Road Works Quality Control Checklist

SR. NO	ACTIVITY AND OPERATION	CHARACTERISTICS AND INSTRUMENTS	TYPE OF CHECK	QUANTUM OF CHECK	REFERENCE DOCUMENTS AND ACCEPTED NORMS	REMARKS
1	2	3	5	6	7	9
1	GENERAL
1.1	Site preparation	Layout / Alignment: Centre line	Measurement	1	Drg./ Specification	The measurement shall be with “Total Station” or Auto level
2	EARTH WORK
2.1	Compaction control
		Moisture content before compaction	Field Test	2 Tests per 250 Cum of soil	IS: 2720 – Part VII
		Dry density of compacted layer	Field Test	1 Test per 1000 Sqm of compacted area / per layer	IS: 2720 – Part VII	1 test consists of 12 nos of tests
2.2	CBR (California Bearing Ratio)	Penetration resistance of sub-soil	Field Test		Specification
3	COARSE AGGREGATE FOR WBM
		Abrasion value / Aggregate impact value	Lab Test	One test per source	IS: 2386 (Part – IV)
		Grading of Aggregate / screening	Field Lab Test	One test per 500 Cum	Specification
		Flakiness index for aggregate of top layer	Field Lab Test	One test per 500 Cum	IS: 2386 Part – 1
		Plasticity Index of Binding Material	Field Lab Test	One test per 500 Cum	IS: 2720 Part – V
4	ASPHALT CONCRETE
		Binder content	Test	One per lot	IS: 73 / 2171 / 454
		Coarse Aggregates	Test	One per lot	IS: 383
		Fine Aggregate	Test	One per lot	IS: 383
		Mix Design	Lab Test	Once	Specification
5	PREMIX
		Temperature Control	Field Test	Once per truck	Specification
		Mix proportion Test	Premix Plant	Once per Source	Specification
6	WORKMANSHIP	Control of Grade, Camber, Thickness & Surface, alignment of Brick edging & Formation width	Visual / Measurement	1	Drg. / Specification	The measurement shall be done with Auto level, straight edge & camber boards

60 & 40mm Oversize Hand Broken Metal (For WBM)

Item	Tests to be Performed	Method of Test	Reference Document	Permissible Limit	Frequency	Remarks
60 & 40mm Oversize Hand Broken Metal (For WBM)	a) Quality	Field		As per remark	Random	Metal should be cubical, have sharp edges, hard, tough, sound, durable, clean, dense, close grained & free from soft, decayed & weathered portions.
	b) Abrasion value*	Lab	IS 6579 - 1981	Not more than 50%	1 test / 200 m³ or part thereof	* Either Abrasion or Impact Test should be conducted.
	c) Impact value*	Lab	IS 6579 - 1981	Not more than 40%
	d) Water absorption	Lab	IS 6579 - 1981	Not more than 1.5%
	e) Soundness - Na₂SO₄	Lab	IS 6579 - 1981	Max. 20%	1 test / Source
	e) Soundness - MgSO₄	Lab	IS 6579 - 1981	Max. 30%
	f) Flakiness **	Lab	IS 6579 - 1981	Max. 15%	1 test / 200 m³ or part thereof	** For 40mm H/B metal only.
	g) Grading - 60mm metal	Lab		As per Table and tolerances mentioned in specifications	1 test / 100 m³ or part thereof
	g) Grading - 40mm metal	Lab

Grading Table for 60mm Hand Broken Metal

Sieve Size	% Passing
80 mm	100
50 mm	0

Grading Table for 40mm Hand Broken Metal

Sieve Size	% Passing
63 mm	100
60 mm	35 - 70
12 mm	0 - 5

60 mm H/B metal: Not more than 20% of any sample shall exceed 90 mm (about 3.5") in its greatest dimension for WBM.
Chura and dust may be allowed up to 15% of the volume of the stack.

40 mm H/B metal: Not more than 20% of any sample shall exceed 65 mm (about 2.5") in its greatest dimension for WBM.
Chura and dust may be allowed up to 15% of the volume of the stack.

Hard Murum for WBM

Item	Tests to be Performed	Method of Test	Reference Document	Permissible Limit	Frequency	Remarks
Hard Murum for WBM	a) Quality	Field		As per remark	Random	Should be hard & free from soft murum, earth, organic matter & other deleterious or soft material
	b) Gradation	Lab	Circular of PWD Standard specification	80 mm: 95% passing 25 mm: 2% max passing	1 test per source
	c) Atterberg limit	Field/Lab	PWD Standard Specification & MORTH 404.2.6	Liquid Limit: Max. 20 Plasticity Index: Max. 6	1 test per 25 m³ of binding material

Soft Murum for WBM

Item	Tests to be Performed	Method of Test	Reference Document	Permissible Limit	Frequency	Remarks
Soft Murum for WBM	a) Quality	Field	MORTH 404.2.6	As per remark	Random	Should be of granular type, free from earth, organic matter, black cotton soil & any other deleterious material
	b) Atterberg limit	Field/Lab		Liquid Limit: Max. 20 Plasticity Index: Max. 6	1 test per 25 m³ of binding material

Stone Screening

Stone Screening

a) Quality / Grading

Field/Lab

MORTH 404.2.6 Table No. 400-8

As per remarks and below table

1 test per 25 m³ of screening material

Quality: Should be free from organic deleterious matter. Should be tough & dense.

Grading of Screening (Type B - 11.2 mm)

Grading Classification	Size of Screening	IS Sieve Designation	% by Weight Passing the IS Sieve
B	11.2 mm	11.2 mm	100
		5.6 mm	90 - 100
		180 micron	15 - 35

Laying & Compaction

Laying & Compaction

Moisture Content while compaction

Field

MORTH Clause No. 305.3.5.2

Should not be more than OMC by +1% or -2%

While conducting FDD check for every layer

Breaking of earth clods & embankment material shall be placed in successive horizontal layers of 20 cm to 30 cm depth, extending to the full width of the embankment including the slopes at the level of the particular layer & 30 cm more on both sides to allow compaction of the full specified section. The extra loose stuff at the edges shall be trimmed later after completion of bank work without cost, leaving the correct section fully compacted.

Each layer of embankment shall be watered, levelled & compacted to the densities specified in MORTH Table 300-2 before the succeeding layer is placed.

Final Surface

Item	Parameter	Method	Reference	Permissible Limit	Frequency	Remarks
Final Surface	Camber	Field	-	2.5% to 5%	At every 30 m interval