Hydroxypropyl methyl cellulose in machine spray mortar

With the wide use of mortar, the quality and stability of mortar can be well guaranteed. However, since the dry-mixed mortar is directly processed and produced by the factory, the price will be higher in terms of raw materials. If we continue to use manual plastering on site, it will not be competitive, plus There are many first-tier cities in the world where there is a shortage of migrant workers. This situation directly reflects the increasing labor costs of construction, so it also promotes the combination of mechanized construction and dry-mixed mortar. Today, let’s talk about hydroxypropyl methylcellulose HPMC in Some applications of machine spray mortar.

Let’s talk about the whole construction process of machine spray mortar: mixing, pumping and spraying. First of all, we need to ensure that on the basis of reasonable formula and raw material clearance, the compound additive of machine-blasted mortar mainly plays the role of optimizing the quality of mortar, which is mainly to improve the pumping performance of mortar. Therefore, under normal circumstances, the composite additives for machine-spraying mortar are composed of water-retaining agent and pumping agent. The hydroxypropyl methylcellulose can not only increase the viscosity of the mortar, but also improve the fluidity of the mortar, thereby reducing the occurrence of segregation and bleeding. When the workers design the compound additive for machine-blasted mortar, it is necessary to add some stabilizers in time, which is also to slow down the delamination of the mortar.

Compared with the traditional mortar mixed on site, the machine spray mortar is mainly due to the introduction of hydroxypropyl methyl cellulose ether, which plays a role in optimizing the performance of the mortar and directly promotes the efficiency of the newly mixed mortar. The water retention rate will also become higher and have good working performance. The best point is that the construction efficiency is high, the quality of the mortar after molding is good, and the occurrence of hollowing and cracking can be well reduced.