In this paper, the deformation, microcrack initiation and propagation of pumice-aggregate foamed concrete, morta, pumice-aggregate and interfacial ring in the concrete are studied under monoaxial compressive stress. 本文对单轴压应力下浮石泡沫混凝土及混凝土中浮石粗集料、砂浆、界面过渡层的变形和微裂纹的产生和扩展进行了试验研究。
Low strength pile is the plain concrete pile, including cement mixing pile; cement morta pile; high-pressure rotary jet grouting pile; CFG pile etc., which strength is lower then reinforced concrete pile. 低强度桩包括水泥搅拌桩、水泥砂浆桩、高压旋喷桩、CFG桩等强度比钢筋混凝土桩低的多的素混凝土类桩。
The slag can improve the workability of the morta, and also enhance strength and softness coefficient, increase thermal conductivity. 炉渣的掺入改善了砂浆的和易性,提高了砂浆的强度和软化系数,增大了砂浆的导热系数。