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. 512 Engineer. The contractor shall provide at their own expense all moulds, tamplates, centres, scaffolding etc. as may be required for the proper execution of the work and nothing extra will be paid for the same. The mortar used should be stiff. The brick work shall be kept wet while the work is in progress for atleast seven days after completion, to the entire satisfaction of the Engineer. On Sundays and Holidays, when the work is not in progress, the masonry shall be watered continuously by engaging Bhisties. Watering shall be done carefully so as not to wash out mortar of the joints. The Engineer shall be at liberty to engage labours at contractor’s cost to water the work, should the Contractors fail to do so. Should the mortar perish i.e. become dry, while or powdery, through neglect in watering, the work shall be pulled down and rebuilt at contractor’s cost. The whole of the masonry work shall be carried up at one uniform level throughout but where breaks are unavoidable, the joint shall be made in good long steps, raked so as to prevent cracks arising due to separation of old and new work. All junctions of walls shall be formed at the time the walls are being built and cross walls shall be carefully bonded into the main walls. When new work is to be added to existing structing, the old work must be prepared to receive new work by roughening and grouting with a layer of rich mortar and both be carefully bonded together. During the rains the works to be carefully covered without extra charge so as to avoid mortar being washed away.
CIDCO OF MAHARASHTRA LTD C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 513 d) Colouring of Brick For colouring bricks, an earthern-ware box shall be provided a few cm longer each way than a common brick, and half filled with the liquid of the required description to about the consistency of thick crean. The brick to be coloured shall be laid on the iron-plate with a fire underneath and heated to a heat not too great to admit of their being handled. They are to be taken out one at a time and dipped into the liquid for a few seconds, and then placed on a table to dry (which they do in a few minutes). When dry, they are to be lightly washed in cold water and placed aside to dry agains. The material for the colouring liquid shall be linseed oil, turpentine and litharage with the proper colouring matter unless otherwise specified. Where yellow bricks are required, either Naosari yellow bricks or fire bricks of uniform colour shall be used. e) Cement Plaster to Brick Work Cement plaster shall be provided to brick masonry or rubble masonry wherever directed by the Engineer. 1. Materials i) Cement ii) Sand Cement shall conform to the specifications detailed in Clause No.88 Sand shall be conform to the specifications detailed in Clause No.88
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particular specifications (road works) - CIDCO Maharashtra Ltd.

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