Advantages of mortar admixture hydroxypropyl methylcellulose

Advantages of mortar admixture hydroxypropyl methylcellulose

At present, the main additives of mortar are as follows:

1. Thickening powder: Thickening powder is a kind of mortar modifier, and its performance in all aspects is still acceptable. The proportion of thickening powder with relatively cheap transportation cost relative to unit price will be very large, which makes its widespread promotion encounter a bottleneck.

2. Mortar King: Mortar King is actually a kind of air-entraining agent whose main component is sodium lauryl sulfonate, etc., which only has air-entraining function in mortar. It is still far from replacing lime paste in the true sense, and it is harmful to the quality of the project. Air-entraining will inevitably lead to a decrease in the strength of the mortar, and the lack of water retention also makes the appearance of empty valley cracking more common.

3. Bentonite: No matter what kind of bentonite, its water retention and improvement of workability are good, but its fatal weakness is that the dry shrinkage is relatively large, which deforms in the same direction for the dry shrinkage of cement, strengthens each other, and is more prone to cracking.

     Therefore, hydroxypropyl methylcellulose has many advantages and has a lot of room for development in the building materials market.