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A kind of anti-skid mist sealing layer material and its construction method

A technology of fog sealing layer material and fine aggregate, applied in chemical instruments and methods, other chemical processes, roads, etc., can solve the problems of low friction, reduced road anti-skid performance, insufficient anti-skid performance, etc.

Active Publication Date: 2020-10-23
JIANGSU ZENGGUANG COMPOSITE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there are many fog seal materials at home and abroad, such as water-based emulsified asphalt, coal tar-based fog seal materials, silicone-based fog seal materials, etc. However, it is found in practical engineering applications that commonly used fog seal materials are resistant to Insufficient sliding performance. After the mist seal layer is constructed, a layer of asphalt film will be formed on the road surface. This layer of asphalt film made of asphalt has a smooth surface, and the friction between the tire and the tire is small, which directly reduces the skid resistance of the road surface.

Method used

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  • A kind of anti-skid mist sealing layer material and its construction method
  • A kind of anti-skid mist sealing layer material and its construction method

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preparation example Construction

[0035] In the present invention, the emulsified asphalt is a kind of water-based asphalt; the preparation method of the emulsified asphalt preferably includes: mixing base asphalt, emulsifier and water at 140° C. to obtain emulsified asphalt. In the present invention, the mass ratio of the base asphalt, emulsifier and water is preferably 60:(0.4-0.6):40, more preferably 60:0.5:40. The source of the matrix asphalt in the present invention has no special requirements, and the asphalt for laying roads well known to those skilled in the art can be used. In the present invention, the emulsifier is preferably indulinAA57. The present invention uses the emulsifier to modify base asphalt under the condition of 140°C, and the emulsified asphalt produced by using the emulsifier has very good permeability, which is far superior to other emulsified asphalts. In the present invention, the anti-slip and fog sealing layer material further includes a polymer modifier and fine aggregates. In...

Embodiment 1

[0051] According to 300 grams of epoxy resin, 100 grams of curing agent, 200 grams of emulsified pitch, 240 grams of fine aggregate and 0.8 g of polymer modifier are prepared; Wherein, epoxy resin is epoxy resin H1150 and epoxy resin H103, and the ring The technical requirements of epoxy resin H1150 meet: solid content ≥ 50%, fineness ≤ 40μm, viscosity at 20°C is 150-250Pa·s, epoxy value is 0.21-0.24mol / 100g; technical requirements of epoxy resin H103 Satisfy: solid content≥20%, fineness≤40μm, viscosity at 20°C is 50-80Pa·s, amine value is 0.06-0.08mol / 100g. Emulsified asphalt is obtained by mixing base asphalt, emulsifier and water at 140°C; the cybernetic viscosity of emulsified asphalt is 100s, the evaporation residue of emulsified asphalt is ≥60wt.%, and the density is 0.91g / cm 3 , 25 ℃ and 5s time, the penetration under the load of 0g is 30 degrees.

[0052] Mix the components for 20 minutes under stirring to obtain a mixed slurry, which is set aside.

[0053] The road ...

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Abstract

The invention provides an anti-slip fog sealing layer material and a construction method thereof. The anti-slip fog sealing layer material is prepared from epoxy resin, a curing agent, emulsified asphalt, fine aggregate and a polymer modifying agent. The mass ratio of the epoxy resin to the curing agent to the emulsified asphalt is 3:1:2, the fine aggregate is 30%-50% of the total mass of the epoxy resin, the curing agent and the emulsified asphalt, and the polymer modifying agent is 0.4%-0.6% of the mass of the emulsified asphalt. The anti-slip fog sealing layer material can seep into gaps ofroad surface aggregate or even flow into road surface pores, achieves road surface 'blood transfusion', accordingly restores the attachment of the asphalt of the road surface, fills small cracks andgaps of the road surface and prevents road surface water seepage. In addition, the fine aggregate provides the anti-slip capability of the road surface, and the friction coefficient of the road surface after treatment with an anti-slip fog sealing layer is improved. A result of the embodiment shows that after the surface of a road is treated with the anti-slip fog sealing layer material, and the friction coefficient of the road surface reaches 60 BPN or above.

Description

technical field [0001] The invention relates to the technical field of road maintenance, in particular to an anti-slip and mist sealing layer material and a construction method thereof. Background technique [0002] After several years of normal use of the asphalt pavement, the pavement will experience slight fatigue cracks and loss of fine aggregates, and its anti-seepage performance will deteriorate, and pavement water will enter the asphalt mixture through cracks or fine aggregate damage. , accelerated the damage of the road surface. [0003] Fog seal is currently widely used as a preventive road maintenance measure with high maintenance performance and low cost. The fog seal material is sprayed on the road surface to form a thin layer of seal on the surface of the road to realize the protection of tiny cracks and surfaces. The filling of voids plays the role of waterproofing and inhibiting loose pavement, reducing the impact of aging and weathering on pavement performan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14E01C7/35
CPCC09K3/149E01C7/358
Inventor 周庆月
Owner JIANGSU ZENGGUANG COMPOSITE MATERIAL TECH
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