject to modification in light of

Indian Standards

comments/suggestions given by the participants. The document was modified suitably by Shri S.C. Sharma, Convenor, Flexible Pavement Committee and printed by IRC as Third the

LL

Liquid Limit

PI

Plasticity

WBM

Water Bound Macadam

Index

Revision of IRC: 19.

1.2.

1.3.

References

1.3.1

The following IRC, IS and BS

Symbols and Abbreviations

For the purpose of this Standard, the following symbols for SI units and abbreviations 1.2.1

standards

contain provisions, which, through reference in the text, constitute

shall apply.

provisions of this standard. At the

time of publication, the editions indicated were valid. All standards are subject to revision

1.2.1.1 Symbols for SI Units

kN

parties to agreements based

on

and

this standard are

encouraged to investigate the possibility of applying kilo-newton

2

IRC: 19-2005 most recent editions of the standard indicated below

the

No.

Title

IRC:SP: 16-2004

Guidelines for Surface Evenness of

Highway Pavements

(First Revision)

IS460:Part

1

:

1985

Specification for test sieves: Part

1

cloth test sieves (Third

Revision) IS 460:Part 2

:

Specification for test sieves: Part 2 Perforated plate test

1985

sieves (Third Revision)

IS460:Part3: 1985

Specification for test sieves: Part 3

of apertures of

test sieves

Method of Test

IS 2386:Part 1-1963

(Third Revision)

for Aggregates for Concrete

-

Part

1

and Shape (Reaffirmed 2002 Amds. 3)

Particle Size

Method of Test

IS 2386:Part 3-1963

Methods of exami nation

for Aggregates for Concrete

- Part

3:

Specific gravity, density, voids, absorption and bulking

(Reaffirmed 2002)

Method of Test for Aggregates

IS 2386:Part 4-19

Methods

IS 2430: 1986

for

for Concrete

- Part 4:

Sampling of Aggregates for Concrete

(First

Revision) (Reaffirmed 2000)

Method of test

IS 5640: 1970

for determining aggregate impact value of

soft coarse aggregates

(Reaffirmed 1998 Amds. 1

IS 14685-1999

BS

1047:1983

Specification for air-cooled blast furnace slag aggregate for use in construction (Replaced by

2.

SCOPE

EN

1

2620)

subgrade, sub-base, base or existing pavement as the case

may

be.

WBM

may

be used as a sub-

base, base course or surfacing course depending

This Standard covers the specification for

Bound Macadam as SubBase Course and Surfacing Course of a road pavement. construction of Water

upon category of road.

In

each case,

it

shall

be

constructed in accordance with the specifications

base,

given in this Code and

in

conformity with the

lines,

grades and cross-sections shown on the drawings 2.1.

Description

2.1.1

Water Bound Macadam

or as directed.

(WBM)

2.1.2

shall

The

WBM shall not be laid on an existing

consist of clean, crushed coarse aggregates

bituminous top surface without scarifying or

mechanically interlocked by rolling, and voids

providing adequate measures for proper bond and

thereof filled with screening and binding material

drainage at the interface of existing bituminous

with the assistance of water, laid on a prepared

surface and

3

WBM layer.

IRC: 19-2005

WBM should not be laid directly over a

2.1.3 silty

or clayey subgrade.

It is

from

advisable to lay a

elongated, soft and disintegrated

flat,

particles, dirt or other deleterious materials.

suitable intervening granular layer.

Crushed

3.1.3 3.

MATERIALS

Coarse Requirements

Aggregates

General

shall

be angular

shall

in shape,

be

slag.

reasonably uniform

in

quality and density, and generally free from soft,

elongated and material.

Coarse aggregates

3.1.1

Crushed slag

:

manufactured from air-cooled blast furnace It

3.1.

slag

shall consist of clean

1 1

.2

kN

flat

pieces, dirt or other deleterious

Crushed slag

m

per

3

shall not

weigh

and the glassy material

crushed or broken stone, crushed slag, over burnt

not be in excess of 20 per cent.

brick (Jhama) metal or naturally occurring

comply with

It

less than in

it

shall

should also

the following requirements.

aggregates such as kankar and laterite of requisite quality as stated hereinafter.

Use of crushable

(i)

Chemical

To comply with

stability

type aggregates should generally be restricted to

requirement of

lower layers of the pavement. The aggregates shall

Appendix of BS

conform Table

1047

to the physical requirements set forth in

1.

(ii)

Sulphur content

(iii)

Water absorption

(IS

Crushed or broken stone

3.1.2.

:

Crushed

or broken stone shall be hard, durable and free

Table SI.

1:

2.

Maximum

10 per cent

)

(IS 2386, Part 3)

Test +

Test

WBM

Method

equirements

IS

(Part 4)

Max. 50%

Aggregate Impact Value*

2386 (Part 4) or IS 5640**

Max. 40%

Base course with

Los Angeles Abrasion Value* or

IS

(Part 4)

Max. 40%

bituminous surfacing

Aggregate Impact Value*

2386 (Part 4) orlS 5640**

Max. 30%

Flakiness Index***

IS

(Part 1)

Max. 20%

Los Angeles Abrasion Value* or

IS 2386 (Part 4)

Max. 40%

Aggregate Impact Value*

IS 2386 (Part 4)

Max. 30%

Surfacing course

3.

2 per cent

Los Angeles Abrasion Value* or

Sub-base

1.

14685-1999

Maximum

Physical Requirements of Coarse Aggregates for

No. Type of Construction

:

2386

IS

2386

IS

2386

or IS 5640** IS 2386 (Part 1)

Flakiness Index***

Notes

Max. 15%

:

may

*

Aggregates

**

Aggregates like brick metal, kankar,

satisfy the

requirements of either the Los Angeles

tested for impact value under

laterite, etc.,

wet conditions

*** The requirement of Flakiness Index

shall

in

which get softened

test

in

or Aggregate Impact Value Test.

presence of water should invariably be

accordance with IS 5640.

be enforced only

in the case

of crushed/ broken stone and crushed

slag.

+

Samples for procedure

tests shall

set forth in IS

be representative of the materials to be used and collected 2430.

4

in

accordance with the

IRC: 19-2005

O verburnt

3.1.4

metal shall be

(

Jhama) brick metal B rick

made

out of overburnt bricks or

3.2.3

:

The crushable type aggregates

like brick

metal, kankar and laterite shall also generally

brick bats and be free from dust and other

satisfy the grading requirements of Table 2.

deleterious materials.

Relaxation in grading

may be

permitted for such

materials with the permission of the Engineer. 3.1.5

Kankar

Kankar

:

shall

be tough having a

blue almost opalescent fracture.

any clay

in the cavities

It

shall not contain

3.3 Screenings

between nodules. 3.3.1

3.1.6 Laterite

Laterite shall be hard, compact,

:

shall not

be used.

material such as kankar,

and Grading

and

one of the grading given shall

in

moorum or gravel (other may also be

than river-borne rounded aggregate)

used for

The coarse aggregates

However, from

economic considerations, predominantly non-plastic

Requirement 3.2.1

voids in the coarse

as the coarse aggregates.

those containing ochreous clay

3.2 Coarse Aggregates-Size

fill

aggregates shall generally be of the same material

heavy and of dark colour. Light coloured sandy laterities, as also

Screenings to

this

purpose provided that the liquid limit

plasticity

index of such material are below 20

and 6 respectively and the fraction passing 75 micron

conform to Table 2. Grading 1 shall

sieve does not exceed 10 per cent.

be used only for sub-base courses, with a

compacted layer thickness of 100

The

3.2.2

size of aggregates to

As Tar as possible, screenings shall conform to the grading shown in Table 3.

mm.

3.3.2

be used would

Screenings of type

depend on the type of aggregates available and compacted thickness of the layer.

Table 2

:

Grading No.

Size

1

90

2

Size

with coarse aggregates of grading

1,

and of type

B

3.

With coarse

with coarse aggregates of grading

and Grading Requirement of Coarse Aggregate for

Range and compacted

Sieve Designation

thickness for layer

(IS 460)

mm to 45 mm (100 mm)

mm 90 mm 63 mm 45 mm 22.4 mm 125

53

WBM

Per cent by Weight Passing the Sieve 100

90-100 25-60 0-15 0-5

mm to 45 mm (75 mm)

90 mm

100

90-100

mm to 22.4 mm (75 mm)

mm 53 mm 45 mm 22.4 mm 63 mm 53 mm 45 mm 22.4 mm 11.2 mm

63

63

3

A shall be used in conjunction

5

25-75 0-15 0-5

100

90-100 65-90 0-10 0-5

IRC: 19-2005 Table 3

:

Grading Requirements of Screenings for

Grading

Size of Screenings

Sieve Designation

Classification

(IS 460)

Passing the Sieve

A

13.2

mm

11.2

mm

A

or type

B

95-100

80 micron

0-10

mm 5.6 mm

100

90-100

80 micron

15-35

100

1

<

K

available nearby, limestone dust or kankar nodules

may be used as

may be used. For crushable screenings moo rum and gravel, the grading given in Table

screenings like

mm 11.2 mm 5.6 mm 11.2

1

aggregates of grading 2, either type

Percent by Weight

13.2

1

B

WBM

3.4.2

3 shall not be binding.

binding material.

Application of binding material

may

not

be necessary, where the screenings consist of

The use of screenings may be dispensed with when crushable type soft aggregates such

moorum

3.3.3

crushable type material like

as brick metal, kankar, laterite, etc., are used as

However, for used as a surfacing course, where the PI of crushable type screenings is less

coarse aggregates, as these are likely to get

than 4, application of a small quantity of binding

crushed to a certain extent during rolling.

material having PI of 4-6 top.

3.4 Binding Material 3.4.1

WBM as

consist of a fine grained material passing

possessing PI value of 4-8 as a surfacing course,

3.5.1

when

and

the

WBM

less than

is

bituminous surfacing.

Table 4

:

If

Approximate quantities of coarse

aggregates and screenings required for 100

used

compacted thickness of

6 when the

limestone formations are

materials for

Classification

sub-base/base or surfacing

Screenings

Size

Loose

Range

Quantity

Stone Screenings

Grading

Loose

classification

quantity

and

1

WBM

WBM

Coarse Aggregates

Grading

sub-base course

Approximate Quantities of Coarse Aggregates and Screenings Required for mm compacted thickness of Sub-base Course per 10 m 2

100

1

WBM

(mm)

(m 3 )

2

3

90 to

1.21 to

45

1.43

mm

are given in Table 4. Likewise, quantities of

adopted as a sub-base/base course with

is

The quantity of screenings could be reduced

3.5 Quantities of Material

100 per cent through 425 micron sieve and

WBM

would be required at the

correspondingly.

Binding material to be used for

filler shall

or gravel.

WBM

Crushable Type Such as

Moorum

Properties

and

size

or Gravel

size

(m 3 )

(m 3 ) 5

6

7

A

0.27 to

mm

LL