电石渣/矿粉泡沫轻质土性能研究

Study on the Properties of Carbide Slag/Ground Granulated Blast Furnace Slag Foam Concrete

摘要: 泡沫轻质土作为一种轻质填料，广泛应用于交通工程。为解决水泥能源消耗高，碳排放量大的问题，以电石渣/矿粉胶凝材料取代水泥制备泡沫轻质土。研究了电石渣/矿粉泡沫轻质土的抗压强度、弯拉强度、抗冻融性能以及水化产物。结果表明：电石渣/矿粉泡沫轻质土抗压强度满足工程需要，且高于水泥泡沫轻质土；各湿密度电石渣/矿粉泡沫轻质土在30次冻融循环内强度损失均小于25%，质量损失均小于5%，抗冻融性能良好。

Abstract: Foam concrete is widely used in transportation engineering as a light weight filler. To solve the problems of high energy consumption and carbon emission of cement, Carbide Slag/Ground Granulated Blast Furnace Slag cementitious material was used to replace cement to prepare foam concrete. The compressive strength, flexural tensile strength, freeze-thaw resistance and hydration products of Carbide Slag/Ground Granulated Blast Furnace Slag foam concrete were studied. It is found that the compressive strength of Carbide Slag/Ground Granulated Blast Furnace Slag foam concrete meets the engineering needs and is higher than that of cement foam concrete; the strength loss of Carbide Slag/Ground Granulated Blast Furnace Slag foam concrete is less than 25% and the mass loss is less than 5% in 30 freeze-thaw cycles for each wet density, and the freeze- thaw resistance is good.