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A kind of rapid repair adhesive and its preparation method and application method

An adhesive and fast technology, applied in roads, sustainable waste treatment, solid waste management, etc., can solve the problems of long closed traffic, curing speed to be improved, slow curing speed, etc., to achieve increased compactness, Fast curing speed and effect of reducing porosity

Active Publication Date: 2022-06-07
北京东方富昊新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the existing pavement repair materials have a slow curing speed in practical application, and need to close the traffic for a long time, so the curing speed needs to be improved

Method used

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  • A kind of rapid repair adhesive and its preparation method and application method
  • A kind of rapid repair adhesive and its preparation method and application method
  • A kind of rapid repair adhesive and its preparation method and application method

Examples

Experimental program
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Effect test

preparation example 1-6

[0043] In preparation example 1-6, EVA powder is selected from Dongguan City Xiegang Lianfa Plastic Raw Material Management Department, model is 150W, and its performance parameters are shown in Table 1; emulsifier is selected from Guangzhou Zhanlin Chemical Co., Ltd., model is NP-10 ; Waste tire rubber powder is selected from Lingshou County Detong Mineral Products Processing Plant, model is DT-XJ71; Silane coupling agent KH570 is selected from Qingdao Xuxin Chemical Co., Ltd.; Bisphenol F epoxy resin is selected from Shanghai Fanxiao Chemical Technology Co., Ltd. Ltd., model F170.

[0044] Table 1 Performance parameters of EVA powder

[0045]

preparation example 1

[0046] Preparation Example 1: (1) Mix 10kg of waste tire rubber powder with 20kg of sodium hypochlorite with a concentration of 15%, stir at 60°C for 30min, filter, wash until neutral, and dry at 75°C for 6h to obtain activated rubber powder, waste The particle size of tire rubber powder is 80 mesh;

[0047] (2) mixing activated rubber powder, 4kg silane coupling agent KH570, 2kg bisphenol F epoxy resin and 0.5kg ammonium persulfate, and stirring uniformly to obtain core material;

[0048] (3) Mix EVA powder and emulsifier, heat up to 100°C, adjust pH to 7, mix with capsule core material, stir evenly, adjust pH to 4 with dilute hydrochloric acid, filter, wash, dry to make rubber powder, 10kg The core material of the capsule and 2kg of EVA powder, the dosage of emulsifier is 0.4k.

preparation example 2

[0049] Preparation Example 2: (1) Mix 13kg of waste tire rubber powder with 23kg of sodium hypochlorite with a concentration of 18%, stir at 70°C for 25min, filter, wash until neutral, and dry at 80°C for 5h to obtain activated rubber powder, waste The particle size of tire rubber powder is 80 mesh;

[0050] (2) mixing the activated rubber powder, 6kg of silane coupling agent KH570, 2.5kg of bisphenol F epoxy resin and 0.8kg of ammonium persulfate, stirring evenly, to obtain a capsule core material;

[0051] (3) Mix EVA powder and emulsifier, heat up to 120°C, adjust pH to 7, mix with capsule core material, stir evenly, adjust pH to 4 with dilute hydrochloric acid, filter, wash, and dry to make rubber powder, 15kg The core material of the capsule and 4.5kg of EVA powder, the dosage of emulsifier is 0.6k.

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Abstract

The application relates to the field of road surface maintenance, and specifically discloses a quick repair adhesive, a preparation method and an application method thereof. The quick repair adhesive comprises the following components by weight: 30-50 parts by weight of cementitious material, 20-40 parts by weight of coarse aggregate, 2-50 parts by weight of rubber powder, 1-10 parts by weight of accelerator, and water reducing agent 1-10 parts by weight, 1-10 parts by weight of water-retaining agent, 2-10 parts by weight of early-strength agent; the gelling material includes natural gypsum, acrylic polymer emulsion and early-strength agent with a mass ratio of 4-6:2-3:1 The preparation method is as follows: uniformly mix the cementitious material, coarse aggregate and rubber powder to form a primary material; add coagulant, water reducing agent, water retention agent and early strength agent to the primary material, and mix uniformly to obtain Quick patch adhesive. The rapid repair adhesive of the present application has the advantages of fast curing time, high bonding strength, small shrinkage, high compressive strength and strong impermeability.

Description

technical field [0001] The present application relates to the technical field of pavement maintenance, and more particularly, to a quick repair adhesive and its preparation method and application method. Background technique [0002] With the rapid development of the national economy, my country's road traffic construction has made remarkable achievements. The existing roads are mainly formed by curing concrete, which has disadvantages such as large panels, poor construction quality, and low design strength, which are prone to cracks. If it is not repaired in time, under the dual influence of vehicle load reciprocation and environmental factors, cracks will expand and penetrate over time, stress concentration will occur at the cracks, concrete will smash along the cracks, cracks will be broken, and the concrete slab will slip, and then Destruction of the integrity of the concrete pavement will affect the driving safety of the car in serious cases, and even cause serious econom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B20/10C04B20/02C04B18/22C04B14/06E01C11/00C04B111/72
CPCC04B28/14C04B20/023C04B18/22C04B20/1022C04B14/06E01C11/005C04B2111/0075C04B2111/72C04B2111/00646C04B24/26C04B2103/10C04B2103/302C04B2103/465Y02W30/91
Inventor 付智伟
Owner 北京东方富昊新型建材有限公司