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MHEC is an essential addition to mortar formulations used in the construction industry that improves workability, adhesion, and uniformity. Because of its capacity to increase water retention, cementitious materials are kept wet for longer periods of time, which promotes better curing and the general development of a structure's strength. Additionally, MHEC stabilizes cementitious mixes, minimizing sagging and guaranteeing even application, improving the quality of completed surfaces.
Cellulose ether has a slow setting effect on mortar. With the increase of cellulose ether content, the setting time of mortar is prolonged. The retarding effect of cellulose ether on cement slurry mainly depends on the degree of substitution of alkyl group, which is not much related to its molecular weight. The lower the degree of alkyl substitution, the higher the hydroxyl content, the more obvious the retarding effect. And the higher the content of cellulose ether, the more obvious the retarding effect of the composite film on the early hydration of cement. Therefore, the more significant the retarding effect is.