阅读说明：本技术 一种混凝土用玄武岩纤维抗裂防水剂及其制备方法 (Basalt fiber anti-cracking waterproof agent for concrete and preparation method thereof ) 是由 艾阳东 陈文强 陈凤 于 2021-07-31 设计创作，主要内容包括：本发明提供一种混凝土用玄武岩纤维抗裂防水剂及其制备方法。所述混凝土用玄武岩纤维抗裂防水剂,通过如下重量份的原料制备而成：膨胀剂30-60份、玄武岩纤维20-40份、水化热抑制剂20-30份。本发明提供的混凝土用玄武岩纤维抗裂防水剂及其制备方法,通过将膨胀剂置入搅拌容器中,然后将粉碎后的玄武岩纤维置入在搅拌容器中,通过搅拌容器对搅拌容器中的膨胀剂和粉碎后的玄武岩纤维进行搅拌混合,随后再将水化热抑制剂置入搅拌容器中,通过搅拌容器对混合物与水化热抑制剂进行再次混合,制得抗裂防水剂,降低了混凝土水化温升速率,使用玄武岩纤维提高了混凝土的抗拉强度,增强了混泥土的耐久性和抗裂防渗性能,而且抗裂防水能力强、性能稳定。(The invention provides a basalt fiber anti-cracking waterproof agent for concrete and a preparation method thereof. The basalt fiber anti-cracking waterproof agent for concrete is prepared from the following raw materials in parts by weight: 30-60 parts of expanding agent, 20-40 parts of basalt fiber and 20-30 parts of hydration heat inhibitor. The invention provides a basalt fiber anti-cracking waterproof agent for concrete and a preparation method thereof.)

1. The basalt fiber anti-cracking waterproof agent for concrete is characterized by being prepared from the following raw materials in parts by weight:

30-60 parts of expanding agent, 20-40 parts of basalt fiber and 20-30 parts of hydration heat inhibitor.

2. The basalt fiber anti-cracking waterproof agent for concrete according to claim 1, which is prepared from the following raw materials in parts by weight: 50 parts of expanding agent, 30 parts of basalt fiber and 20 parts of hydration heat inhibitor.

3. The basalt fiber anti-cracking waterproof agent for concrete according to claim 1, which is prepared from the following raw materials in parts by weight: 40 parts of expanding agent, 35 parts of basalt fiber and 25 parts of hydration heat inhibitor.

4. The basalt fiber anti-cracking waterproof agent for concrete according to claim 1, wherein the swelling agent is prepared from the following raw materials in parts by weight: 35 parts of calcium sulphoaluminate, 10 parts of aluminum sulfate, 20 parts of NF-5 type naphthalene high-concentration high-efficiency water reducing agent, 20 parts of mineral ultrafine powder, 5 parts of calcium chloride, 6 parts of water retention material and 4 parts of sodium gluconate.

5. The basalt fiber anti-cracking waterproof agent for concrete according to claim 4, wherein the water-retaining material is one or two of methyl cellulose, hydroxypropyl methyl cellulose and hydroxyethyl methyl cellulose, and the mineral ultrafine powder is one or more of fly ash, silica fume and mineral powder.

6. A preparation method of a basalt fiber anti-cracking waterproof agent for concrete is characterized by comprising the following steps:

s1, placing the prepared basalt fibers into a pulverizer, and pulverizing the basalt fibers through the pulverizer;

s2, placing the expanding agent into a stirring container, placing the basalt fiber crushed in the step S1 into the stirring container, and stirring and mixing the expanding agent and the crushed basalt fiber in the stirring container through the stirring container;

and S3, after the stirring in the S2 is finished, putting the hydration heat inhibitor into the stirring container in the S2, and mixing the mixture in the stirring container in the S2 and the hydration heat inhibitor again through the stirring container to finally prepare the anti-cracking waterproof agent.

7. The method for preparing the basalt fiber anti-cracking waterproof agent for concrete according to claim 6, wherein the stirring time in S2 is 10-15min, the stirring rotation speed is 120-160r/min, the stirring time in S3 is 15-30min, the stirring rotation speed is 160-220r/min, and the stirring temperature in S3 is 30-50 ℃.

8. The preparation method of the basalt fiber anti-cracking waterproof agent for concrete according to claim 6, wherein a stirring container is required to be used in preparation of the S2 anti-cracking waterproof agent, the stirring container comprises a shell, a movable frame is fixedly connected between two sides of the inner wall of the shell, a sliding block is connected inside the movable frame in a sliding manner, a through hole is formed between the top and the bottom of the sliding block, openings are formed in the top and the bottom of the movable frame, and the openings are communicated with the inside of the movable frame.

9. The method for preparing the basalt fiber anti-cracking waterproof agent for concrete according to claim 8, wherein an operating rod is fixedly connected to one side of the sliding block, and one end of the operating rod penetrates through the shell and extends to the outside of the shell.

10. The preparation method of the basalt fiber anti-cracking waterproof agent for concrete according to claim 8, wherein a stirring shaft is rotatably connected to the top of the shell, a rotating handle is fixedly connected to the top end of the stirring shaft, a first bevel gear is fixedly connected to the outer surface of the top end of the stirring shaft, the bottom end of the stirring shaft penetrates through the shell and extends into the shell, an L-shaped frame is slidably connected to one side of the top of the shell, a motor is fixedly connected to the top of the L-shaped frame, a second bevel gear is fixedly connected to the output of the motor, the outer surface of the second bevel gear is meshed with the outer surface of the first bevel gear, a baffle is fixedly connected to the top of one side of the shell, a lead screw is connected to one side of the baffle in a threaded manner, and one end of the lead screw is rotatably connected to one side of the L-shaped frame.

Technical Field

The invention relates to the field of waterproof agents, in particular to a basalt fiber anti-cracking waterproof agent for concrete and a preparation method thereof.

Background

The crack-resistant water-proofing agent is also called antifreezing water-proofing agent, and is formed from antifreezing agent and water-proofing agent, and can be used for building underground military shelters in the period of two war. The water-proof concrete or water-proof mortar is mainly used for water-proof concrete or water-proof mortar engineering constructed in the environment with the daily lowest temperature of more than 15 ℃ below zero, wherein the main indexes of the water-proof mortar are good in strength, impermeability and expansion (crack resistance), and the aim of self water proofing of the concrete is fulfilled.

At present, the anti-cracking waterproof agent mainly solves the problem of penetration of concrete, but the existing anti-cracking waterproof agent has certain defects, such as the existing anti-cracking waterproof agent has the defects that the hydration temperature rise rate of concrete is higher, so that the tensile strength of the concrete is seriously reduced, the durability and the anti-cracking and anti-seepage performance of concrete are weakened, and the anti-cracking and waterproof capability is unstable.

Therefore, it is necessary to provide an anti-cracking waterproof agent for basalt fiber for concrete and a preparation method thereof to solve the above technical problems.

Disclosure of Invention

The invention provides an anti-cracking waterproof agent of basalt fibers for concrete and a preparation method thereof, which solve the problems that the tensile strength of the concrete is poor, and the durability and anti-cracking and anti-seepage performance of the concrete are weakened.

In order to solve the technical problems, the basalt fiber anti-cracking waterproof agent for concrete provided by the invention is prepared from the following raw materials in parts by weight:

30-60 parts of expanding agent, 20-40 parts of basalt fiber and 20-30 parts of hydration heat inhibitor.

The basalt fiber anti-cracking waterproof agent reduces the hydration temperature rise rate of concrete, improves the tensile strength of the concrete by using the basalt fiber, enhances the durability and anti-cracking and anti-seepage performance of concrete, and has strong anti-cracking and waterproof capabilities and stable performance;

basalt fiber: continuous fibers drawn from natural basalt. The basalt stone material is melted at 1450-1500 ℃, and then is drawn at high speed by a platinum rhodium alloy wire drawing bushing to form continuous fiber. The pure natural basalt fiber is generally brown in color and has metallic luster. The basalt fiber is a novel inorganic environment-friendly green high-performance fiber material and is composed of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, ferric oxide, titanium dioxide and the like. The basalt continuous fiber has high strength and also has various excellent performances of electrical insulation, corrosion resistance, high temperature resistance and the like;

in addition, the production process of the basalt fiber determines that the produced waste is less, the environmental pollution is less, and the product can be directly degraded in the environment after being discarded without any harm, so the basalt fiber is a real green and environment-friendly material. Basalt fibers are taken as one of four major fibers (carbon fibers, aramid fibers, ultra-high molecular weight polyethylene and basalt fibers) which are mainly developed in China, and industrial production is realized. The basalt continuous fiber has been widely applied in various aspects such as fiber reinforced composite materials, friction materials, shipbuilding materials, heat insulation materials, automobile industry, high-temperature filter fabrics, protection fields and the like.

Preferably, the composition is prepared from the following raw materials in parts by weight: 50 parts of expanding agent, 30 parts of basalt fiber and 20 parts of hydration heat inhibitor.

Preferably, the composition is prepared from the following raw materials in parts by weight: 40 parts of expanding agent, 35 parts of basalt fiber and 25 parts of hydration heat inhibitor.

Preferably, the expanding agent is prepared from the following raw materials in parts by weight: 35 parts of calcium sulphoaluminate, 10 parts of aluminum sulfate, 20 parts of NF-5 type naphthalene high-concentration high-efficiency water reducing agent, 20 parts of mineral ultrafine powder, 5 parts of calcium chloride, 6 parts of water retention material and 4 parts of sodium gluconate.

Preferably, the water-retaining material is one or two of methyl cellulose, hydroxypropyl methyl cellulose and hydroxyethyl methyl cellulose, and the mineral ultrafine powder is one or more of fly ash, silica fume and mineral powder.

A preparation method of a basalt fiber anti-cracking waterproof agent for concrete comprises the following steps:

s1, placing the prepared basalt fibers into a pulverizer, and pulverizing the basalt fibers through the pulverizer;

s2, placing the expanding agent into a stirring container, placing the basalt fiber crushed in the step S1 into the stirring container, and stirring and mixing the expanding agent and the crushed basalt fiber in the stirring container through the stirring container;

and S3, after the stirring in the S2 is finished, putting the hydration heat inhibitor into the stirring container in the S2, and mixing the mixture in the stirring container in the S2 and the hydration heat inhibitor again through the stirring container to finally prepare the anti-cracking waterproof agent.

Preferably, the stirring time in S2 is 10-15min, the stirring speed is 120-160r/min, the stirring time in S3 is 15-30min, the stirring speed is 160-220r/min, and the stirring temperature in S3 is 30-50 ℃.

The anti-cracking waterproof agent of S2 needs to use stirred vessel when preparing, stirred vessel includes the casing, fixedly connected with movable frame between the both sides of the inner wall of casing, the inside sliding connection of movable frame has the sliding block, the through-hole has been seted up between the top of sliding block and the bottom, the opening has all been seted up to the top and the bottom of movable frame, the opening all with the inside intercommunication of movable frame.

Preferably, an operating rod is fixedly connected to one side of the sliding block, and one end of the operating rod penetrates through the casing and extends to the outside of the casing.

Preferably, the top of casing rotates and is connected with the (mixing) shaft, the rotatory handle of (mixing) shaft top fixedly connected with, the outer fixed surface on the top of (mixing) shaft is connected with first bevel gear, the bottom of (mixing) shaft runs through the casing and extends to the inside of casing, one side sliding connection at the top of casing has L type frame, the top fixedly connected with motor of L type frame, fixedly connected with second bevel gear is assisted in the output of motor, the surface of second bevel gear with the surface engagement of first bevel gear, the top fixedly connected with baffle of one side of casing, one side threaded connection of baffle has the lead screw, the one end of lead screw rotate connect in one side of L type frame.

Compared with the prior art, the basalt fiber anti-cracking waterproof agent for concrete and the preparation method thereof provided by the invention have the following beneficial effects:

the invention provides an anti-cracking waterproof agent for basalt fibers for concrete and a preparation method thereof, wherein the prepared basalt fibers are placed into a grinder, and are ground by the grinder; and then placing the expanding agent into a stirring container, then placing the crushed basalt fiber into the stirring container, stirring and mixing the expanding agent in the stirring container and the crushed basalt fiber through the stirring container, then placing the hydration heat inhibitor into the stirring container, and mixing the mixture and the hydration heat inhibitor again through the stirring container to prepare the anti-cracking waterproof agent, so that the hydration temperature rise rate of the concrete is reduced, the tensile strength of the concrete is improved by using the basalt fiber, the durability and the anti-cracking and anti-seepage performance of the concrete are enhanced, and the anti-cracking waterproof agent has strong anti-cracking waterproof capability and stable performance.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a mixing vessel according to the present invention;

fig. 2 is a top view of the movable frame shown in fig. 1.

Reference numbers in the figures: 1. the device comprises a shell, 2, a movable frame, 3, a sliding block, 4, a through hole, 5, an opening, 6, an operating rod, 7, a stirring shaft, 8, a rotating handle, 9, a first bevel gear, 10, an L-shaped frame, 11, a motor, 12, a second bevel gear, 13, a baffle, 14 and a screw rod.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Please refer to fig. 1 and fig. 2, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a stirring container according to the present invention; fig. 2 is a top view of the movable frame shown in fig. 1. The basalt fiber anti-cracking waterproof agent for concrete is prepared from the following raw materials in parts by weight:

30-60 parts of expanding agent, 20-40 parts of basalt fiber and 20-30 parts of hydration heat inhibitor.

The basalt fiber anti-cracking waterproof agent reduces the hydration temperature rise rate of concrete, improves the tensile strength of the concrete by using the basalt fiber, enhances the durability and anti-cracking and anti-seepage performance of concrete, and has strong anti-cracking and waterproof capabilities and stable performance;

basalt fiber: continuous fibers drawn from natural basalt. The basalt stone material is melted at 1450-1500 ℃, and then is drawn at high speed by a platinum rhodium alloy wire drawing bushing to form continuous fiber. The pure natural basalt fiber is generally brown in color and has metallic luster. The basalt fiber is a novel inorganic environment-friendly green high-performance fiber material and is composed of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, ferric oxide, titanium dioxide and the like. The basalt continuous fiber has high strength and also has various excellent performances of electrical insulation, corrosion resistance, high temperature resistance and the like;

in addition, the production process of the basalt fiber determines that the produced waste is less, the environmental pollution is less, and the product can be directly degraded in the environment after being discarded without any harm, so the basalt fiber is a real green and environment-friendly material. Basalt fibers are taken as one of four major fibers (carbon fibers, aramid fibers, ultra-high molecular weight polyethylene and basalt fibers) which are mainly developed in China, and industrial production is realized. The basalt continuous fiber has been widely applied in various aspects such as fiber reinforced composite materials, friction materials, shipbuilding materials, heat insulation materials, automobile industry, high-temperature filter fabrics, protection fields and the like.

The compound fertilizer is prepared from the following raw materials in parts by weight: 50 parts of expanding agent, 30 parts of basalt fiber and 20 parts of hydration heat inhibitor.

The compound fertilizer is prepared from the following raw materials in parts by weight: 40 parts of expanding agent, 35 parts of basalt fiber and 25 parts of hydration heat inhibitor.

The expanding agent is prepared from the following raw materials in parts by weight: 35 parts of calcium sulphoaluminate, 10 parts of aluminum sulfate, 20 parts of NF-5 type naphthalene high-concentration high-efficiency water reducing agent, 20 parts of mineral ultrafine powder, 5 parts of calcium chloride, 6 parts of water retention material and 4 parts of sodium gluconate.

The water-retaining material is one or two of methyl cellulose, hydroxypropyl methyl cellulose and hydroxyethyl methyl cellulose, and the mineral ultrafine powder is one or more of fly ash, silica fume and mineral powder.

A preparation method of a basalt fiber anti-cracking waterproof agent for concrete comprises the following steps:

s1, placing the prepared basalt fibers into a pulverizer, and pulverizing the basalt fibers through the pulverizer;

s2, placing the expanding agent into a stirring container, placing the basalt fiber crushed in the step S1 into the stirring container, and stirring and mixing the expanding agent and the crushed basalt fiber in the stirring container through the stirring container;

and S3, after the stirring in the S2 is finished, putting the hydration heat inhibitor into the stirring container in the S2, and mixing the mixture in the stirring container in the S2 and the hydration heat inhibitor again through the stirring container to finally prepare the anti-cracking waterproof agent.

The stirring time in the S2 is 10-15min, the stirring rotating speed is 120-160r/min, the stirring time in the S3 is 15-30min, the stirring rotating speed is 160-220r/min, and the stirring temperature in the S3 is 30-50 ℃.

When the S2 anti-cracking waterproof agent is prepared, a stirring container is required, the stirring container comprises a shell 1, a movable frame 2 is fixedly connected between two sides of the inner wall of the shell 1, a sliding block 3 is connected inside the movable frame 2 in a sliding manner, a through hole 4 is formed between the top and the bottom of the sliding block 3, openings 5 are formed in the top and the bottom of the movable frame 2, and the openings 5 are communicated with the inside of the movable frame 2;

the bottom of casing 1 is provided with the discharge tube, through the position of opening 5, and the waterproofing agent of being convenient for stir falls the bottom of casing 1, can discharge through the discharge tube at last.

An operating rod 6 is fixedly connected to one side of the sliding block 3, and one end of the operating rod 6 penetrates through the shell 1 and extends to the outside of the shell 1;

through the setting of action bars 6, be convenient for drive sliding block 3 and carry out the side-to-side movement, and then make the sliding block on 4 and the opening 5 position coincide, the whereabouts of the material of being convenient for.

The top of the shell 1 is rotatably connected with a stirring shaft 7, the top end of the stirring shaft 7 is fixedly connected with a rotating handle 8, the outer surface of the top end of the stirring shaft 7 is fixedly connected with a first bevel gear 9, the bottom end of the stirring shaft 7 penetrates through the shell 1 and extends into the shell 1, one side of the top of the shell 1 is slidably connected with an L-shaped frame 10, the top of the L-shaped frame 10 is fixedly connected with a motor 11, the output of the motor 11 is secondarily and fixedly connected with a second bevel gear 12, the outer surface of the second bevel gear 12 is meshed with the outer surface of the first bevel gear 9, the top of one side of the shell 1 is fixedly connected with a baffle 13, one side of the baffle 13 is in threaded connection with a screw rod 14, and one end of the screw rod 14 is rotatably connected to one side of the L-shaped frame 10;

through the start of motor 11, can drive first bevel gear 9 and second bevel gear 12 and rotate, and then can drive (mixing) shaft 7 and rotate, rotation through (mixing) shaft 7, can stir the raw materials, prepare, and the rotation through lead screw 14, can drive L type frame 10 side-to-side movement, and then drive motor 11 and second bevel gear 12 side-to-side movement, whether the staff's manual control of being convenient for first bevel gear 9 and second bevel gear 12 mesh, the staff of being convenient for carries out (mixing) shaft 7 and rotates the stirring, effectual reduction is electronic and manual to combine, the use that does not have the power supply environment has been satisfied.

The working principle of the preparation method of the basalt fiber anti-cracking waterproof agent for concrete provided by the invention is as follows:

the prepared basalt fiber is placed into a crusher, and the basalt fiber is crushed by the crusher; then placing the expanding agent into a stirring container, placing the crushed basalt fiber into the stirring container, and stirring and mixing the expanding agent in the stirring container and the crushed basalt fiber through the stirring container, wherein the stirring time is 10-15min, and the stirring rotating speed is 120-160 r/min;

and after stirring, putting the hydration heat inhibitor into a stirring container, and mixing the mixture and the hydration heat inhibitor again through the stirring container, wherein the stirring time is 15-30min, the stirring speed is 160-220r/min, and the stirring temperature in S3 is 30-50 ℃ to finally prepare the anti-cracking waterproof agent.

Compared with the prior art, the basalt fiber anti-cracking waterproof agent for concrete and the preparation method thereof provided by the invention have the following beneficial effects:

the prepared basalt fiber is placed into a crusher, and the basalt fiber is crushed by the crusher; and then placing the expanding agent into a stirring container, then placing the crushed basalt fiber into the stirring container, stirring and mixing the expanding agent in the stirring container and the crushed basalt fiber through the stirring container, then placing the hydration heat inhibitor into the stirring container, and mixing the mixture and the hydration heat inhibitor again through the stirring container to prepare the anti-cracking waterproof agent, so that the hydration temperature rise rate of the concrete is reduced, the tensile strength of the concrete is improved by using the basalt fiber, the durability and the anti-cracking and anti-seepage performance of the concrete are enhanced, and the anti-cracking waterproof agent has strong anti-cracking waterproof capability and stable performance.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.