Hydroxypropyl methylcellulose (HPMC) is typically required in all dry-powder mortar products. Its main function is to improve the mortar’s water retention, fluidity, and workability, increase the initial strength of cement mortar, and prevent cracking, especially noticeable in highly absorbent substrates and high-temperature construction. This study investigated the effects of HPMC on the flexural, compressive, and […]