The role of HPMC in cement mortar

The role of HPMC in cement mortar

Many industries in our lives now use hydroxypropyl methylcellulose.,Today talk about the role in mortar:

1. The addition of HPMC has a significant retarding effect on the mortar mixture. With the increase of HPMC content, the setting time of mortar is prolonged. Under the same amount of HPMC, underwater molding mortar is better than air. Molding takes longer to set. This feature is advantageous for pumping underwater concrete.

2. The fresh cement mortar mixed with HPMC has good cohesive properties and almost no bleeding.

3. The amount of HPMC and water used for mortar show a significant increase after the first decrease.

4. The incorporation of water reducing agent improves the problem of increasing the water demand of mortar. However, the amount of mortar must be reasonably controlled. Otherwise, sometimes the underwater dispersion resistance of the newly mixed cement mortar will decrease.

5. The addition of HPMC greatly reduces the loss and dispersion of cement in the cast cement, but it also reduces the density of cement stone. In the case of ensuring underwater non-dispersive effects in the project, the number of HPMC can be minimized.

6. Using HPMC underwater non-dispersible concrete admixture, controlling the admixture dosage is beneficial to the strength. The test shows that the strength ratio of the concrete formed in water and the formed object in the air is 84.8%, and the effect is remarkable.

These are the effects of adding HPMC to cement mortar. If you want to know more about the performance of HPMC, you can contact us directly.