Answer Posted / adeel

M20 or M200 shows 28 days compressive strength of concrete cylinder test.
*M20 is strength of 20N/mm sqr
*M200 is strength of 200kg/cm sqr
* M shows the mix rati of concrete for M20 the rati is 1: 1.5 : 3

for 200 kg of cement how is the mix proportion in kg for m25 grade of concrete

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contractor receive 100 MT steel.after compliting the work the contractor refund 90 MT steel.How reconsilation of steel done?

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225 mm thick RCC slab, how many ton load slab can carry? for example if 33 ton truck loaded with soil, truck having 6 wheels. slab can take load or not? grade of concrete is M35 and slab design Fe500, slab desing one way slab.

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