Evaluation of water-repellent properties of cements according to wettability method

Methods of cement water-repellent properties are evaluated, advantages and disadvantages of their utilization are described. Evaluation of cement water-repellent properties according to methods of contact angle and wettability is proposed. Benefits and drawbacks of methods and guidelines of their utilization are given. The method of contact angle should be used if the cement is treated with water-repellent admixtures. The method of wettability should be used if the cement is treated with waterproofing admixtures. Both methods make possible to determine effective concentrations and compare different admixtures.