Mechanical Properties Of Reactive Powder With Basalt Reinforcement Concrete Beams

With the rapid development of modern building structures in our country, therequirement of the performance of concrete in different aspects is increasing. Andreactive powder concrete (RPC) is a new type of high performance materialsresearched by the French in the laboratory in nineties of the20th century after highstrength concrete and high performance concrete, it is high technology concrete ofsuper fine particles density material and fiber reinforced composite, and its superiorcompressive, shear and flexural performance effectively reduced the weight, then isrelatively obvious on the structural seismic performance and shock resistanceincrease, so it is necessary for us to do some in-depth study on all aspectsperformance of reactive powder concrete, but RPC is not studied enough mature bydomestic and foreign scholars at present, such as research is fewer with thecombination of new steel material and RPC, in order to consider the environmentconditions of specimen further, this paper will be study reactive powder concretestructure with basalt fiber (BFRP),which has a realistic significance.We have gotten mechanical properties index of RPC such as compressivestrength, elastic modulus, peak strain and Poissons ratio through prism compressiontest of the five groups reactive powder concrete under the standard curing. RPCcompressive constitutive equation is obtained with combining the stress-strain curvefitting and using mathematics analysis, and it is easy to find mechanical properties ofRPC was obviously higher than that of ordinary concrete under the same curingcondition by the experimental results. Five groups reactive powder concrete beamwith BFRP reinforcement test is did with three point load. A complete set of testingprocess are introduced such as specimen design, production,maintenance, loadingsystem, experimental phenomena and results. Tensile test is did for BFRP bar and thetensile properties of basalt fiber are analyzed. The plastic influence coefficient ofresistance moment of experimental beams sectional, cracking bending moment andultimate moment mathematics expression correctness is proved throughexperimental results. The mechanical properties of reactive powder concrete beam specimen with BFRP reinforcement is simulated calculation and analysis using ANSYSfinite element analysis software and measured deflection and steel bar stress valueverify the validity of the ANSYS finite element simulation analysis. Using functionalanalysis method to determine the test beam crack location shows the correctness ofthis method compared with experimental fracture.