混凝土的孔隙

Concrete Pores

孔隙包括混凝土生产过程形成的各种弊病,变形、温度收缩引起的裂缝以及各种原因产生的内部裂缝;混凝土水化硬结过程形成的各种大小孔径的孔隙。混凝土的各种材料性能都与孔隙密切相关,从强度、变形、耐久性:渗透、抗冻、迁移、侵蚀等项盖没列外。可以说孔隙决定混凝土的一切。因此,了解混凝土的孔隙形成、危害、防止及减少应当是再重要不过的。

The concrete pores involve various cracks caused by deformation, temperature change and other reasons during the construction period as well as the internal cracks caused accordingly.There are some concrete pores with various pore diameters during the hydrating and hardening process of concrete.The properties of vafio^s materials may take a close relation with the existence of concrete pores,involving strength,deformation, aging assistance, penetration, freezeproof, moving and corrosion.In another way to say, the concrete pores decide the performance of concrete. Thus it is rather important to well understand the existence and hazard of concrete pores as well as the corresponding prevention method and reduction ways.