Development of concrete construction technology in winter

摘要

Nearly twenty years, freezing damage prevention of concrete construction in winter, construction methods of generalized integrated heat storage, the third generation of water-reducing agent (Poly carboxylic acid sodium), the theory of critical maturation degree, composite antifreeze, the key and matching technology of concrete construction under negative temperature and so on are all emerging constantly. Development progress of winter construction technology is promoted. All kinds of technology and economic about construction methods in winter are compared in this paper. The selection basis of concrete construction methods in winter is provided for different conditions.