particular specifications (road works) - CIDCO Maharashtra Ltd.

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CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 518 55.0 Providing Lowering, Laying and Jointing RCC, pipe of NP-2/NP-3 class (spigot/socketed) of various diameter with rubber ring and cement mortar 1:3 in proper line, level and slope including curing etc. complete. 55.1 GENERAL : The item provides for the supply and fixing of the spun concrete pipes of the specified class and diameter in position for the Cross Drainage works including necessary collars, conveyance and fixing in cement mortar 1:2. 55.2 MATERIALS : Concrete pipes shall be of the class and diameter mentioned in the item and shall comply with I.S. 458-1971. The collars shall be of the appropriate size for fixing of the concrete pipes specified on the drawing and shall comply with the I.S. 458- 1971. 55.3 FIXING : The cement mortar shall comply with the specification No.B.5(a), proportion of cement to sand being 1:2. The handling and laying of the concrete pipes shall comply with I.S. 783-1985 code of practice of laying concrete pipes. The pipes shall be laid to the lines and levels shown on the drawings and the slope shall be 1 in 100 towards the down stream unless other slopes are specified on the drawing or as ordered by the Engineer. The ends of the pipes shall be flush with face of masonry or bell mouthed if so indicated on the drawings or ordered by the Engineer. Pipe of non - standard length may be used when standard length
CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 519 pipes do not fit in between the face of walls. Otherwise extra length of standards pipes may be left projecting beyond face of masonry on the downstream. Such extra length will not be paid for. Diversions of the road if found necessary, shall be provided according to BR.1 at the cost of the contractor unless separately provided in the tender. The collar joints be cured satisfactorily. Till then the filling around shall not be done. 55.4 ITEM TO INCLUDE : 1) Supply, conveyance and fixing of the spun concrete pipes including collars, fixing in cement mortar 1:2 to the line, levels and slope. 2) All labour materials, use of equipment and tools for completing the item satisfactorily. 55.5 MODE OF MEASUREMENT & PAYMENT : The measurement shall be for the length of pipes provided and fixed with collars from the outside of one face wall to the outside of the other face wall, limiting the length to that specified in the plan, or ordered by the Engineer. The length shall be measured correct up to a centimeter. The rate shall be inclusive of all the projecting lengths. If any, projections being ignored in the measurements.
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particular specifications (road works) - CIDCO Maharashtra Ltd.

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