水泥砼是水利工程及城市建设应用广泛、用量极大的建筑材料，它由水泥、石子、砂、水按一定的配合比搅拌而成。施工过程中，在确保砼质量的前提下，如何能使各项材料的配合经济，减少水泥用量，是一个非常值得探讨的问题。浇捣砼，工地上传统的方法是一次投料法，即将砼拌... Cement concrete is a building material widely used in water conservancy projects and urban construction. It is made up of cement, gravel, sand and water with a certain mixture ratio. In the process of construction, under the premise of ensuring the quality of concrete, how to make all the materials fit the economy and reduce the amount of cement is a problem worth exploring. Pour concrete, the traditional method of the site is a feed method, about concrete ...