Preparation method and application of microwave response type asphalt-based waterproof binder

An asphalt-based and binder technology, applied in the direction of asphalt material adhesives, adhesives, non-polymer adhesive additives, etc. The problem of surface pavement falling off, to achieve the effect of reducing maintenance cost, excellent fluidity and permeability, and improving fluidity and permeability

Pending Publication Date: 2022-05-20
中化学交通建设集团第二工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, with the increasingly heavy traffic load, it is difficult for the conventional waterproof bonding technology to meet the problem of taking into account multiple performances at the same time, and it is difficult to adapt to the diversified and high-performance road use and maintenance needs, and there are few sources of waterproof bonding materials on the market, and the price is low. High, uneven performance, easy to be damaged during the construction process, resulting in reduced adhesion of the waterproof adhesive layer, which can seriously cause the bridge deck pavement to fall off

Method used

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  • Preparation method and application of microwave response type asphalt-based waterproof binder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation method of microwave-responsive asphalt-based waterproof binder, including the following steps: nano SiC and nanoFe 3 O 4 According to the mass ratio of 1:1 fully mixed well, the mixture after mixing is added to the asphalt-based waterproof adhesive material and further mixed to obtain a microwave-responsive asphalt-based waterproof adhesive;

[0020] The asphalt-based waterproof bonding material is SBS modified asphalt, the nano SiC particle size is 40 nm, the purity is 99.90%, nano Fe 3 O 4 Particle size is 20 nm, purity is 99.90%; the nano SiC and nano Fe 3 O 4 The total mass accounts for 3% of the total mass of the microwave-responsive asphalt-based waterproof binder;

[0021] Combine nano SiC and nano Fe 3 O 4After mixing well into the mixture, first add a mixture with a mass ratio of 40% to the SBS modified asphalt, mix it at 150 °C for 60 seconds, then add the remaining mixture, and mix it at 150 °C for 90s.

Embodiment 2

[0023] The difference between the present embodiment and Example 1 is: the nano SiC and nanoFe 3 O 4 The total mass accounts for 5% of the total mass of the microwave-responsive bitumen-based waterproof binder.

Embodiment 3

[0025] On the basis of the above embodiment, the present embodiment provides an application of a microwave-responsive asphalt-based waterproof adhesive, comprising the following steps: the prepared microwave-responsive asphalt-based waterproof adhesive is evenly spread on the upper surface of the bridge deck, the microwave-responsive asphalt-based waterproof adhesive after paving constitutes a waterproof adhesive layer, and then the upper surface of the waterproof adhesive layer is constructed, and the microwave maintenance vehicle is used to heat the pavement after the construction of the paving layer, so that the waterproof adhesive layer absorbs the wave to heat up, Thus further fully bonding with the bridge deck and pavement layer;

[0026] Microwave-responsive asphalt-based waterproof binder prepared by automatic spraying equipment, microwave-responsive asphalt-based waterproof binder dosage is 0.8kg / m 2 , sprayed in 3 layers, in which the adjacent upper layer of microwave-re...

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Abstract

The preparation method of the microwave response type asphalt-based waterproof binder comprises the following steps: sufficiently and uniformly stirring nano SiC and nano Fe3O4 according to a mass ratio of 1: 1, and adding the uniformly stirred mixture into an asphalt-based waterproof binder material for further uniform stirring. The application of the microwave response type asphalt-based waterproof binder comprises the following steps: uniformly paving the prepared microwave response type asphalt-based waterproof binder on the upper surface of a bridge deck slab, then carrying out pavement layer construction, heating a pavement by adopting a microwave maintenance vehicle after the pavement layer construction is finished, so that a waterproof bonding layer absorbs waves and is heated, and the microwave response type asphalt-based waterproof binder is obtained. Therefore, the bridge deck is further fully bonded with the pavement layer. The invention relates to the technical field of waterproof binders and bridge deck waterproof bonding layer construction methods, the bonding strength of the waterproof bonding layer can be remarkably improved, and self-repairing of the waterproof bonding layer can be promoted through microwave heating in the service period of the waterproof bonding layer.

Description

Technical field [0001] The present invention relates to the technical field of waterproof adhesive and bridge deck waterproof adhesive layer construction method, specifically relates to a microwave response type asphalt-based waterproof adhesive preparation method and application. Background [0002] With the vigorous development of China's transportation industry, the safety and durability requirements of bridge projects are increasing. Bridge deck paving is an important part of bridge structure, and its quality directly affects driving safety, comfort, durability, and the economic and social benefits of investment. Bridge deck paving is susceptible to disease problems under the joint influence of natural conditions such as temperature, precipitation and traffic load conditions, among which the bond failure of waterproof adhesive layer is one of the main causes of bridge deck paving diseases. The damage, detachment and leakage of the waterproof adhesive layer, the water penetrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J11/04E01D19/08
CPCC09J195/00C09J11/04E01D19/083C08K2201/011C08K2003/2275C08K2201/005C08K3/34C08K3/22Y02A30/60
Inventor 张钦展李磊孙晓峰张宝弟张春恩顾长春秦开洪
Owner 中化学交通建设集团第二工程有限公司
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