bulking of sand doctorsand.com
When water is added to sand, by the absorption effect, a thin film of water is formed around the sand particles. The film exerts surface tension on particles making them move apart. This leads to increase in volume because there is no direct contact between particles.
For a moisture content percentage of 5 to 8 there will be an increase in volume up to 20 to 40 percent depending upon the sand quality. If the sand is finer there will be greater increase in volume. This is known as bulking of sand.
Report Story