Reinforced cement concrete rapid repair material and rapid roadbed repair method

Abstract

The invention discloses a reinforced cement concrete rapid repair material and a rapid roadbed repair method, and relates to the technical field of concrete modification. The concrete comprises aggregate, cement, modified rubber powder, a thickening agent, a dispersing agent, a defoaming agent, an expanding agent, a coagulant, a retarder, hollow fibers, steel fibers and a modified resin chelating agent. The problems that an existing rapid repairing material is short in service life and prone to falling off are solved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete modification, in particular to a reinforced cement concrete quick repair material and a roadbed quick repair method. Background Art

[0002] Cement concrete is widely used due to its simple preparation and long service life, and is widely used in courtyard roofs, factory roads, workshop floors, municipal and rural roads, etc. However, due to the influence of the natural environment, cement concrete expands and contracts, freezes and thaws, snow melting and salting, and repeated loads, the surface of cement concrete has peeling, cracking, potholes, etc., which seriously affect the quality of traffic and operation.

[0003] Existing public patent information: Cement pavement quick repair material, using double quick cement, washed river sand, rubber powder, cellulose, polycarboxylic acid to make a self-leveling mortar product, has the advantages of fast solidification strength and quick traffic, but with the load of passing vehicles on the repaired cement pavement and rain and sun, the surface cracks and base concrete delamination and falling off will appear in 2-3 months. This type of repair material has a short lifespan and also causes a waste of resources. Summary of the invention

[0004] The purpose of the present invention is to provide a reinforced cement concrete quick repair material and a roadbed quick repair method to solve the problem that the existing quick repair material has a short service life and is easy to fall off.

[0005] In order to solve the above problems, the present invention adopts the following technical means: A reinforced cement concrete quick-repair material comprises aggregate, cement, modified rubber powder, thickener, dispersant, defoamer, expander, coagulant, retarder, hollow fiber, steel fiber and modified resin chelating agent.

[0006] Further, the aggregate includes 40-70 mesh natural quartz sand and 70-100 mesh natural quartz sand, and the cement includes high alumina cement and slag cement; In parts by weight, the natural quartz sand of 40-70 mesh is 15-25 parts, the natural quartz sand of 70-100 mesh is 35-45 parts, the high alumina cement is 10-15 parts, the slag cement is 20-25 parts, the modified rubber powder is 1.5-2.5 parts, the thickener is 0.1-0.2 parts, the dispersant is 0.2-0.3 parts, the defoamer is 0.2-0.3 parts, the expansion agent is 0.1-0.2 parts, the coagulant is 0.05-0.15 parts, the hollow fiber is 0.2-0.3 parts, the steel fiber is 1-2 parts, and the modified resin chelating agent is 2-5 parts.

[0007] Preferably, in parts by weight, the natural quartz sand of 40-70 mesh is 20 parts, the natural quartz sand of 70-100 mesh is 40 parts, the high alumina cement is 12 parts, the slag cement is 22 parts, the modified rubber powder is 2 parts, the thickener is 0.15 parts, the dispersant is 0.25 parts, the defoamer is 0.25 parts, the expansion agent is 0.15 parts, the coagulant is 0.1 parts, the hollow fiber is 0.25 parts, the steel fiber is 1.5 parts, and the modified resin chelating agent is 3.5 parts.

[0008] In addition, a roadbed quick repair method is provided, which uses the aforementioned reinforced cement concrete quick repair material as a repair material for repair; The following steps are involved: S100. Prepare repair material; S200. Select the damaged area to be repaired; S300. The surface of the repair area is washed and wetted; S400. Add water to the repair material and stir; S500. Spread the mixed repair material on the repair area; S600.Maintain after cutting expansion joints.

[0009] Preferably, the step S100 includes stirring different powders using a conical double-screw mixer, and after mixing for 10 minutes, the reinforced cement concrete quick-fix material is obtained.

[0010] Furthermore, the step S300 includes using a high-pressure air gun to remove dust from the surface of the repair area, and then using a concrete milling machine to roughen it, and laying a wire mesh; After completion, flush the surface of the repair area with water and keep the working surface fully moist until water seepage stops. Then use a high-pressure air gun to clean the surface water and spray the modified resin chelating agent.

[0011] Furthermore, in step S400, a mobile barrel-type high-speed mixer is used for mixing, the rotation speed is greater than 200 rpm, the amount of water added is 10% to 205 of the repair material, and the mixing is carried out for 3 minutes.

[0012] Furthermore, in the step S600, the curing is carried out at room temperature and is placed at room temperature for 1 to 2 hours.

[0013] During use, the present invention has the following beneficial effects: Mechanized construction is faster, has high strength, does not delaminate or crack, has a strong bond with the base layer and a long service life. It is especially used in repairing cement floors in smelting workshops. It also has certain heat resistance and explosion resistance, and can quickly resume production. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0015] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0017] Example 1 A reinforced cement concrete quick-repair material comprises aggregate, cement, modified rubber powder, thickener, dispersant, defoamer, expander, coagulant, retarder, hollow fiber, steel fiber and modified resin chelating agent.

[0018] Wherein, the aggregate includes 40-70 mesh natural quartz sand and 70-100 mesh natural quartz sand, and the cement includes high alumina cement and slag cement; In parts by weight, the natural quartz sand of 40-70 mesh is 20 parts, the natural quartz sand of 70-100 mesh is 40 parts, the high alumina cement is 12 parts, the slag cement is 22 parts, the modified rubber powder is 2 parts, the thickener is 0.15 parts, the dispersant is 0.25 parts, the defoamer is 0.25 parts, the expansion agent is 0.15 parts, the coagulant is 0.1 parts, the hollow fiber is 0.25 parts, the steel fiber is 1.5 parts, and the modified resin chelating agent is 3.5 parts.

[0019] A roadbed quick repair method, using the aforementioned reinforced cement concrete quick repair material as a repair material for repair; The following steps are involved: S100. Prepare repair material; S200. Select the damaged area to be repaired; S300. The surface of the repair area is washed and wetted; S400. Add water to the repair material and stir; S500. Spread the mixed repair material on the repair area; S600.Maintain after cutting expansion joints.

[0020] Wherein, the step S100 includes mixing different powders using a conical double-screw mixer, and after mixing for 10 minutes, the reinforced cement concrete quick-fix material is obtained.

[0021] Furthermore, the step S300 includes using a high-pressure air gun to remove dust from the surface of the repair area, then using a concrete milling machine to roughen the surface, and laying a wire mesh; After completion, flush the surface of the repair area with water and keep the working surface fully moist until water seepage stops. Then use a high-pressure air gun to clean the surface water and spray the modified resin chelating agent.

[0022] Furthermore, in step S400, a mobile barrel-type high-speed mixer is used for mixing, the rotation speed is greater than 200 rpm, the amount of water added is 10% to 20% of the repair material, and the mixing is carried out for 3 minutes.

[0023] Furthermore, in the step S600, the curing is performed at room temperature and is placed at room temperature for 1 to 2 hours.

[0024] Example 2 A reinforced cement concrete quick-repair material comprises aggregate, cement, modified rubber powder, thickener, dispersant, defoamer, expander, coagulant, retarder, hollow fiber, steel fiber and modified resin chelating agent.

[0025] Wherein, the aggregate includes 40-70 mesh natural quartz sand and 70-100 mesh natural quartz sand, and the cement includes high alumina cement and slag cement; In parts by weight, the natural quartz sand of 40-70 mesh is 15 parts, the natural quartz sand of 70-100 mesh is 35 parts, the high alumina cement is 10 parts, the slag cement is 20 parts, the modified rubber powder is 1.5 parts, the thickener is 0.1 parts, the dispersant is 0.2 parts, the defoamer is 0.2 parts, the expansion agent is 0.1 parts, the coagulant is 0.05 parts, the hollow fiber is 0.2 parts, the steel fiber is 1 parts, and the modified resin chelating agent is 2 parts.

[0026] A roadbed quick repair method, using the aforementioned reinforced cement concrete quick repair material as a repair material for repair; The following steps are involved: S100. Prepare repair material; S200. Select the damaged area to be repaired; S300. The surface of the repair area is washed and wetted; S400. Add water to the repair material and stir; S500. Spread the mixed repair material on the repair area; S600.Maintain after cutting expansion joints.

[0027] Wherein, the step S100 includes mixing different powders using a conical double-screw mixer, and after mixing for 10 minutes, the reinforced cement concrete quick-fix material is obtained.

[0028] Furthermore, the step S300 includes using a high-pressure air gun to remove dust from the surface of the repair area, then using a concrete milling machine to roughen the surface, and laying a wire mesh; After completion, flush the surface of the repair area with water and keep the working surface fully moist until water seepage stops. Then use a high-pressure air gun to clean the surface water and spray the modified resin chelating agent.

[0029] Furthermore, in step S400, a mobile barrel-type high-speed mixer is used for mixing, the rotation speed is greater than 200 rpm, the amount of water added is 10% to 20% of the repair material, and the mixing is carried out for 3 minutes.

[0030] Furthermore, in the step S600, the curing is performed at room temperature and is placed at room temperature for 1 to 2 hours.

[0031] Example 3 A reinforced cement concrete quick-repair material comprises aggregate, cement, modified rubber powder, thickener, dispersant, defoamer, expander, coagulant, retarder, hollow fiber, steel fiber and modified resin chelating agent.

[0032] Wherein, the aggregate includes 40-70 mesh natural quartz sand and 70-100 mesh natural quartz sand, and the cement includes high alumina cement and slag cement; In parts by weight, the natural quartz sand of 40-70 mesh is 25 parts, the natural quartz sand of 70-100 mesh is 45 parts, the high alumina cement is 15 parts, the slag cement is 25 parts, the modified rubber powder is 2.5 parts, the thickener is 0.2 parts, the dispersant is 0.3 parts, the defoamer is 0.3 parts, the expansion agent is 0.2 parts, the coagulant is 0.15 parts, the hollow fiber is 0.3 parts, the steel fiber is 2 parts, and the modified resin chelating agent is 5 parts.

[0033] A roadbed quick repair method, using the aforementioned reinforced cement concrete quick repair material as a repair material for repair; The following steps are involved: S100. Prepare repair material; S200. Select the damaged area to be repaired; S300. The surface of the repair area is washed and wetted; S400. Add water to the repair material and stir; S500. Spread the mixed repair material on the repair area; S600.Maintain after cutting expansion joints.

[0034] Wherein, the step S100 includes mixing different powders using a conical double-screw mixer, and after mixing for 10 minutes, the reinforced cement concrete quick-fix material is obtained.

[0035] Furthermore, the step S300 includes using a high-pressure air gun to remove dust from the surface of the repair area, then using a concrete milling machine to roughen the surface, and laying a wire mesh; After completion, flush the surface of the repair area with water and keep the working surface fully moist until water seepage stops. Then use a high-pressure air gun to clean the surface water and spray the modified resin chelating agent.

[0036] Furthermore, in step S400, a mobile barrel-type high-speed mixer is used for mixing, the rotation speed is greater than 200 rpm, the amount of water added is 10% to 20% of the repair material, and the mixing is carried out for 3 minutes.

[0037] Furthermore, in the step S600, the curing is performed at room temperature and is placed at room temperature for 1 to 2 hours.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reinforced cement concrete quick repair material, characterized in that: It includes aggregate, cement, modified rubber powder, thickener, dispersant, defoamer, expander, accelerator, retarder, hollow fiber, steel fiber and modified resin chelating agent.

2. A reinforced cement concrete quick repair material according to claim 1, characterized in that: The aggregate includes 40-70 mesh natural quartz sand and 70-100 mesh natural quartz sand, and the cement includes high alumina cement and slag cement; In parts by weight, the natural quartz sand of 40-70 mesh is 15-25 parts, the natural quartz sand of 70-100 mesh is 35-45 parts, the high alumina cement is 10-15 parts, the slag cement is 20-25 parts, the modified rubber powder is 1.5-2.5 parts, the thickener is 0.1-0.2 parts, the dispersant is 0.2-0.3 parts, the defoamer is 0.2-0.3 parts, the expansion agent is 0.1-0.2 parts, the coagulant is 0.05-0.15 parts, the hollow fiber is 0.2-0.3 parts, the steel fiber is 1-2 parts, and the modified resin chelating agent is 2-5 parts.

3. A reinforced cement concrete quick repair material according to claim 2, characterized in that: In parts by weight, the natural quartz sand of 40-70 mesh is 20 parts, the natural quartz sand of 70-100 mesh is 40 parts, the high alumina cement is 12 parts, the slag cement is 22 parts, the modified rubber powder is 2 parts, the thickener is 0.15 parts, the dispersant is 0.25 parts, the defoamer is 0.25 parts, the expansion agent is 0.15 parts, the coagulant is 0.1 parts, the hollow fiber is 0.25 parts, the steel fiber is 1.5 parts, and the modified resin chelating agent is 3.5 parts.

4. A method for rapid roadbed repair, characterized in that: The reinforced cement concrete quick repair material according to any one of claims 1 to 3 is used as a repair material for repair; The following steps are involved: S100. Prepare repair material; S200. Select the damaged area to be repaired; S300. The surface of the repair area is washed and wetted; S400. Add water to the repair material and stir; S500. Spread the mixed repair material on the repair area; S600.Maintain after cutting expansion joints.

5. A roadbed rapid repair method according to claim 4, characterized in that: The step S100 includes mixing different powders using a conical double-screw mixer. After mixing for 10 minutes, the reinforced cement concrete quick-fix material is obtained.

6. A method for rapid roadbed repair according to claim 4, characterized in that: The step S300 includes using a high-pressure air gun to remove dust from the surface of the repair area, then using a concrete milling machine to roughen it, and laying a wire mesh; After completion, flush the surface of the repair area with water and keep the working surface fully moist until there is no more water seepage. Then use a high-pressure air gun to clean the surface water and spray the modified resin chelating agent.

7. A roadbed rapid repair method according to claim 4, characterized in that: In the step S400, a mobile barrel-type high-speed mixer is used for mixing, the rotation speed is greater than 200 revolutions per minute, the amount of water added is 10% to 20% of the repair material, and the mixing is performed for 3 minutes.

8. A roadbed rapid repair method according to claim 4, characterized in that: In the step S600, the curing is performed at room temperature and is placed at room temperature for 1 to 2 hours.