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Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

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3. Section-400<br />

TABLE 405.4: APPROXIMATE QUANTITIES OF COARSE AGGREGATE AND SCREENINGS REQUIRED FOR 100/<br />

75 mm COMPACTED THICKNESS OF WBM SUB-BASE/BASE/ SURFACING COURSE FOR 10 m 2 AREA<br />

Course Aggregate Screenings<br />

Classification Size Compacted Loose Stone Screenings Crushable screenings<br />

Range thickness Quantitym3 such as Moorum<br />

in mm or gravel<br />

Grading For WBM Properties Loose<br />

classification Sub-base/ Base Quantitym3 & Size mm course<br />

(loose quantity)<br />

m3 Grading 1 90 to 100 1.21 to Type A13.2 0.27 to 0.30 LL

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