SAND:
1. Sand used for construction should be well graded
2. It should be free from injurious amounts of silt (not
exceeding 8%) If there is excessive silt the sand shall be washed before use
3. It should be free from organic and chemical impurities
and salt
4. As far as possible river sand or pit sand shall be used
5. Crushed sand may be used in combination with river sand
if approved by the Structural designer
6. Sea sand should not be used
7. If the sand is moist it should be tested for bulking
If bulking is detected, additional sand shall
be added to the mix to compensate for the increase in volume due to bulking.
Also the water cement ratio for the mix should be adjusted for the moisture
present in the sand.
8. For plaster work the sand shall be sieved before use
Thanks for the information. Natural or River sand are weathered and worn out particles of rocks and are of various grades or sizes depending upon the amount of wearing. Now-a-days good sand is not readily available, it is transported from a long distance. Those resources are also exhausting very rapidly. River Sand Price | M-Sand Price
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