CN113831150A - Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall - Google Patents
Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall Download PDFInfo
- Publication number
- CN113831150A CN113831150A CN202110771138.1A CN202110771138A CN113831150A CN 113831150 A CN113831150 A CN 113831150A CN 202110771138 A CN202110771138 A CN 202110771138A CN 113831150 A CN113831150 A CN 113831150A
- Authority
- CN
- China
- Prior art keywords
- parts
- mass
- mixture
- concrete
- concrete according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
-
- 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
-
- 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
-
- 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
-
- 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
Discloses a novel foamed concrete, a foamed concrete prefabricated member and a preparation method of a light filling cast-in-place wall body. The invention discloses novel foamed concrete which comprises the following components in parts by weight: 150-350 parts of cement, 150-500 parts of stone powder, 150-500 parts of furnace slag, 50-200 parts of inorganic calcium hydroxide, 50-350 parts of fly ash, 150-500 parts of construction solid waste, 150-500 parts of pumice particles and stone powder, 150-500 parts of industrial solid waste ore particles and stone powder, 30-150 parts of polyurethane, 100-300 parts of industrial fired product waste residues (such as clay, shale and calcium stone), 20-50 parts of polyphenyl particles, 0.1-0.4 part of foaming agent, 3-12 parts of additive and 120-200 parts of water. The invention has the characteristics of environmental protection and low production cost.
Description
Technical Field
The invention relates to the technical field of non-load-bearing lightweight concrete, in particular to novel foamed concrete, a foamed concrete prefabricated member and a preparation method of a lightweight filling cast-in-place wall body.
Background
Wherein a large amount of construction solid waste and industrial solid waste are mixed with household garbage and construction garbage, which has adverse effect on the ecological environment. The recovery and treatment of solid wastes has been a difficult problem in the industry, and serious pollution is caused to the ecological environment. The calcium hydroxide is a common inorganic material, namely limestone or quicklime water, and is widely applied to the fields of home decoration and the like. With the progress and development of social household life, the updating iteration is rapid. And wastes such as industrial fired waste (such as shale, clay, and limestone) particles. The invention effectively organizes the waste materials together to develop the novel light foam concrete. The non-degradable or degradable and difficult-to-recycle waste is recycled, the environmental pollution is improved, and the waste is changed into renewable resources, so that the energy is saved and the environment is protected. The novel light foam concrete has the characteristics of high performance, high strength, light weight, heat preservation, heat insulation, sound insulation, high elastic modulus, strong shock resistance and the like. The application fields are wider, such as municipal engineering, roads and bridges, civil buildings, highway backfill, roof heat preservation, non-bearing cast-in-place walls, internal and external walls and the like.
The lightweight concrete is concrete using lightweight aggregate, and the density of the lightweight concrete is not more than 1900kg/m 3. The lightweight concrete has the characteristics of heat preservation and fire resistance and good deformability. The existing lightweight concrete has the problems of difficult concrete construction and inconvenient operation, a large amount of manpower is utilized according to the traditional method during construction, the old construction process is adopted, and in addition, the labor workers in China are aged, and young newborns are often unwilling to enter the field of building labor, so that the construction efficiency is lower, and the production cost is higher.
Disclosure of Invention
The invention aims to provide a novel non-bearing foamed concrete, a foamed concrete prefabricated member and a preparation method of a light filling cast-in-place wall body, and aims to solve the problems of recovery treatment of building solid waste and industrial solid waste, low concrete construction efficiency and high production cost.
The technical purpose of the invention is realized by the following technical scheme: the novel foaming concrete comprises the following components in parts by weight: 150-350 parts of cement, 150-500 parts of stone powder, (pumice is stone saltpeter powder of industrial solid waste tailing ore) 150-500 parts, 150-500 parts of building solid waste powder and small particles, 50-200 parts of calcium hydroxide, 150-500 parts of furnace slag, 30-150 parts of polyurethane, 20-50 parts of polyphenyl particles, 100-350 parts of fly ash, 0.1-0.4 part of foaming agent, 3-12 parts of additive, 100-300 parts of industrial fired product waste residues (such as shale, clay and limestone) and 120-200 parts of water.
The invention is further provided with: the cement mortar also comprises 150-350 parts by weight of cement.
By adopting the technical scheme, the cement: the powdered hydraulic inorganic cementing material is added with water and stirred to form slurry. The foaming concrete can be hardened in the air or in water, powdery materials such as stone powder, fly ash and the like and aggregates including industrial burned product waste residues (such as shale, clay and limestone) particles, polyurethane, polyphenyl particles, industrial solid wastes, building solid wastes and the like can be firmly cemented together according to a proportion to prepare a concrete wet material, and the concrete wet material is foamed by a foaming agent and is doped into the concrete wet material to be uniformly stirred so as to prepare the foaming concrete, so that the foaming concrete has the advantages of light density, high strength, heat preservation, heat insulation, sound insulation, environmental protection and energy conservation.
The invention is further provided with: the foaming agent also comprises 3-12 parts by weight of foaming agent.
By adopting the technical scheme, the components and the preparation method of the admixture are all the prior art and are commercially available, so that the technical personnel in the field can not influence the understanding of the actual protection scope of the application even if the description is not given. Preferably: the additive can be a polycarboxylic acid water reducing agent. High water reducing rate, small slump loss, sensitivity to water consumption and obvious effect of improving the strength of concrete. Retarding component polyol and derivatives thereof: polyols, amine derivatives, celluloses; the slow setting effect is stable, the stability is good when the temperature changes, and the mixing amount is 0.05-0.2%. The water retention component and the water retention agent have the function of increasing the viscosity of the concrete mixture, so that the concrete does not bleed and separate under the conditions of large water-cement ratio and large slump. The early strength component sulfate is the most widely used early strength agent, wherein the dosage of sodium sulfate is the largest, and the dosage is usually 1 to 3 percent, and is usually 1.5 percent;
the invention is further provided with: the foaming agent also comprises 0.1-0.4 part by weight of foaming agent.
By adopting the technical scheme, the animal protein polymer foaming agent has good uniformity and stability, the foamed foam is not communicated with the foam, and the air holes of the prepared foamed concrete are not communicated with each other. The product has good anti-permeability performance and better sound insulation and heat preservation functions than other foaming agents. The sodium carboxymethyl cellulose is an ionic cellulose gum, has hygroscopicity, and is easy to disperse in water to form transparent colloidal solution. The sodium carboxymethylcellulose can be used as a colloidal tackifier for thickening and emulsifying, and is matched with cement to increase the adhesion degree of each component of the concrete, so that the hardness and toughness of the concrete are enhanced, the compressive strength of the concrete is improved, and the impermeability of the concrete is improved. Meanwhile, molecular acting force is easily formed between the sodium carboxymethylcellulose and the polyurethane, so that the firmness of the concrete is enhanced, the anti-cracking effect of the concrete is improved, the service life of the concrete is prolonged, the stability of the polyurethane is improved, the high temperature resistance and the ageing resistance of the polyurethane are improved, and the ageing resistance and the corrosion resistance of the concrete are improved. Because the sodium carboxymethylcellulose has the characteristics of no odor and no odor, and has stable chemical properties, high safety, no adverse effect on human health and environmental friendliness. Alkylphenol polyoxyethylene is an important polyoxyethylene type nonionic surfactant, has the characteristics of stable property, acid and alkali resistance, low cost and the like, can increase the dispersion of each component of concrete in the stirring process, has good dispersion performance, prevents the mutual aggregation of particles of each component of the concrete, improves the uniform distribution of each component of the concrete, makes the concrete have uniform texture, and thus improves the quality of the concrete. In addition, because the alkylphenol ethoxylates is a polyoxyethylene polymer, intermolecular acting force is easily formed between the alkylphenol ethoxylates and polyurethane, so that the toughness of the concrete is improved, and the impact resistance and the compressive strength of the concrete are improved. The silicone amide has a foam stabilizing function, can improve the viscosity of concrete slurry, has strong dispersibility, can uniformly disperse solid particles in the concrete and uniformly distribute air holes, can improve the air hole structure, reduce the holes, improve the strength and the heat insulation effect of the concrete, reduce the probability of die collapse, and can reduce the material consumption.
By adopting the technical scheme, it needs to be noted that the raw materials of the foamed concrete in the technical scheme, namely the building solid waste and the industrial solid waste, are ores and pumice, can be used for processing and preparing the foamed concrete only by simple physical crushing treatment. The method only simply and physically crushes the ore and the pumice stone which are the solid wastes of the building and the solid wastes of the industry, has simple process, does not use chemical reagents and has little pollution. The building solid waste and the industrial solid waste are added into the ore and pumice particles, and the densities of the building solid waste and the industrial solid waste are both relatively light, so that the density of concrete is reduced, the problem that the building solid waste and the industrial solid waste are difficult to treat is solved, the building solid waste and the industrial solid waste are treated without harm to the ore waste, namely, the environmental pollution is effectively reduced, the ecological balance is protected, the effect that the building solid waste and the industrial solid waste are recycled to the ore is realized, a new recycling way is found for the building solid waste and the industrial solid waste, the production cost is reduced, and the environment-friendly effect is realized.
The addition of tailing ore, pumice, particles and powder in the solid waste of buildings and industrial solid waste can not only increase the heat preservation effect of the foamed concrete while reducing the density of the foamed concrete, but also enhance the compressive strength of the foamed concrete and improve the quality of the foamed concrete.
In the technical scheme, stone powder is effectively utilized, the production cost is low, and the environment is friendly. Because the densities of the materials in the technical scheme are relatively close, the finished product of the foamed concrete mixture prepared according to a certain proportion has uniform texture, and is not easy to generate drum control and cracks. Under the same volume, properly adjust and add the foamer and make the foaming concrete density reduce, the even space of big or small of inside formation, difficult crack, shrink, subside, density is comparatively even, not only makes foaming concrete weight reduce, reduces the load of building, increase of service life, makes this foaming concrete have the heat preservation in addition and insulates against heat, and the coefficient of heat conductivity is low characteristics, and the sound insulation effect is better.
The invention is further provided with: the fly ash comprises 100-500 parts by weight of stone powder and fly ash.
By adopting the technical scheme, the density of the fly ash and the stone powder is low, and the addition of the fly ash and the stone powder reduces the density of the foamed concrete aggregate, so that the density of the foamed concrete is reduced, the recycling of the fly ash is realized, the environment-friendly energy-saving effect is realized, and the production cost is low.
The invention is further provided with: the slag-free casting material also comprises 150-500 parts by weight of slag.
By adopting the technical scheme, the recycling of industrial waste slag is realized by adding the slag, the reutilization and the reasonable use of waste slag resources are realized, the production cost is lower, the environment is protected, the energy is saved, and meanwhile, the strength of the foamed concrete is increased by the slag.
The invention is further provided with: the brick comprises, by mass, 150-500 parts of brick slag.
By adopting the technical scheme, the construction waste brick slag is used as construction waste, the conditions that the quantity is large and the treatment is difficult are existed, the technical scheme realizes the recycling of the construction waste brick slag, not only realizes the recycling of resources, saves energy, but also reduces the production cost, and has reasonable design and good economic benefit. Meanwhile, the construction waste brick slag can be simply physically crushed without adopting a chemical treatment mode, the process is simple, no chemical reagent is used, and the pollution is small.
The invention is further provided with: the building material also comprises 150-500 parts of building solid waste and industrial solid waste by mass.
By adopting the technical scheme, the solid waste of the building and the solid waste of the industry are green and pollution-free renewable resources, the texture is light, the toughness is large, the inside is rich in a porous structure, the heat preservation effect is good, the density of the foamed concrete is reduced by adding the solid waste brick slag of the building, the pumice and the tailing, the compressive strength and the fracture elongation rate of the foamed concrete are increased due to the structure of the small-particle aggregate, the toughness of the foamed concrete is enhanced, the compressive strength, the anti-seismic performance and the heat preservation performance of the foamed concrete are improved, and simultaneously, the anti-aging performance of the slag, the solid waste of the building and the solid waste of the industry is improved, so the anti-aging performance of the foamed concrete is improved. The slag, the building solid waste and the industrial solid waste are convenient to obtain, renewable, low in cost, wide in resource, free of pollution and radioactivity, free of formaldehyde and good in environmental protection performance. The foamed concrete has stronger toughness, and the toughness and the strength of the foamed concrete are better enhanced on the premise of ensuring the light weight of the foamed concrete.
The invention also provides a foamed concrete prefabricated part which is made of any one of the foamed concrete.
The invention also provides a preparation method of the light filling cast-in-place wall body, which comprises the following steps:
s1, selecting any one of the raw materials in proportion, adding the raw materials except the foaming agent into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding a foaming agent into the mixture, avoiding vibration, and pouring the foamed mixture into a previously erected mold through a conveying pump for molding.
Through adopting above-mentioned technical scheme, earlier with other raw materialss of concrete mix the stirring back, add the foaming agent in pouring the preceding mixture, the shaping in delivering to the stock mould through the delivery pump after the foaming, through the difference of mould, be applicable to the pouring of the wall body of different operating modes. The technical scheme is simple in process, simple to operate, high in practicability, high in construction efficiency and low in production cost, meanwhile, the shaping plastic formwork can be recycled, waste of building tools and random abandonment of building materials are avoided, energy is saved, environment is protected, production cost is reduced, and economic benefit is good.
The invention has the beneficial effects that:
1. the addition of the building solid waste, the industrial solid waste, the pumice, the slag particles and the polyurethane not only reduces the density of concrete, but also solves the problem that the solid waste particles are difficult to treat, realizes the harmless treatment of the wastes such as the building solid waste, the industrial solid waste, the pumice, the slag particle polyurethane and the like, namely effectively reduces the environmental pollution, protects the ecological balance, realizes the recycling effect of the building solid waste, the industrial solid waste, the pumice and the slag particle polyurethane, finds a new recycling way for the building solid waste, the industrial solid waste, the pumice and the slag particle polyurethane wastes, reduces the production cost, and is green and environment-friendly. Meanwhile, as the density of each raw material of the foam concrete is relatively close, the foam concrete has uniform texture, is not easy to bulge and crack, forms uniform-size hollow spaces inside the concrete, and has the advantages of heat preservation, heat insulation, low heat conductivity coefficient and better sound insulation effect.
2. The addition of the fly ash, the furnace slag, the building waste brick slag, the tailing stone, the pumice polyurethane and the like not only enhances the performance of the concrete, but also realizes the reutilization of waste resources, is green and energy-saving, and has lower production cost.
3. The particles such as slag, pumice, building solid waste, industrial solid waste polyurethane and the like can effectively prevent the occurrence of cracks caused by plastic shrinkage, drying and temperature change of concrete, simultaneously enhance the impermeability and impact resistance of the concrete, improve the toughness of the concrete, simultaneously enhance the ageing resistance of the concrete, prolong the service life of the foam concrete and enhance the compressive strength of the concrete. The additive enhances the hardness and toughness of the concrete, improves the compressive strength of the concrete, improves the impermeability of the concrete, improves the crack resistance of the concrete, and improves the ageing resistance and the corrosion resistance of the concrete.
4. The technical scheme is simple in process, simple to operate, high in practicability, high in construction efficiency and low in production cost, meanwhile, the shaping plastic formwork can be recycled, waste of building tools and random discarding of building materials are avoided, energy is saved, environment is protected, production cost is reduced, and economic benefits are good.
5. The product of the invention is better than other types of light foam concrete, firstly, the strength of the aggregate is certain because of adding building solid waste and industrial solid waste, and the aggregate per se has certain strength, and the product strength breaks through the difficulties of low strength, high dry density, mold treading, shrinkage and cracks of other products through unique and scientific proportioning; the industrial solid waste and the building solid waste are the building materials which are used, are harmless to human bodies and have no potential safety hazard. In the past, secondary grooving is complicated, labor is wasted, dust pollution is caused, and operators are harmed.
6. The product of the invention has wider application, is different from other products, and is not only suitable for various types of backfilling, heat preservation and leveling of roofs, internal and external partition walls of cast-in-place walls, sound insulation with special requirements and the like, and various light foamed concretes with certain plane structures and vertical structures.
7. The assembled type of the non-bearing wall body of the product can be matched with an equipment type building main body for use, and is the mainstream of the future building industry.
Detailed Description
The technical scheme of the invention is clearly and completely described in detail by specific embodiments. All other embodiments, which can be derived by a person skilled in the art without making any inventive step based on the embodiments of the present invention, belong to the present invention
Example 1
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 300 parts by mass of stone powder, 300 parts by mass of slag, 10 parts by mass of an additive and 120 parts by mass of water into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.1 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 2
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 500 parts by mass of slag, 12 parts by mass of an additive, 130 parts by mass of water and 100 parts by mass of fly ash into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.25 part by weight of foaming agent into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 3
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 10 parts by mass of additive, 200 parts by mass of stone powder, 130 parts by mass of water, 250 parts by mass of slag and 150 parts by mass of fly ash into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.2 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 4
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 400 parts by mass of stone powder, 8 parts by mass of an additive, 130 parts by mass of water, 50 parts by mass of fly ash and 150 parts by mass of polyurethane into a stirrer, and uniformly stirring to obtain a mixture.
S2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.25 part by weight of foaming agent into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 5
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 350 parts by mass of stone powder, 8 parts by mass of an additive, 140 parts by mass of water, 200 parts by mass of slag and 30 parts by mass of polyurethane into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.3 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 6
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 150 parts by mass of brick slag (stone powder and 150 parts by mass of particles), 10 parts by mass of additive, 130 parts by mass of water, 400 parts by mass of stone powder and 50 parts by mass of polyurethane into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.3 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 7
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 150 parts by mass of pumice (stone powder and 150 parts by mass of particles), 8 parts by mass of an additive, 140 parts by mass of water, 300 parts by mass of stone powder and 50 parts by mass of polyurethane into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.2 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 8
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 250 parts by mass of industrial firing waste residue, 12 parts by mass of additive, 150 parts by mass of water and 350 parts by mass of stone powder into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.2 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 9
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 200 parts by mass of industrial firing waste residue, 12 parts by mass of additive, 150 parts by mass of water, 50 parts by mass of fly ash and 350 parts by mass of stone powder into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.4 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 10
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 150 parts by mass of industrial firing waste residues, 180 parts by mass of stone powder, 12 parts by mass of an additive, 150 parts by mass of water, 200 parts by mass of slag and 30 parts by mass of polyurethane into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.2 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 11
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 200 parts by mass of industrial firing waste residues, 12 parts by mass of an additive, 150 parts by mass of water, 100 parts by mass of fly ash, 100 parts by mass of stone powder, 50 parts by mass of polyurethane and 150 parts by mass of furnace slag into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.2 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 12
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 200 parts by mass of pumice, 12 parts by mass of an additive, 150 parts by mass of water, 250 parts by mass of stone powder and 50 parts by mass of polyphenyl granules into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.2 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 13
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 300 parts by mass of industrial firing waste residues, 12 parts by mass of an additive, 150 parts by mass of water, 250 parts by mass of stone powder and 50 parts by mass of polyphenyl granules into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.2 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
Example 14
A preparation method of a lightweight filling cast-in-place wall body comprises the following steps:
s1, adding 200 parts by mass of cement, 12 parts by mass of an additive, 150 parts by mass of water, 300 parts by mass of stone powder, 50 parts by mass of polyphenyl granules and 250 parts by mass of slag into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the flow-processed mould by using the recyclable shaping plastic template according to the working condition, and reinforcing the shaping mould by using pins;
and S4, adding 0.2 part of foaming agent by weight into the mixture, avoiding vibration, and pouring the foamed mixture into a mold erected before the foamed mixture is formed through a conveying pump. Wherein the foaming agent is sodium dodecyl sulfate.
2. Content of the experiment
The concrete preforms prepared in examples 1 to 9 were taken, 9 parts of each example were prepared, and the performance test was performed: the dry density (kg/m3) of the concrete is detected according to JG/T266-2011, the compressive strength (MPa) of the concrete is detected according to JG/T266-2011, the heat conductivity coefficient (W/(m.K)) of the concrete is detected according to GB/T10294-2008, and the radioactivity of the concrete is detected according to GB 6566-2010: an internal irradiation index IRa, an external irradiation index I γ; GB/T5464-2010 tests the combustion performance of the concrete: furnace temperature (. degree. C.); a duration of combustion(s); mass loss (%); total Heat value (MJ/kg), data for each set of examples was recorded, then the maximum and minimum values were discarded, and the remaining values were averaged and recorded.
3. Characterization of product Properties
The results obtained for each set of experiments are reported in the following table:
example 1
Example 2
Example 3
Example 4
Example 5
Example 6
Example 7
Example 8
Example 9
Example 10
Example 11
Example 12
Example 13
Example 14
According to the data, the parameters (dry density, compressive strength and heat conductivity coefficient) of the concrete obtained in the embodiment all meet the standard requirements of JG/T266-2011, the radioactivity detection result all meets the limited requirement of class A decorative finishing materials in GB6566-2010, and the combustion performance parameters of the concrete all meet the standard requirement of class A1 in GB 8624-2012.
The addition of calcium hydroxide, slag, building solid waste and stone powder polyurethane can reduce the density of concrete aggregate, further reduce the density of concrete, raise the light weight of concrete, reduce building load and prolong its service life. The addition of the calcium hydroxide not only increases the toughness of the concrete, but also increases the compressive strength of the concrete. The adhesion degree of each component of the concrete is increased, the anti-cracking effect of the concrete is improved, and the service life of the concrete is prolonged. The addition of the foaming agent not only improves the uniform distribution of each component of the concrete and makes the concrete homogeneous, but also can react with the acting force among molecules such as calcium hydroxide, building solid wastes and the like, thereby increasing the toughness of the concrete and improving the impact resistance and the compressive strength of the concrete. The generation of the bubbles not only increases the heat storage capacity of the concrete, but also can keep the indoor temperature appropriate and improve the living suitability of people, thereby leading the concrete to have competitive power on economic benefit.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (16)
1. A novel foaming concrete is characterized in that: the paint comprises the following components in parts by mass: 150-350 parts of cement, 150-500 parts of stone powder, 150-500 parts of furnace slag, 50-200 parts of inorganic calcium hydroxide, 150-500 parts of pumice particles and stone powder, 150-500 parts of industrial solid waste ore particles and stone powder, 150-500 parts of building solid waste, 50-350 parts of fly ash, 30-150 parts of polyurethane, 20-50 parts of polyphenyl particles, 0.1-0.4 part of animal protein high-molecular foaming agent, 3-12 parts of additive, 120-200 parts of water and 100-300 parts of industrial fired product waste residues (such as clay, shale and calcium stone).
2. The novel foam concrete according to claim 1, wherein: the fly ash comprises, by mass, 50-350 parts of fly ash.
3. The novel foam concrete according to claim 1, wherein: the slag-free casting material also comprises 150-500 parts by weight of slag.
4. The novel foam concrete according to claim 1, wherein: the building material also comprises 150-500 parts of building solid waste by mass.
5. The novel foam concrete according to claim 1, wherein: the coating also comprises 50-200 parts by weight of calcium hydroxide.
6. The novel foam concrete according to claim 1, wherein: and the mortar also comprises 150-350 parts of P.O ordinary portland cement by mass.
7. The novel foam concrete according to claim 1, wherein: the stone powder comprises 150-500 parts by weight of stone powder.
8. The novel foam concrete according to claim 1, wherein: 0.1-0.4 part of animal protein high-molecular foaming agent.
9. The novel foam concrete according to claim 1, wherein: the water reducing agent also comprises 3-12 parts of a high-new-energy water reducing reinforcing agent by mass.
10. The novel foam concrete according to claim 1, wherein: the method also comprises 150-500 parts of industrial solid wastes, namely ore particles and stone powder by mass.
11. The novel foam concrete according to claim 1, wherein: the pumice stone comprises, by mass, 150-500 parts of pumice stone particles and stone powder.
12. The novel foam concrete according to claim 1, wherein: the polyurethane composition also comprises 30-150 parts by weight of polyurethane.
13. The novel foam concrete according to claim 1, wherein: the pumice stone comprises, by mass, 150-500 parts of pumice stone particles and stone powder.
14. The novel foam concrete according to claim 1, wherein: the coating also comprises 20-100 parts of polyphenyl particles by weight.
15. A foamed concrete preform, characterized in that it is made of a foamed concrete according to any one of claims 1 to 14.
16. A method for making a lightweight filled cast in place wall as claimed in any one of claims 1 to 14, wherein: the method comprises the following steps:
s1, selecting the raw materials in the proportion of any one of the claims 1 to 14 according to the proportion, adding the raw materials except the foaming agent into a stirrer, and uniformly stirring to obtain a mixture;
s2, after uniformly stirring, putting the mixture into a stirring and transporting vehicle, transporting the mixture to a construction site for pouring;
s3, assembling and shaping the mould in a flow process by using a shaping template or a metal frame, wood, plastic and panel mould which can be recycled according to working conditions, and reinforcing the shaping mould by using pins;
and S4, adding a foaming agent into the mixture, avoiding vibration, and pouring the foamed mixture into a previously erected mold through a conveying pump for molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771138.1A CN113831150A (en) | 2021-07-08 | 2021-07-08 | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771138.1A CN113831150A (en) | 2021-07-08 | 2021-07-08 | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113831150A true CN113831150A (en) | 2021-12-24 |
Family
ID=78962850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110771138.1A Pending CN113831150A (en) | 2021-07-08 | 2021-07-08 | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113831150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773085A (en) * | 2022-04-21 | 2022-07-22 | 湖北峰峦新材料科技有限公司 | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219451A (en) * | 2011-04-13 | 2011-10-19 | 河北建筑工程学院 | Polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete and preparation method thereof |
| CN108585640A (en) * | 2018-04-25 | 2018-09-28 | 安徽海龙建筑工业有限公司 | A kind of environment friendly light concrete and preparation method thereof |
| CN112876143A (en) * | 2021-01-04 | 2021-06-01 | 衡东华宇商砼搅拌有限公司 | Self-heat-preservation high-strength environment-friendly concrete and preparation method thereof |
-
2021
- 2021-07-08 CN CN202110771138.1A patent/CN113831150A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219451A (en) * | 2011-04-13 | 2011-10-19 | 河北建筑工程学院 | Polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete and preparation method thereof |
| CN108585640A (en) * | 2018-04-25 | 2018-09-28 | 安徽海龙建筑工业有限公司 | A kind of environment friendly light concrete and preparation method thereof |
| CN112876143A (en) * | 2021-01-04 | 2021-06-01 | 衡东华宇商砼搅拌有限公司 | Self-heat-preservation high-strength environment-friendly concrete and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| MARIO COLLEPARDI 著: "《混凝土新技术》", 30 September 2008, 中国建材工业出版社 * |
| 董晓英等 主编: "《建筑材料》", 30 September 2016, 北京理工大学出版社 * |
| 黄仲华 主编: "《中国调味食品技术实用手册》", 28 February 1991, 中国标准出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773085A (en) * | 2022-04-21 | 2022-07-22 | 湖北峰峦新材料科技有限公司 | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100345791C (en) | Heat insulating glue powder material for wall and its prepn and usage | |
| CN111732375A (en) | Micro-powder foam light soil and preparation method thereof | |
| CN107572936A (en) | Polymer foamed concrete and its production and use | |
| CN105272001B (en) | A kind of haydite concrete and preparation method thereof | |
| CN103864357B (en) | A kind of premixing regeneration concrete and preparation method thereof | |
| CN106777535B (en) | Alkali-activated recycled concrete mix proportion design method and system | |
| CN112250355A (en) | Alkali-activated fly ash/slag recycled concrete and preparation method thereof | |
| CN108863268A (en) | A kind of regeneration activity material based on building waste, preparation method and non-evaporating foamed bricks | |
| CN113387620A (en) | Solidified dredged sludge block based on alkali-activated cementing material and preparation method thereof | |
| CN105732088A (en) | Novel porous brick and preparation method thereof | |
| CN113831074A (en) | Light sound-insulation terrace slurry containing polyurethane particles, preparation method and light sound-insulation terrace | |
| CN106396574A (en) | Silicon-aluminum based lightweight concrete material and preparation method thereof | |
| CN103819218B (en) | Method for producing aerated concrete block from iron tailings | |
| CN103771807A (en) | Light aggregate cell concrete self-insulating building block and preparation method thereof | |
| CN112341101A (en) | Light recycled concrete and preparation method thereof | |
| CN111253127A (en) | C30 carbon fiber broken brick recycled concrete and preparation method thereof | |
| CN105294156B (en) | A kind of resource utilization method of domestic waste incineration residue sorting tailings | |
| CN104446190A (en) | Thermal-insulation and anti-corrosion aerated brick and preparation method thereof | |
| CN104086146A (en) | Resource utilization method of mine tailings | |
| CN113831150A (en) | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall | |
| CN110105019A (en) | The method for preparing high-strength foam concrete using waste paper-making pulp, slurry | |
| CN114773085A (en) | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall | |
| CN103319199B (en) | Naturally-foamed non-autoclaved novel wall block | |
| KR100568932B1 (en) | Composition of Lightweight / Foamed Concrete and Method of Making Same | |
| CN104557124B (en) | Lightweight anti-crack concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |