Experimental Study on Crack Resistance Performance of Asphalt Pavement Cover Repair Materials for Highways
In order to test the crack resistance of asphalt pavement cover repair materials on highways,this article uses a universal servo hydraulic testing machine to test the high-temperature stability,low-temperature crack re-sistance,and water stability of the repair materials.The test results show that when the content of basalt fiber is 10%,the dynamic stability is 6 100 times/mm,the flexural tensile strength is 11.56 MPa,the maximum flexural tensile strain is 3 500 Re,the flexural stiffness modulus is 3 300 MPa,the splitting strength of the repair material after freeze-thaw is 1.28 MPa,and the splitting strength ratio is 84.24%.Therefore the use of this material to re-pair,the highway pavement has the best creak resistance.The testing method of this study can provide useful ref-erence for the maintenance and repair of asphalt pavement,in order to extend the service life of the pavement,improve driving safety and comfort.
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