Study on impact performance of basalt fiber reinforced magnesium phosphate cement
Magnesium phosphate cement(MPC)is widely used in the construction industry because of its excellent corrosion resistance,heat resistance and plasticity.To study the effect ofbasalt fiber(BF)on the impact resistance of MPC.The impact resistance test of BF-MPC was carried out using a drop hammer impact test apparatus.The effects of basalt fibers of different lengths and doping amounts on the impact resistance of MPC were analyzed.The Weibull mathematical and statistical model was used to fit the impact test results and predict the failure probability.The incorporation ofbasalt fibers can significantly improve the impact resistance of MPC.Among them,the incorporation of basalt fibers with a volume doping of 1.5％and a length of 6mm has the greatest improvement on the impact resistance of MPC,and the number of initial and final cracks is more than three times of that without the incorporation of fibers.The impact number of BF-MPC obeyed the two-parameter Weibull distribution very well.The doping of BF can significantly improve the impact resistance of MPC.
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