高强再生骨料混凝土的正交试验研究

通过正交试验,研究了再生骨料取代量、硅粉掺量、粉煤灰掺量和聚丙烯纤维掺量对新拌再生骨料混凝土坍落度和抗压强度的影响。研究结果表明,再生骨料取代量、硅粉和聚丙烯纤维掺量越大,粉煤灰掺量越小,新拌再生骨料混凝土的坍落度越小;再生骨料混凝土的抗压强度随着再生骨料取代量的降低、硅粉和聚丙烯纤维掺量的增加而提高,粉煤灰对抗压强度的影响很小。

Research on Orthogonal Test of High-strength Recycled Aggregate Concrete

By means of orthogonal test,researched the influences on the slump constant and pressive strength of concrete by the replacement ratio,the volume of ganister sand and mekralon,and the volume of fly ash.The result indicated that the slump constant of freshly mixed concrete decreased with the increasing of replacement ratio,ganister sand volume and mekralon volume,with the decreasing of fly ash volume;the pressive strength of concrete increased with the decreasing of replacement ratio,with the increasing of g...