High-modulus asphalt mixture based on old pavement milling material, and preparation method thereof

An asphalt mixture and high modulus technology, which is applied in the field of road engineering, can solve the problems of high production cost of high modulus asphalt mixture, poor regeneration quality of milling materials, and difficulty in popularization, and achieve outstanding economic benefits and low production costs. The effect of reducing and alleviating environmental pressure
CN107698199AActive Publication Date: 2018-02-16江苏天诺环境工程技术开发有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
江苏天诺环境工程技术开发有限公司
Publication Date
2018-02-16

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Abstract

The present invention discloses a high-modulus asphalt mixture based on an old pavement milling material, and a preparation method thereof, and belongs to the technical field of road engineering, wherein the high-modulus asphalt mixture comprises the following raw materials by mass: 35-75% of the lean oil coarse component (particle size of greater than 4.75 mm) in an old pavement milling material,25-65% of the rich oil fine component (particle size of less than 4.75 mm) in an old pavement milling material, 0.1-2% of a modification regeneration agent, 0-20% of new aggregate, 0-3% of ore powder, and 0-3% of new asphalt. According to the present invention, the high-modulus asphalt mixture prepared through the method has advantages of high modulus, excellent mechanical property, good anti-rutting ability, good durability and good water stability; the 100% recycling of the lean oil coarse aggregate in the old asphalt pavement milling material and the 100% resource utilization of the rich oil fine aggregate are achieved, and the potential value of the old asphalt pavement milling material is completely provided; and the super-long service life, the safe driving and the economy of the pavement are achieved.
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Description

technical field

[0001] The invention belongs to the technical field of road engineering and relates to a high-modulus asphalt mixture, in particular to a high-modulus asphalt mixture based on old road surface milling material and a preparation method thereof. Background technique

[0002] The recycling of asphalt pavement milling material (hereinafter referred to as RAP) has become an effective way to save resources and reduce environmental pollution recognized at home and abroad. At present, the recycling of asphalt from RAP materials mainly includes hot-in-place regeneration, industrial heat regeneration, and cold-in-place regeneration. And factory cold recycling, etc. Different technologies have their own adaptability, advantages and disadvantages, but industrial thermal regeneration is a regeneration technology that can realize the performance recovery of aged asphalt in RAP materials, the classification and utilization of aggregates, and the relatively uniform performan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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