Seamless construction process for super-large-area concrete ground

Abstract

The embodiment of the invention discloses a seamless construction technology for an ultra-large-area concrete ground, and belongs to the technical field of concrete construction technologies, cement, sand, stones, a concrete admixture and fly ash are included, no expansion joint or post-cast strip is reserved in seamless construction of the concrete ground, concrete is poured in a whole structure plane in a comprehensive layered mode, and the concrete is poured in a layered mode. And it is guaranteed that when the second layer is poured back after the first layer is poured, concrete poured on the first layer is not initially set, the operation is conducted layer by layer till pouring is finished, construction is conducted along the short edge and along the long edge, the construction is divided into two sections when necessary, the operation is conducted from the middle to the two ends or from the two ends to the middle at the same time, and the pouring thickness is not larger than 50 cm. The problem that due to the fact that the concrete is large in contractility, poor in ultimate tensile capacity and uneven in pouring face, the concrete is prone to cracking after being poured is solved. The method has the advantages that the concrete construction process is more rigorous and scientific, the problems of cracks and ground collapse are prevented, and meanwhile, the method is more environment-friendly.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of concrete construction technology, in particular to a super-large-area seamless construction technology for concrete floors. Background technique [0002] In recent years, with the rapid development of my country's economy, buildings with super long and wide plane dimensions have been used more and more in large public buildings, industrial plants and commercial centers. In view of the integrity of the building and structure, the use function and the requirements of the construction period, most of the ground or floors of such buildings are required to have no expansion joints and post-cast belts, or the distance between expansion joints exceeds the requirements of the current regulations, that is, for such super large The area concrete ground structure presents the requirement for seamless construction. [0003] In the seamless construction of super-large-area concrete structures, t...

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Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a super-large-area seamless construction process for concrete floors to solve the problems in the prior art that cracks are easily formed after concrete pouring due to large concrete shrinkage, poor ultimate tensile capacity, and uneven pouring surface. question

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