What is the formula for total evaporable moisture loss?

The formula for total evaporable moisture loss is determined by comparing the mass of the original sample with the mass of the sample after drying. In this context, the correct formula helps to quantify the percentage of moisture lost due to evaporation during the drying process.

The selected formula takes the mass of the original sample and subtracts the mass of the dried sample, which represents the moisture that has been lost. Dividing this value by the mass of the original sample gives a proportionate measure of how much moisture was present compared to the total weight of the sample prior to drying. Since the result is then multiplied by 100, it converts this proportion into a percentage, allowing for an easy understanding of the moisture loss in relation to the initial sample size.

This method ensures accurate representation of the moisture loss as it factors in the initial weight, providing context for the amount of water that was present before evaporation occurred. By correctly utilizing this formula, one can gain valuable insights into the moisture content of materials, which is essential for various construction applications, including assessing material quality and influencing mix designs.