发布时间:2025-01-18 11:03:07
是的,水泥过多确实容易龟裂。如果水泥的掺入量稍微大些强度肯定是会好点,但有个度的问题。混凝土配比中水泥量过大的话会使混凝容易产生龟裂,反而使强度下降。另外会影响水灰比,流动度低,从而使得致密性大大下降,强度也不会高。
需要一床厚厚的大棉被 最好是传统样式的 被面是丝绸软缎的那种 新旧不限7成新以上 干净卫生就可
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