随着生产技术和施工工艺的进步,强度等级为LC60以上的轻骨料混凝土制备技术逐步成熟,采用四种不同堆积密度的碎石和圆球型膨胀页岩陶粒,对其物理性能进行了研究,设计了21组配合比试验方案,系统分析了骨料、水胶比、纤维对其力学性能的影响,得到了强度等级为LC40、LC50、LC60的最优配合比.研究表明:碎石型陶粒为制备高强轻骨料混凝土的最优骨料,0.26的水胶比可使混凝土强度达到70 MPa,纤维起到了良好的阻裂作用.
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