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普通密实的混凝土是水泥、砂、碎石的混合物。这种混凝土容易流动,对模板能产生很大的液压,因而要求模板特别坚固,混凝土的一次浇灌量也受到限制。英国温比无细骨料混凝土就是没有砂和小石子的混凝土。静态空气封闭在混凝土内,能增加墙体的保温性能,并减缓水分的毛细管运动。无细骨料混凝土的最重要的一个方面是它的流体静压力低。由于碎石的均匀级配,即使从高处往下倾倒,混凝土也不致离析,因此就有可能采用大尺寸模板进行浇注。模
Normally compact concrete is a mixture of cement, sand, and gravel. This kind of concrete is easy to flow and can generate a large hydraulic pressure on the stencil. Therefore, the stencil is required to be particularly strong, and the amount of concrete poured once is also limited. British Winbiless aggregate concrete is concrete without sand and pebbles. Static air is enclosed in the concrete, which can increase the insulation performance of the wall and slow the capillary movement of the water. One of the most important aspects of fine aggregate concrete is its low hydrostatic pressure. Due to the uniform grading of the gravel, even if it is poured down from a height, the concrete will not segregate, so it is possible to use a large template for pouring. mold