Research Of Bengbu Floodgate Concrete Crack Control

As the main bearing structure in the modern construction projects, especially in water conservancy and hydropower, road - bridge projects and the construction of high-rise buildings, large volume of concrete is the key to judge the quality of buildings. Just because of this, large volume of concrete is always the direction for engineering designers and construction organizers to explore constantly along with the rapid socio-economic development.Papers sets in the Bengbu floodgate expansion project as the background, which discussing stage of cement hydration heat generated colloid, concrete pouring and curing early. hydration heat of formation of a complex temperature field in the curing process of the release of the heat of hydration will have a greater temperature change and contraction. And the resulting stress and temperature shrinkage stress, resulting in cracks in concrete, because of this non-load cracking, the structure of load impact on performance and safety.Mass concrete structure in the construction process, internal and external temperature changes more concrete in a process of condensation temperature stress, resulting in concrete or cracks formed on the surface, analyze and study the formation and development of cracks in the mechanism of control and outside temperature changes of the large volume design and construction of concrete structures in the key. We must master the mass concrete cracks and the mechanical properties of the formation mechanism of the implementation of temperature and crack control measures in order to effectively prevent the formation of cracks.Mass concrete application environment and the diversity of its cement concrete system of the complexity of large volume of concrete cracking problems exist in large quantities, mass concrete temperature changes brought about by the project, to address the technical aspects of the construction must be in the process of construction control, so in the Bengbu floodgate mass concrete pier construction. Designing pier temperature measurement devices, measuring and recording in different parts of the concrete, the measuring points of temperature changes, control large parts of the mass concrete temperature changes, and to satisfy the design requirements.Along with scientific and technological development, as well as the use of new technologies and new materials, many of the problems in this area have had great solution. But the reality not only demands us to continue the studies of concrete cracking mechanism, cracks development and evaluation research, but also ask us to learn concrete construction application of new technologies. so this expansion project through the floodgate of Bengbu, a large volume of concrete work to be dealt in the conventional analysis of this construct services.