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. 346 hammers or wooden mallets to ensure tightly packed layers. Such wedging shall be carried on simultaneously with the placing in position of the larger stones in each layer and shall in no case be permitted to fall behind. Each layer shall be packed and completed before the upper layer is started. Backfilling required to be done if any, on the river-side of the abutment, wings or returns shall be done simultaneously with the filling on the landside. Special precautions should also be taken to prevent wedging action against masonry. The masonry shall have been fully cured before rubble filling. 4.3 Item to Include: 1) Supplying broken rubble and spalls of approved quality and size. 2) All labour, materials and use of equipment and tools for properly laying, hand packing and compacting the rubble. 3) Any other incidental charges to complete the work as per sanctioned plan including dewatering unless separately provided in the tender. 4.4 Mode of measurement and payment: Rubble filling shall be measured in cubic metre limiting the dimensions to those shown in the plan or as directed by the Engineer. The dimensions shall be measured to two places of decimals in metres and quantities worked out to two places of decimals of a cubic metre. No deduction shall be made for voids. The contract rate shall be for a unit of one cubic metre.
CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 347 5.0 CONCRETE – PLAIN AND REINFORCED LIST OF BUERAU OF 5.1 CEMENT : INDIAN STANDARD CODE OF PRACTICE (ISI) 12269-53 grade ordinary Portland cement 8112-43 grade ordinary Portland cement 269-33 grade ordinary Portland cement 383- Coarse and fine aggregates from natural source for concrete 456- Code of practice for plain and reinforced concrete 516- Method of tests for strength of concrete 2386- Method of test for aggregate for concrete work 9103- Admixture for concrete 4926- Specification for Ready Mix Concrete 2386- Methods of test for aggregates for concrete The cement used shall be of the following type with the prior approval of the Engineer : Type of Cements I.S. No. Remarks O.P.C. 53 Grade IS: 12269 For all RCC & PCC works O.P.C. 43 Grade IS: 8112 For all RCC & PCC works Mineral admixture are allowed to be used in the concrete as per IS: 456-2000. USE : Cement shall be used in the order in which it is received on site. Cement in bags in bag in storage for a period more than 3 months, shall be retested before use and rejected by Engineer in charge if found unsuitable.
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particular specifications (road works) - CIDCO Maharashtra Ltd.

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