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Grade of concrete refers to the strength of the concrete mix design.
Grade of concrete is denoted by the ratio of cement, sand, and aggregates in the mix.
Common grades of concrete include M10, M15, M20, M25, etc.
Higher grade of concrete indicates higher strength and durability.
For example, M20 grade concrete has a mix ratio of 1:1.5:3 (cement:sand:aggregate).
IS specification refers to the Indian Standard specification for construction materials and practices.
IS specification ensures quality and safety standards in construction projects.
Examples include IS 456 for concrete, IS 3370 for timber, and IS 800 for steel structures.
Compliance with IS specifications is mandatory in India for construction projects.
IS codes cover various aspects such as design, materials, constructio
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