CN111635177A - Light building environment-friendly material - Google Patents
Light building environment-friendly material Download PDFInfo
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- CN111635177A CN111635177A CN202010556002.4A CN202010556002A CN111635177A CN 111635177 A CN111635177 A CN 111635177A CN 202010556002 A CN202010556002 A CN 202010556002A CN 111635177 A CN111635177 A CN 111635177A
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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
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
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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
- 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
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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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
- 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
- C04B20/02—Treatment
- C04B20/04—Heat treatment
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a light building environment-friendly material, which belongs to the technical field of building materials and is prepared from the following substances: cementing material, mesh cloth, aggregate, foaming agent, additive, reinforcing additive and water. The light building environment-friendly material has simple raw material components, fully utilizes waste materials such as slag, straws and the like, is green and environment-friendly, and has good overall sound insulation, heat preservation, strength and other properties.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a light building environment-friendly material.
Background
The light material is a new type composite material, it uses alkali-resisting glass fibre as reinforcing material, uses sulphoaluminate low-alkalinity cement as cementing material and adds proper aggregate to form base material, and utilizes the processes of spraying, vertical mould casting, extruding and pulp flowing to make the invented inorganic composite material, instead of stone and sand, etc. so as to greatly reduce weight.
In recent years, with the increasing awareness of fire prevention of buildings, expandable polystyrene boards which are commonly used in the past are gradually exposed to cold, and particularly in recent years, fire accidents frequently occur due to fire of external wall insulation materials or spread of fire. 27 days 7 and 11 days 11 months 2008, twice fires occurred in a gymnasium constructed by the Jinan Olympic center; a 'longitude and latitude 360-degree' twins star building in Harbin city of 10.9.2008 is in fire; in 2009, 2, 9 days, a central television station is attached to a cultural center building; 9 months and 9 days in 2010, the fire is caught in a 32-storey residential building built in Changchun; 11/15 of 2010, a 28-story teacher apartment in an outside renovation in Shanghai's glue State developed a fire of a grand size, and so on. More and more fires occur, which threatens the life safety of the masses of people and causes huge economic loss, the occurrence of the fires is directly related to the use of combustible and combustible external wall insulation materials for buildings, the use of non-combustible and non-combustible wall insulation materials or the flame retardance of the combustible and combustible wall insulation materials is an effective measure for preventing the fires, and the research on the flame retardance and fire prevention of the wall insulation materials is more and more remarkable. Therefore, the related documents of the ministry of public security are in clear need of using A-grade fireproof materials as the building external thermal insulation materials; and the heat insulation system of the outer wall is required to have certain strength and enough stability, so that the heat insulation system has enough service life and reduces the possibility of secondary construction in the future.
In recent years, due to the mass production and use of clay bricks, the cultivated land area is increasingly reduced; on the other hand, industrial waste (fly ash, slag, steel slag, etc.) accumulates like a mountain, causing serious environmental pollution. At present, the light materials in the market have unstable product quality due to the uneven technical level.
The application numbers are: 201510336662.0 discloses an environment-friendly building insulation material, which comprises: 8-12 parts of cement, 12-20 parts of phosphogypsum, 8-10 parts of red mud, 1-2 parts of calcined gypsum powder, 5-8 parts of light calcium carbonate, 10-16% of expanded perlite, 0.1-0.2 part of lime crystal, 20-40 parts of fly ash, 1-5 parts of liquid water glass, 1-2 parts of polyvinyl alcohol, 6-8 parts of yellow sand, 6-8 parts of lime, 1-2 parts of aluminum powder, 4-8 parts of foaming agent, 5-8 parts of auxiliary agent and water which can be prepared into mortar in required amount. The obtained material has good heat insulation performance, but the components such as yellow sand are still used, so the environmental protection property still needs to be further optimized; in addition, the prepared material has large short plates in the quality of strength and the like.
The application numbers are: 201610638985.X discloses a light building environmental protection material, which comprises the following components in parts by weight: 18-23 parts of foam plastic particles; 8-12 parts of construction waste; 20-30 parts of cement; 1-2 parts of nano calcium sulfate; 2-5 parts of linear low-density polyethylene; 5-8 parts of white oil; 2-2.5 parts of a foaming agent; 5-8 parts of expanded perlite; 0.5-1.2 parts of a bactericide; 10-15 parts of mineral heat-insulating material; 25-30 parts of water. The material can effectively improve the heat preservation and insulation effects of the building material, and greatly improves the versatility of the building material. But the comprehensive performance of the composite material in actual use is still more common, and further enhancement is needed.
Disclosure of Invention
The invention aims to provide a light building environment-friendly material.
The technical purpose of the invention is realized by the following technical scheme:
a light building environment-friendly material is prepared from the following substances in parts by weight:
90-95 parts of a cementing material, 0.5-1 part of a mesh fabric, 30-35 parts of an aggregate, 8-10 parts of a foaming agent, 1-3 parts of an additive, 4-7 parts of a reinforcing additive and 110-120 parts of water.
Preferably, the food is prepared from the following substances in parts by weight:
93 parts of cementing material, 0.8 part of mesh fabric, 32 parts of aggregate, 9 parts of foaming agent, 2 parts of additive, 6 parts of reinforcing additive and 115 parts of water.
Further, the cementing material is cement; the grid cloth is glass fiber grid cloth; the aggregate is at least one of fly ash and slag.
Further, the foaming agent is hydrogen peroxide; the additive comprises a water reducing agent, a dry strength agent, a waterproof agent, an exciting agent and an antioxidant, and the corresponding weight ratio of the water reducing agent to the dry strength agent is 6-8: 3-5: 2-4: 1-3: 0.3-0.6.
Further, the water reducing agent is sulfamate; the drought-strengthening agent is triethanolamine; the waterproof agent is organic silicon; the activator is polycarboxylate; the antioxidant is antioxidant 1010.
Further, the preparation method of the reinforced additive comprises the following steps:
(1) firstly, carrying out steam explosion treatment on the straws, taking out the straws after the steam explosion treatment, immersing the straws into a solution A containing kaolin, continuously stirring the straws for 1-1.5 h, and taking out the straws for later use;
(2) putting the straws treated in the step (1) into a carbonization furnace for carbonization, taking out the straws after the carbonization, crushing and sieving the straws to obtain crushed materials B for later use;
(3) and (3) putting the crushed material B obtained in the step (2) into the modification liquid C, performing ultrasonic treatment for 2-2.5 hours at the frequency of 420-460 kHz, filtering out, and finally drying.
Further, the steam explosion treatment in the step (1) comprises the following specific operations: putting straws into an explosion tank, introducing water vapor with the temperature of 105-110 ℃ into the explosion tank, increasing the pressure in the explosion tank to 0.25-0.30 MPa, carrying out heat preservation and pressure maintaining treatment for 5-7 min, then unloading the explosion tank to normal temperature and pressure within 30s, and finally taking out and naturally cooling; the solution A consists of the following substances in parts by weight: 30-35 parts of kaolin, 10-15 parts of sodium hexametaphosphate, 8-12 parts of citric acid, 15-20 parts of glucose, 5-9 parts of sodium carboxymethylcellulose and 300-350 parts of water.
Further, controlling the heating mode in the carbonization furnace to be microwave heating during carbonization treatment in the step (2), and keeping the temperature of the straws at 400-440 ℃ during carbonization treatment; and after sieving, controlling the particle size of the crushed material B to be 300 meshes.
Further, the preparation method of the modifying solution C in the step (3) specifically comprises the following steps: mixing sodium citrate, sodium hexadecylbenzene sulfonate, polyethylene glycol and a titanate coupling agent according to a weight ratio of 3-5: 4-7: 13-16: 20-25, putting the mixture into a reaction kettle, adding absolute ethyl alcohol with the weight being 1.2-1.5 times of the total weight of the mixture, performing magnetic stirring treatment for 35-40 min, and taking out the mixture.
Further, the temperature in the reaction kettle is controlled to be 80-85 ℃ during the magnetic stirring treatment.
The invention improves the raw material components of the light building material, wherein the light building material is prepared by taking a cementing material as a main component and mixing the cementing material with gridding cloth, aggregate and the like, the main component ensures the overall environmental protection and low cost, and in order to further enhance the comprehensive use quality, an enhanced additive component is prepared and added, the enhanced additive component is prepared by processing waste straws as a main component, the space for secondary utilization of the waste straws is smaller at present, most of the waste straws are buried, the harm to the environment is reduced, but the utilization rate of the materials is low; the method comprises the following steps of performing steam explosion treatment on the straw, loosening the fiber structure of the straw at first, improving the specific surface area and the adsorption capacity of the straw, immersing the straw into a solution A containing kaolin, promoting kaolin particles to be inserted into fiber pores, forming a composite fiber structure filled with kaolin intercalation, performing carbonization treatment, carbonizing the composite fiber structure into biomass carbon, and remarkably improving the stability and the specific surface area of the biomass carbon; and finally, soaking by using the modified solution C, the overall surface activity of the additive is obviously improved, the bonding strength between the additive and gel materials is improved, and the overall stability and mechanical properties are enhanced.
Compared with the prior art, the invention has the following advantages:
the light building environment-friendly material has the advantages of simple raw material components, full utilization of waste materials such as slag, straw and the like, environmental protection, good overall sound insulation, heat preservation, strength and other properties, obviously enhanced comprehensive quality, and great market competitiveness and popularization and use values.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
A light building environment-friendly material is prepared from the following substances in parts by weight:
90-95 parts of a cementing material, 0.5-1 part of a mesh fabric, 30-35 parts of an aggregate, 8-10 parts of a foaming agent, 1-3 parts of an additive, 4-7 parts of a reinforcing additive and 110-120 parts of water.
The cementing material is cement; the grid cloth is glass fiber grid cloth; the aggregate is at least one of fly ash and slag; the foaming agent is hydrogen peroxide; the additive comprises a water reducing agent, a dry strength agent, a waterproof agent, an exciting agent and an antioxidant, and the corresponding weight ratio of the water reducing agent to the dry strength agent is 6-8: 3-5: 2-4: 1-3: 0.3-0.6; the water reducing agent is sulfamate; the drought-strengthening agent is triethanolamine; the waterproof agent is organic silicon; the activator is polycarboxylate; the antioxidant is antioxidant 1010.
The preparation method of the reinforced additive comprises the following steps:
(1) firstly, carrying out steam explosion treatment on straws, firstly putting the straws into an explosion tank, then introducing water vapor with the temperature of 105-110 ℃ into the explosion tank, simultaneously increasing the pressure in the explosion tank to 0.25-0.30 MPa, carrying out heat preservation and pressure maintaining treatment for 5-7 min, then unloading the interior of the explosion tank to normal temperature and normal pressure within 30s, and finally taking out and naturally cooling; taking out and immersing the solution A into the solution A containing the kaolin, continuously stirring for 1-1.5 h, and taking out for later use; the solution A consists of the following substances in parts by weight: 30-35 parts of kaolin, 10-15 parts of sodium hexametaphosphate, 8-12 parts of citric acid, 15-20 parts of glucose, 5-9 parts of sodium carboxymethylcellulose and 300-350 parts of water;
(2) putting the straws treated in the step (1) into a carbonization furnace for carbonization treatment, controlling the heating mode in the carbonization furnace to be microwave heating, and keeping the temperature of the straws at 400-440 ℃ during carbonization treatment; taking out the mixture after the completion, crushing the mixture, and sieving the crushed mixture with a 300-mesh sieve to obtain a crushed material B for later use;
(3) putting the crushed material B obtained in the step (2) into the modification liquid C, performing ultrasonic treatment for 2-2.5 hours at the frequency of 420-460 kHz, filtering out, and finally drying; the preparation method of the modified liquid C comprises the following specific steps: mixing sodium citrate, sodium hexadecylbenzene sulfonate, polyethylene glycol and a titanate coupling agent according to a weight ratio of 3-5: 4-7: 13-16: 20-25, putting the mixture into a reaction kettle, adding absolute ethyl alcohol with the weight being 1.2-1.5 times of the total weight of the mixture, carrying out magnetic stirring treatment for 35-40 min, and controlling the temperature in the reaction kettle to be 80-85 ℃ during the magnetic stirring treatment; and finally taking out the product.
Example 1
A light building environment-friendly material is prepared from the following substances in parts by weight:
90 parts of cementing material, 0.5 part of mesh cloth, 30 parts of aggregate, 8 parts of foaming agent, 1 part of additive, 4 parts of reinforcing additive and 110 parts of water.
The cementing material is cement; the grid cloth is glass fiber grid cloth; the aggregate is fly ash; the foaming agent is hydrogen peroxide; the additive consists of a water reducing agent, a dry strength agent, a waterproof agent, an exciting agent and an antioxidant in a corresponding weight ratio of 6:3:2:1: 0.3; the water reducing agent is sulfamate; the drought-strengthening agent is triethanolamine; the waterproof agent is organic silicon; the activator is polycarboxylate; the antioxidant is antioxidant 1010.
The preparation method of the reinforced additive comprises the following steps:
(1) firstly, performing steam explosion treatment on straws, putting the straws into an explosion tank, introducing water vapor with the temperature of 105 ℃ into the explosion tank, increasing the pressure in the explosion tank to 0.25MPa, performing heat preservation and pressure maintaining treatment for 5min, then unloading the explosion tank to normal temperature and normal pressure within 30s, and finally taking out and naturally cooling; taking out and immersing the kaolin-containing solution A into the kaolin-containing solution A, continuously stirring the solution A for 1 hour, and taking out the solution A for later use; the solution A consists of the following substances in parts by weight: 30 parts of kaolin, 10 parts of sodium hexametaphosphate, 8 parts of citric acid, 15 parts of glucose, 5 parts of sodium carboxymethylcellulose and 300 parts of water;
(2) putting the straws treated in the step (1) into a carbonization furnace for carbonization treatment, controlling the heating mode in the carbonization furnace to be microwave heating, and keeping the temperature of the straws at 400 ℃ during the carbonization treatment; taking out the mixture after the completion, crushing the mixture, and sieving the crushed mixture with a 300-mesh sieve to obtain a crushed material B for later use;
(3) putting the crushed material B obtained in the step (2) into the modification liquid C, then carrying out ultrasonic treatment for 2h at the frequency of 420kHz, filtering out, and finally carrying out drying treatment; the preparation method of the modified liquid C comprises the following specific steps: mixing sodium citrate, sodium hexadecylbenzene sulfonate, polyethylene glycol and a titanate coupling agent according to the weight ratio of 3:4:13:20, putting the mixture into a reaction kettle, adding absolute ethyl alcohol with the weight 1.2 times of the total weight of the mixture, and then carrying out magnetic stirring treatment for 35min, wherein the temperature in the reaction kettle is controlled to be 80 ℃ during the magnetic stirring treatment; and finally taking out the product.
Example 2
A light building environment-friendly material is prepared from the following substances in parts by weight:
93 parts of cementing material, 0.8 part of mesh fabric, 32 parts of aggregate, 9 parts of foaming agent, 2 parts of additive, 6 parts of reinforcing additive and 115 parts of water.
The cementing material is cement; the grid cloth is glass fiber grid cloth; the aggregate is fly ash; the foaming agent is hydrogen peroxide; the additive consists of a water reducing agent, a dry strength agent, a waterproof agent, an exciting agent and an antioxidant in a corresponding weight ratio of 7:4:3:2: 0.5; the water reducing agent is sulfamate; the drought-strengthening agent is triethanolamine; the waterproof agent is organic silicon; the activator is polycarboxylate; the antioxidant is antioxidant 1010.
The preparation method of the reinforced additive comprises the following steps:
(1) firstly, performing steam explosion treatment on straws, putting the straws into an explosion tank, introducing water vapor with the temperature of 108 ℃ into the explosion tank, increasing the pressure in the explosion tank to 0.27MPa, performing heat preservation and pressure maintaining treatment for 6min, then unloading the explosion tank to normal temperature and normal pressure within 30s, and finally taking out and naturally cooling; taking out and immersing the kaolin into the solution A containing the kaolin, continuously stirring for 1.3h, and taking out for later use; the solution A consists of the following substances in parts by weight: 32 parts of kaolin, 12 parts of sodium hexametaphosphate, 10 parts of citric acid, 18 parts of glucose, 8 parts of sodium carboxymethyl cellulose and 330 parts of water;
(2) putting the straws treated in the step (1) into a carbonization furnace for carbonization treatment, controlling the heating mode in the carbonization furnace to be microwave heating, and keeping the temperature of the straws at 420 ℃ during the carbonization treatment; taking out the mixture after the completion, crushing the mixture, and sieving the crushed mixture with a 300-mesh sieve to obtain a crushed material B for later use;
(3) putting the crushed material B obtained in the step (2) into the modification liquid C, then carrying out ultrasonic treatment for 2.3h at the frequency of 450kHz, filtering out, and finally carrying out drying treatment; the preparation method of the modified liquid C comprises the following specific steps: mixing sodium citrate, sodium hexadecylbenzene sulfonate, polyethylene glycol and a titanate coupling agent according to a weight ratio of 4:6:15:24, putting the mixture into a reaction kettle, adding absolute ethyl alcohol with the weight being 1.4 times of the total weight of the mixture, and then carrying out magnetic stirring treatment for 38min, wherein the temperature in the reaction kettle is controlled to be 82 ℃ during the magnetic stirring treatment; and finally taking out the product.
Example 3
A light building environment-friendly material is prepared from the following substances in parts by weight:
95 parts of cementing material, 1 part of mesh fabric, 35 parts of aggregate, 10 parts of foaming agent, 3 parts of additive, 7 parts of reinforcing additive and 120 parts of water.
The cementing material is cement; the grid cloth is glass fiber grid cloth; the aggregate is slag; the foaming agent is hydrogen peroxide; the additive consists of a water reducing agent, a dry strength agent, a waterproof agent, an exciting agent and an antioxidant in a corresponding weight ratio of 8:5:4:3: 0.6; the water reducing agent is sulfamate; the drought-strengthening agent is triethanolamine; the waterproof agent is organic silicon; the activator is polycarboxylate; the antioxidant is antioxidant 1010.
The preparation method of the reinforced additive comprises the following steps:
(1) firstly, performing steam explosion treatment on straws, putting the straws into an explosion tank, introducing water vapor with the temperature of 110 ℃ into the explosion tank, increasing the pressure in the explosion tank to 0.30MPa, performing heat preservation and pressure maintaining treatment for 7min, then unloading the explosion tank to normal temperature and normal pressure within 30s, and finally taking out and naturally cooling; taking out and immersing the kaolin into the solution A containing the kaolin, continuously stirring for 1.5h, and taking out for later use; the solution A consists of the following substances in parts by weight: 35 parts of kaolin, 15 parts of sodium hexametaphosphate, 12 parts of citric acid, 20 parts of glucose, 9 parts of sodium carboxymethylcellulose and 350 parts of water;
(2) putting the straws treated in the step (1) into a carbonization furnace for carbonization treatment, controlling the heating mode in the carbonization furnace to be microwave heating, and keeping the temperature of the straws at 440 ℃ during carbonization treatment; taking out the mixture after the completion, crushing the mixture, and sieving the crushed mixture with a 300-mesh sieve to obtain a crushed material B for later use;
(3) putting the crushed material B obtained in the step (2) into the modification liquid C, then carrying out ultrasonic treatment for 2.5h at the frequency of 460kHz, filtering out, and finally carrying out drying treatment; the preparation method of the modified liquid C comprises the following specific steps: mixing sodium citrate, sodium hexadecylbenzene sulfonate, polyethylene glycol and a titanate coupling agent according to a weight ratio of 5:7:16:25, putting the mixture into a reaction kettle, adding absolute ethyl alcohol with the weight being 1.5 times of the total weight of the mixture, and then carrying out magnetic stirring treatment for 40min, wherein the temperature in the reaction kettle is controlled to be 85 ℃ during the magnetic stirring treatment; and finally taking out the product.
Comparative example 1
This comparative example 1 is compared with example 2 only with the difference that in the preparation of the reinforcing additive, the treatment operation of step (3) is omitted, except that the process steps are otherwise identical.
Comparative example 2
This comparative example 2 differs from example 2 only in that the treatment of solution A in step (1) is omitted in the preparation of the reinforcing additive, except that the process steps are otherwise identical.
Comparative example 3
This comparative example 3 is different from example 2 only in that the reinforcing additive component is replaced with an equal mass part of biochar, except that the process steps are the same.
Comparative example 4
This comparative example 4 is compared with example 2, only with the exception that the reinforcing additive component has been omitted, except that the process steps are identical.
Comparative example 5
The application numbers are: 201610638985.X discloses a lightweight building environmental protection material, specifically the technical solution of example 2.
In order to compare the effects of the invention, the materials prepared in the above example 2 and comparative examples 1 to 5 were subjected to performance tests, and the specific comparative data are shown in the following table 1:
TABLE 1
Note: the performance index test described in Table 1 above is a test performed with reference to the GB/T15229-2002 technical index for lightweight concrete.
As can be seen from the above table 1, the comprehensive performance of the environment-friendly material prepared by the method of the invention is remarkably enhanced, the stability and the service life are remarkably improved, and the environment-friendly material has great market competitiveness and popularization and application values.
Claims (10)
1. The light building environment-friendly material is characterized by being prepared from the following substances in parts by weight:
90-95 parts of a cementing material, 0.5-1 part of a mesh fabric, 30-35 parts of an aggregate, 8-10 parts of a foaming agent, 1-3 parts of an additive, 4-7 parts of a reinforcing additive and 110-120 parts of water.
2. The light building environment-friendly material as claimed in claim 1, which is prepared from the following substances in parts by weight:
93 parts of cementing material, 0.8 part of mesh fabric, 32 parts of aggregate, 9 parts of foaming agent, 2 parts of additive, 6 parts of reinforcing additive and 115 parts of water.
3. The lightweight construction environment-friendly material as claimed in claim 1 or 2, wherein the cementitious material is cement; the grid cloth is glass fiber grid cloth; the aggregate is at least one of fly ash and slag.
4. The light building environment-friendly material as claimed in claim 1 or 2, wherein the foaming agent is hydrogen peroxide; the additive comprises a water reducing agent, a dry strength agent, a waterproof agent, an exciting agent and an antioxidant, and the corresponding weight ratio of the water reducing agent to the dry strength agent is 6-8: 3-5: 2-4: 1-3: 0.3-0.6.
5. The light building environment-friendly material as claimed in claim 4, wherein the water reducing agent is sulfamate; the drought-strengthening agent is triethanolamine; the waterproof agent is organic silicon; the activator is polycarboxylate; the antioxidant is antioxidant 1010.
6. The lightweight construction environment-friendly material as set forth in claim 1 or 2, characterized in that the preparation method of the reinforced additive comprises the following steps:
(1) firstly, carrying out steam explosion treatment on the straws, taking out the straws after the steam explosion treatment, immersing the straws into a solution A containing kaolin, continuously stirring the straws for 1-1.5 h, and taking out the straws for later use;
(2) putting the straws treated in the step (1) into a carbonization furnace for carbonization, taking out the straws after the carbonization, crushing and sieving the straws to obtain crushed materials B for later use;
(3) and (3) putting the crushed material B obtained in the step (2) into the modification liquid C, performing ultrasonic treatment for 2-2.5 hours at the frequency of 420-460 kHz, filtering out, and finally drying.
7. The lightweight construction environment-friendly material as claimed in claim 6, wherein the steam explosion treatment in the step (1) is carried out by the following specific operations: putting straws into an explosion tank, introducing water vapor with the temperature of 105-110 ℃ into the explosion tank, increasing the pressure in the explosion tank to 0.25-0.30 MPa, carrying out heat preservation and pressure maintaining treatment for 5-7 min, then unloading the explosion tank to normal temperature and pressure within 30s, and finally taking out and naturally cooling; the solution A consists of the following substances in parts by weight: 30-35 parts of kaolin, 10-15 parts of sodium hexametaphosphate, 8-12 parts of citric acid, 15-20 parts of glucose, 5-9 parts of sodium carboxymethylcellulose and 300-350 parts of water.
8. The light building environment-friendly material as claimed in claim 6, wherein the heating mode in the carbonization furnace in the carbonization treatment in the step (2) is controlled to be microwave heating, and the temperature of the straw in the carbonization treatment is kept to be 400-440 ℃; and after sieving, controlling the particle size of the crushed material B to be 300 meshes.
9. The light building environment-friendly material as claimed in claim 6, wherein the preparation method of the modifying solution C in the step (3) is specifically as follows: mixing sodium citrate, sodium hexadecylbenzene sulfonate, polyethylene glycol and a titanate coupling agent according to a weight ratio of 3-5: 4-7: 13-16: 20-25, putting the mixture into a reaction kettle, adding absolute ethyl alcohol with the weight being 1.2-1.5 times of the total weight of the mixture, performing magnetic stirring treatment for 35-40 min, and taking out the mixture.
10. The light building environment-friendly material as claimed in claim 9, wherein the temperature in the reaction kettle is controlled to be 80-85 ℃ during the magnetic stirring treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010556002.4A CN111635177A (en) | 2020-06-17 | 2020-06-17 | Light building environment-friendly material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010556002.4A CN111635177A (en) | 2020-06-17 | 2020-06-17 | Light building environment-friendly material |
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| CN111635177A true CN111635177A (en) | 2020-09-08 |
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| CN112573888A (en) * | 2021-01-23 | 2021-03-30 | 惠州市建达实业有限公司 | High-strength and moisture-proof aerated brick and preparation method thereof |
| CN116330788A (en) * | 2023-03-07 | 2023-06-27 | 山东天元重工有限公司 | Motor car decorative plate and preparation method thereof |
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Application publication date: 20200908 |