中文摘要：

对比研究了在水灰比和水泥用量不变的情况下，4种不同含气量的浮石轻骨料混凝土的抗压强度、劈裂抗拉强度和抗折强度。结果表明：随着含气量的增加，轻骨料混凝土抗压强度在逐渐减小，而且比普通混凝土减小得速度要快。而对于劈裂抗拉强度和抗折强度而言，随含气量的增加，强度先增加后减小。通过分析，得出浮石轻骨料混凝土的最佳含气量值为5．5％，从而为引气剂在浮石轻集料混凝土中的应用提供试验依据。

英文摘要：

The experiment focused on compressive strength, split tensile strength, flexural strength of pumice lightweight aggregate concrete of four types air content in the same water-cement ratio and dosage of cement.The results show that compressive strength of lightweight aggregate concrete decreases with the increase of air content,and the rate decrease faster than ordinary concrete.To split tensile strength and flexural strength, with the increasing of air content, strength increase ftrstly and then decrease.The conclusion can be drawn that air content in 5.5% is best, which may serve as an experiment based on using air-entrained in pumice lightweight aggregate concrete.