Green Self-compacting Concrete Construction Research And Engineering Application

For years, the concrete is considered to be sturdy and durable. But real. Practice proved that ordinary concrete in the big air, water and general environment is not necessarily durable, And in recent years with the development of society, the world scale development projects, funding sources and energy exist tight. Integral asked questions. Actually concrete have a longer life on more occasions rather than the strength of concrete human needs, human needs concrete to reduce energy consumption, more environmentally friendly and more economical resources, more rugged and durable. However, with the intensity of civil engineering structures in recent years gradually novel and complicated, vibrators inconvenience brought about by the structural reinforcement and structural, it is difficult to vibration molding, and fire construction noise, the concrete has its own flaws, mainly:the higher, the greater the brittle; incorporation of silica fume large amount of concrete, the late strength growth decreases; big concrete autogenous shrinkage and thus deformation properties with the intensity level of increase becomes serious. Therefore an urgent need to develop and the development of a high fluidity without segregation, no bleeding, not vibrators or less vibrators automatic leveling and full template and wrapped reinforced concrete-green self-compacting concrete.Green self-compacting concrete because of its unique performance advantages of national research scholars optimistic, suitable for all types of concrete structures and construction conditions, It is considered to be the inevitable development trend in the future of the concrete one. Domestic and international status quo, the technology is not mature, the application is not widely used. Its main limitation is:fresh self-compacting concrete work is very sensitive to significant changes by the impact of fluctuations in the quality of raw materials, ingredients and the accuracy; same time and now no one unified fit than is generally recognized design methods; rather than ordinary concrete with self-compacting concrete with more than compared to the amount of cementitious material, sand ratio, there is a great difference in its performance and ordinary concrete.This article relying on the Liu pan shui cool Metropolitan Sports Center Stadium project fully green key self-compacting concrete construction technology, the proposed design project, the choice of materials requirements of self-compacting concrete pouring and conservation of key technologies, the new technologies on construction of similar projects have a good reference and a wide range of application value.