Common use of Gravel Rolling Clause in Contracts

Gravel Rolling. The purpose of the operations described in this paragraph is that of incorporation the . gravel in the metalled surface in order to blind or seal the surfacing from water as well as provide a thin cushion over the finished surface which will produce a smooth riding surface. After the wet rolling of the surface is done until there is no movement of the stones, the stones all well assembled and their interlocking complete, the surface shall be tested with a 3m (10 feet) straight edge laid parallel to the centre line of the road and any irregularity exceeding 12.5mm (one-hald inch) shall be corrected by loosening the surface and recompacting the same after adding or removing materials as required. Gravel 'J; shall be spread evenly over the surface to a thickness of one-fourth the thickness of the surface course 9 or as directed by the Superintending Engineer in successive thin layers. After each thin application of gravel, the surface shall be rofusely sprinkled with water, the resulting slurry swept in with hand brooms to fill the voids properly and the surface rolled again water being applied to the wheel in order to wash down the gravel that may be slicking to them. The slurry shall be swept-up from the haunches to the crown and upgradient and no pat of the slurry shall be allowed to dlow up the road surface as this will result in the loss of soil fines, which impart binding properties to the gravel. The spreading of gravel binder sprinkling of water, sweeping with brooms and rolling shall continue until the slurry that is formed after filling all voids, will form a wave before the wheels of the moving roller. The rolling at all times shall begin at the sides arid progress towards the centre, thoroughly covering the entire surface with the rear wheel till a hard smooth solid paving is produced.

Gravel Rolling. The purpose of the operations described in this paragraph is that of incorporation the . gravel in the metalled surface in order to blind or seal the surfacing from water as well as provide a thin cushion over the finished surface which will produce a smooth riding surface. After the wet rolling of the surface is done until there is no movement of the stones, the stones all well assembled and their interlocking complete, the surface shall be tested with a 3m (10 feet) straight edge laid parallel to the centre line of the road and any irregularity exceeding 12.5mm (one-one- hald inch) shall be corrected by loosening the surface and recompacting the same after adding or removing materials as required. Gravel 'J; shall be spread evenly over the surface to a thickness of one-fourth the thickness of the surface course 9 or as directed by the Superintending Engineer in successive thin layers. After each thin application of gravel, the surface shall be rofusely sprinkled with water, the resulting slurry swept in with hand brooms to fill the voids properly and the surface rolled again water being applied to the wheel in order to wash down the gravel that may be slicking to them. The slurry shall be swept-up from the haunches to the crown and upgradient and no pat of the slurry shall be allowed to dlow up the road surface as this will result in the loss of soil fines, which impart binding properties to the gravel. The spreading of gravel binder sprinkling of water, sweeping with brooms and rolling shall continue until the slurry that is formed after filling all voids, will form a wave before the wheels of the moving roller. The rolling at all times shall begin at the sides arid progress towards the centre, thoroughly covering the entire surface with the rear wheel till a hard smooth solid paving is produced.