Abstract:In recent years, the construction volume of major water projects in this city is large and under tight schedule. However, there are still some quality problems in the thin-walled concrete structures, such as leakage, surface voids and pits, and obvious color difference. In order to better implement the high quality development requirements of water engineering, common quality problems of thin-walled concrete are summarized in this paper by thorough investigation of typical water supply and drainage plants, and the causes of these problems are also analyzed, and some on-site quality technical controlling measures and are proposed in the end.