Normal temperature repair asphalt solution additive and preparation method thereof

Abstract

The invention discloses a normal temperature repair asphalt solution additive and a preparation method thereof. The additive comprises the following components by mass percentage: 30%-35% of asphalt, 10%-15% a softener, 5%-10% of diesel, 5%-10% of a polymer, 0.25%-0.5% of sulphur, and 29.5%-49.75% of a viscosity reducer. Through simple blending of the additive provided by the invention and pavement petroleum asphalt, a high performance normal temperature repair asphalt solution can be prepared. The mixed normal temperature repair mixture has performance fully meeting relevant specification requirements, is applicable to the environment temperature, can truly achieve all-weather repair, and practical application proves that the performance is excellent.

Description

technical field [0001] The invention relates to a pavement patching material, in particular to a normal temperature patching asphalt liquid additive and a preparation method thereof. Background technique [0002] The development of the economy and the transportation industry has led to a rapid increase in traffic volume, and the situation of overloading and overloading has aggravated. As a result, the pavement often has loose, potholes, peeling and other diseases. If the road surface disease is not repaired in time, it will reduce the service life of the road surface, affect the normal traffic on the road, and the potholes on the expressway may even cause traffic accidents. [0003] At present, most of the road surface potholes are repaired in three forms: hot mix asphalt mixture, emulsified asphalt mixture and solvent-based normal temperature repair mixture. CO produced during the production of hot mix asphalt 2 , smoke and harmful gases (CO, SO 2 , NO x etc.), not onl...

AI Technical Summary

Problems solved by technology

Because the polymers such as SBS are not cross-linked, the normal temperature repair material has poor stability, the polymer will aggregate, the repaired road surface is easy to be damaged, and the normal temperature repair material requires more components, and the preparation is complicated; in addition, the patent does not involve repair Material performance and effect

[0005] CN1640939A discloses a kind of pavement pothole cold-mix repair material SBS bituminous liquid and its production process, this patent just is diesel oil, gasoline, SBS, ethylene glycol, antistripping agent and antiaging agent several materials simple mixing, because SBS failed to form a cross-linked network structure in asphalt, and the polymer failed to perform its full function

[0006] Solvent-based room temperature repair mixture has many advantages. Some manufacturers prepare room temperature repair asphalt liquid by themselves. However, due to the inappropriate selection of components and proportions, the room temperature repair material has a narrow climate range and cannot achieve true all-weather repair.

In order to improve the performance of normal temperature repair materials, some polymers or waste polymer materials are simply added to the asphalt liquid, which leads to the segregation of the polymer in the system, and fails to really exert the performance of the polymer in the asphalt, which will lead to repair Material performance is poor