Plastering mortar formulations

1, traditional cement mortar formula: for general plastering of internal walls, the ratio of cement to sand in plastering mortar is usually between 1 to 3 and 1 to 2.5, for example: M5 strength grade cement mortar: each cubic meter of mortar contains about 325 cement 236 kg, medium coarse sand 1.11 m3. M7.5 strength grade cement mortar: each cubic meter of mortar contains 325 cement 236 kg, medium coarse sand 1.11 m3. For example: M5 strength grade cement mortar: each cubic meter of mortar contains about 236 kg of 325 cement and 1.11 cubic meters of medium-coarse sand; M7.5 strength grade cement mortar: each cubic meter of mortar contains 292 kg of 325 cement and 1.09 cubic meters of medium-coarse sand.

2, special functional plastering mortar formulations: there are some special plastering mortar will be added to other additives to enhance its performance, such as: adding wood fibers to improve the mortar's resistance to cracking and impact resistance, the amount of additive is generally within 0.5 percent of the total mass. Add glue powder, cellulose ether, methyl cellulose ether and other polymer materials to improve the work of mortar, water retention and adhesion.