Hydroxypropyl Methylcellulose (HPMC) has emerged as an indispensable additive in modern construction materials, particularly dry-mix cement mortar formulations. As a non-ionic water-soluble cellulose ether derived from natural polymer materials, HPMC serves multiple functional roles including water retention, thickening, and workability modification. Incorporating appropriate dosages of HPMC transforms conventional cementitious matrices into high-performance mortars tailored for […]