Cement mortar, plus lime paste, is called mixed mortar. Mixed mortar is usually made of cement, lime paste and sand. It is usually used for masonry above the ground. Because of the addition of lime paste, the workability of the mortar is improved, and the operation of the mortar is more convenient, which is beneficial to the compactness and the work efficiency of the masonry.
Wall is used in cement mortar, cement mortar is composed of cement and sand mixed in certain proportion and stirring, it can be made of high strength mortar. Cement mortar is generally used in the basement, long-term immersion in the basement and withstand greater external force of masonry.
Cement and lime, is not used for walls, because of the lack of aggregate, such as coarse sand, fine sand, can inhibit the contraction of the cement, no skeleton body, can not form a strong overall hardening, so cannot be used for walls, the lack of necessary strength and cohesion.
Can not be mixed, because lime will expand when cement condenses, made into concrete, no strength or low strength, will also pack.
