粘土-水泥复合材料的制备和力学性能

采用含有石英和长石成分的粘土，制备了粘土和水泥（5 wt%、7 wt%、9wt%）的新型复合材料。研究了其阿太堡界限、击实密度和最佳含水量、无侧限抗压强度(UCS)和水渗透系数。结果表明，含5 wt %水泥的复合材料被认为最适合某些建筑材料的应用，塑性指数为10.5%，最大干密度2.17 g/cm3和MP压实的最佳含水量为8% (浸润下没有发生膨胀)，UCS为0.74 MPa，渗透系数低至7.4×10-11m/s。该复合材料可应用于建筑砖块、路基和路基施工。

Preparation and mechanical properties of clay-cement composites

Hard chlorite clay containing illite and interbedded illite was applied to form hard chlorite clay- cement composite (5 wt%, 7 wt%, 9wt%). On which, Atterberg limits, modified proctor compressive dry density and optimum water content, UCS and water penetration rate were studied. Results show that the composite with 5% cement was the most suitable for some construction application; plastic index was 10.5%, maximum dry density was 2.17 Mg/m3 and optimum water content was 8% under MP compression (socked without expansion), UCS was 0.74 MPa, penetration rate was as low as 7.4×10-11m/s. The composite material can be used in building bricks, subgrade and subgrade construction.