Dry-mixing plastering mortar

Abstract

The invention discloses dry-mixing plastering mortar which consists of the following components in parts by weight: 120 parts of cement, 8 parts of thickening powder, 72 parts of stone flour and 800 parts of machine-made sand. Due to adoption of plastering slurry prepared from the machine-made sand, the dry-mixing plastering mortar is stable in fineness modus, the fineness modus can be randomly adjusted according to construction parts and manual operation hand feelings, the situation of supply shortage of natural sand can be effectively solved, waste tailings can be effectively utilized, phenomena of hollowing and cracking of walls can be greatly reduced, mud contents can be reduced, no mud blocks can be resulted, drying is avoided, a small water amount is achieved, and the cost can be reduced.

Description

Technical field: [0001] The invention relates to the field of mortar, in particular to a dry-mixed plastering mortar. Background technique: [0002] The existing plastering mortar usually uses natural sand and fly ash as aggregates, but the fineness modulus and gradation of natural sand fluctuate greatly, and the natural sand contains mud content, which affects the firmness, and the wet sand needs to be dried , the cost is high; and the plastering mortar used for natural sand has some hollowing and cracking phenomenon, and the drying temperature of natural sand is between 75-85 °C, the temperature of the mortar is high during the continuous shipment, and in the process of bulk truck feeding The higher the temperature, the greater the water demand for the mortar. Another point is that natural sand is prohibited from being mined due to rivers and rivers, resulting in a shortage of resources. Invention content: [0003] The technical problem to be solved by the present inven...

AI Technical Summary

Problems solved by technology

[0002] The existing plastering mortar usually uses natural sand and fly ash as aggregates, but the fineness modulus and gradation of natural sand fluctuate greatly, and the natural sand contains mud content, which affects the firmness, and the wet sand needs to be dried , the cost is high; and the plastering mortar used for natural sand has some hollowing and cracking phenomenon, and the drying temperature of natural sand is between 75-85 °C, the temperature of the mortar is high during the continuous shipment, and in the process of bulk truck feeding The higher the temperature, the greater the water demand for the mortar. Another point is that natural sand is prohibited from being mined due to rivers, resulting in shortage of resources.