中文摘要：

以内蒙古东部地区的天然浮石为粗骨料，通过混凝土抗渗试验、碳化试验、抗氯离子渗透试验以及抗压强度的测试，研究了粉煤灰对轻骨料混凝土耐久性的影响。结果表明，粉煤灰使轻骨料混凝土的早期抗压强度、抗碳化能力有所下降，但能有效改善轻骨料混凝土的抗渗性能和抗氯离子渗透能力。

英文摘要：

The influence of fly ash on durability of lightweight aggregate concrete is studied using natural pumice from the eastern Inner Mongolia as coarse aggregate by tests of impermeability, carbonization,resistance to filtration of chloride ion and compressive strength. The result indicates that fly ash can make the early compressive strength and carbonization resistance of lightweight aggregate concrete somewhat reduce,but it can effectively improve the impermeability and resistance to filtration of chloride ion of lightweight aggregate concrete.