Why Should Hydroxypropyl Methylcellulose be Added to Mortar?

HPMC is an important additive in mortar because of its excellent performance, which can improve the construction performance, pumping and spraying performance of mortar. The main performance is as follows:

1) Hydroxypropyl methylcellulose ether has excellent water retention performance, and is widely used in various mortar, including masonry mortar, plastering mortar and ground leveling mortar, so as to improve the bleeding of mortar.
2) Hydroxypropyl methylcellulose ether has remarkable thickening effect, improves the construction performance and ease of mortar, changes the fluidity of products, achieves the desired appearance effect, improves the fullness and volume of mortar.
3) Hydroxypropyl methylcellulose ether can improve the cohesion and operability of mortar, overcome the common problems of shell lifting and hollowing of ordinary mortar, reduce the falling material, save materials and reduce cost.
4) Hydroxypropyl methylcellulose ether has a certain retarding effect, which can ensure the workable time of mortar, improve the plasticity and construction effect of mortar.
5) Hydroxypropyl methylcellulose ether can introduce appropriate amount of bubbles, which can greatly improve the frost resistance of mortar and improve the durability of mortar.

6) Hydroxypropyl methylcellulose ether is a kind of material which can keep water and thicken by combining physical and chemical actions. It can produce the material which causes the micro expansion property in the hydration process, so the mortar has a certain micro expansion property, prevents the mortar from cracking caused by shrinkage in the later hydration process, and improves the service life of the building.