阅读说明：本技术 一种建筑施工用速干增强填缝材料及其制备方法 (Quick-drying reinforced joint filling material for building construction and preparation method thereof ) 是由 郑西 于 2019-11-29 设计创作，主要内容包括：本发明提供一种建筑施工用速干增强填缝材料及其制备方法,涉及建筑材料领域,包括以下重量份数的组成成分制成：硅酸盐水泥40-50份、铝酸盐水泥20-30份、苯乙烯-丁二烯-苯乙烯嵌段共聚物2-8份、乳化沥青10-16份、UEA膨胀剂1-3份、橡胶颗粒5-10份、聚醚多元醇1-5份、改性磷石膏4-8份、石英砂20-25份、云母粉10-20份、羧乙基纤维素醚1-3份、纳米胶粉2-5份、减水剂1-3份、抗碱剂1-3份、色料1-3份,本发明填缝材料各项力学性能优越,固化速度快,适合建筑施工中大规模使用。(The invention provides a quick-drying reinforced joint filling material for building construction and a preparation method thereof, which relate to the field of building materials and comprise the following components in parts by weight: 40-50 parts of silicate cement, 20-30 parts of aluminate cement, 2-8 parts of styrene-butadiene-styrene block copolymer, 10-16 parts of emulsified asphalt, 1-3 parts of UEA expanding agent, 5-10 parts of rubber particles, 1-5 parts of polyether polyol, 4-8 parts of modified phosphogypsum, 20-25 parts of quartz sand, 10-20 parts of mica powder, 1-3 parts of carboxyethyl cellulose ether, 2-5 parts of nano rubber powder, 1-3 parts of water reducing agent, 1-3 parts of alkali-resistant agent and 1-3 parts of pigment.)

1. The quick-drying reinforced joint filling material for building construction is characterized by comprising the following components in parts by weight: 40-50 parts of silicate cement, 20-30 parts of aluminate cement, 2-8 parts of styrene-butadiene-styrene block copolymer, 10-16 parts of emulsified asphalt, 1-3 parts of UEA expanding agent, 5-10 parts of rubber particles, 1-5 parts of polyether polyol, 4-8 parts of modified phosphogypsum, 20-25 parts of quartz sand, 10-20 parts of mica powder, 1-3 parts of carboxyethyl cellulose ether, 2-5 parts of nano rubber powder, 1-3 parts of water reducing agent, 1-3 parts of alkali-resistant agent and 1-3 parts of pigment.

2. The quick-drying reinforced joint filling material for building construction as claimed in claim 1, which is prepared from the following components in parts by weight: 42 parts of silicate cement, 25 parts of aluminate cement, 6 parts of styrene-butadiene-styrene block copolymer, 13 parts of emulsified asphalt, 2 parts of UEA expanding agent, 6 parts of rubber particles, 2 parts of polyether polyol, 5 parts of modified phosphogypsum, 22 parts of quartz sand, 15 parts of mica powder, 3 parts of carboxyethyl cellulose ether, 5 parts of nano rubber powder, 1 part of water reducing agent, 1 part of alkali-resistant agent and 2 parts of pigment.

3. The quick-drying reinforced joint filling material for building construction as claimed in claim 1, which is prepared from the following components in parts by weight: 45 parts of silicate cement, 30 parts of aluminate cement, 4 parts of styrene-butadiene-styrene block copolymer, 11 parts of emulsified asphalt, 3 parts of UEA expanding agent, 6 parts of rubber particles, 2 parts of polyether polyol, 5 parts of modified phosphogypsum, 24 parts of quartz sand, 15 parts of mica powder, 2 parts of carboxyethyl cellulose ether, 4 parts of nano rubber powder, 3 parts of water reducing agent, 2 parts of alkali resisting agent and 3 parts of pigment.

4. The quick-drying reinforced joint filling material for building construction as claimed in claim 1, wherein the preparation method of the emulsified asphalt comprises: adding sodium bentonite, a slow-breaking slow-setting asphalt emulsifier BH-MM, carboxymethyl cellulose and cellulose ether into water, heating to 50-65 ℃, stirring at 400-.

5. The quick-drying reinforced joint filling material for building construction as claimed in claim 1, wherein the rubber particles have a particle size of 3-6 mm.

6. The quick-drying reinforced joint filling material for building construction according to claim 1, wherein the preparation method of the modified phosphogypsum comprises the following steps: mixing and crushing phosphogypsum, carbide slag and fly ash, adding water, heating to 60-80 ℃, stirring for 18-25h, filtering, molding into blocks, putting into a steam curing device, performing steam curing under the pressure of 0.8-1.2MPa for 2-5h, putting into an oven, drying at 120-150 ℃, ball-milling into powder, and sieving with a 200-mesh sieve.

7. The quick-drying reinforced joint filling material for building construction according to claim 1, wherein the water reducing agent is a sulfamate-based high-efficiency water reducing agent or a fatty acid-based high-efficiency water reducing agent.

8. The quick-drying reinforced joint filling material for building construction as claimed in claim 1, wherein the alkali-resistant agent is formed by mixing volcanic ash and mesoporous silica according to a mass ratio of 1-3: 1.

9. The quick-drying reinforced joint filling material for building construction according to any one of claims 1 to 8, wherein the preparation method comprises the following steps:

(1) weighing aluminate cement and an alkali-resistant agent in proportion, ball-milling and packaging to obtain a material A;

(2) stirring and uniformly mixing the emulsified asphalt and the styrene-butadiene-styrene segmented copolymer, and packaging to obtain a material B;

(3) mixing and ball-milling Portland cement, UEA expanding agent, rubber particles, polyether polyol, modified phosphogypsum, quartz sand, mica powder, carboxyethyl cellulose ether, nano rubber powder, water reducing agent and pigment, and packaging to obtain material C.

10. The quick-drying reinforced joint filling material for building construction as claimed in claim 9, wherein the using method is:

and mixing the material B and the material C, adding a proper amount of water at a speed of 50-80r/min, stirring for 10-18min, adding the material A, stirring for 3-5min at a speed of 600r/min 400-.

Technical Field

The invention relates to the field of building materials, in particular to a quick-drying reinforced joint filling material for building construction and a preparation method thereof.

Background

The wall and pavement often have cracks to be filled in the construction process of buildings, joint filling materials are usually adopted for joint filling treatment, the most commonly used joint filling materials in China at present are polyurethane joint filling materials and asphalt joint filling materials, wherein the polyurethane joint filling materials have the advantages of excellent water tightness, air tightness, high elasticity, adhesion, durability and weather resistance, can withstand stretching, compression and vibration for a long time, have strong adhesion, can withstand repeated stretching and compression caused by thermal expansion and cold contraction at joints, are not damaged, are convenient in construction method and the like, are widely applied, but have poor high temperature resistance, are easy to melt at high temperature for a long time and have higher price, but both the traditional polyurethane joint filling glue and the polyurethane joint filling glue modified by organic silicon are crosslinked by NCO bonds which are easy to react with active hydrogen, the isocyanate-terminated polyurethane prepolymer can be cured to release carbon dioxide gas, so that a glue layer is foamed, the service life of the polyurethane joint sealing material is seriously influenced, and particularly the construction of the polyurethane joint sealing material under the condition of rain and fog weather is influenced. In addition, the isocyanate-terminated polyurethane joint sealing adhesive uses methylene bis-o-chloroaniline as a cross-linking agent, the substance is determined to have carcinogenic effect on human bodies, although the asphalt joint sealing material is low in price, the construction process is complex, the asphalt joint sealing material can be used after being heated, the aging resistance is poor, the service life is short, and the asphalt joint sealing material is still the main joint sealing material at present.

Chinese patent CN101418127B discloses a pavement joint sealing material, which comprises the following components: 65 to 85 percent of petroleum asphalt; 9% -18% of extract oil; 6 to 17 percent of styrene-butadiene-styrene block copolymer, and the preparation method comprises the following steps: heating asphalt to 100-200 ℃, adding extract oil and a styrene-butadiene-styrene block copolymer, keeping the preparation temperature at 160-180 ℃, and shearing at a shearing speed of 3500-4500 r/min for 35-90 min until the mixture is uniformly mixed to obtain the pavement joint filling material. Is characterized in that: the invention uses the extract oil, the styrene-butadiene-styrene segmented copolymer and the petroleum asphalt to synergistically improve the high and low temperature resistance, but lacks the reinforcing filler and has poor mechanical property.

Chinese patent CN105294034A discloses a joint filling material for building exterior walls, which comprises the following components in parts by weight: 100-200 parts of cement, 100-200 parts of fly ash, 100-200 parts of construction waste powder, 100-200 parts of lime powder, 50-70 parts of calcium carbonate, 70-100 parts of sintered balls, 80-100 parts of mineral powder, 150 parts of iron powder, 10-15 parts of antioxidant, 10-15 parts of water reducer, 30-50 parts of quartz powder and 250 parts of water 200; the joint filling material can be effectively attached between ceramic tiles to seal gaps of the ceramic tiles, and can effectively avoid the conditions of cracking, falling and the like after sealing is finished, and avoid the conditions of ceramic tiles falling and the like caused by the permeation of water into a wall body.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a quick-drying reinforced joint filling material for building construction and a preparation method thereof.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

a quick-drying reinforced joint filling material for building construction is prepared from the following components in parts by weight: 40-50 parts of silicate cement, 20-30 parts of aluminate cement, 2-8 parts of styrene-butadiene-styrene block copolymer, 10-16 parts of emulsified asphalt, 1-3 parts of UEA expanding agent, 5-10 parts of rubber particles, 1-5 parts of polyether polyol, 4-8 parts of modified phosphogypsum, 20-25 parts of quartz sand, 10-20 parts of mica powder, 1-3 parts of carboxyethyl cellulose ether, 2-5 parts of nano rubber powder, 1-3 parts of water reducing agent, 1-3 parts of alkali-resistant agent and 1-3 parts of pigment.

Preferably, the composition is prepared from the following components in parts by weight: 42 parts of silicate cement, 25 parts of aluminate cement, 6 parts of styrene-butadiene-styrene block copolymer, 13 parts of emulsified asphalt, 2 parts of UEA expanding agent, 6 parts of rubber particles, 2 parts of polyether polyol, 5 parts of modified phosphogypsum, 22 parts of quartz sand, 15 parts of mica powder, 3 parts of carboxyethyl cellulose ether, 5 parts of nano rubber powder, 1 part of water reducing agent, 1 part of alkali-resistant agent and 2 parts of pigment.

Preferably, the composition is prepared from the following components in parts by weight: 45 parts of silicate cement, 30 parts of aluminate cement, 4 parts of styrene-butadiene-styrene block copolymer, 11 parts of emulsified asphalt, 3 parts of UEA expanding agent, 6 parts of rubber particles, 2 parts of polyether polyol, 5 parts of modified phosphogypsum, 24 parts of quartz sand, 15 parts of mica powder, 2 parts of carboxyethyl cellulose ether, 4 parts of nano rubber powder, 3 parts of water reducing agent, 2 parts of alkali resisting agent and 3 parts of pigment.

Preferably, the preparation method of the emulsified asphalt comprises the following steps: adding sodium bentonite, a slow-breaking slow-setting asphalt emulsifier BH-MM, carboxymethyl cellulose and cellulose ether into water, heating to 50-65 ℃, stirring at 400-.

Preferably, the rubber particles have a particle size of 3 to 6 mm.

Preferably, the preparation method of the modified phosphogypsum comprises the following steps: mixing and crushing phosphogypsum, carbide slag and fly ash, adding water, heating to 60-80 ℃, stirring for 18-25h, filtering, molding into blocks, putting into a steam curing device, performing steam curing under the pressure of 0.8-1.2MPa for 2-5h, putting into an oven, drying at 120-150 ℃, ball-milling into powder, and sieving with a 200-mesh sieve.

Preferably, the water reducing agent is a sulfamate-based high-efficiency water reducing agent or a fatty acid-based high-efficiency water reducing agent.

Preferably, the alkali-resistant agent is formed by mixing volcanic ash and mesoporous silica according to the mass ratio of 1-3: 1.

The preparation method of the quick-drying reinforced joint filling material for building construction comprises the following steps:

(1) weighing aluminate cement and an alkali-resistant agent in proportion, ball-milling and packaging to obtain a material A;

(2) stirring and uniformly mixing the emulsified asphalt and the styrene-butadiene-styrene segmented copolymer, and packaging to obtain a material B;

(3) mixing and ball-milling Portland cement, UEA expanding agent, rubber particles, polyether polyol, modified phosphogypsum, quartz sand, mica powder, carboxyethyl cellulose ether, nano rubber powder, water reducing agent and pigment, and packaging to obtain material C.

The quick-drying reinforced joint filling material for building construction comprises the following usage method:

and mixing the material B and the material C, adding a proper amount of water at a speed of 50-80r/min, stirring for 10-18min, adding the material A, stirring for 3-5min at a speed of 600r/min 400-.

(III) advantageous effects

The invention provides a quick-drying reinforced joint filling material for building construction and a preparation method thereof, and the quick-drying reinforced joint filling material has the following beneficial effects:

generally speaking, the silicate cement and the aluminate cement can not be mixed together, because the aluminate cement is easy to be instantly condensed, and because the high-alkalinity hydrated calcium aluminate is generated, the internal structure of the cement is easy to generate holes to cause cracking, and the invention utilizes the characteristic, utilizes the alkali resistant agent compounded by the volcanic ash and the mesoporous silicon dioxide to reduce the damage of the alkalinity of the hydrated calcium aluminate to the structure of the filling material, and fully utilizes the characteristic that the curing of the filling material can be accelerated, experiments prove that the compressive strength of the filling material can reach more than 90 percent after 3d filling, thereby shortening the construction progress delayed by the curing, and the emulsified asphalt can be used as the bonding component of the cement and the filling material, improves the mechanical strength of the filling material, can also be used as the sealing component to play a role of film forming and dewatering, and can be used at normal temperature, the styrene-butadiene-styrene segmented copolymer is used as a modifier to modify emulsified asphalt, so that the aging resistance and fatigue resistance of the joint filling material are enhanced, the sodium bentonite in the emulsified asphalt can absorb water, disintegrate and disperse into tiny particles, and the tiny particles are distributed on an oil-water interface through physical or chemical adsorption so as to ensure the storage stability of the emulsified asphalt, and the suspension performance of the emulsified asphalt can improve the dispersibility of the emulsified asphalt in silicate cement and aluminate cement, so that the joint filling material is more uniform and compact.

Detailed Description

In order to make the objects, 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 with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.