Discussion :: Building Materials - Section 3 (Q.No.25)
| Santosh Burale said: (Dec 20, 2016) | |
| Increase in volume due to surface moisture. | |
| Dipen Tilva said: (Jan 11, 2017) | |
| These films of moisture exert a force, known as surface tension, on each particle. Due to this surface tension, each particle gets away from each other. Because of this no direct contact is possible among individual particles and this causes bulking of the volume. So, A is the correct answer. |
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