CN111217575A - Preparation method of foam light soil and foam light soil - Google Patents
Preparation method of foam light soil and foam light soil Download PDFInfo
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- CN111217575A CN111217575A CN202010080844.7A CN202010080844A CN111217575A CN 111217575 A CN111217575 A CN 111217575A CN 202010080844 A CN202010080844 A CN 202010080844A CN 111217575 A CN111217575 A CN 111217575A
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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
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/106—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
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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
- C04B2111/2092—Resistance against biological degradation
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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
Abstract
The invention discloses a preparation method of foam light soil and the foam light soil, the foam light soil comprises an admixture, a cementing material, a chemical adjuvant, an active silicon-aluminum material and a camphene-2 powder agent, and the preparation method comprises the following steps: the mass ratio of the admixture is 25 to 40 percent; the mass ratio of the cementing material is 40-65%; the mass percentage of the chemical auxiliary agent is 3-21%; the mass ratio of the active silicon-aluminum material is 1-5%; the cementing material comprises cement clinker, calcium oxide and bone glue powder, and the mass ratio of the three components in the cementing material is 2:3: 1. The invention also discloses a preparation method of the foam light soil, which comprises the following steps: premixing raw materials; preparing slurry; adding a foaming agent; forming a green body; and (5) drying. The embodiment of the invention effectively relieves the tension of energy utilization, and can also ensure that the foamed lightweight soil has high strength, less moisture, quick drying, good bonding and shaping and convenient use.
Description
Technical Field
The invention relates to the technical field of building industry, in particular to a preparation method of foam light soil and the foam light soil.
Background
The foamed light soil is a foamed product which is formed by introducing air or gases such as nitrogen, carbon dioxide, oxygen and the like into a foamed raw stock through a chemical or physical mode according to application requirements and reasonably curing and forming, contains a large amount of fine closed air holes and has considerable strength.
At present, cement, sand and stones are added with additives and water to prepare foamed lightweight soil in the building industry of China, and the foamed lightweight soil is applied to frame structures in civil engineering and buildings. The existing foamed light soil mainly takes cement as a main material, the cement is directly used as a cementing material, the cement accounts for a relatively heavy proportion in the whole foamed light soil, and the existing foamed light soil is widely applied to buildings or road foundations, easily causes cockroach aggregation, and cannot play a good protection role.
Disclosure of Invention
Aiming at the defects of the existing foam light soil, the invention provides a preparation method of the foam light soil and the foam light soil, which play a certain insect-proof role by preparing the foam light soil containing the camphor-2 powder.
The invention provides a foamed light soil, which comprises an admixture, a cementing material, a chemical auxiliary agent, an active silicon-aluminum substance material and a camphene-2 powder agent, and comprises the following components:
the mass ratio of the admixture is 25 to 40 percent;
the mass ratio of the cementing material is 40-65%;
the mass percentage of the chemical auxiliary agent is 3-21%;
the mass ratio of the active silicon-aluminum material is 1-5%;
the weight percentage of the camphor-2 powder agent is 0.01 percent to 0.05 percent;
the cementing material comprises cement clinker, calcium oxide and bone glue powder, and the mass ratio of the three components in the cementing material is 2:3: 1;
the admixture is formed by mixing one or two of fly ash, wet ash or spontaneous combustion coal gangue;
the active silicon-aluminum material is composed of fly ash and metakaolin, and the mass ratio of the fly ash to the metakaolin is 1.5-2.4.
The chemical auxiliary comprises sodium sulfate and sodium benzene dodecanesulphonate, wherein the mass ratio of the sodium sulfate in the chemical auxiliary is 20-75%, and the mass ratio of the sodium benzene dodecanesulphonate in the chemical auxiliary is 3-18%.
The chemical auxiliary agent also comprises polyvinyl alcohol, and the mass ratio of the polyvinyl alcohol in the chemical auxiliary agent is 6-43%.
The chemical auxiliary agent also comprises triethanolamine, and the mass ratio of the triethanolamine in the chemical auxiliary agent is 2-28%.
Correspondingly, the invention also provides a preparation method of the foamed lightweight soil, which comprises the following steps:
(1) premixing raw materials, namely uniformly mixing an admixture, a cementing material and an active silicon-aluminum substance material according to a certain proportion to obtain a mixture;
(2) preparing slurry, namely stirring the mixture in a chemical auxiliary agent at 2000-3000 rpm for 110-160 s to obtain uniform modified slurry;
(3) adding a foaming agent, adding the foaming agent into the modified slurry, stirring at 2000-3000 rpm for 15-30 s, and adding a camphor-2 powder agent during stirring;
(4) molding a green body, quickly injecting the prepared slurry into a mold, standing for foaming, and demolding and maintaining to obtain a foam green body;
(5) and (4) drying, namely cutting the foam blank maintained for a certain period into regular sizes for drying treatment.
And after the demolding time of demolding curing is 24 hours, the curing period is 2 to 8 days, and the curing temperature is 18 to 22 ℃.
The drying temperature is 50-100 ℃, and the drying time is 6-10 hours.
The cementing material of the invention adopts cement clinker, calcium oxide and bone glue, thereby avoiding using a large amount of cement, reducing the necessary coal resources during the production of the cement, effectively relieving the tension energy utilization, and also ensuring that the foamed lightweight soil has high strength, less moisture, quick drying, good bonding and shaping and convenient use. Because the admixture in the embodiment is a mixture of various industrial wastes and soil, the waste can be changed into valuable, the maintenance is simple, and the timeliness is good. In the whole implementation process, the camphor-2 powder is added, so that the insect aggregation phenomenon can be effectively prevented, and the method can be widely applied to civil engineering roads and buildings in south.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow chart of a method for preparing foamed lightweight soil according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The foamed light soil provided by the embodiment of the invention comprises an admixture, a cementing material, a chemical auxiliary agent, an active silicon-aluminum material and a camphene-2 powder agent, wherein:
the mass ratio of the admixture is 25 to 40 percent;
the mass ratio of the cementing material is 40-65%;
the mass percentage of the chemical auxiliary agent is 3-21%;
the mass ratio of the active silicon-aluminum material is 1-5%;
the weight percentage of the camphor-2 powder agent is 0.01 percent to 0.05 percent;
the cementing material comprises cement clinker, calcium oxide and bone glue powder, wherein the mass ratio of the three components in the cementing material is 2:3: 1;
the admixture is formed by mixing one or two of fly ash, wet ash or coal gangue after spontaneous combustion;
the active silicon-aluminum material consists of fly ash and metakaolin, and the mass ratio of the fly ash to the metakaolin is 1.5-2.4.
It is noted that the admixture is formed by mixing one or two or more of aeolian sandy soil, sand, loam and clay.
It is noted that the chemical adjuvant includes sodium sulfate and sodium benzene dodecanesulphonate, the mass ratio of the sodium sulfate in the chemical adjuvant is 20% to 75%, and the mass ratio of the sodium benzene sulphonate in the chemical adjuvant is 3% to 18%.
The chemical adjuvant may further include polyvinyl alcohol, and the mass ratio of the polyvinyl alcohol in the chemical adjuvant is 6% to 43%. Or the chemical auxiliary agent can also comprise triethanolamine, and the mass ratio of the triethanolamine in the chemical auxiliary agent is 2-28%.
The foam in the foam lightweight soil accounts for 0 to 50 percent of the volume ratio of the foam lightweight soil, and the foam is formed by physical foaming of a foaming agent and meets the requirement of apparent density of 20kg/m3—60kg/m3Any value in between, and the performance is stable.
Specific example 1:
the mass percentage of the admixture is about 30%, the mass percentage of the cementing material is about 60%, the mass percentage of the chemical auxiliary agent is about 8%, the mass percentage of the active silicon-aluminum material is about 2%, and the mass percentage of the camphor-2 powder agent is about 0.01%.
Wherein:
the cementing material comprises cement clinker, calcium oxide and bone glue powder, and the mass ratio of the three components in the cementing material is 2:3: 1. The admixture is formed by mixing fly ash and wet ash. The active silicon-aluminum material consists of fly ash and metakaolin, and the mass ratio of the fly ash to the metakaolin is 1.8.
The chemical auxiliary comprises sodium sulfate and sodium benzene dodecanesulphonate, wherein the mass ratio of the sodium sulfate in the chemical auxiliary is about 60%, and the mass ratio of the sodium benzene dodecanesulphonate in the chemical auxiliary is 18%. In this example, triethanolamine was used, and the ratio of the triethanolamine to the chemical auxiliary was 20% by mass.
The foam in the foam light soil accounts for 10-40% of the volume ratio of the foam light soil, and the foam is formed by physical foaming of a foaming agent and meets the apparent density of 30kg/m3—40kg/m3Any value in between, and the performance is stable.
Specific example 2:
the mass percentage of the admixture is about 33 percent, the mass percentage of the cementing material is about 55 percent, the mass percentage of the chemical auxiliary agent is about 9 percent, the mass percentage of the active silicon-aluminum material is about 3 percent, and the mass percentage of the camphor-2 powder agent is about 0.03 percent.
Wherein: the cementing material comprises cement clinker, calcium oxide and bone glue powder, and the mass ratio of the three components in the cementing material is 2:3: 1. The active silicon-aluminum material consists of fly ash and metakaolin, and the mass ratio of the fly ash to the metakaolin is 2. The admixture is formed by mixing fly ash and spontaneous combustion coal gangue.
The chemical auxiliary comprises sodium sulfate and sodium benzene dodecanesulphonate, wherein the mass ratio of the sodium sulfate in the chemical auxiliary is about 65%, and the mass ratio of the sodium benzene dodecanesulphonate in the chemical auxiliary is 15%. In this example, polyvinyl alcohol was used, and the mass ratio of polyvinyl alcohol in the chemical auxiliary agent was about 18%.
The foam in the foam light soil accounts for 5-45% of the volume ratio of the foam light soil, and the foam is formed by physical foaming of a foaming agent and meets the requirement of apparent density of 20kg/m3—50kg/m3Any value in between, and the performance is stable.
Specific example 3:
the mass ratio of the admixture is about 35 percent, the mass ratio of the cementing material is about 50 percent, the mass ratio of the chemical auxiliary agent is about 10 percent, the mass ratio of the active silicon-aluminum material is about 5 percent, and the mass ratio of the camphor-2 powder agent is about 0.04 percent.
Wherein: the cementing material comprises cement clinker, calcium oxide and bone glue powder, and the mass ratio of the three components in the cementing material is 2:3: 1. The active silicon-aluminum material consists of fly ash and metakaolin, and the mass ratio of the fly ash to the metakaolin is 1.5. The admixture is formed by mixing wet ash and coal gangue after spontaneous combustion.
The chemical auxiliary comprises sodium sulfate and sodium benzene dodecanesulphonate, wherein the mass ratio of the sodium sulfate in the chemical auxiliary is about 50%, and the mass ratio of the sodium benzene dodecanesulphonate in the chemical auxiliary is 10%. In this example, polyvinyl alcohol was used, and the mass ratio of polyvinyl alcohol in the chemical auxiliary agent was about 30%.
The foam in the foam light soil accounts for 15-50% of the volume ratio of the foam light soil, and the foam is formed by physical foaming of a foaming agent and meets the requirement of 25kg/m of apparent density3—55kg/m3Any value in between, and the performance is stable.
Specific example 4:
the mass percentage of the admixture is about 40 percent, the mass percentage of the cementing material is about 40 percent, the mass percentage of the chemical auxiliary agent is about 16 percent, the mass percentage of the active silicon-aluminum material is about 4 percent, and the mass percentage of the camphor-2 powder agent is about 0.05 percent.
Wherein: the cementing material comprises cement clinker, calcium oxide and bone glue powder, and the mass ratio of the three components in the cementing material is 2:3: 1. The active silicon-aluminum material consists of fly ash and metakaolin, and the mass ratio of the fly ash to the metakaolin is 2.4. The admixture consists of wet fly ash.
The chemical auxiliary comprises sodium sulfate and sodium benzene dodecyl sulfate, wherein the mass ratio of the sodium sulfate in the chemical auxiliary is about 62%, and the mass ratio of the sodium benzene dodecyl sulfate in the chemical auxiliary is 18%. In this example, triethanolamine was used, and the ratio of the triethanolamine to the chemical auxiliary was 18% by mass.
Need to explainThe foam in the foam light soil accounts for 15-45% of the volume ratio of the foam light soil, and the foam is formed by physical foaming of a foaming agent and meets the requirement of 25kg/m of apparent density3—60kg/m3Any value in between, and the performance is stable.
Correspondingly, fig. 1 shows a process flow chart of a preparation method of the foamed lightweight soil in the embodiment of the invention, and the process flow specifically comprises the following steps:
s101, premixing raw materials, and uniformly mixing an admixture, a cementing material and an active silicon-aluminum substance material according to a certain proportion to obtain a mixture;
s102, preparing slurry, namely stirring the mixture in a chemical auxiliary agent at 2000-3000 rpm for 110-160S to obtain uniform modified slurry;
s103, adding a foaming agent, adding the foaming agent into the modified slurry, stirring at 2000-3000 rpm for 15-30S, and adding a camphor-2 powder agent during stirring;
s104, forming a green body, quickly injecting the prepared slurry into a mold, standing for foaming, and demolding and maintaining to obtain a foam green body;
the demolding time of the demolding curing is 24 hours, the curing period is 2 to 8 days, and the curing temperature is any value between 18 and 22 degrees.
And S105, drying, cutting the foam blank maintained for a certain period into regular sizes, and drying.
It should be noted that the drying temperature in this embodiment is 50 to 100 degrees, and the drying time is 6 to 10 hours.
The specific process comprises the following steps:
specifically, the raw materials (admixture, cementing material, active silicon-aluminum material) prepared in example 1 are mixed; the mixture is stirred under the chemical auxiliary agent under the corresponding embodiment, the mixture is stirred for 160s at 2000rpm, and uniform modified slurry is obtained, and the density of turbid liquid of the uniform modified slurry is controlled to be 1400kg/m3—1650kg/m3Any value in between; adding foaming agent into the modified slurry, stirring for 30s at 2000pm, and adding into the modified slurry during stirringAdding the camphene-2 powder agent of the specific example, and controlling the density of turbid liquid after adding the foaming agent at 900kg/m3—1550kg/m3Any value in between; molding a green body, quickly injecting the prepared slurry into a mold, standing for foaming, demolding and maintaining to obtain a foam green body, wherein the demolding time of demolding and maintaining is 28 hours, the maintaining time is 5 days, and the maintaining temperature is 20 ℃; and cutting the foam blank cured to a certain period into regular sizes for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 8 hours.
The foam light soil in the embodiment 1 can be produced by casting the slurry added with the foaming agent into a mould in a cast-in-place mode, for example, the slurry is cast into the mould in a pumping mode in a cast-in-place mode, the foam accounts for 0 to 50 percent of the volume ratio of the modified slurry, and the wet density of the foam light soil is controlled to be 950kg/m3—1500kg/m3Any value in between; the foam is formed by physically foaming a foaming agent and meets the requirement of apparent density of 20kg/m3—60kg/m3Any value in between, and the performance is stable.
Specifically, the raw materials (admixture, cementitious material, active silica-alumina material) prepared in example 2 were mixed; the mixture is stirred under the chemical auxiliary agent under the corresponding embodiment, and is stirred for 110s at 3000rpm, uniform modified slurry is obtained, and the density of turbid liquid of the uniform modified slurry is controlled to be 1500kg/m3—1600kg/m3Any value in between; adding foaming agent into the modified slurry, stirring at 3000rpm for 15s, adding camphene-2 powder agent of specific example into the modified slurry during stirring, and controlling the turbidity density of the mixture after adding foaming agent at 800kg/m3—1500kg/m3Any value in between; molding a green body, quickly injecting the prepared slurry into a mold, standing for foaming, demolding and maintaining to obtain a foam green body, wherein the demolding time of demolding and maintaining is 25 hours, the maintaining time is 2 days, and the maintaining temperature is 18 ℃; cutting the foam blank cured to a certain period into regular sizes for drying treatment, wherein the drying temperature is 50 ℃, and the drying time is 10 hours.
The foam light soil in the production example 2 can be added with foaming in a cast-in-place modePouring the slurry into a mold, for example, pouring the slurry into the mold in a pumping mode, wherein the foam accounts for 0 to 50 percent of the volume ratio of the modified slurry, and the wet density of the foamed lightweight soil is controlled to be 850kg/m3—1400kg/m3Any value in between; the foam is formed by physically foaming a foaming agent and meets the requirement of apparent density of 20kg/m3—60kg/m3Any value in between, and the performance is stable.
Specifically, the raw materials (admixture, cementitious material, active silica-alumina material) prepared in example 3 were mixed; stirring the mixture under the chemical auxiliary agent under the corresponding embodiment, and stirring for 150s at the stirring speed of 2500rpm to obtain uniform modified slurry; adding a foaming agent into the modified slurry, stirring at 2500rpm for 25s, and adding the camphor-2 powder agent in the specific embodiment into the modified slurry in the stirring process; molding a green body, quickly injecting the prepared slurry into a mold, standing for foaming, demolding and maintaining to obtain a foam green body, wherein the demolding time of demolding and maintaining is 30 hours, the maintaining time is 8 days, and the maintaining temperature is 22 ℃; and cutting the foam blank cured to a certain period into regular sizes for drying treatment, wherein the drying temperature is 100 ℃, and the drying time is 6 hours.
The foam light soil in the embodiment 3 can be produced by casting the slurry added with the foaming agent into a mold in a cast-in-place mode, for example, by casting the slurry into the mold in a pumping mode, wherein the foam accounts for 0 to 50 percent of the volume ratio of the modified slurry, and the wet density of the foam light soil is controlled to be 750kg/m3—1500kg/m3Any value in between; the foam is formed by physically foaming a foaming agent and meets the requirement of apparent density of 25kg/m3—60kg/m3Any value in between, and the performance is stable.
Specifically, the raw materials (admixture, cementitious material, active silica-alumina material) prepared in example 4 were mixed; stirring the mixture under the chemical auxiliary agent in the corresponding embodiment, and stirring at 2800rpm for 130s to obtain uniform modified slurry; adding a foaming agent into the modified slurry, stirring at 2800rpm for 20s, and adding the camphor-2 powder agent in the specific embodiment into the modified slurry in the stirring process; molding a green body, quickly injecting the prepared slurry into a mold, standing for foaming, demolding and maintaining to obtain a foam green body, wherein the demolding time of demolding and maintaining is 30 hours, the maintaining time is 7 days, and the maintaining temperature is 19 ℃; and cutting the foam blank cured to a certain period into regular sizes for drying treatment, wherein the drying temperature is 90 ℃, and the drying time is 7 hours.
The foam light soil in the embodiment 4 can be produced by casting the slurry added with the foaming agent into a mould in a cast-in-place mode, for example, the slurry is cast into the mould in a pumping mode in a cast-in-place mode, the foam accounts for 15 to 40 percent of the volume ratio of the modified slurry, and the wet density of the foam light soil is controlled to be 750kg/m3—1500kg/m3Any value in between; the foam is formed by physically foaming a foaming agent and meets the requirement of apparent density of 25kg/m3—60kg/m3Any value in between, and the performance is stable.
In conclusion, the cementing material of the invention adopts cement clinker, calcium oxide and bone glue, thereby avoiding using a large amount of cement, reducing the necessary coal resources during the production of the cement, effectively relieving the tension energy utilization, and also ensuring that the foamed lightweight soil has high strength, less moisture, fast drying, good bonding and shaping and convenient use. Because the admixture in the embodiment is a mixture of various industrial wastes and soil, the waste can be changed into valuable, the maintenance is simple, and the timeliness is good. In the whole implementation process, the camphor-2 powder is added, so that the insect aggregation phenomenon can be effectively prevented, and the method can be widely applied to civil engineering roads and buildings in south.
The method for preparing the foamed lightweight soil and the foamed lightweight soil provided by the embodiment of the invention are described in detail, the principle and the embodiment of the invention are explained by applying specific examples, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. The foamed light soil comprises an admixture, a cementing material, a chemical auxiliary agent, an active silicon-aluminum material and a camphene-2 powder agent, and is characterized by comprising the following components in parts by weight:
the mass ratio of the admixture is 25 to 40 percent;
the mass ratio of the cementing material is 40-65%;
the mass percentage of the chemical auxiliary agent is 3-21%;
the mass ratio of the active silicon-aluminum material is 1-5%;
the weight percentage of the camphor-2 powder agent is 0.01 percent to 0.05 percent;
the cementing material comprises cement clinker, calcium oxide and bone glue powder, and the mass ratio of the three components in the cementing material is 2:3: 1;
the admixture is formed by mixing one or two of fly ash, wet ash or spontaneous combustion coal gangue;
the active silicon-aluminum material is composed of fly ash and metakaolin, and the mass ratio of the fly ash to the metakaolin is 1.5-2.4.
2. The foamed lightweight soil according to claim 1, wherein the chemical adjuvant comprises sodium sulfate and sodium benzene dodecanesulphonate, the sodium sulfate is 20 to 75% by mass of the chemical adjuvant, and the sodium benzene dodecanesulphonate is 3 to 18% by mass of the chemical adjuvant.
3. The foamed lightweight soil according to claim 2, wherein the chemical auxiliary further comprises polyvinyl alcohol, and the mass ratio of the polyvinyl alcohol in the chemical auxiliary is 6% to 43%.
4. The foamed lightweight soil according to claim 2, wherein the chemical adjuvant further comprises triethanolamine, and the weight ratio of the triethanolamine in the chemical adjuvant is 2% to 28%.
5. The preparation method of the foamed lightweight soil is characterized by comprising the following steps of:
(1) premixing raw materials, namely uniformly mixing an admixture, a cementing material and an active silicon-aluminum substance material according to a certain proportion to obtain a mixture;
(2) preparing slurry, namely stirring the mixture in a chemical auxiliary agent at 2000-3000 rpm for 110-160 s to obtain uniform modified slurry;
(3) adding a foaming agent, adding the foaming agent into the modified slurry, stirring at 2000-3000 rpm for 15-30 s, and adding a camphor-2 powder agent during stirring;
(4) molding a green body, quickly injecting the prepared slurry into a mold, standing for foaming, and demolding and maintaining to obtain a foam green body;
(5) and (4) drying, namely cutting the foam blank maintained for a certain period into regular sizes for drying treatment.
6. The method for preparing foamed lightweight soil according to claim 5, wherein the demold curing is performed for 24 hours, the curing period is 2 to 8 days, and the curing temperature is 18 to 22 degrees.
7. The method of claim 5, wherein the drying temperature is 50 to 100 degrees, and the drying time is 6 to 10 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010080844.7A CN111217575A (en) | 2020-02-05 | 2020-02-05 | Preparation method of foam light soil and foam light soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010080844.7A CN111217575A (en) | 2020-02-05 | 2020-02-05 | Preparation method of foam light soil and foam light soil |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120312193A1 (en) * | 2010-02-18 | 2012-12-13 | Lafarge | Foamed concrete |
| CN103011896A (en) * | 2012-12-21 | 2013-04-03 | 王寿光 | Foam concrete |
| CN104774032A (en) * | 2015-04-07 | 2015-07-15 | 南京工业大学 | Light-weight inorganic foam material and preparation method thereof |
-
2020
- 2020-02-05 CN CN202010080844.7A patent/CN111217575A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120312193A1 (en) * | 2010-02-18 | 2012-12-13 | Lafarge | Foamed concrete |
| CN103011896A (en) * | 2012-12-21 | 2013-04-03 | 王寿光 | Foam concrete |
| CN104774032A (en) * | 2015-04-07 | 2015-07-15 | 南京工业大学 | Light-weight inorganic foam material and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| XIONG LC: ""Fly Ash Particle Size Effect on Pore Structure and Strength of Fly Ash Foamed Geopolymer"", 《ADVANCES IN POLYMER TECHNOLOGY》 * |
| 梅艺华: "《仓储管理实务》", 31 July 2015, 北京理工大学出版社 * |
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Application publication date: 20200602 |