Optimization Design of Mass Concrete Mix Ratio Application of Mass Concrete Mix Ratio Optimization Design in the Foundation of Large-scale Dynamic Load Equipment
Optimization Design of Mass Concrete Mix Ratio Application of Mass Concrete Mix Ratio Optimization Design in the Foundation of Large-scale Dynamic Load Equipment
In order to study the crack control of concrete foundation of large dynamic load equipment,fly ash and slag were added to reduce the heat of hydration,and the optimal design of concrete mix was carried out.According to the mechanical properties,adiabatic temperature rise test and the measured results of concrete temperature and stress,the crack resistance of the optimal concrete mix was analyzed.The results show that the temperature difference between inside and outside of the optimum concrete mix ratio is less than 25 ℃,which meets the specification requirements and has good crack resistance.The tensile stress is generated on the upper surface of the central area of the cast silo block,and the compressive stress is generated in the remaining areas,and the stress is smaller than the strength of the corresponding age concrete,which meets the requirements of crack control.
关键词
大体积混凝土/配合比/内外温差/温度应力/裂缝控制
Key words
mass concrete/mix ratio/temperature difference between inside and outside/temperature stress/crack control
维普
万方数据