CN110818360A - Expanded perlite foam light soil and preparation method thereof - Google Patents
Expanded perlite foam light soil and preparation method thereof Download PDFInfo
- Publication number
- CN110818360A CN110818360A CN201911256406.5A CN201911256406A CN110818360A CN 110818360 A CN110818360 A CN 110818360A CN 201911256406 A CN201911256406 A CN 201911256406A CN 110818360 A CN110818360 A CN 110818360A
- Authority
- CN
- China
- Prior art keywords
- expanded perlite
- parts
- water
- foam
- cement
- 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
- 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
-
- 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
-
- 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
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant 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
Abstract
An expanded perlite foam light soil belongs to the technical field of building materials and comprises the following components in parts by weight: 9-27 parts of expanded perlite, 420 parts of cementing material, 155-195 parts of water, 20-60 parts of latex powder, 1.25-2.1 parts of foaming agent, 1.5 parts of thickening agent and 0.5 part of water reducing agent. The light aggregate expanded perlite is added into the foamed light soil prepared by the invention, so that the phenomena of pumping defoaming, segregation, bleeding and the like which are easy to occur in construction are improved, and the foamed light soil plays a role of a framework, ensures the strength and reduces the density; the addition of the redispersible latex powder improves the toughness and impact resistance of the material, reduces water absorption and improves durability.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to expanded perlite foam light soil and a preparation method thereof.
Background
The foamed light soil as one kind of inorganic porous material is used in highway subgrade and is one new technology for altering conventional highway subgrade filling process. The manufacturing process of the foamed light soil embodies the characteristics of new technology, environmental protection, resource reutilization and the like, and has very wide application prospect. The foam light soil material has the advantages of small density, light weight, strength higher than that of conventional backfilled soil, no lateral pressure, small load on a foundation and the like, and is formed into a whole after filling. After the foamed light soil is used for filling, the highway is in a hyperconcentration state, so that the settlement and the uneven settlement are reduced, the post-construction settlement of the highway subgrade filling material is reduced, the bump at the bridge head is avoided, and the method has obvious technical advantages.
The preparation process and performance are mainly researched at present. However, the influence degree of each factor on the stable preparation and performance is not clear, and the preparation technology has many problems to be solved urgently, such as poor construction stability, high density grade, poor pore structure and the like; the material has multiple functions when being used in engineering due to the influence of poor toughness, low impact resistance, poor durability and the like.
Chinese patent with publication number CN 109020614A discloses foamed lightweight soil, which comprises 268-401 parts of red mud, 13-20 parts of desulfurized gypsum, 382-256 parts of cement, 329-337 parts of water and 32-33 parts of foam according to mass ratio. The red mud is sintered red mud, the fineness of the desulfurized gypsum is required to pass through a 4.75mm square-hole sieve, and the foam is diluted by a composite foaming agent to form foaming liquid. The wet density of the red mud-based foam light soil is 780-820 kg/m3And 28d unconfined compressive strength is 0.81-1.20 MPa, but the foamed lightweight soil of the technical scheme has lower compressive strength and poorer crack resistance under the density. Easy to separate and deform in volume during construction.
Disclosure of Invention
The invention aims to provide expanded perlite foam light soil and a preparation method thereof, and the technical problems to be solved by the invention are as follows: aiming at the problems of poor construction stability, poor easy-cracking toughness, low impact resistance, low durability and the like of the foam lightweight soil in highway application, the foam lightweight soil material retains the advantages of light weight, heat preservation, environmental protection and the like of the foam lightweight soil material, and improves the strength, toughness and impact resistance of the foam lightweight soil so as to have multiple functions in engineering application and improve the constructability of the foam lightweight soil material.
In order to achieve the purpose, the invention provides the following technical scheme:
the expanded perlite foam light soil comprises the following components in parts by weight: 9-27 parts of expanded perlite, 420 parts of cementing material, 155-195 parts of water, 20-60 parts of latex powder, 1.25-2.1 parts of foaming agent, 1.5 parts of thickening agent and 0.5 part of water reducing agent.
Preferably, the cementing material consists of cement and fly ash, wherein the mass percentage of the cement in the cementing material is 80%, and the mass percentage of the fly ash in the cementing material is 20%.
Preferably, the latex powder is water-soluble dispersible latex powder, and is a mixture based on acrylate copolymer or ethylene-vinyl acetate copolymer or acrylic acid copolymer.
Preferably, the thickener is one or two of polyvinyl alcohol and carboxymethyl cellulose.
Preferably, the foaming agent is a cement foaming agent.
Preferably, the water reducing agent is a polycarboxylic acid water reducing agent.
Preferably, the particle size range of the expanded perlite is 1-2 mm, and the bulk density of the expanded perlite is 100-120 kg/m3。
By adopting the technical scheme, the expanded perlite is light aggregate, wherein the expanded perlite is widely applied to the field of constructional engineering due to the characteristics of ultra-light weight and high heat insulation; on the other hand, the expanded perlite has the advantages of light weight, porosity, good chemical stability, construction stability improvement and the like, and the phenomena of pumping defoaming, segregation, bleeding and the like easily occurring in construction are improved. The addition of a proper amount of perlite can not only reduce the density of the lightweight concrete, but also ensure that the strength and the pumping performance of the lightweight concrete can meet the standard requirements; the redispersible latex powder improves the foamed lightweight soil, the rubber powder can form a polymer film on the surface of a foamed cement hydration product and become a part of the hole wall, the cohesion is increased, the capabilities of stress resistance and strain damage are improved, the plastic shrinkage of the foamed lightweight soil can be effectively prevented, and the crack resistance and the impact resistance of the foamed lightweight soil are improved; the water reducing agent further increases the dispersion uniformity among particles in the concrete mixture, so that the using amount of water can be reduced. The foaming agent generates rich and uniform foam under the mechanical action, and the foam is uniformly mixed with the slurry to achieve the effect of preparing the foamed lightweight soil; the waterproof agent can further increase the waterproof performance of the foamed lightweight soil.
The preparation method of the expanded perlite foam lightweight soil comprises the following steps:
s1, pre-wetting the expanded perlite, weighing the corresponding component of the expanded perlite according to a set mixing ratio at normal temperature, and adding one third of water according to the mixing ratio to perform pre-wetting treatment for 5-10 min;
s2, preparing expanded perlite cement slurry, namely firstly weighing corresponding components of cement, fly ash, a thickening agent and emulsion powder, and putting the weighed components into a stirrer to preliminarily stir for 20-30S; secondly, putting the treated expanded perlite into a stirrer to be continuously stirred for 40-60 s; finally, adding the rest water and the water reducing agent, and continuously stirring for 10-15 min to prepare expanded perlite cement slurry;
s3, mixing the foam and the slurry, weighing foaming agents and water with corresponding weight ratios of 1: 50, diluting, stirring for 2-3 min, starting a foaming machine for foaming, adding the prepared foam into the expanded perlite cement slurry, continuously stirring for 2-3 min to obtain mixed slurry, pouring the mixed slurry, and curing and forming to obtain the expanded perlite foamed lightweight soil.
By adopting the technical scheme, the cement, the fly ash, the thickening agent and the latex powder are stirred and mixed, so that the mixing uniformity is improved; adding the pre-wetted expanded perlite into the premixed dry mixture, stirring to uniformly disperse the admixture, adding water, stirring and fusing to form uniform slurry; and introducing foam into the slurry to enable the foam to be stirred and mixed with the slurry, thereby forming the foamed lightweight soil mixture.
Furthermore, the foaming agent is a cement foaming agent, the foam bleeding rate is low, the affinity with cement-based materials is good, the workability of slurry can be improved, and the foaming agent and water are diluted by 50 times in the test.
By adopting the technical scheme, the hydroxypropyl methyl cellulose ether used in the test is white or white-like powder, and has high dissolving speed and good dispersibility. Can be dissolved in water and partial solvent, and HPMC also has thickening ability to prevent segregation, good dispersibility and good water-retaining property.
The particle size range of the expanded perlite is 1-2 mm, and the bulk density of the expanded perlite is 100-120 kg/m3. The composite material has the characteristics of light apparent density, low heat conductivity coefficient, good chemical stability, no toxicity, no odor and a plurality of excellent performances, improves the phenomena of pumping defoaming, segregation, bleeding and the like which are easy to appear in construction, and plays a role in reducing the density of the composite material while ensuring the strength by virtue of a framework function.
The invention has the following beneficial effects:
1. according to the invention, the expanded perlite is introduced into the foamed light soil, and the porous structure of the expanded perlite is utilized, so that the phenomena of pumping defoaming, bleeding segregation and the like easily occurring in large-volume construction are improved while the light property of the foamed light soil is controlled, and the strength and the pumping performance of the foamed light soil can also reach the effect of standard requirements.
2. According to the invention, the latex powder with high bonding capability and film-forming property is added into the foamed lightweight soil mixture, so that the flexural strength, water resistance, wear resistance and workability of the mortar can be improved, the mortar has stronger flexibility, and the anti-cracking performance and durability performance of the mortar are improved. The phenomena of segregation, defoaming, volume deformation and the like which are easy to occur in the construction process are prevented. The toughness and the impact resistance of the foamed light soil are improved, and the phenomena of cracks and the like easily occurring under impact load and dynamic load are prevented.
Detailed Description
The invention is further illustrated by the following examples.
The expanded perlite foam light soil comprises the following components in parts by weight: 9-27 parts of expanded perlite, 420 parts of a cementing material, 155-195 parts of water, 20-60 parts of latex powder, 1.25-2.1 parts of a foaming agent, 1.5 parts of a thickening agent and 0.5 part of a water reducing agent;
the cementing material consists of cement and fly ash, wherein the mass percent of the cement in the cementing material is 80%, and the mass percent of the fly ash in the cementing material is 20%.
Preferably, the cement is 42.5 ordinary portland cement, the fly ash is II-grade composite portland cement with the label of 32.5MPa, and the standard GB1752007 is met.
The emulsion powder is redispersible emulsion powder, is a water-soluble redispersible powder, is a mixture based on acrylic ester copolymer or ethylene-vinyl acetate copolymer or acrylic acid copolymer, and takes polyvinyl alcohol as protective colloid.
Before the test, the expanded perlite is modified by adopting a soaking method, and pre-wetting treatment needs to be carried out for 5-10 min.
The preparation method comprises the following steps:
the method comprises the following steps: proportioning of foam light soil raw material
Respectively selecting 9-27 parts of expanded perlite, 420 parts of cementing material, 155-195 parts of water, 20-60 parts of latex powder, 1.25-2.1 parts of foaming agent, 1.5 parts of thickening agent and 0.5 part of water reducing agent in parts by weight;
the cementing material is formed by combining cement and fly ash, wherein the mass percent of the cement in the cementing material is 80%, and the mass percent of the fly ash in the cementing material is 20%.
Step two: preparation of expanded perlite foamed light soil
S1, pre-wetting the expanded perlite, weighing the corresponding component of the expanded perlite according to a set mixing ratio at normal temperature, and adding one third of water according to the mixing ratio to perform pre-wetting treatment for 5-10 min;
s2, preparing expanded perlite cement slurry, namely firstly weighing corresponding components of cement, fly ash, a thickening agent and emulsion powder, and putting the weighed components into a stirrer to preliminarily stir for 20-30S; secondly, putting the treated expanded perlite into a stirrer to be continuously stirred for 40-60 s; finally, adding the rest water and the water reducing agent, and continuously stirring for 10-15 min to prepare expanded perlite cement slurry;
s3, mixing the foam and the slurry, weighing foaming agents and water with corresponding weight ratios of 1: 50, diluting, stirring for 2-3 min, starting a foaming machine for foaming, adding the prepared foam into the expanded perlite cement slurry, continuously stirring for 2-3 min to obtain mixed slurry, pouring the mixed slurry, and curing and forming to obtain the expanded perlite foamed lightweight soil.
Example 1
An expanded perlite foam light soil comprises the following steps:
s1, weighing 155kg of water, and adding one third of the water into 9kg of expanded perlite for pre-wetting treatment for 5-10 min.
And S2, firstly weighing 335kg of cement, 85kg of fly ash, 1.5kg of hydroxypropyl methyl cellulose and 40kg of redispersible emulsion powder, putting into a stirrer, primarily stirring for 20-30S, and secondly putting the treated expanded perlite into the stirrer, and continuously stirring for 40-60S. Finally, stirring the rest water and 0.5kg of polycarboxylic acid water reducing agent, pouring into a stirrer, continuously stirring for 10-15 min,
s3, weighing 1.25kg of cement foaming agent and water at the same time, and mixing the materials in a ratio of 1: 50, diluting, stirring for 2-3 min, starting a foaming machine for foaming, adding the prepared foam into the expanded perlite cement slurry, continuously stirring for 2-3 min to obtain mixed slurry, pouring the mixed slurry, and curing and forming to obtain the expanded perlite foamed lightweight soil.
Example 2
An expanded perlite foam light soil comprises the following steps:
s1, weighing 178kg of water, and adding one third of the water into 18kg of expanded perlite for pre-wetting treatment for 5-10 min.
And S2, firstly weighing 335kg of cement, 85kg of fly ash, 1.5kg of hydroxypropyl methyl cellulose and 20kg of redispersible emulsion powder, putting into a stirrer, primarily stirring for 20-30S, and secondly putting the treated expanded perlite into the stirrer, and continuously stirring for 40-60S. Finally, stirring the rest water and 0.5kg of polycarboxylic acid water reducing agent, pouring into a stirrer, continuously stirring for 10-15 min,
s3, weighing 1.68kg of cement foaming agent and water at the same time, and mixing the materials in a ratio of 1: 50, diluting, stirring for 2-3 min, starting a foaming machine for foaming, adding the prepared foam into the expanded perlite cement slurry, continuously stirring for 2-3 min to obtain mixed slurry, pouring the mixed slurry, and curing and forming to obtain the expanded perlite foamed lightweight soil.
Example 3
An expanded perlite foam light soil comprises the following steps:
s1, weighing 193kg of water, and adding one third of the water into 27kg of expanded perlite for pre-wetting treatment for 5-10 min.
And S2, firstly weighing 335kg of cement, 85kg of fly ash, 1.5kg of hydroxypropyl methyl cellulose and 40kg of redispersible emulsion powder, putting into a stirrer, primarily stirring for 20-30S, and secondly putting the treated expanded perlite into the stirrer, and continuously stirring for 40-60S. Finally, stirring the rest water and 0.5kg of polycarboxylic acid water reducing agent, pouring into a stirrer, continuously stirring for 10-15 min,
s3, weighing 2.1kg of foaming agent and water at the same time, and mixing the materials in a ratio of 1: 50, diluting, stirring for 2-3 min, starting a foaming machine for foaming, adding the prepared foam into the expanded perlite cement slurry, continuously stirring for 2-3 min to obtain mixed slurry, pouring the mixed slurry, and curing and forming to obtain the expanded perlite foamed lightweight soil.
Comparative example 1
Essentially identical to example 1, except that no latex powder was added.
Comparative example 2
Essentially identical to example 2, except that no latex powder was added.
Comparative example 3
Essentially identical to example 3, except that no latex powder was added.
Comparative example 4
Essentially identical to example 1, except that no expanded perlite has been added.
Comparative example 5
Essentially identical to example 1, except that no latex powder and expanded perlite were added.
Performance detection
Samples were prepared according to the methods of examples 1 to 3 and comparative examples 1 to 3, and the properties of the standard blocks were measured according to the following methods, and the test results of the blocks of each group were averaged and are shown in table 1:
1. dry density: testing the dry density of the test block according to the JG/T266-2011 foam concrete standard;
2. 28-day compressive strength: manufacturing a standard test block according to GB/T11969-2008 'test method for autoclaved aerated concrete performance', and measuring the compressive strength of the standard test block after being maintained for 28 days;
3. flexural strength in 28 days: manufacturing a standard test block according to GB/T11969-2008 'test method for autoclaved aerated concrete performance', and measuring the compressive strength of the standard test block after being maintained for 28 days;
4. 28-day impact resistance test: drop weight test measurements were performed with reference to the method recommended by the committee on ACI (american concrete association) 544;
5. water content: the water content was measured according to GB/T11969-2008 "test method for autoclaved aerated concrete Performance".
TABLE 1 Performance test results of the standard concrete test blocks prepared in the above examples
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The expanded perlite foam light soil is characterized in that: comprises the following components in parts by weight: 9-27 parts of expanded perlite, 420 parts of cementing material, 155-195 parts of water, 20-60 parts of latex powder, 1.25-2.1 parts of foaming agent, 1.5 parts of thickening agent and 0.5 part of water reducing agent.
2. The expanded perlite foam lightweight soil as recited in claim 1, wherein: the cementing material consists of cement and fly ash, wherein the mass percent of the cement in the cementing material is 80%, and the mass percent of the fly ash in the cementing material is 20%.
3. The expanded perlite foam lightweight soil as recited in claim 1, wherein: the latex powder is water-soluble dispersible latex powder and is a mixture based on acrylate copolymer or ethylene-vinyl acetate copolymer or acrylic acid copolymer.
4. The expanded perlite foam lightweight soil as recited in claim 1, wherein: the thickening agent is one or two of polyvinyl alcohol and carboxymethyl cellulose.
5. The expanded perlite foam lightweight soil as recited in claim 1, wherein: the foaming agent is a cement foaming agent.
6. The expanded perlite foam lightweight soil as recited in claim 1, wherein: the water reducing agent is a polycarboxylic acid water reducing agent.
7. The expanded perlite foam lightweight soil as recited in claim 1, wherein: the particle size range of the expanded perlite is 1-2 mm, and the bulk density of the expanded perlite is 100-120 kg/m3。
8. The method for preparing expanded perlite foam lightweight soil according to any one of claims 1-7, wherein: the method comprises the following steps:
s1, carrying out pre-wetting treatment on the expanded perlite, weighing the corresponding components of the expanded perlite according to the proportion at normal temperature, and adding one third of water according to the proportion to carry out pre-wetting treatment for 5-10 min;
s2, preparing expanded perlite cement slurry, namely firstly weighing corresponding components of cement, fly ash, a thickening agent and emulsion powder, and putting the weighed components into a stirrer to preliminarily stir for 20-30S; secondly, putting the treated expanded perlite into a stirrer to be continuously stirred for 40-60 s; finally, adding the rest water and the water reducing agent, and continuously stirring for 10-15 min to prepare expanded perlite cement slurry;
s3, mixing the foam and the slurry, weighing foaming agents and water with corresponding weight ratios of 1: 50, diluting, stirring for 2-3 min, starting a foaming machine for foaming, adding the prepared foam into the expanded perlite cement slurry, continuously stirring for 2-3 min to obtain mixed slurry, pouring the mixed slurry, and curing and forming to obtain the expanded perlite foamed lightweight soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256406.5A CN110818360A (en) | 2019-12-10 | 2019-12-10 | Expanded perlite foam light soil and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256406.5A CN110818360A (en) | 2019-12-10 | 2019-12-10 | Expanded perlite foam light soil and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110818360A true CN110818360A (en) | 2020-02-21 |
Family
ID=69544319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911256406.5A Pending CN110818360A (en) | 2019-12-10 | 2019-12-10 | Expanded perlite foam light soil and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110818360A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299875A (en) * | 2020-11-25 | 2021-02-02 | 北京城建九混凝土有限公司 | High-strength light porous concrete and preparation method thereof |
| CN112321259A (en) * | 2020-11-17 | 2021-02-05 | 上海群宝建材有限公司 | Heat-insulating concrete and preparation method thereof |
| CN113735529A (en) * | 2021-10-18 | 2021-12-03 | 云南昌保高速公路建设开发有限公司 | Hydrophobic bubble mixed light soil |
| CN115710111A (en) * | 2022-12-19 | 2023-02-24 | 科之杰新材料集团有限公司 | Pumpable 3D printing concrete and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978373A (en) * | 2005-11-30 | 2007-06-13 | 甘肃省建材科研设计院 | Method for producing fiber reinforced micro porous light concrete |
| US20090011207A1 (en) * | 2007-07-05 | 2009-01-08 | United States Gypsum Company | Lightweight cementitious compositions and building products and methods for making same |
| CN103304193A (en) * | 2013-06-19 | 2013-09-18 | 河南华泰建材开发有限公司 | Lightweight aggregate foam concrete and production method thereof |
| CN103508712A (en) * | 2012-06-28 | 2014-01-15 | 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 |
| CN106316458A (en) * | 2016-08-30 | 2017-01-11 | 石家庄冉川建材科技有限公司 | Mortar for lightweight board of steel framework and preparation method of mortar |
| CN108395130A (en) * | 2018-03-27 | 2018-08-14 | 南京林业大学 | A kind of technique for packing reducing heat-insulation wall plate expanded perlite water absorption rate |
-
2019
- 2019-12-10 CN CN201911256406.5A patent/CN110818360A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978373A (en) * | 2005-11-30 | 2007-06-13 | 甘肃省建材科研设计院 | Method for producing fiber reinforced micro porous light concrete |
| US20090011207A1 (en) * | 2007-07-05 | 2009-01-08 | United States Gypsum Company | Lightweight cementitious compositions and building products and methods for making same |
| CN103508712A (en) * | 2012-06-28 | 2014-01-15 | 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 |
| CN103304193A (en) * | 2013-06-19 | 2013-09-18 | 河南华泰建材开发有限公司 | Lightweight aggregate foam concrete and production method thereof |
| CN106316458A (en) * | 2016-08-30 | 2017-01-11 | 石家庄冉川建材科技有限公司 | Mortar for lightweight board of steel framework and preparation method of mortar |
| CN108395130A (en) * | 2018-03-27 | 2018-08-14 | 南京林业大学 | A kind of technique for packing reducing heat-insulation wall plate expanded perlite water absorption rate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321259A (en) * | 2020-11-17 | 2021-02-05 | 上海群宝建材有限公司 | Heat-insulating concrete and preparation method thereof |
| CN112299875A (en) * | 2020-11-25 | 2021-02-02 | 北京城建九混凝土有限公司 | High-strength light porous concrete and preparation method thereof |
| CN113735529A (en) * | 2021-10-18 | 2021-12-03 | 云南昌保高速公路建设开发有限公司 | Hydrophobic bubble mixed light soil |
| CN115710111A (en) * | 2022-12-19 | 2023-02-24 | 科之杰新材料集团有限公司 | Pumpable 3D printing concrete and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110818360A (en) | Expanded perlite foam light soil and preparation method thereof | |
| CN110128075A (en) | A kind of C30 tailing sand concrete and preparation method thereof | |
| CN112010603A (en) | High-water-permeability concrete and preparation method thereof | |
| CN111620619A (en) | C70 self-compacting shrinkage-compensating concrete filled steel tube and preparation method thereof | |
| CN103951330B (en) | A kind of bridge High-performance clean water concrete and preparation method thereof | |
| CN108328977B (en) | Concrete repairing material | |
| CN107117856A (en) | Pure pulvis pervious concrete reinforcing agent and its application method with nanometer humidification | |
| CN108424030A (en) | A kind of collapse protection type Concrete strength agent and its preparation method and application | |
| CN111393110A (en) | Full-machine-made sand masonry mortar with limestone as aggregate and preparation method thereof | |
| CN107602013B (en) | Bentonite cement-based composite material and preparation method thereof | |
| CN111253127A (en) | C30 carbon fiber broken brick recycled concrete and preparation method thereof | |
| CN113860821B (en) | Green environment-friendly lightweight aggregate concrete and preparation method thereof | |
| CN110156398B (en) | High-strength concrete and preparation method thereof | |
| CN113912336B (en) | Special cement filling material for anti-static floor, preparation method and application | |
| CN111662053A (en) | Polypropylene fiber concrete and preparation method thereof | |
| CN113372083B (en) | Graphene oxide based layered material modified self-leveling mortar and preparation method thereof | |
| US10640424B2 (en) | Castable material based on cementitious binder with shrinkage resistance | |
| CN113880524A (en) | Hollowing-proof and cracking-proof plastering mortar and preparation method thereof | |
| EP2909152A1 (en) | Additive for hydraulically setting mixtures | |
| CN113896482A (en) | Ultra-light high-strength concrete and preparation method thereof | |
| CN104129962B (en) | A kind of post-stressed hole path pressure grouting agent and preparation method thereof | |
| CN109704684B (en) | Retarding type water-dispersion-resistant grouting material for implanted rock-socketed single pile | |
| CN111606625A (en) | Formula and preparation method of C70 high-strength self-compacting concrete | |
| CN111302740A (en) | Low-mixing high-strength all-lightweight aggregate concrete for members and preparation method thereof | |
| CN111362636A (en) | C60 carbon fiber 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200221 |
|
| WD01 | Invention patent application deemed withdrawn after publication |