RESEARCH ON TEMPERATURE CRACK CONTROL OF LARGE VOLUME CONCRETE IN BUILDING FOUNDATION RAFT SLABS
The foundation raft of high-rise buildings is thick and has a large area,belonging to the category of large volume concrete structures.If not controlled during construction,temperature cracks are likely to occur due to temperature gradients inside and outside the concrete.Based on the actual construction of the foundation raft of the Zhenghang Jiayuan construction project,this study analyzes the causes of temperature cracks in large volume concrete and proposes control measures for temperature cracks in large volume concrete.The results show that a series of temperature control measures,such as strict selection of raw materials,optimization of ratios,improvement methods,and temperature measurement and control,have effectively avoided the generation of cracks.
basic raft boardlarge volume concretetemperature control and crack prevention