浅谈混凝土施工质量控制 222（Discussion on quality control of concrete construction 222）.doc

浅谈混凝土施工质量控制 222（Discussion on quality control of concrete construction 222） Discussion on quality control of concrete construction Source: Chinese paper download center [09-11-06 14:11:00] author: xu tais editor: studa090420 [abstract] in the field of engineering construction in China, the reinforced concrete structure has an absolute proportion of the advantages of low cost, mature design theory, mature construction technology and good seismic performance. It plays an extremely important role in civil engineering such as hydraulic engineering and bridge engineering. But the proportion of concrete material quality and the quality fluctuation and concrete, pouring and maintenance construction technology has great impact on the quality of concrete, the construction process requires strict quality control. [key words] concrete; Control of raw materials; Mixing; Transport; Casting; Maintenance; Open mode; Winter concrete construction 【Abstract】In construction field in China, the reinforced concrete structure with its low cost, sophisticated design theory, construction technology is mature, the advantages of seismic performance of good possession of the absolute proportion. In the water conservancy and hydropower engineering, bridge engineering, civil engineering is playing an extremely important role. However, the quality and mix proportion of concrete materials, fluctuating as well as the quality of concrete transport, pouring, maintenance and so the quality of concrete construction technology have a greater impact of the construction process requires strict quality control. [Key words] Concrete; Raw material control; Mixing; Transport; Pouring concrete. Conservation; The Form removal; Winter concrete construction 1. Raw material control Ordinary concrete is composed of cement, water and fine aggregate, chemical admixtures and mineral mixture material, in proportion to cooperate, after even mixing, vibrating compaction molding and curing hardening of artificial stone.