Study On The Impermeability And Impact Resistance Of Basalt Fiber Rubber Concrete

Nowadays, more people pay attention to the quality and safety of construction projects. The quality aspect of the project to make a guarantee for the personal safety and security, on the other hand also as far as possible in line with the state to promote green, environmental, economic, strategic requirement of sustainable development. As the number of cars increase, a sharp rise in the number of waste tires, processing scrap tires has always been a problem. Using tires for recycling, and become rubber particles and fine powder added to the concrete, not only can improve some properties of concrete, and this approach can effectively reduce the pollution, while actively responding to national policy for sustainable development. Basalt fiber is a new type developed in recent years. It’s an inorganic, green, high-performance fiber materials. Compared with the more current study which is polypropylene fiber and steel fiber, It has good stability, resistance to aging, many excellent electrical insulation properties, high temperature, etc. So the life and durability of the fiber concrete have greatly improved.Given the features of two materials, this paper used rubber powder and basalt fiber to obtain a new composite concrete: Basalt Fiber Rrubber Concrete. At the different water-cement ratio(0.32 and 0.38) conditions, different contents mechanical properties of basalt fibers of different lengths of rubberized concrete, impermeability and impact properties were tested. Studies have shown that, with the incorporation of rubber powder and mechanical properties of concrete, in particular the compressive strength decreased, and impermeability, impact resistance improved significantly. Incorporation of basalt fiber on this basis, concrete has good crack resistance and toughening effect. Comprehensive view of the performance, fiber-cement ratio concrete optimal dosage of two kinds of different water-cement ratio is 0.32 when the optimal dosage is about 0.12%, while the water-cement ratio increased to 0.38, the optimum doping an amount of 0.10%. And the shorter the length of the fibers, the better the impact resistance. Abaqus finite element software through concrete impact process simulation, obtained under the same impact load, reduce damage rate of fiber concrete than ordinary concrete. Finally, used the fiber spacing theory and numerical analysis to discusse while under the different conditions of water-cement ratio, the optimal dosage of different fibers.