掺合料对干混砂浆性能的影响

摘要

采用粉煤灰、矿粉和过火煤矸石粉以及不同复合比例的矿物掺合料与水泥作为干混砂浆胶凝材料，研究其对干混砂浆性能的影响，结果表明：粉煤灰与矿粉在适合比例下，对早期强度贡献大，经实践证明加入适量纤维素醚能大幅度提高砂浆的保水率。%Using the fly ash,slag and burned coal gangue powder and mineral admixture with different composite ratio and cement as the dry mixed mortar gelatinization materials,researched its influence to dry mixed mortar performance,the results showed that:the fly ash and slag in suitable proportion,contribution to the early strength,proved by practice,adding suitable proportion cellulose ethers could greatly improve the water retention of mortar rate.