【摘要】 混凝土质量的好坏,对结构物的自身安全及其造价均有很大影响。控制混凝土的 质量应从原材料试验、配合比设计、施工、取样和养护等方面进行。更多还原

【Abstract】 The quality of the concrete influences both the safety and price of the constructions. The controlling of the quality of the concrete should be carried out from the aspects such as the test of raw materials, the design of the rate of coordination, sample-taking and maintaining.更多还原