Hole-blocking-preventing ultra-light sealing material for water seepage test of large-gap asphalt pavement

Abstract

The invention discloses a hole-blocking-preventing ultra-light sealing material for a water seepage test of a large-gap asphalt pavement. The hole-blocking-preventing ultra-light sealing material is mainly prepared from the following raw materials of: a binder, waterproof putty, a gelling agent, water, a filler, a coloring agent, a defoaming agent, a wetting agent and a mildew preventive, wherein the gelling agent is glutaraldehyde, and the filler is hollow microspheres or a mixture of hollow microspheres and fumed silica. The sealing material has the advantages of good sealing property, no hole blockage, light specific gravity, black color, easiness in storage, convenience in reuse and the like. Accordingly, the inventor also provides a corresponding preparation method.

Description

Technical field [0001] The present invention belongs to the technical field of massive material for large-air asphalt pavement test, and in particular, the present invention relates to a large air gap asphalt pavement seepage test anti-blocking hole ultra-light sealing material. Background technique [0002] The large-channel asphalt pavement is a new type of opening with a pitch road with a void ratio between 18% to 25%, which is 5 to 6 times the routine road void ratio. Under the water-water surface, the lower asphalt surface layer is made of a dense grade asphalt concrete, and a waterproof stick layer is provided between the large air gap water-water asphalt surface and the middle layers, and the longitudinal lateral groove and the lateral drainage pipe are provided under the shoulder. In addition to the water energy of the drainage function layer to the water supply function layer, thereby eliminating a road surface water film that brings many driving adverse effects, signifi...

AI Technical Summary

Problems solved by technology

Existing sealing materials such as calcium-based grease, plasticine, and glass glue are all water-sealing sealing materials developed for densely graded asphalt pavement. Asphalt pavement with voids is artificially blocked, and the sealing material after the plugging is difficult to clean, artificially reducing the water permeability of asphalt pavement with large voids; at the same time, the existing sealing materials are dense and inconvenient to carry during the test and detection process; soap, Sealing materials such as flour can only be used once and cannot be reused, resulting in waste of cost, and the color is inconsistent with the color of the road surface, which affects the appearance of the road surface

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