HP Bitumen Handbook - Hindustan Petroleum Corporation Limited
HP Bitumen Handbook - Hindustan Petroleum Corporation Limited
HP Bitumen Handbook - Hindustan Petroleum Corporation Limited
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11. bitumen requirements for<br />
various road applications<br />
Quantity of <strong>Bitumen</strong><br />
(Kg per 10sqm)<br />
11.1 Prime coat over granular base:<br />
a) Low porosity (WMM or WBM) 6 to 9<br />
b) Medium porosity (Cement stablized) 9 to 12<br />
c) High porosity (Gravel base) 12 to 15<br />
11.2 Tack coat:<br />
a) Normal bituminous surface 2.0 to 2.5<br />
b) Dry hungry bituminous surface 2.5 to 3.0<br />
c) Granular surface treated with primer 2.5 to 3.0<br />
d) Non-bituminous surface<br />
(i) Granular base (not primed) 3.5 to 4.0<br />
(ii) Cement concrete pavement 3.0 to 3.5<br />
11.3 Bituminous penetration macadam:<br />
a) Compacted thickness 50 mm 50<br />
b) Compacted thickness 75 mm 68<br />
11.4 Bituminous macadam:<br />
Total bitumen content - 3 to 3.5 % by weight of total mix.<br />
11.5 Built up spray grout: 15<br />
11.6 Dense bituminous macadam:<br />
Total bitumen content - 4 % by weight of total mix.<br />
11.7 Surface dressing:<br />
a) Single coat or first coat of 2 coats 18<br />
b) Second coat 10<br />
11.8 Open grade premix carpet:<br />
a) 13.2 mm stone chipping 9.5<br />
b) 11.2 mm stone chipping 5.1<br />
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