论文部分内容阅读
在混凝土中掺外加剂是改善、提高混凝土性能和节约能源的有效途径。一些工业发达国家,如北欧各国,日本、美国、西德、苏联等国家有50%以上的水泥掺加外加剂。外加剂几乎成了配制混凝土的第五组份。我国当前仅有10%左右的混凝土掺外加剂,与先进国家相比,差距较大,其中水泥制品中使用外加剂更少,因此必须加强外加剂的开发应用技术,以提高水泥制品的技术经济效益。根据今年10月中旬在安徽省黄山市审定的
Adulteration admixture in concrete is an effective way to improve and enhance concrete performance and save energy. Some industrialized countries such as Nordic countries, Japan, the United States, West Germany, the Soviet Union and other countries have more than 50% of cement admixture. Admixture has almost become the fifth component of the preparation of concrete. Currently, only about 10% of concrete admixtures in our country have a big gap compared with advanced countries, among which cement admixtures are used less, so we must strengthen the application and development of admixture to improve the technical economy of cement products benefit. According to Huangshan City, Anhui Province in mid-October this year, the validation