Hydroxypropylmethylcellulose (HPMC) is commonly used as an additive in cement mortar to improve its properties. HPMC acts as a water retention agent, which helps the mortar to maintain its consistency and workability for longer periods of time. It also enhances the adhesion between the mortar and other surfaces, such as bricks or tiles.
In addition, HPMC can improve the durability of cement mortar by reducing the formation of cracks and improving its resistance to water absorption. HPMC can also improve the flexibility of the mortar, which allows it to better withstand stresses caused by thermal expansion and contraction.
Overall, HPMC is a widely used additive in the construction industry and has many benefits when added to cement mortar. Its ability to improve the workability, adhesion, durability, and flexibility of cement mortar make it an essential component in many construction projects.
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