CN113443864A - Lightweight concrete with strong waterproof performance and production process thereof - Google Patents
Lightweight concrete with strong waterproof performance and production process thereof Download PDFInfo
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- CN113443864A CN113443864A CN202110320282.3A CN202110320282A CN113443864A CN 113443864 A CN113443864 A CN 113443864A CN 202110320282 A CN202110320282 A CN 202110320282A CN 113443864 A CN113443864 A CN 113443864A
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- concrete
- lightweight concrete
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- waterproof performance
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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
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a lightweight concrete with strong waterproof performance and a production process thereof, wherein the lightweight concrete comprises the following components: water; cement; foaming agent, stone powder; anti-crack fibers; wood flour; foaming; pulverized coal slag; iron bars; grit, compare in current traditional lightweight concrete, lie in the use of foam ball among this technical scheme, wherein, the effect that the saw-dust played in lightweight concrete has very strong water absorption capacity after its thorough drying, when having who infiltrates on the lightweight concrete surface, partly water can be absorbed by dry saw-dust gradually, wherein the use of ironbar, lie in playing quick heat absorption, bear the insolateing with the concrete after, the heat that the foam ball absorbed carries out the quick transfer, avoid the too big damage that causes the concrete of foam ball inflation, and simultaneously, the ironbar can also carry out oxidation reaction when using, absorb remaining moisture in the saw-dust, conveniently carry out the work of next absorption moisture.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to lightweight concrete with strong waterproof performance and a production process thereof.
Background
The foamed concrete is a novel light heat-insulating material containing a large number of closed air holes, which is formed by fully foaming a foaming agent in a mechanical mode through a foaming system of a foaming machine, uniformly mixing the foam with cement slurry, then carrying out cast-in-place construction or mould forming through a pumping system of the foaming machine and carrying out natural curing; the foaming concrete is a double-sleeve polymer with a continuous structure and containing uniform air holes, wherein the foaming agent, cement, fly ash, stone powder and the like are stirred into an organic cementing material; the foamed concrete is used for roof heat preservation slope finding, ground heat preservation cushion layer, upturned beam foundation pit filling, wall body pouring and other energy-saving materials.
With the vigorous implementation of the energy-saving policy of buildings in China, materials used in modern buildings are required to have the properties of light weight, high strength, heat preservation, heat insulation, waste utilization, energy conservation and the like. As a novel building material, the foam concrete has the properties, is increasingly widely applied to modern building engineering, and before, the lightweight aggregate concrete is widely applied to industrial and civil buildings and other engineering, so that the benefits of reducing the dead weight of the structure, improving the seismic performance of the structure, saving the material consumption, improving the component transportation and hoisting efficiency, reducing the foundation load, improving the building functions (heat preservation, heat insulation, fire resistance and the like) and the like are achieved.
The existing lightweight concrete has various effects, namely, the functions of sound insulation, heat absorption and water absorption are realized, the functions of water absorption and water insulation are particularly important, and particularly when the lightweight concrete is used as an outer wall, the water absorption and water insulation performance of the lightweight concrete has great influence on the whole wall surface and a house, so that the water absorption and water insulation performance of the lightweight concrete is improved day by day and is a difficult problem to be solved by the prior lightweight concrete.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the lightweight concrete with strong waterproof performance and the production process thereof, and solves the problems mentioned in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the lightweight concrete with strong waterproof performance comprises the following components:
water;
cement;
a foaming agent,
Stone powder;
anti-crack fibers;
wood flour;
foaming;
pulverized coal slag;
iron bars;
sand and stone.
Preferably, the components comprise, by weight, 50 parts of water, 100 parts of cement, 10 parts of a foaming agent, 4 parts of stone powder, 2 parts of pulverized coal slag, 30 parts of sandstone, 8 parts of anti-crack fibers, 5 parts of foam, 0.1 part of iron bars and 10 parts of wood powder.
Preferably, the wood flour is made of highly dehydrated waste wood.
Preferably, the iron strip is a hard iron wire with the length of 3-5cm and the diameter of 5 mm.
Preferably, the foam is a regular or irregular spherical particle with a diameter of 2-4 cm.
Compared with the traditional lightweight concrete, the foam ball in the technical scheme is used, wherein the wood chips in the lightweight concrete have strong water absorption performance after being completely dried, when the lightweight concrete has water permeating on the surface, part of water can be gradually absorbed by the dried wood chips, the iron bars are used for absorbing heat quickly, the heat absorbed by the foam ball is quickly transferred after the concrete is exposed to the sun, the concrete is prevented from being damaged due to overlarge expansion of the foam ball, meanwhile, the iron bars can be subjected to oxidation reaction when being used, the water remained in the wood chips is absorbed, the next work of absorbing the water is convenient to carry out, the design that the wood chips are wrapped by the foam ball is mainly utilized, the foam ball has a certain elastic space, so that the wood chips can have a certain space to expand when absorbing the water and expanding, the damage of concrete caused by directly applying force on the concrete is avoided.
A preparation process of lightweight concrete with strong waterproof performance comprises the following steps:
screening stone powder, gravel and pulverized coal slag to obtain various fine raw materials, and pouring the raw materials into stirring equipment for stirring and mixing for later use;
mixing water and cement according to the proportion, and placing the mixture in a stirring device for stirring and mixing to obtain thinner cement paste;
step three, continuing the stirring action of the step two, slowly adding the mixed raw material prepared in the step one in the stirring process, reducing the stirring speed in the adding process, but not stopping the stirring action until the mixed raw material is stirred and mixed into the cement paste;
step four, adding the anti-crack fibers into the mixture again after the step three is completed, slowly adding the anti-crack fibers when the anti-crack fibers are added, and adding the anti-crack fibers after the anti-crack fibers floating on the surface layer sink into the bottom layer until the anti-crack fibers in the mixture ratio are added;
step five, adding a foaming agent into the step four, and then continuing stirring until the water in the mixture does not overflow the surface of the concrete any more;
step six, carrying out melting treatment on the foam, simultaneously mixing the proportioned wood powder and the iron bars, and then uniformly stirring the mixture by using stirring equipment;
step seven, preparing the molten foam obtained in the step six into individual particles through an extruder, then dripping a mixture of wood powder and iron bars, and finally continuously stirring to form spherical particles, wherein the inner cavities of the spherical particles are wrapped with wood chips, and the outer surfaces of the spherical particles are punctured with the iron bars;
and step eight, pouring the particles prepared in the step seven into the concrete raw material prepared in the step five, continuously stirring, and performing pouring molding operation to prepare the light concrete.
(III) advantageous effects
The invention provides a lightweight concrete with strong waterproof performance and a production process thereof, and the lightweight concrete has the following beneficial effects:
compared with the traditional lightweight concrete, the lightweight concrete with strong waterproof performance is characterized in that the foam ball is used in the technical scheme, wherein the sawdust plays a role in the lightweight concrete and has strong water absorption performance after being thoroughly dried, when the lightweight concrete permeates into the surface, part of water can be gradually absorbed by the dried sawdust, the iron bar is used to absorb heat quickly after the concrete is exposed to the sun, the heat absorbed by the foam ball is quickly transferred to avoid the damage to the concrete caused by the excessive expansion of the foam ball, meanwhile, the iron bar can also perform oxidation reaction when being used to absorb the residual moisture in the sawdust, so that the next work of absorbing the moisture is convenient to perform, the sawdust is wrapped by the foam ball, and the foam ball is mainly utilized to have a certain elastic space, therefore, wood powder can have a certain space to enable the wood powder to expand when absorbing moisture, and damage to concrete caused by direct force applied to the concrete is avoided.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
The lightweight concrete with strong waterproof performance comprises the following components:
water;
cement;
a foaming agent,
Stone powder;
anti-crack fibers;
wood flour;
foaming;
pulverized coal slag;
iron bars;
the concrete comprises 50 parts of water, 100 parts of cement, 10 parts of foaming agent, 4 parts of stone powder, 2 parts of pulverized coal slag, 30 parts of gravel, 8 parts of anti-crack fiber, 5 parts of foam, 0.1 part of iron bar and 10 parts of wood powder, wherein the wood powder is made of highly dehydrated waste wood, the iron bar is a hard iron wire with the length of 3-5cm and the diameter of 5mm, the foam is regular or irregular spherical particles with the diameter of 2-4cm, compared with the conventional light concrete, the foam ball is used in the technical scheme, the wood chips in the light concrete play a role in having strong water absorption performance after being completely dried, when the surface of the light concrete has infiltrated, part of water can be gradually absorbed by the dried wood chips, and the use of the iron bar plays a role in quickly absorbing heat after the concrete is exposed to the sun, the absorptive heat of foam ball shifts fast, avoid the too big damage that causes the concrete of foam ball inflation, and simultaneously, the ironbar is when using, can also carry out oxidation reaction, absorb remaining moisture in the saw-dust, conveniently carry out the work of next absorption moisture, adopt the foam ball to wrap up the design of saw-dust, it has certain elasticity space mainly to utilize the foam ball, wood flour will have certain space to let it take place the inflation action when absorbing moisture production inflation like this, avoid directly exerting force on the concrete, cause the damage of concrete.
A preparation process of lightweight concrete with strong waterproof performance comprises the following steps:
screening stone powder, gravel and pulverized coal slag to obtain various fine raw materials, and pouring the raw materials into stirring equipment for stirring and mixing for later use;
mixing water and cement according to the proportion, and placing the mixture in a stirring device for stirring and mixing to obtain thinner cement paste;
step three, continuing the stirring action of the step two, slowly adding the mixed raw material prepared in the step one in the stirring process, reducing the stirring speed in the adding process, but not stopping the stirring action until the mixed raw material is stirred and mixed into the cement paste;
step four, adding the anti-crack fibers into the mixture again after the step three is completed, slowly adding the anti-crack fibers when the anti-crack fibers are added, and adding the anti-crack fibers after the anti-crack fibers floating on the surface layer sink into the bottom layer until the anti-crack fibers in the mixture ratio are added;
step five, adding a foaming agent into the step four, and then continuing stirring until the water in the mixture does not overflow the surface of the concrete any more;
step six, carrying out melting treatment on the foam, simultaneously mixing the proportioned wood powder and the iron bars, and then uniformly stirring the mixture by using stirring equipment;
step seven, preparing the molten foam obtained in the step six into individual particles through an extruder, then dripping a mixture of wood powder and iron bars, and finally continuously stirring to form spherical particles, wherein the inner cavities of the spherical particles are wrapped with wood chips, and the outer surfaces of the spherical particles are punctured with the iron bars;
and step eight, pouring the particles prepared in the step seven into the concrete raw material prepared in the step five, continuously stirring, and performing pouring molding operation to prepare the light concrete.
The lightweight concrete with strong waterproof performance is produced by the following steps: screening stone powder, gravel and pulverized coal slag to obtain various fine raw materials, and pouring the raw materials into stirring equipment for stirring and mixing for later use; mixing water and cement according to the proportion, and placing the mixture in a stirring device for stirring and mixing to obtain thinner cement paste; step three, continuing the stirring action of the step two, slowly adding the mixed raw material prepared in the step one in the stirring process, reducing the stirring speed in the adding process, but not stopping the stirring action until the mixed raw material is stirred and mixed into the cement paste; step four, adding the anti-crack fibers into the mixture again after the step three is completed, slowly adding the anti-crack fibers when the anti-crack fibers are added, and adding the anti-crack fibers after the anti-crack fibers floating on the surface layer sink into the bottom layer until the anti-crack fibers in the mixture ratio are added; step five, adding a foaming agent into the step four, and then continuing stirring until the water in the mixture does not overflow the surface of the concrete any more; step six, carrying out melting treatment on the foam, simultaneously mixing the proportioned wood powder and the iron bars, and then uniformly stirring the mixture by using stirring equipment; step seven, preparing the molten foam obtained in the step six into individual particles through an extruder, then dripping a mixture of wood powder and iron bars, and finally continuously stirring to form spherical particles, wherein the inner cavities of the spherical particles are wrapped with wood chips, and the outer surfaces of the spherical particles are punctured with the iron bars; and step eight, pouring the particles prepared in the step seven into the concrete raw material prepared in the step five, continuously stirring, and performing pouring molding operation to prepare the light concrete.
Compared with the traditional lightweight concrete, the lightweight concrete with strong waterproof performance has the advantages that the foam ball in the technical scheme is used, the sawdust in the lightweight concrete has strong water absorption performance after being thoroughly dried, when the lightweight concrete has infiltration on the surface, part of water can be gradually absorbed by the dried sawdust, the iron bars are used to absorb heat quickly, the heat absorbed by the foam ball is quickly transferred after the concrete is exposed to the sun, the concrete is prevented from being damaged due to overlarge expansion of the foam ball, meanwhile, the iron bars can be subjected to oxidation reaction when being used, the moisture remained in the sawdust can be absorbed, the next work of absorbing moisture is convenient to carry out, the design that the sawdust is wrapped by the foam ball is adopted, and the foam ball has a certain elastic space, therefore, wood powder can have a certain space to enable the wood powder to expand when absorbing water, and the damage of concrete caused by directly applying force on the concrete is avoided
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The lightweight concrete with strong waterproof performance is characterized by comprising the following components:
water;
cement;
a foaming agent,
Stone powder;
anti-crack fibers;
wood flour;
foaming;
pulverized coal slag;
iron bars;
sand and stone.
2. The lightweight concrete with strong waterproof performance according to claim 1, characterized in that: the components comprise, by weight, 50 parts of water, 100 parts of cement, 10 parts of a foaming agent, 4 parts of stone powder, 2 parts of pulverized coal slag, 30 parts of sandstone, 8 parts of anti-crack fibers, 5 parts of foam, 0.1 part of iron bars and 10 parts of wood powder.
3. The lightweight concrete with strong waterproof performance according to claim 1, characterized in that: the wood flour is made of highly dehydrated waste wood.
4. The lightweight concrete with strong waterproof performance according to claim 1, characterized in that: the iron bar is a hard iron wire with the length of 3-5cm and the diameter of 5 mm.
5. The lightweight concrete with strong waterproof performance according to claim 1, characterized in that: the foam is regular or irregular spherical particles with the diameter of 2-4 cm.
6. The preparation process of the lightweight concrete with strong waterproof performance is characterized by comprising the following steps:
screening stone powder, gravel and pulverized coal slag to obtain various fine raw materials, and pouring the raw materials into stirring equipment for stirring and mixing for later use;
mixing water and cement according to the proportion, and placing the mixture in a stirring device for stirring and mixing to obtain thinner cement paste;
step three, continuing the stirring action of the step two, slowly adding the mixed raw material prepared in the step one in the stirring process, reducing the stirring speed in the adding process, but not stopping the stirring action until the mixed raw material is stirred and mixed into the cement paste;
step four, adding the anti-crack fibers into the mixture again after the step three is completed, slowly adding the anti-crack fibers when the anti-crack fibers are added, and adding the anti-crack fibers after the anti-crack fibers floating on the surface layer sink into the bottom layer until the anti-crack fibers in the mixture ratio are added;
step five, adding a foaming agent into the step four, and then continuing stirring until the water in the mixture does not overflow the surface of the concrete any more;
step six, carrying out melting treatment on the foam, simultaneously mixing the proportioned wood powder and the iron bars, and then uniformly stirring the mixture by using stirring equipment;
step seven, preparing the molten foam obtained in the step six into individual particles through an extruder, then dripping a mixture of wood powder and iron bars, and finally continuously stirring to form spherical particles, wherein the inner cavities of the spherical particles are wrapped with wood chips, and the outer surfaces of the spherical particles are punctured with the iron bars;
and step eight, pouring the particles prepared in the step seven into the concrete raw material prepared in the step five, continuously stirring, and performing pouring molding operation to prepare the light concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110320282.3A CN113443864A (en) | 2021-03-25 | 2021-03-25 | Lightweight concrete with strong waterproof performance and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110320282.3A CN113443864A (en) | 2021-03-25 | 2021-03-25 | Lightweight concrete with strong waterproof performance and production process thereof |
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| CN113443864A true CN113443864A (en) | 2021-09-28 |
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| CN202110320282.3A Pending CN113443864A (en) | 2021-03-25 | 2021-03-25 | Lightweight concrete with strong waterproof performance and production process thereof |
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Citations (8)
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-
2021
- 2021-03-25 CN CN202110320282.3A patent/CN113443864A/en active Pending
Patent Citations (8)
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| JP2003079266A (en) * | 2001-09-07 | 2003-03-18 | Kenji Shinohara | Concrete member for cleaning water and improving seabed |
| CN101012120A (en) * | 2007-01-10 | 2007-08-08 | 谢涛 | Ecological inorganic composite architectural materials |
| CN101255042A (en) * | 2008-04-11 | 2008-09-03 | 清华大学 | Mortar and concrete modified by emulsified asphalt |
| CN101736854A (en) * | 2008-11-05 | 2010-06-16 | 肖志永 | Light prefabricated sheet material for building |
| CN102557530A (en) * | 2010-12-09 | 2012-07-11 | 龚志祥 | Special concrete for road bends |
| UA95589C2 (en) * | 2010-12-28 | 2011-08-10 | Валентин Миколайович Міщенко | Waterproofing composition |
| CN106336168A (en) * | 2016-08-23 | 2017-01-18 | 珠海华科建筑工程技术有限公司 | Inner core plate and wallboard prepared from inner core plate |
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Non-Patent Citations (1)
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Application publication date: 20210928 |