其次，进行了陶粒粉煤灰混凝土、粘性土、风积砂、砂砾和石灰土等几种材料的台背回填离心模型试验。

Secondly, models with different backfill-material such as argil fly-ash concrete, soil, sand, grit and lime-stabilized soil were experimented.

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结果表明，用粉煤灰陶粒所配制的轻集料混凝土强度较高，干表现密度和热性能均能满足设计要求，而且更经济。

Study results show that sintered fly ash aggregate concrete is relatively high in strength and more economical in use, and its dry density and thermal properties can meet design requirements.

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利用磨细粉煤灰、磨细矿渣和硅灰作为矿物掺合料，研究了各种矿物掺合料对粉煤灰陶粒混凝土抗压强度的影响。

This paper studys the influence of the mineral admixtures such as ultra-fine fly ash, ultra-fine slag and silica fume on compressive strength of lytag concrete.

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