Thin slurry mixture of reactive type rubber asphalt micro-surfacing thin overlay and laying method

Abstract

The invention discloses a thin slurry mixture of a reactive type rubber asphalt micro-surfacing thin overlay and a laying method. The thin slurry mixture comprises the following components in parts by mass: 100 parts of aggregate, 14-16 parts of emulsified reactive type rubber asphalt, 1-3 parts of cement, 0.5-0.8 part of an emulsifier and 7-13 parts of water. According to the thin slurry mixture of the reactive type rubber asphalt micro-surfacing thin overlay and the laying method, the reactive type rubber asphalt processed from waste tires is directly used in emulsified asphalt, and the low-temperature crack resistance of a conventional asphalt pavement micro-surfacing overlay can be effectively improved; the technology disclosed by the invention can be applied to road surface, pavement and bridge deck pavement layer surface, without affecting original construction equipment of a micro-surfacing paver and a construction technology, so that the promotion and application of a curing technology or a thin overlay technology can be accelerated.

Description

technical field [0001] The invention relates to a slurry mixture and a laying method of a reactive rubber asphalt micro-surface thin-layer overlay, which belongs to normal-temperature asphalt for laying overlays such as roads, urban roads, tunnel pavements, airport pavements, and bridge deck pavements. Mixture mixing and laying technology. Background technique [0002] With the development of the economy and the development of the automobile industry, the task of logistics and transportation is becoming more and more heavy, and the development of automobiles tends to be large and heavy, which brings great challenges to the operation of expressways, other highways and urban logistics traffic arteries This will further aggravate the damage of the pavement, so there is an urgent need for a fast, convenient, safe and environmentally friendly process technology for pavement maintenance and maintenance. Micro-surfacing technology is a thin-layer overlay technology that meets such...

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Problems solved by technology

[0006] Purpose of the invention: In order to overcome the problem that the existing rubber powder modified asphalt is difficult to emulsify or it is difficult to meet the cold mixing and cold laying technology after emulsification, the present invention provides a thin slurry mixture and laying of reactive rubber asphalt micro-surface. method, through the direct emulsification of reactive rubber asphalt, the low-temperature crack resistance and fatigue resistance of the road overlay are significantly improved, and energy saving and environmental protection are used; the emulsified reactive rubber asphalt bonding material is used to fundamentally solve the problem in terms of technology and material composition. and overcome the difficulties of traditional crafts

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