Construction mortar is a functional material that usually forms a whole with the matrix. For example, masonry mortar bonds bricks, blocks and other blocks into a whole to bear the load together; plastering mortar is applied on In addition to obtaining a smooth surface, the surface of the base layer also requires the mortar to have good water retention, adhesion, etc. Some mortars must also meet the requirements of crack resistance, freeze-thaw resistance, impermeability, impact resistance, waterproofing, high temperature resistance, and heat preservation. Heat insulation and other requirements.
In order to meet these performance requirements, in addition to ordinary raw materials such as cementitious materials, fine aggregates, and mineral admixtures, mortar is usually mixed with some special materials, such as water-retaining thickening materials, Tackifying materials, additives, fibers, pigments, etc. Mortar components can range from four or five to more than a dozen, making the composition of mortar more complex and diverse.
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