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Coarse Aggregate: Gravel of 3/4" max. Size. The total aggregate by weight is about 5055 %. Fine Aggregate: Sand is added about 4550% of the total weight of aggregate. Cement: ASTM (moderate heat of hydration) Type II, 600 lbs/yd3. Pozzolana: ASTM 616 Type N or F, 100 lbs/ yd3. Underwater Concrete. Water/Cement Ratio: ( Maximum).

RYAN Aggregate is a collective term for the mineral materials such as sand, gravel, and crushed stone that are used with a binding medium (such as water, bitumen, Portland cement, lime, etc.) to form compound materials (such as bituminous concrete and Portland cement concrete). By volume, aggregate generally accounts for 92 to 96 percent of ...

Jan 22, 2016 · Drawback as per rate determined and fixed by Central Excise authority shall be available for duty paid inputs, whether imported or indigenous, used 66. ELIGIBILITY Duty Free Import Authorisation shall be issued on post export basis for products for which Standard .

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c) Fine aggregate = River sand of Zone II as per IS: sand grading is given in Table 1. d) Degree of workability = 50 – 100 mm slump at pour after 90 Minutes. e) Minimum cement content = 340 kg/m 3. f) Maximum free water/cement ratio = g) Standard deviation for good site control = .