外文翻译--商品混凝土质量控制(编辑修改稿)

外文翻译--商品混凝土质量控制(编辑修改稿)内容摘要：

concrete variety, it should include a large liquidity concrete, flow concrete, pumping concrete, high strength concrete, mass concrete, antiseepage anticrack concrete and high performance concrete. Therefore, mercial concrete is a bination of modern concrete and modern construction technology， its popularity can represent a country or a region of concrete construction level and modernization degree. 2 The characteristics of the mercial concrete The generation of mercial concrete and building materials, in particular, a revolution in the history of the development of concrete, is a sign of concrete industry towards modernization and scientific. Compared with the traditional concrete, concrete products with unique advantages: (1) the production process strictly implement national and industry standards, 4 raw materials used are relatively stable, (2) can save quantity, enlarge the effective use of building space. (3) can greatly shorten the construction period, improve the construction speed. The use of mercial concrete construction unit, construction speed, reduce the turnover rental expenses such as equipment, pipe rack template。 Owners can shorten the construction period, reduce the investment risk. (4) pumping construction, highrise, distance can be within the scope of operation, improve efficiency, reduce labor intensity, the lower the quality of construction management fees, technical difficulty and risk。 And makes mass concrete implement continuous and seamless construction possible. (5) the pr。