Noise-reduction micro-surfacing system with high shear strength and preparation method therefor

Abstract

The invention particularly relates to a noise-reduction micro-surfacing system with high shear strength and a preparation method therefor. The noise-reduction micro-surfacing system is used for solving the problem that the existing micro-surfacing systems are poor in shear strength and relatively high in noises. The noise-reduction micro-surfacing system is prepared from the following raw materials in parts by mass: 30-35 parts of emulsified rubber asphalt, 20-25 parts of self-emulsifying epoxy resin emulsion, 5 parts of polyethylene glycol abietate, 2 parts of glycerol monostearate, 15-45 parts of water, 345 parts of graded broken stone, 6 parts of cement and 2 parts of lime hydrate. The micro-surfacing system disclosed by the invention is high in elongation at break and good in ductility, has good fatigue resistance and is high in bonding strength, and stones are not prone to spalling; epoxy resin can form an integrated crosslinking structure while the ductility of epoxy resin is improved; and meanwhile, the degradation of waste rubber powder is promoted, the storage stability of two kinds of emulsions is improved, the time of demulsification is prolonged, and the operable time is prolonged.

Description

technical field [0001] The invention relates to the field of road repair and maintenance, in particular to a noise-reducing microsurfacing with high shear strength and a preparation method thereof. Background technique [0002] With the gradual completion of the construction of expressways in our country, most expressways have entered the initial maintenance stage. A large number of expressways have micro cracks in the early stage, and some expressways have already had serious ruts due to their heavy traffic volume. In order to solve the above problems At present, the face-to-face treatment technology of micro-surface is widely used, which not only solves the problem of water seepage in fine cracks, but also solves the problem of local rutting. [0003] The current micro-surfacing is mainly constructed with slow-cracking and fast-setting emulsified asphalt plus SBR latex modifier and some fillers. The emulsified asphalt modified by SBR latex essentially utilizes the good du...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor shear strength and high noise in the existing micro-surface, the present invention provides a noise-reducing micro-surface with high shear strength and a preparation method thereof

[0007] The selection of polyoxyethylene rosin acid, monoglyceride and the content of the two further improves the miscibility of emulsified rubber asphalt and self-emulsifying epoxy resin emulsion, prolongs the construction time, and overcomes the existing shear resistance at the micro-surface. Issues with poor intensity and loud noise