According to common quality defects of concrete such as honeycomb,surface voids,low strength and so on their causing reasons are analyzed;at the same time corresponding prevention and treatment measures are proposed in order to ensure engineering quality of concrete.

According to the quality problems encountered in pouring process of concrete, such as pore, surface voids, honeycomb of concrete, bare bar and so on, the reasons caused those quality problems are analyzed; at the same time corresponding preventive measures are presented in order to maximally eliminate quality problems to ensure construction quality.

Combined with experiences, it analyzes causes of mass defect on concrete including honeycomb、surface voids、holes and slot interlining, prevention measures are putted forward to ensure project quality.