CN104803651A - Gypsum-based cementing material - Google Patents
Gypsum-based cementing material Download PDFInfo
- Publication number
- CN104803651A CN104803651A CN201510207204.7A CN201510207204A CN104803651A CN 104803651 A CN104803651 A CN 104803651A CN 201510207204 A CN201510207204 A CN 201510207204A CN 104803651 A CN104803651 A CN 104803651A
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- CN
- China
- Prior art keywords
- gypsum
- anhydrite
- mixture
- levigate
- slag
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Classifications
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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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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a gypsum-based cementing material. The gypsum-based cementing material comprises blast-furnace slag powder, a gypsum mixture, an active admixture, an alkali-activator, a coagulation accelerator, lime, a water-reducing agent and an early-strength admixture. According to the gypsum-based cementing material, sulphoaluminate cement, portland cement and gypsum are mixed at a certain proportion to react so as to generate ettringite with expansion characteristic, so that the gypsum-based cementing material has the characteristics of being quick in setting and hardening and low in shrinkage ratio, and therefore, can be used for preparing various quick-hardening mortars aiming at shortening the construction period and quickening delivery and service. The gypsum-based cementing material is early and high in strength, low in shrinkage ratio, wide in source and low in production cost and has the functions of environmental protection and carbon emission reduction.
Description
Technical field
The present invention relates to a kind of gelling material, particularly relate to a kind of composite gelled material being agglutinate with cement, gypsum.
Background technology
Gelling material is under physics, chemical action, can become firm Shi Zhuanti from slurry, and the cementing unclassified stores of energy, make the material of the composite solid of certain physical strength.Silicate cement is topmost building latex material in the world today, and its grog is with tricalcium silicate (C
3s) mineral are main, and silicate cement has that material storage enriches, production cost is lower, the advantage of mature production technology.But silicate cement is long for time of coagulation, and early strength is low, shrinking percentage is large, poor durability, for the performance requriements will preparing those extraordinary mortars requiring that set time is short, early strength is high, shrinking percentage is low and cannot reach each side.
Traditional gypsum has fast solidifying, does not shrink, lightweight, insulation, the feature such as energy-conservation, be widely used as indoor hardware fitting, but due to its intensity is low, this two big world property difficult problem of water resistance poor (coefficient of softening is low) limits it range of application.Anhydrite is also called dehydrated gyp-, have natural in artificial two large classes of getting, the latter calcines through 360 ~ 1000 DEG C the anhydrite formed by dihydrate gypsum, wherein dihydrate gypsum is through the gypsum of 360 ~ 500 DEG C of calcinings, claim slow molten anhydrite anhydrite II-S, 500 ~ 700 DEG C of anhydrite generated, anhydrite II-U, claim anhydrite Ⅱ, 700 ~ 1000 DEG C of anhydrite generated, anhydrite II-E, are called cast anhydrite II-E.Dehydrated gyp-intensity is higher than plaster of Paris, but still existing defects, people carry out modification by interpolation cement and volcano grey matter active material to dehydrated gyp-, expect the intensity and the water tolerance that improve dehydrated gyp-, obtain certain effect, but due to cost high, cannot put it over application.France, by special calcining process, prepares high strength gypsum, name gypsum-cement.This product is put on market, but the hydrated product of this product is still dihydrate gypsum, and belong to air-setting material, water resistance is poor, is of limited application.And traditional silicate cement is because intensity is high, good weatherability, water-tolerant, be widely used as material of construction, highway material etc., but also have that production energy consumption is large, production cost is high, solidification is slow and the defect such as shrinkage strain is large, use inconvenience in some aspects.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, provide that a kind of raw material sources is wide, cost is lower and there is early strong, high-strength and gelling material that shrinking percentage is low.
The technical solution used in the present invention is: a kind of gypsum based gel material, comprise ground granulated blast furnace slag, gypsum mixture, active admixture, alkali-activator, setting accelerator, lime, water reducer and hardening accelerator, the weight proportion of each component is: ground granulated blast furnace slag 10 ~ 30%, gypsum mixture 20% ~ 60%, active admixture 10% ~ 45%, alkali-activator 4% ~ 15%, setting accelerator 0 ~ 6%, hardening accelerator 0 ~ 1%, water reducer 0 ~ 1%, lime 0 ~ 5%;
Described gypsum mixture comprises butt phosphogypsum and anhydrite powder, and both weight proportions are 1:3 ~ 4:5; Described anhydrite powder is natural anhydrite, fluorgypsum, anhydrite II-S, anhydrite II-U or anhydrite II-E; Its granularity is, fluorgypsum, anhydrite II-S, anhydrite II-E are 80 ~ 300 orders, and natural anhydrite and anhydrite II-U are 100 ~ 500 orders;
Described active admixture is be selected from one or more the mixture in levigate blast furnace slag, fine-ground fly-ash, levigate Fluorspar Powder, silicon ash, levigate iron-tion slag, levigate slag, comprehensive specific surface area>=400g/cm
2;
Described alkali-activator is one or more mixtures in silicate cement, aluminosulfate cement, aluminate cement, lime, alkaline residue or carbide slag;
Described setting accelerator is for being selected from Na
2sO
4, K
2sO
4, NaHSO
4, KHSO
4, CuSO
4, FeSO
4, AL
2(SO
4)
3, ZnSO
4, KAL (SO
4)
2, K
2cr
2o
7in one or more mixture.
As a further improvement on the present invention, superplasticizer and stablizer is also included.
Further improve as of the present invention, described superplasticizer is casein food grade or polycarboxylic acid high efficiency water reducing agent.
Further improve as of the present invention, described stablizer is hydroxyethyl ether cellulose or anionic high-molecular copolymer.
The beneficial effect that the present invention adopts is: gelling material of the present invention can react the ettringite generating and have expansion characteristics after utilizing aluminosulfate cement, silicate cement and gypsum to mix under certain ratio, it is made to possess fast solidifying, fast hard and characteristic that shrinking percentage is low, thus can be used for preparation with the reduction of erection time, the various fast rigid mortar for the purpose of being delivered for use fast.The present invention can not only provide has early strong, high-strength and gelling material that shrinking percentage is low, and its raw material sources are wide simultaneously, production cost is low and have the function of environmental emission reduction.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
Embodiment 1, a kind of gypsum based gel material, comprise ground granulated blast furnace slag, gypsum mixture, active admixture, alkali-activator, setting accelerator, lime, water reducer and hardening accelerator, the weight proportion of each component is: ground granulated blast furnace slag 30%, gypsum mixture 20%, active admixture 22%, alkali-activator 15%, setting accelerator 6%, hardening accelerator 1%, water reducer 1%, lime 5%; Described gypsum mixture comprises butt phosphogypsum and anhydrite powder, and both weight proportions are 1:3; Described anhydrite powder is natural anhydrite; Its granularity is 200 orders; Described active admixture is be selected from the mixture in levigate blast furnace slag, fine-ground fly-ash and levigate slag, comprehensive specific surface area 520g/cm
2; Described alkali-activator is the mixture of silicate cement and aluminosulfate cement; Described setting accelerator is for being selected from Na
2sO
4, AL
2(SO
4)
3and K
2cr
2o
7in mixture.With reference to the requirement of GB175 cement national standard, three days ultimate compression strength that test obtains High Performance Cementitious Material are 21.5MPa, and folding strength is 4.4MPa, and 28 days ultimate compression strength is 49.6MPa, and folding strength is 7.0MPa.
Embodiment 2, a kind of gypsum based gel material, comprise ground granulated blast furnace slag, gypsum mixture, active admixture, alkali-activator, setting accelerator, lime, water reducer and hardening accelerator, the weight proportion of each component is: ground granulated blast furnace slag 20%, gypsum mixture 60%, active admixture 10%, alkali-activator 4%, setting accelerator 2%, hardening accelerator 0.5%, water reducer 0.5%, lime 3%; Described gypsum mixture comprises butt phosphogypsum and anhydrite powder, and both weight proportions are 2:3; Described anhydrite powder is natural anhydrite and anhydrite II-S; Its granularity is, anhydrite II-S is 300 orders, and natural anhydrite is 200 orders; Described active admixture is the mixture being selected from levigate blast furnace slag, fine-ground fly-ash, levigate Fluorspar Powder, silicon ash, levigate iron-tion slag and levigate slag, comprehensive specific surface area 450g/cm
2; Described alkali-activator is the mixture in silicate cement, aluminosulfate cement, aluminate cement, lime, alkaline residue and carbide slag; Described setting accelerator is for being selected from Na
2sO
4, K
2sO
4, NaHSO
4, KHSO
4, CuSO
4, FeSO
4, AL
2(SO
4)
3, ZnSO
4, KAL (SO
4)
2and K
2cr
2o
7in mixture.With reference to the requirement of GB175 cement national standard, three days ultimate compression strength that test obtains High Performance Cementitious Material are 16.5MPa, and folding strength is 3.8MPa, and 28 days ultimate compression strength is 37.6MPa, and folding strength is 6.8MPa.
Embodiment 3, a kind of gypsum based gel material, comprise ground granulated blast furnace slag, gypsum mixture, active admixture, alkali-activator, setting accelerator, lime, water reducer and hardening accelerator, the weight proportion of each component is: ground granulated blast furnace slag 30%, gypsum mixture 20%, active admixture 45%, alkali-activator 4%, setting accelerator 0.25%, hardening accelerator 0.25%, water reducer 0.25%, lime 0.25%; Described gypsum mixture comprises butt phosphogypsum and anhydrite powder, and both weight proportions are 4:5; Described anhydrite powder is natural anhydrite, fluorgypsum, anhydrite II-E; Its granularity is, fluorgypsum, anhydrite II-S, anhydrite II-E are 300 orders, and natural anhydrite is 500 orders; Described active admixture is the mixture being selected from levigate blast furnace slag, fine-ground fly-ash, levigate Fluorspar Powder, silicon ash, levigate iron-tion slag and levigate slag, comprehensive specific surface area 450g/cm
2; Described alkali-activator is the mixture of silicate cement, aluminosulfate cement, aluminate cement, alkaline residue and carbide slag; Described setting accelerator is for being selected from Na
2sO
4, K
2sO
4, AL
2(SO
4)
3and ZnSO
4mixture.With reference to the requirement of GB175 cement national standard, three days ultimate compression strength that test obtains High Performance Cementitious Material are 15.7MPa, and folding strength is 3.6MPa, and 28 days ultimate compression strength is 36.3MPa, and folding strength is 6.6MPa.
Embodiment 4, a kind of gypsum based gel material, comprise ground granulated blast furnace slag, gypsum mixture, active admixture, alkali-activator, setting accelerator, lime, water reducer and hardening accelerator, the weight proportion of each component is: ground granulated blast furnace slag 30%, gypsum mixture 20%, active admixture 43%, alkali-activator 4%, setting accelerator 0.25%, hardening accelerator 0.25%, water reducer 0.25%, lime 0.25%, the casein food grade of 1% and the hydroxyethyl ether cellulose of 1%; Described gypsum mixture comprises butt phosphogypsum and anhydrite powder, and both weight proportions are 4:5; Described anhydrite powder is natural anhydrite, fluorgypsum, anhydrite II-E; Its granularity is, fluorgypsum, anhydrite II-S, anhydrite II-E are 300 orders, and natural anhydrite is 500 orders; Described active admixture is the mixture being selected from levigate blast furnace slag, fine-ground fly-ash, levigate Fluorspar Powder, silicon ash, levigate iron-tion slag and levigate slag; Described alkali-activator is the mixture of silicate cement, aluminosulfate cement, aluminate cement, alkaline residue and carbide slag, comprehensive specific surface area 430g/cm
2; Described setting accelerator is for being selected from Na
2sO
4, K
2sO
4, AL
2(SO
4)
3and ZnSO
4mixture.The results showed, respectively 8,15,30,45,60min time with perching knife on surface standardized road, can see and use casein food grade as superplasticizer, good self-healing performance can be still had when 45min, this is in practice of construction, healing automatically in the place that service tool can be made to streak, thus reaches smooth surface.With reference to the requirement of GB175 cement national standard, three days ultimate compression strength that test obtains High Performance Cementitious Material are 16.7MPa, and folding strength is 3.8MPa, and 28 days ultimate compression strength is 37.5MPa, and folding strength is 6.8MPa.
Gelling material of the present invention can react the ettringite generating and have expansion characteristics after utilizing aluminosulfate cement, silicate cement and gypsum to mix under certain ratio, it is made to possess fast solidifying, fast hard and characteristic that shrinking percentage is low, thus can be used for preparation with the reduction of erection time, the various fast rigid mortar for the purpose of being delivered for use fast.The present invention can not only provide has early strong, high-strength and gelling material that shrinking percentage is low, and its raw material sources are wide simultaneously, production cost is low and have the function of environmental emission reduction.
Those skilled in the art should know; protection scheme of the present invention is not limited only to the above embodiments; various permutation and combination and conversion can also be carried out on the basis of above-described embodiment; under the prerequisite without prejudice to spirit of the present invention, the various conversion that the present invention carries out all are dropped in protection scope of the present invention.
Claims (4)
1. a gypsum based gel material, its feature comprises ground granulated blast furnace slag, gypsum mixture, active admixture, alkali-activator, setting accelerator, lime, water reducer and hardening accelerator, the weight proportion of each component is: ground granulated blast furnace slag 10 ~ 30%, gypsum mixture 20% ~ 60%, active admixture 10% ~ 45%, alkali-activator 4% ~ 15%, setting accelerator 0 ~ 6%, hardening accelerator 0 ~ 1%, water reducer 0 ~ 1%, lime 0 ~ 5%;
Described gypsum mixture comprises butt phosphogypsum and anhydrite powder, and both weight proportions are 1:3 ~ 4:5; Described anhydrite powder is natural anhydrite, fluorgypsum, anhydrite II-S, anhydrite II-U or anhydrite II-E; Its granularity is, fluorgypsum, anhydrite II-S, anhydrite II-E are 80 ~ 300 orders, and natural anhydrite and anhydrite II-U are 100 ~ 500 orders;
Described active admixture is be selected from one or more the mixture in levigate blast furnace slag, fine-ground fly-ash, levigate Fluorspar Powder, silicon ash, levigate iron-tion slag, levigate slag, comprehensive specific surface area>=400g/cm
2;
Described alkali-activator is one or more mixtures in silicate cement, aluminosulfate cement, aluminate cement, lime, alkaline residue or carbide slag;
Described setting accelerator is for being selected from Na
2sO
4, K
2sO
4, NaHSO
4, KHSO
4, CuSO
4, FeSO
4, AL
2(SO
4)
3, ZnSO
4, KAL (SO
4)
2, K
2cr
2o
7in one or more mixture.
2. a kind of gypsum based gel material according to claim 1, is characterized in that also including superplasticizer and stablizer.
3. a kind of gypsum based gel material according to claim 2, is characterized in that described superplasticizer is casein food grade or polycarboxylic acid high efficiency water reducing agent.
4. a kind of gypsum based gel material according to claim 2, is characterized in that described stablizer is hydroxyethyl ether cellulose or anionic high-molecular copolymer.
Priority Applications (1)
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|---|---|---|---|
| CN201510207204.7A CN104803651A (en) | 2015-04-28 | 2015-04-28 | Gypsum-based cementing material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207204.7A CN104803651A (en) | 2015-04-28 | 2015-04-28 | Gypsum-based cementing material |
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| Publication Number | Publication Date |
|---|---|
| CN104803651A true CN104803651A (en) | 2015-07-29 |
Family
ID=53688911
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|---|---|---|---|
| CN201510207204.7A Pending CN104803651A (en) | 2015-04-28 | 2015-04-28 | Gypsum-based cementing material |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347765A (en) * | 2015-10-23 | 2016-02-24 | 潍坊德霖建材科技有限公司 | Phosphogypsum waterproof dry-mixed mortar |
| CN105777042A (en) * | 2016-03-21 | 2016-07-20 | 同济大学 | Anti-disturbance repair mortar and method for applying same |
| CN106145854A (en) * | 2016-07-01 | 2016-11-23 | 马振义 | Water-fast desulfurated plaster mould conjunction and preparation method thereof |
| CN107056115A (en) * | 2017-04-27 | 2017-08-18 | 湖北昌耀新材料股份有限公司 | A kind of rush for ardealite based cementitious material coagulates type early strength agent and preparation method thereof |
| CN108863264A (en) * | 2018-07-13 | 2018-11-23 | 桐城市景瑞建筑装饰工程有限公司 | A kind of building latex material and preparation method |
| CN108911675A (en) * | 2018-08-22 | 2018-11-30 | 钟祥三和建材有限公司 | Using fluorgypsum as the autoclaved lime-sand brick of raw material and its production method |
| CN109574614A (en) * | 2018-11-14 | 2019-04-05 | 湖北冶金地质研究所(中南冶金地质研究所) | A kind of method that quartz mud modified ardealite based cementitious material prepares concrete |
| CN110104984A (en) * | 2019-05-07 | 2019-08-09 | 武汉理工大学 | A kind of ardealite slag cements early strength coagulant based on modified composite dewatering phase |
| CN110304847A (en) * | 2019-04-11 | 2019-10-08 | 武汉理工大学 | A kind of wet-milling carbide slag exciting agent and its preparation method and application |
| CN110372232A (en) * | 2019-06-27 | 2019-10-25 | 贵州省建筑材料科学研究设计院有限责任公司 | It is a kind of not shrink cementitious material and preparation method thereof and concrete using made of ardealite |
| CN111302751A (en) * | 2020-02-27 | 2020-06-19 | 济南大学 | Wall material composite material |
| CN112341124A (en) * | 2020-10-19 | 2021-02-09 | 同济大学 | Light grouting material for repairing hollowing of wall heat insulation system and preparation method thereof |
| CN112429982A (en) * | 2020-12-10 | 2021-03-02 | 唐山三友氯碱有限责任公司 | Cementing material and mortar material based on wet-based alkaline residue-wet-based carbide slag and preparation method thereof |
| CN112552011A (en) * | 2020-12-09 | 2021-03-26 | 四川森拓新型材料有限公司 | High-temperature gypsum common concrete and preparation method thereof |
| CN115490497A (en) * | 2022-11-02 | 2022-12-20 | 东南大学 | Broad-spectrum curing agent and preparation method thereof |
-
2015
- 2015-04-28 CN CN201510207204.7A patent/CN104803651A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347765A (en) * | 2015-10-23 | 2016-02-24 | 潍坊德霖建材科技有限公司 | Phosphogypsum waterproof dry-mixed mortar |
| CN105777042A (en) * | 2016-03-21 | 2016-07-20 | 同济大学 | Anti-disturbance repair mortar and method for applying same |
| CN105777042B (en) * | 2016-03-21 | 2018-06-29 | 同济大学 | A kind of disturbance rejection mending mortar and its application method |
| CN106145854A (en) * | 2016-07-01 | 2016-11-23 | 马振义 | Water-fast desulfurated plaster mould conjunction and preparation method thereof |
| CN107056115B (en) * | 2017-04-27 | 2019-05-21 | 湖北昌耀新材料股份有限公司 | A kind of rush for ardealite based cementitious material coagulates type early strength agent and preparation method thereof |
| CN107056115A (en) * | 2017-04-27 | 2017-08-18 | 湖北昌耀新材料股份有限公司 | A kind of rush for ardealite based cementitious material coagulates type early strength agent and preparation method thereof |
| CN108863264A (en) * | 2018-07-13 | 2018-11-23 | 桐城市景瑞建筑装饰工程有限公司 | A kind of building latex material and preparation method |
| CN108911675A (en) * | 2018-08-22 | 2018-11-30 | 钟祥三和建材有限公司 | Using fluorgypsum as the autoclaved lime-sand brick of raw material and its production method |
| CN108911675B (en) * | 2018-08-22 | 2020-11-24 | 钟祥三和建材有限公司 | Autoclaved sand-lime brick taking fluorgypsum as raw material and production method thereof |
| CN109574614A (en) * | 2018-11-14 | 2019-04-05 | 湖北冶金地质研究所(中南冶金地质研究所) | A kind of method that quartz mud modified ardealite based cementitious material prepares concrete |
| CN109574614B (en) * | 2018-11-14 | 2019-08-09 | 湖北冶金地质研究所(中南冶金地质研究所) | A kind of method that quartz mud modified ardealite based cementitious material prepares concrete |
| CN110304847A (en) * | 2019-04-11 | 2019-10-08 | 武汉理工大学 | A kind of wet-milling carbide slag exciting agent and its preparation method and application |
| CN110304847B (en) * | 2019-04-11 | 2022-03-11 | 武汉理工大学 | Wet-grinding carbide slag excitant and preparation method and application thereof |
| CN110104984A (en) * | 2019-05-07 | 2019-08-09 | 武汉理工大学 | A kind of ardealite slag cements early strength coagulant based on modified composite dewatering phase |
| CN110372232B (en) * | 2019-06-27 | 2021-11-23 | 赵源 | Non-shrinkage cementing material prepared from phosphogypsum, preparation method thereof and concrete |
| CN110372232A (en) * | 2019-06-27 | 2019-10-25 | 贵州省建筑材料科学研究设计院有限责任公司 | It is a kind of not shrink cementitious material and preparation method thereof and concrete using made of ardealite |
| CN111302751A (en) * | 2020-02-27 | 2020-06-19 | 济南大学 | Wall material composite material |
| CN112341124A (en) * | 2020-10-19 | 2021-02-09 | 同济大学 | Light grouting material for repairing hollowing of wall heat insulation system and preparation method thereof |
| CN112552011A (en) * | 2020-12-09 | 2021-03-26 | 四川森拓新型材料有限公司 | High-temperature gypsum common concrete and preparation method thereof |
| CN112429982A (en) * | 2020-12-10 | 2021-03-02 | 唐山三友氯碱有限责任公司 | Cementing material and mortar material based on wet-based alkaline residue-wet-based carbide slag and preparation method thereof |
| CN115490497A (en) * | 2022-11-02 | 2022-12-20 | 东南大学 | Broad-spectrum curing agent and preparation method thereof |
| CN115490497B (en) * | 2022-11-02 | 2023-09-22 | 东南大学 | Broad-spectrum curing agent and preparation method thereof |
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Application publication date: 20150729 |