Fill a sample of moist fine aggregate (sand) into a measuring cylinder in the normal manner. Note down the level, say h 1 . Pour water into a measuring cylinder and completely cover the sand with water and shake it. Since the volume of the saturated sand is the same as that of the dry sand, the saturated sand completely offsets the bulking effect. Note down the level of sand, say h 2 . Subtract the final level h2 from initial level h1 (i.e. h 1 -h 2 ), which shows the bulking of sand under test. Calculate percentage of bulking using formula given below. Percentage of bulking = [(h 1 -h 2 )/h 2 ]*100

How the bulking of sand we take in account in quantity works ,, for example we have 40 unit cub sand so and bulking is 25% at 33% of water?

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by darren pinto , Quantity Surveyor , Dimension PMC

Fill a sample of moist fine aggregate (sand) into a measuring cylinder in the normal manner. Note down the level, say h1.
Pour water into a measuring cylinder and completely cover the sand with water and shake it. Since the volume of the saturated sand is the same as that of the dry sand, the saturated sand completely offsets the bulking effect. Note down the level of sand, say h2.
Subtract the final level h2 from initial level h1 (i.e. h1-h2), which shows the bulking of sand under test.
Calculate percentage of bulking using formula given below.
Percentage of bulking = [(h1-h2)/h2]*100