CN113307580B - Phosphorus slag foam concrete and preparation method thereof - Google Patents
Phosphorus slag foam concrete and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag 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
- 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
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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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 application relates to the field of foam concrete production, and particularly discloses phosphorous slag foam concrete and a preparation method thereof. The phosphorus slag foam concrete comprises clay ceramsite, surfactant foaming agent, phosphorus slag, fly ash, rubber powder, terpene phenolic resin, water and cement; the preparation method comprises the following steps: mixing clay ceramsite, phosphorous slag and fly ash, stirring, adding cement, continuously stirring to obtain a primary mixture, mixing a surfactant foaming agent and water, stirring to obtain a foam mixture, adding the foam mixture into the primary mixture, mixing and stirring to obtain a middle mixture, adding rubber powder and terpene phenolic resin into the middle mixture, mixing, heating and stirring to obtain the phosphorous slag foam concrete. The method has the advantage of reducing the collapse of the phosphorus slag foam concrete after early pouring.
Description
Technical Field
The application relates to the field of foam concrete production, in particular to phosphorous slag foam concrete and a preparation method thereof.
Background
The foam concrete is a lightweight, heat-preservation, heat-insulation, fire-resistant, sound-insulation and frost-resistant concrete material, the slurry of the foam concrete can automatically level and self-compact, and the foam concrete has the advantages of good construction workability, convenience in pumping and leveling, better compatibility with other building materials and the like, and is widely applied at present.
In the production and manufacture of foam concrete, workers firstly need to use a foaming system of a foaming machine to mechanically foam a foaming agent fully, then mix the foam with cement slurry, and finally pump the foam by the foaming machine to mold the concrete.
At present, in order to improve the forming efficiency of foam concrete and improve the utilization rate of waste resources, a proper amount of phosphorous slag is generally added during the production of the foam concrete. The phosphorus slag foam concrete has the advantages of high condensation speed, high later strength, excellent water resistance and weather resistance and the like, and is widely applied to the building industry. However, the existing phosphorous slag foam concrete has low strength after early molding, so that the phosphorous slag foam concrete is easy to collapse after early casting, and the early casting efficiency of the phosphorous slag foam concrete in site construction is influenced to a certain extent.
Disclosure of Invention
In order to reduce the collapse of the phosphorus slag foam concrete after early pouring, the application provides the phosphorus slag foam concrete and the preparation method thereof.
In a first aspect, the present application provides a phosphorous slag foamed concrete, which adopts the following technical scheme:
a phosphorous slag foam concrete is prepared from the following raw materials in parts by weight:
clay ceramsite: 280-350 parts of a modifier;
surfactant type foaming agent: 110 to 130 portions;
phosphorus slag: 70 to 80 portions of
Fly ash: 60-80 parts;
rubber powder: 2.5-10 parts;
terpene phenolic resin: 3 to 8.5 portions of
Water: 65-100 parts of a stabilizer;
cement: 130 to 150 portions.
By adopting the technical scheme, after the glue powder and the terpene phenolic resin are added into a concrete system, a synergistic effect can be generated, the compressive strength of the phosphorous slag foam concrete during initial setting can be effectively improved, and the water absorption rate of the phosphorous slag foam concrete during initial setting can be effectively reduced, so that the purpose of reducing the water exchange inside and outside the phosphorous slag foam concrete can be achieved, and the early collapse resistance of the phosphorous slag foam concrete can be improved.
Regarding the phenomenon of performance enhancement, the inventor guesses that when the glue powder and the terpene phenolic resin are added into the raw material system at the same time, the glue powder and the terpene phenolic resin are firstly gradually and uniformly dispersed in the raw material system under the rise of temperature, meanwhile, the original air bubbles in the system are also slowly dispersed under the drive of the glue powder and the terpene phenolic resin, in addition, after a period of stirring, the temperature begins to slowly drop, at the moment, the terpene phenolic resin gradually forms a layer of resin film to cover the glue powder, so that the glue powder is gradually adhered in the gaps of the ceramsite clay aggregate to fill the gaps, the integral compressive strength of the phosphorus slag foam concrete is improved to a certain extent, meanwhile, the resin film covered on the glue powder can adsorb polar ions dissociating in the system, so that the cement and the dispersed polar ions are subjected to hydration reaction, and the generation of local hydration heat is effectively reduced, therefore, the cracking of the phosphorus slag foam concrete during molding due to excessive internal and external temperature difference can be reduced, the internal and external exchange of water can be effectively reduced by reducing the temperature cracks, the early collapse resistance of the phosphorus slag foam concrete can be further improved, and the phosphorus slag foam concrete has great economic value.
Preferably, the terpene phenolic resin accounts for 4.5-7.5 parts by weight, and the rubber powder accounts for 3-7 parts by weight.
By adopting the technical scheme, when the inventor further limits the weight parts of the terpene phenolic resin and the rubber powder, the early compressive strength of the phosphorus slag foam concrete can be further improved, and meanwhile, the water absorption of the phosphorus slag foam concrete can be more effectively reduced, so that the early collapse resistance of the phosphorus slag foam concrete can be better enhanced.
Preferably, the raw material further comprises silicone resin, and the weight part of the silicone resin is 7-15 parts.
By adopting the technical scheme, after the organic silicon resin is added, the synergistic effect between the terpene phenolic resin and the rubber powder can be better improved, so that the early compressive strength of the phosphorus slag foam concrete can be further improved, the exchange of internal and external moisture is reduced, and the early pouring efficiency of the phosphorus slag foam concrete can be further effectively improved.
Preferably, the terpene phenolic resin has a softening point of 120-140 ℃.
By adopting the technical scheme, the terpene phenolic resin with the softening point of 120-140 ℃ is selected and added, so that the synergistic effect of the terpene phenolic resin and the rubber powder can be better improved, the exchange of the moisture inside and outside the phosphorous slag foam concrete can be more effectively reduced, and the integral compressive strength of the phosphorous slag foam concrete is improved.
Preferably, the particle size of the rubber powder is 110-130 meshes.
By adopting the technical scheme, the glue powder with the particle size of 110-130 meshes is selected for adding, so that the synergistic effect of the olefine phenolic resin and the glue powder can be enhanced, and the integral compressive strength of the phosphorus slag foam concrete during early molding is improved, so that the early casting efficiency of the phosphorus slag foam concrete is effectively improved.
Preferably, the surfactant foaming agent is one of a rosin soap foaming agent, sodium dodecyl sulfate and sodium fatty alcohol polyoxyethylene ether sulfate.
By adopting the technical scheme, the early compressive strength of the phosphorus slag foam concrete can be better improved, the water absorption rate of the phosphorus slag foam concrete during early molding can be further reduced, and the purpose of reducing collapse of the phosphorus slag foam concrete during early pouring is achieved.
Preferably, the cement is complex portland white cement.
By adopting the technical scheme and selecting the composite silicate white cement, the compressive strength of the interior of the phosphorous slag foam concrete during early molding can be further effectively enhanced, and the water absorption of the phosphorous slag foam concrete can be better reduced, so that the generation of temperature cracks can be more effectively reduced, and the collapse condition of the phosphorous slag foam concrete during early pouring is reduced.
Preferably, the raw material also comprises hydroxypropyl methyl cellulose, and the weight part of the hydroxypropyl methyl cellulose is 2.3-5.5 parts.
By adopting the technical scheme, when the inventor adds the hydroxypropyl methyl cellulose into a raw material system of the phosphorus slag foam concrete, the reinforcing effect of the organic silicon resin on the synergistic effect between the terpene phenolic resin and the rubber powder can be further improved, so that the early compressive strength of the phosphorus slag foam concrete can be better improved, and the water absorption rate of the phosphorus slag foam concrete during initial setting can be reduced to a certain extent.
In a second aspect, the present application provides a method for manufacturing phosphorous slag foamed concrete, which adopts the following technical scheme: a method for manufacturing phosphorous slag foam concrete comprises the following steps:
the method comprises the following steps: mixing clay ceramsite, phosphorous slag and fly ash, stirring for 0.5-1 hour, adding cement, mixing, and continuously stirring for 0.5-1 hour to obtain a primary mixture;
step two: mixing a surfactant foaming agent and water, and then stirring for 0.5-1 hour to obtain a foam mixture, then adding the obtained foam mixture into the primary mixture, and mixing and stirring for 2.5-3 hours to obtain a middle mixture;
step three: adding the glue powder and the terpene phenolic resin into the medium mixture, mixing, heating to the temperature of 120-140 ℃, and stirring for 1.5-2 hours to obtain the phosphorus slag foam concrete.
By adopting the technical scheme, the functions of the raw materials in the system can be effectively improved, and the synergistic effect of the terpene phenolic resin and the rubber powder can be effectively enhanced, so that the water absorption of the phosphorus slag foam concrete can be effectively reduced, the temperature crack is reduced, and the early compressive strength of the phosphorus slag foam concrete is improved.
Preferably, in the third step, 7 to 15 parts by weight of silicone resin and 2.3 to 5.5 parts by weight of hydroxypropyl methylcellulose are added together.
By adopting the technical scheme, the organic silicon resin and the hydroxypropyl methyl cellulose can be added into the system together with the alkene phenolic resin and the rubber powder, so that the synergistic effect of the alkene phenolic resin and the rubber powder can be better enhanced, and the compressive strength of the phosphorous slag foam concrete during early pouring and forming can be further improved.
In summary, the present application has the following beneficial effects:
1. after the glue powder and the terpene phenolic resin are added into a concrete system, a synergistic effect is generated, the compressive strength of the phosphorus slag foam concrete during initial setting can be effectively improved, and the water absorption rate of the phosphorus slag foam concrete during initial setting can be effectively reduced, so that the aim of reducing the internal and external water exchange of the phosphorus slag foam concrete can be fulfilled, and the early collapse resistance of the phosphorus slag foam concrete can be improved;
2. after the organic silicon resin is added, the synergistic effect between the terpene phenolic resin and the rubber powder can be better improved, so that the early compressive strength of the phosphorus slag foam concrete can be further improved, the exchange of internal and external moisture is reduced, and the early pouring efficiency of the phosphorus slag foam concrete can be more effectively improved;
3. when the hydroxypropyl methyl cellulose is added into a raw material system of the phosphorus slag foamed concrete, the reinforcing effect of the organic silicon resin on the synergistic effect of the terpene phenolic resin and the rubber powder can be further improved, so that the early compressive strength of the phosphorus slag foamed concrete can be better improved, and the early water absorption of the phosphorus slag foamed concrete can be reduced to a certain extent.
Detailed Description
The present application will be described in further detail with reference to examples.
TABLE 1 sources and types of raw materials
Example 1
The phosphorous slag foam concrete is prepared by the following steps:
the method comprises the following steps: mixing 350kg of clay ceramsite, 70kg of phosphorous slag and 80kg of fly ash, stirring for 1 hour at the rotating speed of 120r/min, then adding 150kg of ordinary portland cement, mixing, continuing to stir for 0.5 hour at the rotating speed of 150r/min to obtain a primary mixture;
step two: mixing 110kg of rosin soap foaming agent and 65kg of water, stirring for 0.5 hour at the rotating speed of 130r/min to obtain a foam mixture, and then adding the obtained foam mixture into the primary mixture at the rotating speed of 100r/min, and mixing and stirring for 2.5 hours to obtain a medium mixture;
step three: adding 2.5kg of terpene phenolic resin with softening point of 90-110 ℃ and weight of 8.5kg and rubber powder with particle size of 80-100 meshes into the medium mixture, mixing and heating to 120 ℃, rotating at 110r/min, and stirring for 1.5 hours to obtain the phosphorous slag foam concrete.
Example 2
The phosphorous slag foam concrete is prepared by the following steps:
the method comprises the following steps: mixing 280kg of clay ceramsite, 80kg of phosphorous slag and 60kg of fly ash, stirring for 0.75 hour at the rotating speed of 120r/min, adding 130kg of pozzolanic portland cement, mixing, continuing stirring for 1 hour at the rotating speed of 150r/min to obtain a primary mixture;
step two: mixing 130kg of sodium dodecyl sulfate and 100kg of water, stirring for 1 hour at a rotating speed of 130r/min to obtain a foam mixture, adding the obtained foam mixture into the primary mixture, and stirring for 3 hours at a rotating speed of 100r/min to obtain a medium mixture;
step three: adding 10kg of rubber powder with the particle size of 90-110 meshes and the weight and 3kg of terpene phenolic resin with the softening point of 100-120 ℃ into the medium mixture, mixing and heating to 140 ℃, rotating at the speed of 110r/min, and stirring for 2 hours to obtain the phosphorus slag foam concrete.
Example 3
The phosphorous slag foam concrete is prepared by the following steps:
the method comprises the following steps: mixing 310kg of clay ceramsite, 77kg of phosphorous slag and 68kg of fly ash, stirring for 0.5 hour at the rotating speed of 120r/min, adding 140kg of slag portland cement, mixing, continuing to stir for 0.75 hour at the rotating speed of 150r/min to obtain a primary mixture;
step two: mixing 128kg of fatty alcohol-polyoxyethylene ether sodium sulfate and 83kg of water, stirring for 0.8 hour at a rotation speed of 130r/min to obtain a foam mixture, adding the obtained foam mixture into the initial mixture at a rotation speed of 100r/min, and mixing and stirring for 2.65 hours to obtain a medium mixture;
step three: adding glue powder with the particle size of 120-140 meshes and the weight of 8kg and terpene phenolic resin with the softening point of 130-150 ℃ and the weight of 7.5kg into the medium mixture, mixing and heating to 135 ℃, rotating at the speed of 110r/min, and stirring for 1.75 hours to obtain the phosphorus slag foam concrete.
Example 4
A phosphorus slag foamed concrete is different from that in example 3 in that the input amount of rubber powder is 3kg, and the input amount of terpene phenolic resin is 7.5 kg.
Example 5
A phosphorus slag foamed concrete is different from that in example 3 in that the input amount of the rubber powder is 7kg, and the input amount of the terpene phenolic resin is 4.5 kg.
Example 6
A phosphorous slag foamed concrete is different from that in example 3 in that the input amount of the rubber powder is 5kg, and the input amount of the terpene phenolic resin is 6 kg.
Example 7
A phosphorus slag foamed concrete is different from the embodiment 6 in that the raw materials also comprise organic silicon resin, and in the third step, the organic silicon resin with the mass of 15kg is added together.
Example 8
A phosphorus slag foamed concrete is different from the embodiment 6 in that the raw materials also comprise organic silicon resin, and in the third step, organic silicon resin with the mass of 7kg is added together.
Example 9
A phosphorus slag foamed concrete is different from the embodiment 6 in that the raw materials also comprise organic silicon resin, and in the third step, organic silicon resin with the mass of 10kg is added together.
Example 10
A phosphorus slag foam concrete is different from the embodiment 9 in that the softening point of the terpene phenolic resin is 120-140 ℃.
Example 11
A phosphorus slag foamed concrete is different from the embodiment 10 in that the particle size of rubber powder is 110-130 meshes.
Example 12
A phosphorous slag foamed concrete differs from example 11 in that the Portland slag cement is replaced by an equal amount of composite Portland white cement.
Example 13
A phosphorus slag foamed concrete, which is different from that in example 12 in that the raw material further comprises hydroxypropyl methylcellulose, and in the third step, 5.5kg of hydroxypropyl methylcellulose is added together.
Example 14
A phosphorus slag foamed concrete, which is different from that of example 12 in that the raw material further comprises hydroxypropyl methyl cellulose, and in the third step, hydroxypropyl methyl cellulose with the mass of 2.3kg is added together.
Example 15
A phosphorus slag foamed concrete, which is different from that of example 12 in that the raw material further comprises hydroxypropyl methyl cellulose, and in the third step, 4.8kg of hydroxypropyl methyl cellulose is added.
Comparative example
Comparative example 1
A phosphorus slag foam concrete is different from the phosphorus slag foam concrete in the embodiment 3 in that rubber powder is replaced by clay ceramsite with the same quantity.
Comparative example 2
A phosphorus slag foam concrete is different from the phosphorus slag foam concrete in example 3 in that the terpene phenolic resin is replaced by the same amount of clay ceramsite.
Comparative example 3
The phosphorus slag foam concrete is different from the phosphorus slag foam concrete in example 3 in that the rubber powder and the terpene phenolic resin are replaced by the same amount of clay ceramsite.
Performance test
The compressive strength (MPa) of the phosphorous slag foamed concrete prepared in examples 1-15 and comparative examples 1-3 at the initial setting time of 24h is tested by JC/T1062-2007 foam concrete Block.
GB/T11970-1997 test method for aerated concrete volume density, water content and water absorption rate is adopted to test the water absorption rate (%) of the phosphorus slag foam concrete prepared in the examples 1-15 and the comparative examples 1-3 at the initial setting time of 24 h.
TABLE 2 summary of test data for examples 1-15 and comparative examples 1-3
According to comparison of the test data of the example 3 and the comparative examples 1 to 3 in the table 2, the rubber powder and the terpene phenolic resin are added into the raw material system, so that the synergistic effect of the rubber powder and the terpene phenolic resin can be utilized, the compressive strength of the phosphorous slag foamed concrete during initial setting can be effectively improved, the water absorption rate of the phosphorous slag foamed concrete during initial setting can be reduced, and the collapse of the phosphorous slag foamed concrete during initial setting can be reduced.
As shown by comparing the test data of examples 3 to 6 in Table 2, when the input amounts of the rubber powder and the terpene phenolic resin are further limited, the compressive strength of the phosphorous slag foamed concrete during initial setting can be effectively improved, and the water absorption rate during initial setting can be further reduced, so that the generation of temperature cracks can be effectively reduced, and the internal mechanical properties of the phosphorous slag foamed concrete during initial setting can be enhanced to a certain extent.
According to the comparison of the test data of the examples 6 to 9 in the table 2, the organic silicon resin is added into the raw material system, and the addition amount of the organic silicon resin is limited, so that the water absorption rate of the phosphorus slag foam concrete during initial setting can be reduced, and the compressive strength of the phosphorus slag foam concrete during initial setting can be improved better, so that the purpose of reducing the collapse of the phosphorus slag foam concrete is achieved.
According to the comparison of the test data of the examples 9 to 10 in the table 2, when the softening point of the terpene phenolic resin is controlled in a specified range, the compressive strength of the phosphorus slag foamed concrete during initial setting can be further improved, and the water absorption rate can be more effectively reduced, so that the situation that the phosphorus slag foamed concrete collapses during pouring can be more favorably reduced.
According to the comparison of the test data of the examples 10 to 11 in the table 2, when the particle size of the rubber powder is controlled in a specified range, the synergistic effect between the terpene phenolic resin and the rubber powder can be better improved, so that the compressive strength of the phosphorous slag foamed concrete during initial setting can be further improved, the water absorption rate of the phosphorous slag foamed concrete during initial setting can be more effectively reduced, and the early pouring efficiency of the phosphorous slag foamed concrete can be further improved to a certain extent.
As shown by comparison of test data of examples 11-12 in Table 2, the water absorption of the phosphorous slag foamed concrete during initial setting can be more effectively reduced by adding the composite silicate white cement, so that the compressive strength of the phosphorous slag foamed concrete during initial setting can be better enhanced by reducing the generation of temperature cracks, and the early collapse resistance of the phosphorous slag foamed concrete can be more favorably improved.
According to the comparison of the test data of the examples 12 to 15 in the table 2, by further adding hydroxypropyl methylcellulose into the raw material system and controlling the input amount of hydroxypropyl methylcellulose, the compressive strength of the phosphorus slag foam concrete during initial setting can be more effectively enhanced, and the purpose of further reducing the water absorption rate can be achieved, so that the early-stage pouring efficiency of the phosphorus slag foam concrete can be improved to a certain extent, and the method has great economic value.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (7)
1. The phosphorus slag foamed concrete is characterized by being prepared from the following raw materials in parts by weight:
clay ceramsite: 280-350 parts of a modifier;
surfactant type foaming agent: 110 to 130 portions;
phosphorus slag: 70 to 80 portions of
Fly ash: 60-80 parts;
rubber powder: 2.5-10 parts;
terpene phenolic resin: 3 to 8.5 portions of
Water: 65-100 parts of a stabilizer;
cement: 130-150 parts;
silicone resin: 7-15 parts;
hydroxypropyl methylcellulose: 2.3 to 5.5 portions.
2. The phosphorous slag foamed concrete according to claim 1, characterized in that: the terpene phenolic resin accounts for 4.5-7.5 parts by weight, and the rubber powder accounts for 3-7 parts by weight.
3. The phosphorous slag foamed concrete according to claim 2, wherein: the softening point of the terpene phenolic resin is 120-140 ℃.
4. The phosphorous slag foamed concrete according to claim 2, wherein: the particle size of the rubber powder is 110-130 meshes.
5. The phosphorous slag foamed concrete according to claim 1, wherein: the surfactant foaming agent is one of rosin soap foaming agent, lauryl sodium sulfate and fatty alcohol-polyoxyethylene ether sodium sulfate.
6. The phosphorous slag foamed concrete according to claim 1, characterized in that: the cement is composite silicate white cement.
7. A method for manufacturing the phosphorous slag foamed concrete for preparing the phosphorous slag foamed concrete according to any one of claims 1 to 6, comprising the steps of:
the method comprises the following steps: mixing clay ceramsite, phosphorous slag and fly ash, stirring for 0.5-1 hour, adding cement, mixing, and continuously stirring for 0.5-1 hour to obtain a primary mixture;
step two: mixing a surfactant foaming agent and water, stirring for 0.5-1 hour to obtain a foam mixture, adding the obtained foam mixture into the initial mixture, and mixing and stirring for 2.5-3 hours to obtain a medium mixture;
step three: adding the glue powder, the terpene phenolic resin, the organic silicon resin and the hydroxypropyl methyl cellulose into the mixed material, mixing, heating to the temperature of 120-140 ℃, and stirring for 1.5-2 hours to obtain the phosphorus slag foam concrete.
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|---|---|---|---|---|
| JP3769911B2 (en) * | 1997-12-24 | 2006-04-26 | 宇部興産株式会社 | Method for producing mortar composition |
| CN103508712B (en) * | 2012-06-28 | 2015-06-24 | 沈阳红姗石建筑装饰材料有限公司 | High-performance cast-in-place foam concrete and preparation method thereof |
| CN105732089B (en) * | 2016-03-10 | 2018-06-05 | 湖北工业大学 | A kind of preparation method suitable for alkali phosphorus slag cast-in-place foamed concrete |
| CN108909066A (en) * | 2018-07-11 | 2018-11-30 | 苏州福高保温科技有限公司 | A kind of preparation method of the high fire line coagulation soil matrix foam heat-insulating board of high-strength light |
| CN110183183A (en) * | 2019-06-04 | 2019-08-30 | 贵州中建建筑科研设计院有限公司 | A kind of coarse granule phosphorus ore slag high-tenacity fiber concrete and preparation method |
| CN112851191B (en) * | 2021-01-13 | 2022-10-14 | 武汉源锦建材科技有限公司 | Compact anti-cracking waterproof agent for inhibiting early cracking of concrete and preparation method thereof |
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