CN114477891A - Cement-water-glass quick-setting foam concrete and preparation method thereof - Google Patents
Cement-water-glass quick-setting foam concrete and preparation method thereof Download PDFInfo
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- CN114477891A CN114477891A CN202111612533.1A CN202111612533A CN114477891A CN 114477891 A CN114477891 A CN 114477891A CN 202111612533 A CN202111612533 A CN 202111612533A CN 114477891 A CN114477891 A CN 114477891A
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- cement
- water
- foam concrete
- foam
- quick
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- 239000011381 foam concrete Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000004568 cement Substances 0.000 claims abstract description 51
- 239000006260 foam Substances 0.000 claims abstract description 40
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 24
- 239000004088 foaming agent Substances 0.000 claims abstract description 15
- 239000003381 stabilizer Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000011398 Portland cement Substances 0.000 claims description 4
- 108010082495 Dietary Plant Proteins Proteins 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- RLQWHDODQVOVKU-UHFFFAOYSA-N tetrapotassium;silicate Chemical compound [K+].[K+].[K+].[K+].[O-][Si]([O-])([O-])[O-] RLQWHDODQVOVKU-UHFFFAOYSA-N 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 24
- 238000005303 weighing Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 229910052918 calcium silicate Inorganic materials 0.000 description 7
- 235000012241 calcium silicate Nutrition 0.000 description 6
- 239000011575 calcium Substances 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000000378 calcium silicate Substances 0.000 description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 3
- 235000019976 tricalcium silicate Nutrition 0.000 description 3
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 1
- AGWMJKGGLUJAPB-UHFFFAOYSA-N aluminum;dicalcium;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Ca+2].[Ca+2].[Fe+3] AGWMJKGGLUJAPB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/04—Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
The invention provides cement-water-glass quick-setting foam concrete and a preparation method thereof, belonging to the field of foam concrete. The cement water glass quick-setting foam concrete is prepared from the following raw materials in parts by weight: 100 parts of cement, 20-60 parts of water glass, 40-100 parts of water, 0.1-0.8 part of foaming agent and 0.1-0.5 part of foam stabilizer. The cement-water glass quick-setting foam concrete prepared by the invention has short setting time, high initial strength, stable later strength, no need of complex maintenance, shortened construction period, reduced production cost and widened application range of the foam concrete.
Description
Technical Field
The invention relates to quick-setting foam concrete and a preparation method thereof, belonging to the field of foam concrete.
Technical Field
The foam concrete is also called foaming cement, and has the advantages of light weight, heat preservation, heat insulation, sound insulation, flame retardance, shock resistance, environmental protection and the like. As a novel green building material, the foam concrete is widely applied to the aspects of heat insulation materials, sound insulation materials, filling materials and the like, and has wide application prospect.
The common foam concrete has longer initial setting time due to higher water-cement ratio in the preparation process, needs to be maintained for several days or even ten days to reach certain strength, objectively causes longer construction period, increases production cost, and can not be used in the fields of sound insulation, heat preservation, filling and the like which need to be quickly molded to have strength due to the fact that the common foam concrete can not reach the quick setting effect, so that the application range of the foam concrete is limited.
Aiming at the defects of the prior art, the rapid-setting foam concrete material which can shorten the construction period, reduce the production cost and widen the application range of the foam concrete is urgently needed to be developed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides cement-water glass quick-setting foam concrete and a preparation method thereof. The foam concrete uses cement, water glass, a foaming agent, a foam stabilizer and the like as raw materials, and the characteristic that the cement and the water glass are quickly solidified after being mixed is utilized, so that the solidification time of the foam concrete is greatly shortened, the construction period is shortened, the production cost is reduced, and the foam concrete has a good practical application value.
The invention aims to provide a cement-water-glass quick-setting foam concrete material.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides cement-water glass quick-setting foam concrete which is prepared from cement, water glass, water, a foaming agent and a foam stabilizer, wherein the cement-water glass quick-setting foam concrete comprises the following components in parts by weight: 100 parts of cement, 20-60 parts of water glass, 40-100 parts of water, 0.1-0.8 part of foaming agent and 0.1-0.5 part of foam stabilizer.
Preferably, the cement is 42.5-grade ordinary portland cement;
preferably, the water glass is potassium water glass or sodium water glass;
preferably, the foaming agent is an animal and vegetable protein foaming agent;
preferably, the foam stabilizer is a nonionic surfactant;
further preferably, the water glass is sodium silicate, the modulus is 1.3-3.5, and the baume degree is 20-45 DEG Be.
According to the scheme, the material performance and the technical principle selected by the invention are as follows:
portland cement is a hydraulic cementing material with wide engineering application, and the main minerals of the Portland cement are tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite and the like, wherein the hydration products of the tricalcium silicate and the dicalcium silicate are C-S-H gel and calcium hydroxide, and the C-S-H gel provides the main strength of the cement. In cement slurries, large amounts of free Ca are released during hydration of tricalcium silicate and dicalcium silicate2+Ionic, so that the silicate cement slurry is rich in free Ca2+Alkaline solution of ions.
When liquid water glass is added into cement paste, SiO in the water glass3 2-Immediately with free Ca in the cement slurry2+Combining to form calcium silicate hydrate gel, water glass and Ca with certain strength2+The reaction between ions is fast and at the same time, Ca in cement slurry2+The concentration is reduced, the cement is continuously hydrated to generate hydrated calcium silicate gel, and as the two reactions are carried out, the colloidal body is more and more, and the slurry can quickly lose fluidity and be solidified into a stable stone body.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention utilizes free Ca formed in the hydration process of cement2+With SiO in water glass3 2-The calcium silicate hydrate gel formed by rapid hardening provides early strength and is rapidly formed, so that the purpose of rapid hardening is achieved, and the later strength is provided by utilizing substances such as calcium silicate hydrate and the like generated by cement hydration, so that the strength meets the requirements of practical construction application.
(2) The invention prepares the cement water glass quick-setting foam concrete material by utilizing the cement water glass quick-setting characteristic, the setting time is adjustable from dozens of seconds to dozens of minutes, the construction period can be greatly shortened, and the production cost is reduced.
(3) The rapid setting characteristic of the material enables the foam concrete to be cast in situ and rapidly formed, and further widens the application range of the foam concrete.
Detailed Description
The advantages and features of the present invention will become more apparent from the further description given below with reference to the specific embodiments, which are given by way of illustration only and are not limitative of the scope of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
Example 1
(1) Preparing cement paste: weighing 100 parts of cement in proportion, adding 50 parts of water, and stirring to prepare slurry;
(2) preparing foam: weighing 0.25 part of foaming agent and 0.3 part of foam stabilizer according to the proportion, and preparing the mixture into foam by a foaming machine;
(3) mixing cement paste with foam: slowly introducing the foam prepared in the step (2) into cement slurry, and uniformly mixing the foam and the cement slurry to obtain foam cement slurry;
(4) preparing quick-setting foam concrete: and (4) weighing 30 parts of water glass in proportion, quickly injecting the water glass and the foam cement slurry prepared in the step (3) into a grinding tool in a double-liquid grouting mode, standing for several minutes, solidifying, curing for 3 days, and then removing the mold to obtain the prepared quick-setting foam concrete.
Example 2
(1) Preparing cement paste: weighing 100 parts of cement according to a proportion, adding 55 parts of water, and stirring to prepare slurry;
(2) preparing foam: weighing 0.3 part of foaming agent and 0.25 part of foam stabilizer according to the proportion, and preparing the mixture into foam by a foaming machine;
(3) mixing cement paste with foam: slowly introducing the foam prepared in the step (2) into cement slurry, and uniformly mixing the foam and the cement slurry to obtain foam cement slurry;
(4) preparing quick-setting foam concrete: and (4) weighing 40 parts of water glass in proportion, quickly injecting the water glass and the foam cement slurry prepared in the step (3) into a grinding tool in a double-liquid grouting mode, standing for several minutes, and then solidifying, and removing the mould after curing for 3 days to obtain the prepared quick-setting foam concrete.
Example 3
(1) Preparing cement paste: weighing 100 parts of cement according to a proportion, adding 60 parts of water, and stirring to prepare slurry;
(2) preparing foam: weighing 0.35 part of foaming agent and 0.2 part of foam stabilizer according to the proportion, and preparing the mixture into foam by a foaming machine;
(3) mixing cement paste with foam: slowly introducing the foam prepared in the step (2) into cement slurry, and uniformly mixing the foam and the cement slurry to obtain foam cement slurry;
(4) preparing quick-setting foam concrete: and (4) weighing 50 parts of water glass in proportion, quickly injecting the water glass and the foam cement slurry prepared in the step (3) into a grinding tool in a two-liquid grouting mode, standing for several minutes, solidifying, curing for 3 days, and then removing the mold to obtain the prepared quick-setting foam concrete.
Example 4
(1) Preparing cement paste: weighing 100 parts of cement according to a proportion, adding 65 parts of water, and stirring to prepare slurry;
(2) preparing foam: weighing 0.4 part of foaming agent and 0.3 part of foam stabilizer according to the proportion, and preparing the mixture into foam by a foaming machine;
(3) mixing cement paste with foam: slowly introducing the foam prepared in the step (2) into cement slurry, and uniformly mixing the foam and the cement slurry to obtain foam cement slurry;
(4) preparing quick-setting foam concrete: and (4) weighing 55 parts of water glass according to the proportion, quickly injecting the water glass and the foam cement paste prepared in the step (3) into a grinding tool in a double-liquid grouting mode, standing for several minutes, and then solidifying, and removing the mould after curing for 3 days to obtain the prepared quick-setting foam concrete.
The performance of the quick-setting foam concrete materials prepared in examples 1-4 was tested, and the compressive strength was tested according to JGT266-2011 foam concrete;
| serial number | Gel time/s | Dry density/Kg/m3 | 3h strength/MPa | 1d Strength/MPa | 7d Strength/MPa | 28d Strength/MPa |
| Example 1 | 36 | 825 | 0.52 | 1.79 | 2.49 | 3.57 |
| Example 2 | 42 | 796 | 0.48 | 1.67 | 2.37 | 3.38 |
| Example 3 | 45 | 772 | 0.46 | 1.65 | 2.28 | 3.12 |
| Example 4 | 52 | 723 | 0.41 | 1.53 | 2.07 | 2.96 |
Claims (7)
1. The cement-water glass quick-setting foam concrete is characterized in that: the cement foaming agent is composed of cement, water glass, water, a foaming agent and a foam stabilizer.
2. The cement-water-glass quick-setting foam concrete as claimed in claim 1, wherein: the raw materials include (by weight portions) cement 100 portions, water glass 20-60 portions, water 40-100 portions, foaming agent 0.1-0.8 portion and foam stabilizer 0.1-0.5 portion.
3. The cement-water-glass quick-setting foam concrete as claimed in claim 1, wherein: the cement is 42.5-grade ordinary portland cement.
4. The cement-water-glass quick-setting foam concrete as claimed in claim 1, wherein: the water glass is potassium water glass or sodium water glass.
5. The cement-water-glass quick-setting foam concrete as claimed in claim 1, wherein: the water glass is sodium silicate, the modulus is 1.3-3.5, and the baume degree is 20-45 DEG Be.
6. The cement-water-glass quick-setting foam concrete as claimed in claim 1, wherein: the foaming agent is an animal and vegetable protein foaming agent.
7. The cement-water-glass quick-setting foam concrete as claimed in claim 1, wherein: the foam stabilizer is a nonionic surfactant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111612533.1A CN114477891A (en) | 2021-12-27 | 2021-12-27 | Cement-water-glass quick-setting foam concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111612533.1A CN114477891A (en) | 2021-12-27 | 2021-12-27 | Cement-water-glass quick-setting foam concrete and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114477891A true CN114477891A (en) | 2022-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111612533.1A Pending CN114477891A (en) | 2021-12-27 | 2021-12-27 | Cement-water-glass quick-setting foam concrete and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114477891A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008130107A1 (en) * | 2007-04-20 | 2008-10-30 | Min-Hwa Park | Rapid set cement foam and the method for preparing the same |
| CN102260065A (en) * | 2011-05-25 | 2011-11-30 | 南京工业大学 | Foam concrete and preparation method thereof |
| CN107445538A (en) * | 2017-07-19 | 2017-12-08 | 南京工业大学 | A kind of non-evaporating pressure foamed concrete material and preparation method thereof |
| CN108623243A (en) * | 2017-03-20 | 2018-10-09 | 上海天利商品混凝土有限公司 | A kind of flame-retardant high-strength foam concrete and preparation method |
| CN113264719A (en) * | 2021-06-11 | 2021-08-17 | 扬州工业职业技术学院 | Ground polymer-based foam concrete for roads and preparation method thereof |
-
2021
- 2021-12-27 CN CN202111612533.1A patent/CN114477891A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008130107A1 (en) * | 2007-04-20 | 2008-10-30 | Min-Hwa Park | Rapid set cement foam and the method for preparing the same |
| CN102260065A (en) * | 2011-05-25 | 2011-11-30 | 南京工业大学 | Foam concrete and preparation method thereof |
| CN108623243A (en) * | 2017-03-20 | 2018-10-09 | 上海天利商品混凝土有限公司 | A kind of flame-retardant high-strength foam concrete and preparation method |
| CN107445538A (en) * | 2017-07-19 | 2017-12-08 | 南京工业大学 | A kind of non-evaporating pressure foamed concrete material and preparation method thereof |
| CN113264719A (en) * | 2021-06-11 | 2021-08-17 | 扬州工业职业技术学院 | Ground polymer-based foam concrete for roads and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 杨伯科: "《混凝土实用新技术手册（精编）》", 31 January 1998, 吉林科学技术出版社 * |
| 殷和平等, 武汉大学出版社 * |
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