Large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer and preparation method thereof

A technology of modified asphalt and a production method, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve the problems of high cost, unstable quality, large energy consumption, etc., and achieves low production cost and reduced stress strength. factor, the effect of reducing energy consumption and cost
CN104233918AInactive Publication Date: 2014-12-24NANJING TONGAN ROAD ENG +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING TONGAN ROAD ENG
Publication Date
2014-12-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer and a preparation method thereof, and relates to a pavement structure layer consisting of large-grain-diameter rubber block-modified asphalt and fiber together with single-grain-diameter gravels, and a preparation method thereof. The large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer consists of aggregate, fiber and rubber block-modified asphalt. The preparation method comprises the following steps: 1) sweeping, blowing dust and cleaning an underlayer; 2) preparing the rubber block-modified asphalt; 3) preparing the rubber block-modified asphalt mastic; 4) before sprinkling the rubber asphalt mastic, inspecting various indexes; 5) sprinkling the rubber block-modified asphalt mastic; 6) scattering and paving the gravels; 7) performing rolling compaction; 8) sweeping the large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer. The large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer is low in production cost, low in energy consumption, free of pollution and high in storage stability. The preparation method is convenient in construction, simple and feasible, and can be easily applied to industrial production.
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Description

technical field

[0001] The invention relates to a large-diameter rubber block modified asphalt mastic gravel seal layer and a manufacturing method thereof, which relate to a pavement structure layer composed of large-diameter rubber block-modified asphalt and fibers together with single-grain gravel. its production method. Background technique

[0002] The vast majority of asphalt pavements in my country use semi-rigid water-stabilized bases. However, due to the characteristics of semi-rigid base materials, reflective cracks are easily generated. In addition, in the road reconstruction project, cracks exist at the joints of old and new pavement and develop into reflective cracks. The appearance of reflective cracks destroys the integrity and continuity of the pavement structure, causes other early diseases, accelerates the destruction of asphalt pavement, and greatly reduces the service life of the road.

[0003] In recent years, rubber asphalt stress absorbing layers have...

Claims

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