Write short note on or Explain:Concrete

1.	Write short note on or Explain:Concrete
Answer» 1. Concrete is prepared by mixing cement, water, sand and gravel. 2. For making a strong and leak proof slab certain substances are mixed in concrete. 3. Now a days, roads are made of concrete because they are very durable, strong and smooth.

Answer»

1. Concrete is prepared by mixing cement, water, sand and gravel.

2. For making a strong and leak proof slab certain substances are mixed in concrete.

3. Now a days, roads are made of concrete because they are very durable, strong and smooth.

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