Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

4. Quality Monitoring
only in exceptional suspect cases that detailed laboratory tests may be necessary. The Quality
Monitors need to bear in mind that all the checks made by them should be in accordance with the
provisions made in the approved Plans and Bill of Quantities forming part of the Contract.
3.2. For purposes of Quality Monitoring, only random checks are envisaged. For soils and other road
materials being used at site, a representative sample from the borrow pit in use or stockpiled
material can be collected at random. Similarly, while checking placement moisture content during
compaction, a random sample can be collected and its moisture content determined using a Rapid
Moisture Meter. For insitu density determination by sand replacement method, the location of the
test can be selected at random. A similar approach can be adopted during bituminous and cement
concrete construction. However, where a completed section is to be checked, the entire completed
section should be divided into 10 sub-sections, of equal length. Two such sub-sections may be
selected at random for carrying out the needed tests. The longitudinal profile should be tested by
a 3 m straight edge in a stretch of atleast 9 m length and the transverse profile at two or three
locations at each 100 m length.
4. ITEMS TO BE CHECKED BY QUALITY MONITORS
The various items to be checked by the Quality Monitors are given below, with respect to the
MORD Specifications for Rural Roads.
1. Section 100 : General
1.1 Quality Arrangements
1.2 Attention to Quality
1.3 Setting out and Geometrics
2. Section 300 : Earthwork
2.1 Earthwork and Subgrade/ Improved Subgrade in Embankment/ Cutting
3 Section 400 : Granular Sub-bases, Bases and Surfacings
3.1 Granular Sub-base/ Stabilized Soil Sub-base
3.2 Base Course : Water Bound Macadam
3.3 Shoulders
4 Section 500 : Bituminous Construction
4.1 Prime Coat
4.2 Tack Coat
4.3 Bituminous Layer-Surface Dressing
4.4 Bituminous Layer-Premix Carpet
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