High-strength thin-layer asphalt layer to increase the structural depth of debonding and deicing materials spraying interface

Abstract

The invention relates to a high-strength thin-layer asphalt layer for increasing the structural depth of the debonding and ice-suppressing material spraying interface. The high-strength thin-layer asphalt layer is laid on the original road surface or bridge surface with a layer of high-viscosity and high-elastic stress absorption layer, and then placed on the high-strength thin-layer asphalt layer Lay a layer of UTAC or OGFC high-strength thin asphalt layer mixed with asphalt modifier to increase the depth of asphalt pavement structure, improve the crack resistance and durability of asphalt pavement, improve the anti-skid performance of asphalt pavement, reduce road noise, and improve driving comfort The asphalt thin layer technology is suitable for pre-spraying debonding and ice-suppressing materials to make asphalt pavement or bridge deck with small depth. It can play the role of preventive maintenance, and can also be used as the surface wear layer of new roads to improve the performance of asphalt pavement.

Description

technical field [0001] The invention relates to a high-strength thin-layer asphalt layer that increases the structural depth of the debonding and ice-suppressing material spraying interface. The high-strength thin-layer asphalt layer can greatly increase the structural depth of the asphalt pavement, thereby effectively improving the efficiency of spraying the debonding and ice-suppressing material on the old road. Deicing effect, at the same time, this technology can also play a preventive maintenance role for asphalt pavement or bridge deck with cracks, pockmarks and slight rutting diseases, and can also be used as the surface wear layer of new roads, greatly improving the use of asphalt pavement performance. Background technique [0002] Ice and snow on roads in winter seriously endanger traffic safety and cause great pressure on people's travel. For this reason, countries are actively looking for new ways to remove ice and snow. Asphalt pavement debonding and anti-icing m...

AI Technical Summary

Problems solved by technology

[0002] Ice and snow on roads in winter seriously endanger traffic safety and cause great pressure on people's travel. For this reason, countries are actively looking for new ways to remove ice and snow. Asphalt pavement debonding and anti-icing materials provide a new solution for winter asphalt pavement deicing and snow , the material is composed of film-forming components, adhesive components and modified ice-suppressing components, which can form an isolation layer between the ice layer and the road surface, which can greatly reduce the adhesion between the ice layer and the road surface, making the ice The debonding and deicing materials can be easily removed. In the paper "Research and Development of Debonding and Icing Materials for Asphalt Pavement and Engineering Application Technology Research", the formulation, construction technology and construction technical requirements of the debonding and deicing materials are proposed. It is suggested that the construction depth of the asphalt road / bridge deck should not be less than 0.3mm; however, the construction depth of the asphalt asphalt road / bridge deck that has been in operation for a long time is often low, so it does not satisfy the construction depth of not less than 0.3mm The technical requirements of the asphalt pavement deicing deicing material cannot be sprayed or the deicing effect of the debonding deicing material is seriously affected; the patent (patent No.: ZL201410042795.2) and the patent (Patent Application No.: 201110077642.8) respectively proposed the formula and preparation method of snow-melting and deicing coatings, snow-melting and deicing The formula and production method of the coating, these two patents do not put forward requirements on the structural depth of the sprayed road surface; according to the technical principles of deicing and snow melting of the two patents, in order to achieve the deicing and snow melting effect of the material, it is necessary to propose a corresponding structural depth of the sprayed interface. At the same time, after a long period of operation of the asphalt road / bridge deck, diseases such as cracks, looseness, exposure and potholes will appear, and the asphalt pavement needs to be treated. It is often not applicable, so in order to make the asphalt road / bridge deck meet the conditions suitable for debonding and ice suppression materials, and at the same time repair the disease of the asphalt road / bridge deck, it is necessary to treat the asphalt road / bridge deck with a thin layer of overlay At present, thin-layer overlays such as Novachip are commonly used. This technology can better repair asphalt pavement / bridge decks with road surface defects, but there are also 1) special sticky layer emulsified asphalt NovaBond is required, and the cost is relatively high; Construction equipment requires special NovaPaver for construction, and the price of this equipment is twice that of traditional paving equipment, and the equipment input cost is relatively high; Large-void open-graded asphalt mixture is used, and the void ratio of the mixture is greater than 12%. Due to the large voids, the life of the mixture is affected

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