CN108529982B - Bacterial cellulose reinforced high-elastic-modulus mortar for fabricated building and preparation method thereof - Google Patents

Bacterial cellulose reinforced high-elastic-modulus mortar for fabricated building and preparation method thereof Download PDF

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CN108529982B
CN108529982B CN201810476188.5A CN201810476188A CN108529982B CN 108529982 B CN108529982 B CN 108529982B CN 201810476188 A CN201810476188 A CN 201810476188A CN 108529982 B CN108529982 B CN 108529982B
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bacterial cellulose
porous
entraining agent
elastic modulus
adsorbing
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CN108529982A (en
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蒋晓燕
汤薇
洪峰
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Zhejiang General Mortar Research Institute
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1055—Coating or impregnating with inorganic materials
    • C04B20/1074—Silicates, e.g. glass
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention provides a bacterial cellulose reinforced high-elastic modulus mortar for an assembly type building and a preparation method thereof, the high-elastic modulus mortar comprises portland cement, yellow sand, particle filler for adsorbing an air entraining agent, bacterial cellulose and water, wherein one or more of porous regeneration building particles, porous molecular sieves or porous metal oxides for adsorbing the air entraining agent are coated by a polymer, and the specific preparation process comprises the following steps: crushing dried bacterial cellulose, adding the crushed bacterial cellulose into an acetic acid aqueous solution, adding sodium carboxymethyl cellulose, and performing ultrasonic dispersion uniformly to obtain a bacterial cellulose suspension; adding an air entraining agent into a solvent, uniformly mixing, adding a porous particle material, slowly stirring, adding a polymer, uniformly stirring and coating to obtain a particle filler solution for adsorbing the air entraining agent; uniformly mixing portland cement, yellow sand, a particle filler solution for adsorbing an air entraining agent and a bacterial cellulose suspension, adding a water reducing agent, and uniformly stirring to obtain the bacterial cellulose reinforced high elastic modulus mortar for the fabricated building.

Description

Bacterial cellulose reinforced high-elastic-modulus mortar for fabricated building and preparation method thereof
Technical Field
The invention belongs to the technical field of mortar materials for fabricated buildings, and particularly relates to bacterial cellulose-reinforced high-elastic-modulus mortar for fabricated buildings and a preparation method thereof.
Background
Along with the development of the country and the improvement of the living conditions of people, the total energy consumption is continuously improved, and the energy conservation is more and more important for realizing the sustainable development of China. The fabricated building is a production mode integrating the technologies of standardized design, factory production, fabricated construction, integrated decoration, informatization management, intelligent application and the like, and is a building product formed by prefabricating components, parts and materials of the building in a factory, transporting the prefabricated components, parts and materials to a construction site for installation and finally connecting the prefabricated components, parts and materials in a mode of grouting anchors or post-pouring concrete. Compared with the traditional cast-in-place construction mode, the assembly type building construction mode has the advantages of shortening the construction period, reducing the field labor force, improving the building quality and the like, and accords with the green development direction of China, but the assembly type building in China belongs to the initial development stage, is not mature in the aspects of technology and management, and has a large development space.
The mortar for the prefabricated building directly influences the mechanical property, the heat resistance, the sound insulation and the like of the prefabricated building, so that the research on the special high-performance mortar for the prefabricated building is necessary. The high-strength inorganic thermal insulation mortar disclosed in Chinese patent CN 103304210B comprises expanded and vitrified micro bubbles, ordinary portland cement, fly ash, sierozem powder, desulfurized gypsum, special glue powder for thermal insulation mortar, hydroxypropyl methyl cellulose ether and polypropylene fiber, wherein the polypropylene fiber is composed of 200-plus 325-mesh polypropylene fiber powder and 6-10mm long polypropylene fiber. The preparation and application of the green, environment-friendly, high-elastic and anti-cracking pouring mortar for the fabricated building disclosed in the Chinese patent CN 107572905A are characterized in that rubber powder and sodium-based nano attapulgite are used for modifying asphalt to obtain a nano modified asphalt suspension, then an emulsifier and hydrochloric acid are added for regulation to prepare nano modified emulsified asphalt, and the nano modified emulsified asphalt is mixed with cement, fly ash, construction waste, river sand, a retarder, an expanding agent, a high-efficiency water reducing agent, a stabilizer and water to obtain the high-elastic and anti-cracking pouring mortar for the fabricated building. The method utilizes the rubber to improve the elastic deformation capacity of the mortar, and utilizes the attapulgite to increase the binding force between the rubber and the asphalt, so that the prepared mortar has the characteristics of high strength, high elasticity and high durability, and is suitable for being applied to the joints of building plates. As is clear from the above prior art, the mechanical properties of the mortar can be improved by adding materials such as inorganic substances, polymer fibers, rubber, etc.
Disclosure of Invention
The invention aims to solve the technical problem of providing bacterial cellulose reinforced high-elastic modulus mortar for an assembly type building and a preparation method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a bacterial cellulose reinforced assembly type high elastic modulus mortar for building, bacterial cellulose reinforced assembly type high elastic modulus mortar for building includes portland cement, yellow sand, the granule filler, bacterial cellulose and the water of adsorbing the air-entraining agent, the granule filler of adsorbing the air-entraining agent is for adsorbing the porous granule of air-entraining agent with the polymer cladding, the porous granule is in one or several kinds among porous regeneration building granule, porous molecular sieve or porous metal oxide.
Preferably, the preparation method of the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building comprises the following steps:
(1) crushing dried bacterial cellulose to 50-100 mu m, then adding the crushed bacterial cellulose into an acetic acid aqueous solution, adding sodium carboxymethyl cellulose, and performing ultrasonic dispersion uniformly to obtain a bacterial cellulose suspension;
(2) adding an air entraining agent into a solvent, uniformly mixing, adding a porous granular material, slowly stirring for 1-2h, adding a polymer, uniformly stirring and coating to obtain a granular filler solution for adsorbing the air entraining agent;
(3) and (3) uniformly mixing the portland cement, the yellow sand, the particle filler solution for adsorbing the air entraining agent prepared in the step (2) and the bacterial cellulose suspension prepared in the step (1), adding a water reducing agent, and uniformly stirring to obtain the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building.
Preferably, in the step (1), the power of ultrasonic dispersion is 20-30kHz, and the time is 20-30 min.
Preferably, in the step (1), the content of the sodium carboxymethyl cellulose in the bacterial cellulose suspension is 0.6-0.75%, and the content of the bacterial cellulose is 12-18%.
Preferably, in the step (2), the air-entraining agent is triterpene saponin or alkyl sulfonate.
Preferably, in the step (2), the porous particles are one or more of porous regenerated building particles, porous molecular sieves or porous metal oxides, the mass ratio of 0.1-1mm, 5-20mm and 30-40mm in the porous particles is 1:3-5:1-2, and the pore size of the porous particle material is 80-300 μm.
Preferably, in the step (2), the rotation speed of slow stirring is 50-100r/min, the rotation speed of uniform stirring is 5000-12000r/min, and the time is 5-20 min.
Preferably, in the step (2), the content of the air-entraining agent in the particulate filler for adsorbing the air-entraining agent is 8-12%, the content of the polymer is 3-7%, and the polymer is epoxy resin.
Preferably, in the step (3), the water reducing agent is a naphthalene-based superplasticizer.
Preferably, in the step (3), the mass ratio of the portland cement, the yellow sand, the particulate filler for adsorbing the air-entraining agent, the bacterial cellulose, the water reducing agent and the water in the bacterial cellulose-reinforced assembly-type high-elastic-modulus mortar for the building is 1500-: 1000-1500:300-500:15-45:700-750.
Compared with the prior art, the invention has the following beneficial effects:
(1) the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building comprises portland cement, yellow sand, particle fillers for absorbing an air-entraining agent, bacterial cellulose and water, wherein the porous regenerated building particles, porous molecular sieves or porous metal oxides for absorbing the air-entraining agent are coated by the bacterial cellulose and polymers and used as modifiers, the modifiers are added into the portland cement, the yellow sand and the water, the particle fillers for absorbing the air-entraining agent are one or more of the porous regenerated building particles, the porous molecular sieves or the porous metal oxides for absorbing the air-entraining agent, the porous regenerated building particles, the porous molecular sieves or the porous metal oxides for absorbing the air-entraining agent are coated by the polymers, the air-entraining agent is firstly absorbed into the pores of the porous particles and then coated by the polymers by controlling the particle size range, the weight ratio and the pore diameter of the porous particles, the air-entraining agent is prevented from being mixed unevenly, the mechanical property of the mortar is prevented from being influenced, and the unfixed agents, the three-dimensional network structure of the bacterial cellulose is bonded and solidified, compared with the fiber, the bacterial cellulose has smaller particle size, the three-dimensional network structure is easier to form, and in the preparation and stirring process of the mortar, the air-entraining agent in the porous particles can be slowly released from the holes, so that the three-dimensional network of the bacterial cellulose on the periphery is further reinforced, and the mechanical property of the assembled building mortar is improved.
(2) The preparation method is simple, the triterpene saponin or the alkyl sulfonate is selected as the adhesive, the fluidity of the mortar can be obviously improved, the cohesiveness is increased, the bacterial cellulose has more branches and is thinner compared with the traditional cellulose, and a more compact network structure is favorably formed, so that the prepared mortar for the assembly type building has excellent mechanical property, has the characteristics of high strength, high elasticity, crack resistance and good durability, is green and environment-friendly, has long service life, and is favorable for improving the comprehensive performance of the assembly type building material.
Detailed Description
The present invention will be described in detail with reference to specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
Example 1:
(1) pulverizing dried bacterial cellulose to 50-100 μm, adding into acetic acid water solution, adding sodium carboxymethylcellulose, and ultrasonically dispersing at 20kHz power for 20min to be uniform to obtain bacterial cellulose suspension, wherein the content of sodium carboxymethylcellulose in the bacterial cellulose suspension is 0.6%, and the content of bacterial cellulose is 12%.
(2) Adding triterpenoid saponin or alkyl sulfonate into a solvent, uniformly mixing, adding 0.1-1mm porous metal oxide, 5-20mm porous molecular sieve and 30-40mm porous regenerated building particles in a mass ratio of 1:3:1, slowly stirring for 1-2h at a speed of 50r/min, adding an epoxy resin polymer, uniformly stirring at a rotating speed of 5000r/min, and coating for 5min to obtain a particle filler solution for adsorbing an air entraining agent, wherein the content of the air entraining agent in the particle filler for adsorbing the air entraining agent is 8%, and the content of the polymer is 3%.
(3) According to the weight portion, 1500 portions of Portland cement, 1800 portions of yellow sand, 1000 portions of particle filler solution containing adsorption air-entraining agent and 300 portions of bacterial cellulose suspension are evenly mixed, 15 portions of naphthalene-based superplasticizer are added, the total system contains 700 portions of water, and the bacterial cellulose reinforced assembly-type high-elastic modulus mortar for construction is obtained after even stirring.
Example 2:
(1) crushing dried bacterial cellulose to 50-100 mu m, then adding the crushed bacterial cellulose into acetic acid aqueous solution, adding sodium carboxymethylcellulose, and carrying out ultrasonic dispersion for 30min at the power of 30kHz until the mixture is uniform to obtain a bacterial cellulose suspension, wherein the content of the sodium carboxymethylcellulose in the bacterial cellulose suspension is 0.75%, and the content of the bacterial cellulose is 18%.
(2) Adding triterpenoid saponin or alkyl sulfonate into a solvent, uniformly mixing, adding 0.1-1mm porous metal oxide, 5-20mm porous molecular sieve and 30-40mm porous regeneration building particles in a mass ratio of 1:5:2, slowly stirring for 2 hours at a speed of 100r/min, adding an epoxy resin polymer, uniformly stirring at a rotating speed of 12000r/min, and coating for 20 minutes to obtain a particle filler solution for adsorbing an air entraining agent, wherein the content of the air entraining agent in the particle filler for adsorbing the air entraining agent is 12%, and the content of the polymer is 7%.
(3) 1600 parts of Portland cement, 2000 parts of yellow sand, 1500 parts of particle filler solution containing adsorption air-entraining agent and 500 parts of bacterial cellulose suspension are uniformly mixed, 45 parts of naphthalene-based superplasticizer with 750 parts of water in the total system are added, and the mixture is uniformly stirred to obtain the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building.
Example 3:
(1) crushing dried bacterial cellulose to 50-100 mu m, then adding the crushed bacterial cellulose into an acetic acid aqueous solution, adding sodium carboxymethylcellulose, and carrying out ultrasonic dispersion for 25min under the power of 25kHz until the mixture is uniform to obtain a bacterial cellulose suspension, wherein the content of the sodium carboxymethylcellulose in the bacterial cellulose suspension is 0.65%, and the content of the bacterial cellulose is 15%.
(2) Adding triterpenoid saponin or alkyl sulfonate into a solvent, uniformly mixing, adding a 0.1-1mm porous molecular sieve, 5-20mm porous regeneration building particles and 30-40mm porous regeneration building particles in a mass ratio of 1:4:1.5, wherein the pore size of the porous particle material is 80-300 mu m, slowly stirring at a speed of 80r/min for 1.5h, adding an epoxy resin polymer, uniformly stirring at a rotating speed of 8000r/min, and coating for 10min to obtain a particle filler solution for adsorbing the air entraining agent, wherein the content of the air entraining agent in the particle filler for adsorbing the air entraining agent is 10%, and the content of the polymer is 5%.
(3) According to parts by weight, 1550 parts of portland cement, 1900 parts of yellow sand, 1300 parts of a particle filler solution containing an adsorption air-entraining agent and 450 parts of bacterial cellulose suspension are uniformly mixed, 30 parts of a naphthalene-based superplasticizer is added, 730 parts of water are contained in the total system, and the mixture is uniformly stirred to obtain the bacterial cellulose reinforced assembly type high-elastic modulus mortar for buildings.
Example 4:
(1) crushing dried bacterial cellulose to 50-100 mu m, then adding the crushed bacterial cellulose into an acetic acid aqueous solution, adding sodium carboxymethylcellulose, and carrying out ultrasonic dispersion for 27min at the power of 23kHz until the mixture is uniform to obtain a bacterial cellulose suspension, wherein the content of the sodium carboxymethylcellulose in the bacterial cellulose suspension is 0.7%, and the content of the bacterial cellulose is 14%.
(2) Adding triterpenoid saponin or alkyl sulfonate into a solvent, uniformly mixing, adding a 0.1-1mm porous molecular sieve, a 5-20mm porous metal oxide and 30-40mm porous regenerated building particles with a mass ratio of 1:3.5:1.3, wherein the pore size of the porous particle material is 80-300 mu m, slowly stirring for 2h at a speed of 80r/min, adding an epoxy resin polymer, uniformly stirring at a rotating speed of 10000r/min, and coating for 15min to obtain a particle filler solution for adsorbing an air entraining agent, wherein the content of the air entraining agent in the particle filler for adsorbing the air entraining agent is 9%, and the content of the polymer is 5%.
(3) According to parts by weight, 1550 parts of portland cement, 1850 parts of yellow sand, 1100 parts of a particle filler solution containing an adsorption air-entraining agent and 450 parts of a bacterial cellulose suspension are uniformly mixed, 25 parts of a naphthalene-based superplasticizer with 730 parts of water in the total system are added, and the mixture is uniformly stirred to obtain the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building.
Example 5:
(1) crushing dried bacterial cellulose to 50-100 mu m, then adding the crushed bacterial cellulose into acetic acid aqueous solution, adding sodium carboxymethylcellulose, and carrying out ultrasonic dispersion for 30min at the power of 20kHz until the mixture is uniform to obtain a bacterial cellulose suspension, wherein the content of the sodium carboxymethylcellulose in the bacterial cellulose suspension is 0.6%, and the content of the bacterial cellulose is 18%.
(2) Adding triterpenoid saponin or alkyl sulfonate into a solvent, uniformly mixing, adding 0.1-1mm porous molecular sieve, 5-20mm porous regeneration building particles and 30-40mm porous regeneration building particles in a mass ratio of 1:3:2, slowly stirring for 2 hours at a speed of 50r/min, adding an epoxy resin polymer, uniformly stirring at a rotating speed of 5000r/min, and coating for 20 minutes to obtain a particle filler solution for adsorbing an air entraining agent, wherein the content of the air entraining agent in the particle filler for adsorbing the air entraining agent is 8%, and the content of the polymer is 7%.
(3) According to the weight portion, 1500 portions of Portland cement, 2000 portions of yellow sand, 1000 portions of particle filler solution containing adsorption air-entraining agent and 500 portions of bacterial cellulose suspension are uniformly mixed, 15 portions of naphthalene-based superplasticizer are added, 750 portions of water are contained in the total system, and the mixture is uniformly stirred to obtain the bacterial cellulose reinforced assembly type high-elastic modulus mortar for construction.
Example 6:
(1) crushing dried bacterial cellulose to 50-100 mu m, then adding the crushed bacterial cellulose into acetic acid aqueous solution, adding sodium carboxymethylcellulose, and carrying out ultrasonic dispersion for 20min at the power of 30kHz until the solution is uniform to obtain a bacterial cellulose suspension, wherein the content of the sodium carboxymethylcellulose in the bacterial cellulose suspension is 0.75%, and the content of the bacterial cellulose is 12%.
(2) Adding triterpenoid saponin or alkyl sulfonate into a solvent, uniformly mixing, adding 0.1-1mm porous metal oxide, 5-20mm porous regeneration building particles and 30-40mm porous regeneration building particles in a mass ratio of 1:5:1, slowly stirring for 1h at a speed of 100r/min, adding an epoxy resin polymer, uniformly stirring at a rotating speed of 12000r/min, and coating for 5min to obtain a particle filler solution for adsorbing an air entraining agent, wherein the content of the air entraining agent in the particle filler for adsorbing the air entraining agent is 12%, and the content of the polymer is 3%.
(3) 1600 parts of Portland cement, 1800 parts of yellow sand, 1500 parts of particle filler solution containing adsorption air-entraining agent and 300 parts of bacterial cellulose suspension are uniformly mixed, 45 parts of naphthalene-based superplasticizer with 700 parts of water in the total system are added, and the mixture is uniformly stirred to obtain the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building.
The results of testing the fluidity and torque of the bacterial cellulose-reinforced high-modulus mortar for prefabricated buildings prepared in examples 1 to 6 are shown below:
Figure BDA0001664544250000081
the uniaxial compressive strength, average elastic modulus and cleavage strength results of the bacterial cellulose reinforced fabricated construction high-modulus mortar prepared in examples 1 to 6 after being grouted 5 times are as follows:
Figure BDA0001664544250000091
as can be seen from the table above, the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building, prepared by the invention, has moderate fluidity, good viscosity, high strength, good elasticity and excellent mechanical properties.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (9)

1. The utility model provides a bacterial cellulose reinforced assembled high elastic modulus mortar for building which characterized in that: the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building comprises portland cement, yellow sand, particle fillers for adsorbing an air-entraining agent, bacterial cellulose and water, wherein the particle fillers for adsorbing the air-entraining agent are porous particles for coating and adsorbing the air-entraining agent by using polymers, and the porous particles are one or more of porous regenerated building particles, porous molecular sieves or porous metal oxides;
the preparation method comprises the following steps:
(1) crushing dried bacterial cellulose to 50-100 mu m, then adding the crushed bacterial cellulose into an acetic acid aqueous solution, adding sodium carboxymethyl cellulose, and performing ultrasonic dispersion uniformly to obtain a bacterial cellulose suspension;
(2) adding an air entraining agent into a solvent, uniformly mixing, adding a porous granular material, slowly stirring for 1-2h, adding a polymer, uniformly stirring and coating to obtain a granular filler solution for adsorbing the air entraining agent;
(3) and (3) uniformly mixing the portland cement, the yellow sand, the particle filler solution for adsorbing the air entraining agent prepared in the step (2) and the bacterial cellulose suspension prepared in the step (1), adding a water reducing agent, and uniformly stirring to obtain the bacterial cellulose reinforced high-elastic modulus mortar for the fabricated building.
2. The bacterial cellulose reinforced high-elastic modulus mortar for fabricated buildings according to claim 1, which is characterized in that: in the step (1), the power of ultrasonic dispersion is 20-30kHz, and the time is 20-30 min.
3. The bacterial cellulose reinforced high-elastic modulus mortar for fabricated buildings according to claim 1, which is characterized in that: in the step (1), the content of the sodium carboxymethyl cellulose in the bacterial cellulose suspension is 0.6-0.75%, and the content of the bacterial cellulose is 12-18%.
4. The bacterial cellulose reinforced high-elastic modulus mortar for fabricated buildings according to claim 1, which is characterized in that: in the step (2), the air entraining agent is triterpenoid saponin or alkyl sulfonate.
5. The bacterial cellulose reinforced high-elastic modulus mortar for fabricated buildings according to claim 1, which is characterized in that: in the step (2), the porous particles are one or more of porous regeneration building particles, porous molecular sieves or porous metal oxides, the mass ratio of 0.1-1mm, 5-20mm and 30-40mm in the porous particles is 1:3-5:1-2, and the pore size of the porous particle material is 80-300 mu m.
6. The bacterial cellulose reinforced high-elastic modulus mortar for fabricated buildings according to claim 1, which is characterized in that: in the step (2), the rotation speed of slow stirring is 50-100r/min, the rotation speed of uniform stirring is 5000-12000r/min, and the time is 5-20 min.
7. The bacterial cellulose reinforced high-elastic modulus mortar for fabricated buildings according to claim 1, which is characterized in that: in the step (2), the content of the air-entraining agent in the particle filler for adsorbing the air-entraining agent is 8-12%, the content of the polymer is 3-7%, and the polymer is epoxy resin.
8. The bacterial cellulose reinforced high-elastic modulus mortar for fabricated buildings according to claim 1, which is characterized in that: in the step (3), the water reducing agent is a naphthalene-based high-efficiency water reducing agent.
9. The bacterial cellulose reinforced high-elastic modulus mortar for fabricated buildings according to claim 1, which is characterized in that: in the step (3), the mass ratio of the silicate cement, the yellow sand, the particle filler for adsorbing the air entraining agent, the bacterial cellulose, the water reducing agent and the water in the bacterial cellulose reinforced assembly type high-elastic mold mortar for the building is 1500-1600: 1800-2000: 1000-1500:300-500:15-45:700-750.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008020187A1 (en) * 2006-08-16 2008-02-21 Imperial Innovations Limited Material comprising microbially synthesized cellulose associated with a support like a polymer and/or fibre
CN103708764A (en) * 2013-11-25 2014-04-09 邹学辉 Mortar fine powder and preparation method thereof
CN105294141A (en) * 2014-07-29 2016-02-03 金承黎 Nano porous concrete taking thixotropic colloid as template agent and preparation method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008020187A1 (en) * 2006-08-16 2008-02-21 Imperial Innovations Limited Material comprising microbially synthesized cellulose associated with a support like a polymer and/or fibre
CN103708764A (en) * 2013-11-25 2014-04-09 邹学辉 Mortar fine powder and preparation method thereof
CN105294141A (en) * 2014-07-29 2016-02-03 金承黎 Nano porous concrete taking thixotropic colloid as template agent and preparation method

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