论文部分内容阅读
由于水泥净浆热处理后得到的活化水泥浆的胶凝性能与普通硅酸盐水泥的胶凝性能相差甚远,为了改善其胶凝性能,实验使用一定量的石膏和粉煤灰作为改性剂,对活化水泥浆进行改性处理,研究了改性后活化水泥浆的胶凝性能,包括凝结时间、标准稠度需水量和抗压强度,并通过XRD和SEM的微观分析对活化水泥浆的再水化过程进行了分析。试验表明:石膏和粉煤灰组成改性剂能延长活化水泥浆的初凝时间,增强其抗压强度,但不能减少活化水泥浆的标准稠度需水量。
As the cement paste obtained after the heat treatment of activated cement gel cementing properties of ordinary Portland cement far behind, in order to improve the gelation performance, the experiment using a certain amount of gypsum and fly ash as a modifier , The modified cement slurry was modified to study the gelation properties of the modified activated cement slurry, including the setting time, the standard consistency of water demand and compressive strength, and the XRD and SEM microscopic analysis of activated water slurry Hydration process was analyzed. Experiments show that gypsum and fly ash modifier can prolong the initial setting time of activated water slurry and enhance its compressive strength, but can not reduce the standard consistency of activated water slurry.