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Rapid repair adhesive as well as preparation method and application method thereof
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An adhesive and fast technology, used in sustainable waste treatment, solid waste management, pavement detailing, etc., can solve the problems of slow curing speed, long closed traffic time, curing speed to be improved, etc., to achieve fast curing speed, Increase the effect of compactness and high flatness
Active Publication Date: 2021-07-16
北京东方富昊新型建材有限公司
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[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
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preparation example 1-6
[0043] The EVA powder in the preparation example 1-6 is selected from Dongguan Xiegang Lianfa Plastic Raw Material Management Department, the model is 150W, and its performance parameters are shown in Table 1; the emulsifier is selected from Guangzhou Zhanlin Chemical Co., Ltd., the model is NP-10 ; Waste tire rubber powder is selected from Lingshou County Detong Mineral Products ProcessingPlant, the model is DT-XJ71; silanecoupling agent KH570 is selected from Qingdao Xuxin Chemical Co., Ltd.; bisphenol F epoxy resin is selected from Shanghai Fanxiao Chemical Technology Ltd., model number 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 sodiumhypochlorite 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. The particle size of tire rubber powder is 80 mesh;
[0048] (3) Mix EVA powder and emulsifier, raise the temperature to 100°C, adjust the pH to 7, mix with the capsule core material, stir evenly, adjust the pH to 4 with dilute hydrochloric acid, filter, wash, and dry to make rubber powder, 10kg Capsule core material and 2kg EVA powder, emulsifier dosage is 0.4k.
preparation example 2
[0049] Preparation Example 2: (1) Mix 13kg of waste tire rubber powder with 23kg of sodiumhypochlorite 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. The particle size of tire rubber powder is 80 mesh;
[0051] (3) Mix EVA powder and emulsifier, raise the temperature to 120°C, adjust the pH to 7, mix with the capsule core material, stir evenly, adjust the pH to 4 with dilute hydrochloric acid, filter, wash, and dry to make rubber powder, 15kg Capsule core material and 4.5kg EVA powder, emulsifier dosage is 0.6k.
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Abstract
The invention relates to the field of pavement maintenance, and particularly discloses a rapid repair adhesive as well as a preparation method and an application method thereof. The rapid repair adhesive comprises the following components in parts by weight: 30-50 parts of a cementing material, 20-40 parts of coarse aggregate, 2-50 parts of rubber powder, 1-10 parts of an accelerant, 1-10 parts of a water reducing agent, 1-10 parts of a water retaining agent and 2-10 parts of an early strength agent; the cementing material comprises natural gypsum, an acrylic polymeremulsion and an early strength agent in a mass ratio of (4-6):(2-3):1; the preparation method comprises the following steps: uniformly mixing the cementing material, the coarse aggregate and the rubber powder to form a primary material; and adding a coagulation accelerator, a water reducing agent, a water retaining agent and an early strength agent into the primary material, and uniformly mixing to obtain the rapid repair adhesive. The quick repair adhesive has the advantages of short curing time, high bonding strength, small shrinkage rate, high compressive strength and high impermeability.
Description
technical field [0001] This application relates to the technical field of road surface maintenance, more specifically, it relates 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 solidified concrete, which has disadvantages such as thick panels, poor construction quality, and low design strength, and is prone to cracks. If the repair is not timely, under the double influence of the reciprocating action of the vehicle load and environmental factors, the cracks will expand and penetrate with time, stress concentration will occur at the cracks, the concrete will fall along the cracks, the cracks will break, and the concrete slab will slip. Destruction of the integrity of the concrete pavement will affect the driving safety of the car in serious cases, and even...
Claims
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Application Information
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