Research on Mechanical Properties of Hybrid Fiber Reinforced Concrete for Main Body of a Large Thermal Power Plant
In order to improve the mechanical properties of concrete used in the main structural engineering of thermal power plants and reduce the cost of concrete use,steel fibers and polyethylene fibers were used as hybrid fibers to investigate the effects of single fibers and hybrid fibers on the basic mechanical properties and bending resistance of concrete.The results showed that with the gradual increase of steel fiber and polyethylene fiber content,the compressive strength and flexural strength of concrete specimens showed a trend of first increasing and then decreasing,while the tensile strength and flexural strength showed a trend of gradually increasing.When the content of fixed steel fibers was 1.0%,changing the content of polyethylene fibers resulted in consistent changes in the basic mechanical and flexural properties of concrete specimens with single fibers.When the content of polyethylene fibers was also 1.0%,the compressive and flexural strength of concrete specimens could reach their maximum values.At this time,the tensile and flexural strength values of concrete specimens were also relatively high,and the comprehensive mechanical properties were better.The research results suggest that the use of polyethylene fibers and steel fibers as hybrid fibers in concrete can effectively improve its basic mechanical and bending properties,and can meet the construction needs of the main structure of the thermal power plant.
Main building of a thermal power plantMixed fibersDosageMechanical propertiesBending resistance performance
万方数据
维普
