脱硫橡胶沥青胶浆试验研究

Experimental Research of Desulfurized Rubber Asphalt Mortar

为了探明脱硫橡胶沥青胶浆的性能,研究制备脱硫橡胶沥青胶浆,借助脱硫橡胶溶胀模型,采用锥入度试验对脱硫橡胶沥青胶浆的高温性能展开研究,同时利用拉拔仪对其粘结性能进行研究,研究过程中采用40目橡胶沥青胶浆进行对比性试验;研究结果表明:脱硫橡胶沥青大幅度的降低了橡胶沥青的高温粘度,有利于施工和易性;脱硫橡胶沥青胶浆的抗剪强度远远大于相同胶粉掺量下的40目普通橡胶沥青胶浆,且其抗剪强度随胶粉掺量及粉胶比的增加而增大;脱硫橡胶沥青胶浆的拉拔强度略低于相同胶粉产量下的40目橡胶沥青胶浆,但两者最佳胶粉掺量下沥青胶浆拉拔强度,前者远远大于后者。

In order to explore the performance of the desulphurization rubber asphalt mortar, de-sulphurization rubber asphalt mortar was prepared, and its high temperature performance and adhesive property was researched by the test of cone penetration and pull-out test with desulfurization rubber sweli- ing model, 40 mesh rubber asphalt was also researched to be comparison; The results show that： desulfu- rization rubber asphalt could greatly reduce the high temperature viscosity of the rubber asphalt, and con- ducive to workability; the shear strength of desulfurization rubber asphalt mortar is far greater than the same dosage of powder under 40 mesh rubber asphalt mortar, and the shear strength increases with the dosage of powder and powder-binder ratio; the pull strength of desulfurizatiojn rubber asphalt mastic slightly lower than the same powder production under the 40 mesh rubber asphalt mastic, the former is much larger than the latter.