辅助凝胶材料对硫铝酸盐水泥性能影响研究

摘要

研究普通硅酸盐水泥、石膏及石灰掺入硫铝酸盐水泥中后对其凝结时间和强度的影响。研究表明：普通硅酸盐水泥掺量增大使得硫铝酸盐水泥凝结时间缩短，强度下降；石灰和石膏的掺入对硫铝酸盐水泥水化有一定的促进作用，且适当的比例对硫铝酸盐水泥的后期强度无不利影响。普通硅酸盐水泥、石灰和石膏的混掺对硫铝酸盐水泥的影响大小则与其掺量的多少有关。%The setting time and strength of sulphate aluminium cement admixed with Portland cement, gypsum and lime were studied. The result indicated that the setting time shortened and the strength declined with Portland cement content increasing. Lime and gypsum could promote hydration of sulphate aluminium cement, and they would be not unfavorable to late strength of sulphate aluminium if there was an appropriate proportion. The performance of sulphate aluminium cement was relevant to their mixing content.