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Ⅰ级粉煤灰对水泥净浆开裂的影响
Authors
余彬彬
刘冬冬
+3 more
曾韶崟
杨帆
胡红梅
Publication date
25 April 2012
Publisher
Abstract
采用环约束法,试验研究了Ⅰ级粉煤灰对不同水胶比下水泥净浆开裂的影响。试验研究发现:Ⅰ级粉煤灰在低水胶比(0.24)情况下对净浆开裂几乎没有影响,当水胶比为0.32和0.40时抗裂作用明显;较高水胶比(0.32、0.40)情况下,Ⅰ级粉煤灰对净浆的抗裂性能有较好的改善作用,在20%~65%掺量范围内,随着掺量的增大,净浆的开裂龄期延长,抗裂性能提高
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Last time updated on 16/06/2016