A machine-sprayed plaster

Abstract

The invention provides a mechanical spraying plastering mortar and an additive. The mechanical spraying plastering mortar comprises: by weight, cement 10%-18%, fly ash 5%-10%, sand 75%-80%, and additive 0.5%. The additive comprises, by weight, cellulose ether 0.02%, montmorillonite powder 0.01%, starch ether 0.01%, water reducing agent 0.05%, air-entraining agent 0.0035%, and wood fibre 0.1%. The product optimizes the mix ratio of the plastering mortar, and mixes a certain ratio of additive, so that the plastering mortar has sag resistance, good lubricity, water-retaining property and fluidity, and strong binding power, and the performance requirements of mechanical pumping and spraying construction of the plastering mortar is realized. And thus, labor intensity is reduced, construction efficiency is enhanced, and the construction efficiency is more than two times of that of manual plastering. The wall plastering using mechanical spraying construction has high pressure and is uniform, avoids empty drum and crack of the plaster layer, and improves the engineering quality of the additive.

Description

Technical field: [0001] The invention relates to the field of ready-mixed mortar, in particular to a machine-sprayed plastering mortar. Background technique: [0002] There are two main types of plastering mortars currently used in construction: one is the plastering mortar that is self-mixed on the construction site, which has poor measurement accuracy and unstable quality, and is likely to cause quality accidents such as empty drums and cracks; the other is the plastering mortar encouraged by national policies. The ready-mixed mortar supported by industrial production has the advantages of accurate measurement, stable quality, and environmental protection. However, the above two mortars also have a common disadvantage: the use of manual plastering is labor-intensive, low construction efficiency, and makes workers The quality of the wall caused by the quality of hidden dangers. Plastering mortar In view of the above defects, it is urgent to develop a mortar that meets the ...

AI Technical Summary

Problems solved by technology

[0002] There are two main types of plastering mortars currently used in construction: one is the plastering mortar that is self-mixed on the construction site, which has poor measurement accuracy and unstable quality, and is likely to cause quality accidents such as empty drums and cracks; the other is the plastering mortar encouraged by national policies. The ready-mixed mortar supported by industrial production has the advantages of accurate measurement, stable quality, and environmental protection. However, the above two mortars also have a common disadvantage: the use of manual plastering is labor-intensive, low construction efficiency, and makes workers Hidden dangers of wall quality caused by quality