超轻EPS复合泡沫混凝土性能研究

通过向低水灰比高流动性水泥浆中掺入不同比例的泡沫和EPS颗粒,制备了一系列200 kg/m3超轻EPS复合泡沫混凝土,并测试了强度、吸水率、软化系数、干缩、导热系数等性能。结果表明,EPS颗粒的引入可以提高复合体系的强度,降低吸水率,提高软化系数,降低干缩,不会明显影响导热系数,表明EPS可作为制备超轻泡沫混凝土的优质填充料。

A series different ratios of foam and EPS particles has been added to the low water cement ratio paste with high fluidity to prepare a series of 200 kg/m3 ultra lightweight EPS foam concrete.The strength,water absorption rate,softening coefficient,drying shrinkage and thermal conductivity of the EPS foam concrete have been tested.It has been observed that the addition of EPS particles can improve the strength and softening coefficient,reduced water absorption rate and drying shrinkage,and not significantly affect the thermal conductivity of the composite system,which indicates that EPS could be used as a high-quality filler for preparing ultra lightweight foam concrete.