Prevention And Treatment Of Cast-in-Situs Concrete Floorslab Cracks Of High-Rise Buildings Of The Residential Quarters Of Taiyuan Binhe Small District

Along with the rapid development of high-rise buildings, the wide application ofready-mixed commodity concrete, and pumping technique, and the requirement ofshort time limit for a project, cracks in varying degrees have appeared in cast-in–sinus concrete floorslabs, which usually cause defects such as leakage, reinforcingsteel bar corrosion, and concrete carbonization. This paper stresses the importance of the analysis of causes, prevention inconstruction, and treatment of concrete in accordance with cast-in-situs concrete Thefocal point, of work in floorslab cracks centers on prevention. This paper takes thehigh-rise buildings of Taiyuan Binhe Small District for its background and focusesdiscussion on the control of design, the control of material, construction technologyand construction management by analyzing and comparing them, especially on how tocontrol reinforcing bar protective layer, and how to scientifically and rationallyarrange the time limit for a project and working procedures in turn, and theimprovement of construction technology. In addition, this paper puts stress on thediscussion about construction management, such as concrete curing, prevention ofoverloading in hoisting or lif-ting areas. And an introduction is made to concretefloorslab crak treatment measures, especially to the simple and easy-learn YJautomatic pressure grouting technique according to actual and concrete conditions ofthe construction of project.