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. 498 the Contractors shall take immediate steps to carry out remedial measured as may be directed by the Engineer in respect in respect of such works entirely at the risk and cost of the contractors. Failure of a sample in test may entail partial or whole demolition of such work, heavy penalties, black- listing of the contractors concerned and/or such other similar steps. The results of the tests conducted by CIDCO laboratory shall be taken as final and binding on the contractors. In case of any disputes, the decision of the Chief Engineer shall be binding on the contractors. A record showing the location of test specimen and daily progress of the work done shall be maintained by the Engineer in charge and shall be countersigned by the Contractors or their representatives. In case record maintained by the Engineer in charge is not signed by the Contractors or their representative the record kept by the Engineer shall be considered as correct and binding on the contractors. In case of any dispute the decision of the Chief Engineer shall be binding on the contractors. The CIDCO Material Testing Laboratory is at present situated at Sanpada. The Contractors shall deliver the specimen for testing at this laboratory at their own cost in their own moulds. The contractors shall pay usual testing fees for the tests carried out in the Corporation laboratory. This fees may vary from year to year, as sanctioned by the competent authority.
CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 499 b) Consistency-Slump Test The workability of concrete shall be checked at frequent intervals. The slump test shall be carried out in accordance with the standard method given under the I.S. specifications mentioned above. The slump shall be as small as practicable, consistent with the efficient working and compacting of concrete. The slump shall not exceed 64mm, but the Engineer may, under exceptional conditions permit greater slump upto a limit of 150mm. The standard consistency test shall be applied every time at each mixture when test cubes are taken for the works compressive strength test. c) Moisture Contents in the aggregates The moisture contents in the aggregate shall be determined in the field in accordance with the latest I.S.No.2386 (part-III) Method of Test for aggregates for concrete. d) Unit weight of concrete It shall be determined by passing placing representative samples of concrete in unit measure capacity and vibrating it externally by small vibrator or hand compacting to represent actual placing condition. The top of the concrete shall then be made truly flush with the top of the mole and the weight of the concrete per cu.m. determined after curing and drying. The weight of dry concrete shall be between 2400 to 2625 kg./cu.m.
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particular specifications (road works) - CIDCO Maharashtra Ltd.

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