Self-leveling Cement Grout Gravel With Bitumen Performance

his paper studies the preparation of molded self-leveling cement grout gravel asphalt composites to determine the matrix grading gravel and asphalt aggregate ratio and studied the self-leveling cement slurry properties and its modification, got its fluidity, tensile strength and compressive shrinkage index. Composites after forming its high temperature stability, low temperature stability and water stability of these three road performance indicators, and asphalt and gravel slurry poured into ordinary composites do comparison, then study the composite compressive strength flexural variation of intensity with age, measured their compressive resilient modulus and splitting strength for pavement structure design provides a combination of parameters basis. Develop a combination of two forms of pavement structure, pavement structure behavior evaluation through a combination of two structures(self-leveling cement grout asphalt composites were done on top of the gravel layer and the underlying layer) of the pros and cons. The conclusion that the following contents and conclusions:In literature and reference books to determine the parent mixture aggregate gradation of gravel for the single particle size range were 9.5-13.2mm and 16-19 mm. Cantabro tests conducted in the Marshall test and measurement to determine the optimum asphalt matrix asphalt splitting ratio were 2.0% and 1.8% on the basis of stability.Reference senior thesis fix Filling with ordinary cement and expansive cement ratio and superplasticizer dosage and this study comparing self-leveling cement paste, draw fluidity and compression tensile strength and drying shrinkage cracking test.Track Test dynamic stability of semi-flexible pavement composites are 10,000 times / mm or more, much higher than ordinary AC-13 dense graded asphalt concrete 1054 times / mm; leveling dynamic stability irrigation water resulting slurry I type composite filling self-leveling cement paste nearly 70% higher than ordinary paste filling cement ratio 0.46. Temperature stable performance according to this indicator strain energy density comparison order: self-leveling cement asphalt macadam> AC-13 mixture> portland cement asphalt rubble. Self-leveling cement grouting asphalt macadam stability before and after soaking are higher than ordinary cement grouting asphalt cement ratio 0.46 gravel, cement grouting asphalt splitting water stability(ie residual stability) and the degree of water poured into a large mud relations, not relations with residual stability. Self-leveling cement grout bitumen macadam compressive resilient modulus greater than ordinary cement compressive modulus of resilience, but still within the asphalt mix design parameters. Test measured compressive resilient modulus and splitting strength of semi-flexible pavement design offers a combination of parameters basis.