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氢氧化铝干凝胶改性无碱速凝剂的制备与性能研究

Xiaolei ZHANG,Lei LI,Wei WANG, Hang DU,Rui WANG,Jiangang ZHANG,Qian TIAN

New Building Materials（2018）

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Abstract
将氢氧化铝干凝胶作为改性剂加入到无碱速凝剂中,研究了改性无碱速凝剂对水泥凝结时间、抗压强度和水泥适应性的影响.结果表明,氢氧化铝干凝胶可以有效促进水泥的水化进程,当其掺量为8％时,可使基准水泥的初凝时间缩短到2 min,终凝时间3 min35 s;砂浆28 d抗压强度比达108.2％;改性后的无碱速凝剂具有良好的水泥适应性,更有利于无碱速凝剂的推广应用.
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