CN104987005A - Air-added ceramsite concrete and preparation method thereof - Google Patents
Air-added ceramsite concrete and preparation method thereof Download PDFInfo
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- CN104987005A CN104987005A CN201510323500.3A CN201510323500A CN104987005A CN 104987005 A CN104987005 A CN 104987005A CN 201510323500 A CN201510323500 A CN 201510323500A CN 104987005 A CN104987005 A CN 104987005A
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- haydite
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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 invention relates to concrete, in particular to air-added ceramsite concrete and a preparation method thereof, and aims at solving the problems that in the prior art, shrinkage is prone to happening, cracks are easy to generate, the volume weight is heavy, ceramsite is raised during manufacturing, and the volume weight is hard to control. According to the technical scheme, preparation materials of the air-added ceramsite concrete comprise, by weight, 35-55 parts of binding materials, 0.08-0.6 part of additives, 0.03-0.15 part of foaming agents, 15-45 parts of the ceramsite and 20-30 parts of water. By modifying a formula of the concrete and the production technology, the light and high-strength air-added ceramsite concrete is obtained, meanwhile the production technology further has the advantages that the ceramsite is prevented from raising, and the volume weight is easy to control.
Description
Technical field
The present invention relates to concrete, be specifically related to a kind of aerating haydite concrete and preparation method thereof.
Background technology
Haydite concrete replaces stone as the concrete of aggregate using haydite; belong to lightweight aggregate concrete; generally take haydite as coarse aggregate; be equipped with normal sands or pottery sand be fine aggregate; add gelling material formulated, there is the excellent properties such as high-strength light, heat insulating, fireproofing and heat resistant, acoustic insulation shock-proof.Publication number is the production method that CN103524080A Chinese patent application discloses the building block of a kind of haydite foaming concrete high-strength, the method adopts flyash, cement, haydite and special toughener etc. to prepare building block, its production method is for first to stir special toughener, and then other raw material such as stirring powder coal ash, cement, haydite, aerating in whipping process, obtains aerating figuline building blocks.Publication number is that CN104746020A Chinese patent application discloses a kind of micro-pore coagulating cement earth building blocks and preparation method thereof, its technique adopts the raw materials such as flyash, cement, admixture, first other raw material except whipping agent such as flyash, cement etc. are put by stacked, then be uniformly mixed, then add whipping agent mixing.Publication number is the production method that CN103204650A Chinese patent application discloses that building block strengthened by haydite concrete; this production method is raw material based on biological sludge haydite, flyash, cement, plant whipping agent etc.; stir being dissolved in the whipping agent after water and directly adding in the mixture of other raw materials such as biological sludge haydite, flyash, cement; then mould molding, maintenance.But, the preparation-obtained haydite concrete of above-mentioned prior art all exist easy shrinkage cracking, unit weight large, when manufacturing haydite float, the shortcoming such as the difficult control of unit weight, be difficult to reach high-strength light, be not only incubated but also can the best effect of load-bearing.
Summary of the invention
The present invention be solve in prior art the easy shrinkage cracking, the unit weight that exist large, when manufacturing haydite float, the problem such as the difficult control of unit weight, a kind of novel aerating haydite concrete and preparation method thereof is proposed.The present invention, by improving concrete formula and production technique, obtains the aerating haydite concrete of high-strength light, and production technique also possesses and can prevent haydite from floating simultaneously, the advantage of unit weight easy to control.
The solution of the present invention is, a kind of aerating haydite concrete, and its raw materials comprises the component of following weight ratio:
Gelling material 35 ~ 55 parts, admixture 0.08 ~ 0.6 part, whipping agent 0.03 ~ 0.15 part, haydite 15 ~ 45 parts, 20 ~ 30 parts, water.
Another preferred version is, its raw material also comprises the composition of following weight part: filamentary material 0.3 ~ 1.2 part.The adding of fiber in the present invention's formula, greatly improve the problem of the floating of shrinkage cracking and haydite, add without fine aggregate, improve the stability of foam.
Another preferred version is, its raw materials comprises the component of following weight ratio: gelling material 40 ~ 50 parts, admixture 0.1 ~ 0.5 part, whipping agent 0.05 ~ 0.1 part, haydite 20 ~ 40 parts, 20 ~ 25 parts, water, filamentary material 0.5 ~ 1 part.
Another preferred version is, described gelling material is inorganic coagulation material.
Another preferred version is, described inorganic coagulation material is at least one in ordinary Portland cement, silicate cement and quick hardening sulphoaluminate cement.
Another preferred version is, described filamentary material is at least one in wood fibre, macromolecular fibre, husk and straw.
Another preferred version is, described admixture is the mixture of one or more in hardening accelerator, water reducer, suds-stabilizing agent, redispersible latex powder, ether of cellulose.
Another preferred version is, described whipping agent is animal/vegetable protein whipping agent, rosined soap class whipping agent or washing class tensio-active agent.
Another preferred version is, described haydite is the mixture of one or more in haydites of book structure, clay haydite, coal gangue haydite, mud ceramic granules, lytag.
Hardening accelerator under consumption of the present invention, accelerates the hydration reaction of gelling material, excites the hydration activity of gelling material, improves strength development speeds, and improves final strength; Ether of cellulose under consumption of the present invention improves the homogeneity of water holding capacity and mixture, improves shrinkage cracking, improves concrete strength, improves workability.Utilize suds-stabilizing agent effectively to stabilize foam, make in introducing bubble and whipping process, the quantity of foam is stablized unchanged; Rubber powder is interface modifier, mainly improves the adhesive property of slurry and haydite aggregate interfacial transition zone, better in conjunction with as a whole, thus improves concrete intensity.
Fiber of the present invention, object is, avoid the concrete initial stage to ftracture, fiber is uniformly distributed concrete, and make concrete when there is the shrinkage cracking such as plastic cracking, dry shrinkage and cracking, fiber limits the development in its crack.Improve concrete globality simultaneously, improve concrete intensity.
Foaming agent under consumption of the present invention, its lather volume produced is 0.1-4 times of slurry volume, both can reduce unit weight, and improve concrete workability simultaneously.
The present invention also provides the preparation method of described aerating haydite concrete, and this preparation method comprises the following steps:
(1) gelling material, water, admixture high-speed stirring are mixed into slurry; Or gelling material, filamentary material, water, admixture high-speed stirring are mixed into slurry (stir speed (S.S.) can be 500 turns-1000 revs/min, time 10-60 second);
(2) by whipping agent by mechanical pre-frothing, form the microvesicle of stable and uniform, then foam added in the slurry that mixed, mix;
(3) finally add haydite, stir (stir speed (S.S.) is less than 60 revs/min, churning time 15-45 second), make and newly mix aerating haydite concrete;
(4) enter mould, wet curing is shaping and get final product.
Present invention improves over the composition and engineering of existing aerating haydite concrete, new formula makes the resisted shrinkage cracking performance of haydite concrete be improved; And there is the advantage that morning is strong, high-strength, water-intake rate is low.
First gelling material, water, filamentary material, admixture high-speed stirring are mixed into slurry by its technique; by whipping agent by mechanical pre-frothing; form the microvesicle of stable and uniform; again foam is passed through volumetric metering, add in the slurry mixed, after mixing; finally add the haydite of certain mass; stirring is made and is newly mixed aerating haydite concrete, and enter mould immediately, wet curing is shaping.This improvement charging technology order, slurry first mixes, after add foam, make the unit weight of haydite concrete be easy to control, intensity stabilization, haydite is non-rising; In addition, the foam of pre-frothing, is easy to metering; Production technique is produced at normal temperatures, non-evaporating foster, without vibration, Self-leveling.
Unit weight of the present invention is easy to control, can make unit weight and be less than 1000kg/m
3haydite foaming concrete, be mainly used in building partition, exterior wall cladding, can decorate, nonload bearing element.Also unit weight 1000kg/m can be made
3-1900kg/m
3haydite foaming concrete, be mainly used in the structural part such as beam column, shear wall, and can decorate, supporting member.Substantially increase the application level of aerating haydite concrete.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated, and protection scope of the present invention is not limited in these embodiments.
Embodiment 1
Proportioning raw materials: 40 parts of gelling material, 20 parts of water, 0.5 part of filamentary material, 0.1 part of admixture (admixture is that hardening accelerator, water reducer, suds-stabilizing agent, redispersible latex powder, ether of cellulose are by the mixture of equal in quality than mixing), 0.05 part of whipping agent, 20 parts of haydites.
Preparation technology is as follows:
(1) gelling material, filamentary material, water, admixture high-speed stirring are mixed into slurry, stir speed (S.S.) 500 revs/min, 45 seconds time;
(2) by whipping agent by mechanical pre-frothing, form the microvesicle of stable and uniform, then foam added in slurry that step (1) mixed, mix;
(3) finally add haydite, stir, stir speed (S.S.) 30 revs/min, stirs 30 seconds, makes and newly mix aerating haydite concrete;
(4) enter mould, wet curing is shaping and get final product.
The present embodiment gained concrete density 615kg/m
3, 1 day ultimate compression strength 1.1MPa, 28 days ultimate compression strength 4.2MPa.Obtain A level and do not fire insulating wall material, fire prevention, thermal and insulating performance excellence, and water-intake rate is low.
Embodiment 2
Proportioning raw materials: 45 parts of gelling material, 23 parts of water, 0.8 part of filamentary material, 0.2 part of admixture (admixture is that hardening accelerator, water reducer, suds-stabilizing agent, redispersible latex powder, ether of cellulose are by the mixture of equal in quality than mixing), 0.07 part of whipping agent, 30 parts of haydites.
Preparation technology is as follows:
(1) by gelling material, filamentary material, water, admixture high-speed stirring, stir speed (S.S.) 1000 revs/min, stirs 30 seconds, is mixed into slurry;
(2) by whipping agent by mechanical pre-frothing, form the microvesicle of stable and uniform, then foam added in slurry that step (1) mixed, mix;
(3) finally add haydite, stir, stir speed (S.S.) 30 revs/min, 45 seconds time, make and newly mix aerating haydite concrete;
(4) enter mould, wet curing is shaping and get final product.
The present embodiment gained concrete density 980kg/m
3, 1 day ultimate compression strength 5.1MPa, 28 days ultimate compression strength 9.5MPa.
Embodiment 3
Composition of raw materials: 50 parts of gelling material, 25 parts of water, 1 part of filamentary material, the 0.5 part of admixture ratio mixing of 2 to 1 (hardening accelerator and the water reducer in mass ratio), 0.1 part of whipping agent, 40 parts of haydites.
Preparation technology:
(1) by gelling material, filamentary material, water, admixture high-speed stirring, stir speed (S.S.) 800 revs/min, 30 seconds time, is mixed into slurry;
(2) by whipping agent by mechanical pre-frothing, form the microvesicle of stable and uniform, then foam added in slurry that step (1) mixed, mix;
(3) finally add haydite, stir, stir speed (S.S.) 45 revs/min, 30 seconds time, makes and newly mixes aerating haydite concrete;
(4) enter mould, wet curing is shaping and get final product.
The present embodiment gained concrete density 1420kg/m
3, 1 day ultimate compression strength 10.1MPa, 28 days ultimate compression strength 21.3MPa.
Embodiment 4
Proportioning raw materials: 35 parts of gelling material, 20 parts of water, 0.3 part of filamentary material, the 0.08 part of admixture ratio mixing of 1:1:1 (hardening accelerator, water reducer and the suds-stabilizing agent in mass ratio), 0.03 part of whipping agent, 15 parts of haydites.
Preparation technology is as follows:
(1) by gelling material, filamentary material, water, admixture high-speed stirring stir speed (S.S.) 1000 revs/min, churning time 30 seconds, is mixed into slurry;
(2) by whipping agent by mechanical pre-frothing, form the microvesicle of stable and uniform, then foam added in slurry that step (1) mixed, mix;
(3) finally add haydite, stir, stir speed (S.S.) 30 revs/min, 40 seconds time, makes and newly mixes aerating haydite concrete;
(4) enter mould, wet curing is shaping and get final product.
The present embodiment gained concrete density 510kg/m
3, 1 day ultimate compression strength 4.2MPa, 28 days ultimate compression strength 7.7MPa.
Embodiment 5
Composition of raw materials: 55 parts of gelling material, 30 parts of water, 1.2 parts of filamentary materials, 0.6 part of admixture (admixture is that hardening accelerator, water reducer, suds-stabilizing agent, redispersible latex powder, ether of cellulose are by the mixture of equal in quality than mixing), 0.15 part of whipping agent, 45 parts of haydites.
Preparation technology:
(1) by gelling material, filamentary material, water, admixture high-speed stirring, stir speed (S.S.) 1000 revs/min, churning time 30 seconds, is mixed into slurry;
(2) by whipping agent by mechanical pre-frothing, form the microvesicle of stable and uniform, then foam added in slurry that step (1) mixed, mix;
(3) finally add haydite, stir, stir speed (S.S.) 30 revs/min, 40 seconds time, makes and newly mixes aerating haydite concrete;
(4) enter mould, wet curing is shaping and get final product.
The present embodiment gained concrete density 1740kg/m
3, 1 day ultimate compression strength 11.9MPa, 28 days ultimate compression strength 28.6MPa.
Above-described embodiment, wherein embodiment 1,2,3 gelling material is ordinary Portland cement, and embodiment 4,5 gelling material uses silicate cement, and filamentary material is wood fibre.
Embodiment 1 whipping agent used is animal protein foaming agent, and embodiment 2-3 whipping agent used is plant thing protein foaming agent, and embodiment 4-5 whipping agent used is rosined soap class whipping agent.
Haydite described in embodiment 1-2 is haydites of book structure, and embodiment 3 haydite used is lytag, and embodiment 4-5 haydite used is clay haydite.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. an aerating haydite concrete, is characterized in that, its raw materials comprises the component of following weight:
Gelling material 35-55 part, admixture 0.08-0.6 part, whipping agent 0.03-0.15 part, haydite 15-45 part, water 20-30 part.
2. aerating haydite concrete according to claim 1, it is characterized in that, its raw material also comprises the composition of following weight part: filamentary material 0.3-1.2 part.
3. aerating haydite concrete according to claims 1 or 2; it is characterized in that, its raw materials comprises the component of following weight: gelling material 40-50 part, admixture 0.1-0.5 part, whipping agent 0.05-0.1 part, haydite 20-40 part, water 20-25 part, filamentary material 0.5-1 part.
4. aerating haydite concrete according to claim 3, it is characterized in that, described gelling material is inorganic coagulation material.
5. aerating haydite concrete according to claim 4, it is characterized in that, described inorganic coagulation material is at least one in ordinary Portland cement, silicate cement and quick hardening sulphoaluminate cement.
6. aerating haydite concrete according to claim 3, it is characterized in that, described filamentary material is at least one in wood fibre, macromolecular fibre, husk and straw.
7. aerating haydite concrete according to claim 3, it is characterized in that, described admixture is the mixture of one or more in hardening accelerator, water reducer, suds-stabilizing agent, redispersible latex powder, ether of cellulose.
8. aerating haydite concrete according to claim 3, is characterized in that, described whipping agent is animal/vegetable protein whipping agent, rosined soap class whipping agent or washing class tensio-active agent.
9. aerating haydite concrete according to claim 3, it is characterized in that, described haydite is the mixture of one or more in haydites of book structure, clay haydite, coal gangue haydite, mud ceramic granules, lytag.
10. the preparation method of aerating haydite concrete described in claim 1 to 9 any one claim, is characterized in that, comprise the following steps:
(1) gelling material, water, admixture high-speed stirring are mixed into slurry; Or gelling material, filamentary material, water, admixture high-speed stirring are mixed into slurry;
(2) by whipping agent by mechanical pre-frothing, form the microvesicle of stable and uniform, then foam added in the slurry that mixed, mix;
(3) finally add haydite, stir, make and newly mix aerating haydite concrete;
(4) enter mould, wet curing is shaping and get final product.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801168A (en) * | 2016-03-22 | 2016-07-27 | 福建省建筑工程质量检测中心有限公司 | Colorful ceramsite foam concrete and preparation method thereof |
| CN106278028A (en) * | 2016-08-10 | 2017-01-04 | 马鞍山市广立方彩砖有限公司 | A kind of building non-bearing aerated bricks of the iron mine tailings that adulterates |
| CN106365675A (en) * | 2016-09-22 | 2017-02-01 | 四川亨利德新型建筑材料有限公司 | Haydite concrete wall-mounted thermal-insulation board and preparation method thereof |
| CN106431139A (en) * | 2016-09-22 | 2017-02-22 | 四川亨利德新型建筑材料有限公司 | Planar laid ceramsite concrete thermal baffle and preparation method thereof |
| CN106542789A (en) * | 2016-10-21 | 2017-03-29 | 张琨 | A kind of haydite reinforcing plate |
| CN106565274A (en) * | 2016-11-21 | 2017-04-19 | 江苏建筑职业技术学院 | Fiber enhanced ceramsite foamed concrete and preparation method thereof |
| CN107162535A (en) * | 2017-07-19 | 2017-09-15 | 合肥广民建材有限公司 | A kind of light high-strength haydite concrete and preparation method thereof |
| CN108285361A (en) * | 2018-03-16 | 2018-07-17 | 河南理工大学 | Self-compaction sulphate aluminium cement ceramsite foam concrete and preparation method thereof |
| CN111777369A (en) * | 2020-06-15 | 2020-10-16 | 云南大永高速公路有限公司 | Concrete for maintaining stability of highway slope and preparation method thereof |
| CN111960856A (en) * | 2020-08-27 | 2020-11-20 | 陈谓清 | Heat-insulating sound-insulating concrete and preparation method and construction method thereof |
| CN113683349A (en) * | 2021-08-24 | 2021-11-23 | 深圳市永恒业混凝土有限公司 | Heat-insulating lightweight concrete and preparation method thereof |
| CN114835458A (en) * | 2022-04-18 | 2022-08-02 | 四川正源新型材料科技有限公司 | Ceramsite foam concrete material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106365675A (en) * | 2016-09-22 | 2017-02-01 | 四川亨利德新型建筑材料有限公司 | Haydite concrete wall-mounted thermal-insulation board and preparation method thereof |
| CN106431139A (en) * | 2016-09-22 | 2017-02-22 | 四川亨利德新型建筑材料有限公司 | Planar laid ceramsite concrete thermal baffle and preparation method thereof |
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| CN106565274A (en) * | 2016-11-21 | 2017-04-19 | 江苏建筑职业技术学院 | Fiber enhanced ceramsite foamed concrete and preparation method thereof |
| CN107162535A (en) * | 2017-07-19 | 2017-09-15 | 合肥广民建材有限公司 | A kind of light high-strength haydite concrete and preparation method thereof |
| CN108285361A (en) * | 2018-03-16 | 2018-07-17 | 河南理工大学 | Self-compaction sulphate aluminium cement ceramsite foam concrete and preparation method thereof |
| CN111777369A (en) * | 2020-06-15 | 2020-10-16 | 云南大永高速公路有限公司 | Concrete for maintaining stability of highway slope and preparation method thereof |
| CN111960856A (en) * | 2020-08-27 | 2020-11-20 | 陈谓清 | Heat-insulating sound-insulating concrete and preparation method and construction method thereof |
| CN113683349A (en) * | 2021-08-24 | 2021-11-23 | 深圳市永恒业混凝土有限公司 | Heat-insulating lightweight concrete and preparation method thereof |
| CN113683349B (en) * | 2021-08-24 | 2022-06-10 | 深圳市永恒业混凝土有限公司 | Heat-insulating lightweight concrete and preparation method thereof |
| CN114835458A (en) * | 2022-04-18 | 2022-08-02 | 四川正源新型材料科技有限公司 | Ceramsite foam concrete material and preparation method thereof |
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Application publication date: 20151021 |