CN1258654A - Ultrastrength cement - Google Patents

Ultrastrength cement Download PDF

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Publication number
CN1258654A
CN1258654A CN98126497A CN98126497A CN1258654A CN 1258654 A CN1258654 A CN 1258654A CN 98126497 A CN98126497 A CN 98126497A CN 98126497 A CN98126497 A CN 98126497A CN 1258654 A CN1258654 A CN 1258654A
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Prior art keywords
grog
cement
anhydrite
raw material
flyash
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CN98126497A
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CN1101791C (en
Inventor
刘晓波
张振秋
王顺
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ZHUFANG SPECIAL CEMENT CO Ltd LUANXIAN COUNTY
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ZHUFANG SPECIAL CEMENT CO Ltd LUANXIAN COUNTY
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/32—Aluminous cements
    • C04B7/323—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
    • 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
    • C04B28/06—Aluminous cements
    • C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
    • 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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  • 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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The ultrastrength cement is one kind of hydraulic cementing material with high early strength and is produced by using anhydrous calcium sulfoaluminate and dicalcium silicate obtained through calcining raw material of specific component as the main mineral components of its clinker, adding certain amount of hard gypsum and flyash and through grinding. The weight composition includes clinker 62-75%, hard gypsum 13-18% and flyash 12-20%. The present invention has very high strength, and the utilization of industrial slag makes it low in cost.

Description

Ultrastrength cement
The present invention relates to a kind of material of construction, particularly a kind of high strength, many performances, hydraulicity gelling Ultrastrength cement.
In unit research such as building materials institute of the 1970s and 1980s country and invented " quick hardening sulphoaluminate cement ", " fast hard iron aluminate cement ", " rapid hardening high-strength aluminate cement ".Make it once become the main raw that solves repairing rush construction engineering, but fast development along with architecture science, to this in construction work the material of widespread use proposed to upgrade higher requirement, it is firmer not only to require this material to have in other words, more competent performance, also requirement must have super early strong, characteristics such as superelevation is strong, " rapid hardening high-strength aluminate cement " has early strong fireproof performance, it is more suitable to be used for high temperature resistant cast wadding, at construction work middle and later periods strength retraction, make construction quality be difficult to guarantee, and the construction technology more complicated, price is higher, is difficult to adapt to the needs of construction work.
Purpose of the present invention provides with regard to being to overcome weak point of the prior art that a kind of production technique is simple, cheap, wide accommodation, the Ultrastrength cement of hard soon, high-strength, impervious, anti-sulphate attack, microdilatancy, not retraction of later strength.
The object of the present invention is achieved like this, it is to be the grog of essential mineral composition with the raw material of special component through the calcining anhydrous calcium sulphoaluminate that is able to, Dicalcium Phosphate (Feed Grade), add a certain amount of anhydrite, the high hydraulic cementing materials of early strength that flyash is levigate to be made, it is made up of following composition:
A. grog, anhydrite, flyash;
B. the weight proportion of each component is: grog 62-75%, anhydrite 13-18%, flyash 12-20%;
C. the raw material that prepare grog are bauxitic clay, Wingdale, anhydrite;
D. the each component weight proportion of raw material is: Wingdale 48-55%, bauxitic clay 20-35%, anhydrite 17-25%; The rate value be the cm value at 0.95-1.05, the P value is at 2.8-3.5, the N value is between 5.5-6.8;
E. raw material prepare the required heat output of fuel of grog＞5700 kcal/kg;
F. the essential mineral content (weight percent) of grog is: C 4A 3S68-75%, C 2S15-20%, the rate value is: CM 0.89-1.00, P 4.3-5.0, N6.2-7.8;
Production technique of the present invention is: at first with Wingdale, bauxitic clay, gypsum one is broken, two broken enter pre-homogenizing storehouse and deposit, entering the Microcomputerized dosing storehouse then prepares burden in proportion, the raw material that prepare enter the pulverizer grinding, raw material behind the grinding go into to stir the storehouse homogenizing, through airlift to the shaft preheater preheating, powder after the preheating enters calcined by rotary kiln, grog after the calcining enters the grog storage vault through the cooler cooling, with the gypsum after the fragmentation, grog, after flyash is prepared burden in proportion with microcomputer, enter cement flour grinding machine grinding, powder behind the grinding enters the powder separating machine sorting, enter the further homogenizing in cement pneumatic blending storehouse then, the powder after the homogenizing is gone into storage vault, package test, dispatch from the factory.
Purpose of the present invention can also realize that anhydrite can replace with dihydrate gypsum by following technical measures, and the calcining temperature of grog is 1250-1350 ℃, and the grog liter focuses between the 650-800, and each component is by proportioning levigate being prepared from of weighing.
The present invention has the following advantages compared to existing technology:
1. production technique is simple, reliable;
2. rationally utilize industrial residue, energy-conservation, consumption reduction, with low cost, the enabling environment protection;
3. the performance that has early strong, high-strength, freeze proof, impervious, microdilatancy, not retraction of later strength;
4. anti-folding, ultimate compression strength height;
5. applied widely;
Below in conjunction with embodiment in detail the present invention is described in detail: table one: the proportioning of raw material (ton raw-meal ingredient)
??％ ??kg ％ ??kg ?％ ??kg ?％ ??kg
Bauxitic clay ??20 ??200 25 ??250 ?30 ?300 ?35 ??350
Wingdale ??55 ??550 52 ??520 ?50 ?500 ?48 ??480
Gypsum ??25 ??250 23 ??230 ?20 ?200 ?17 ??170
Add up to ??100 ??1000 100 ??1000 ?100 ?1000 ?100 ??1000
Table two: grog chemical ingredients and rate value
Numbering Chemical ingredients The rate value
Loss Sio 2 ?AL 2o 3 ?Fe 2o 3 ??Cao Mgo So 3 Tio 2 Other ∑ ??A/S ??(p) A/S (N) ??cm
TH-1 0.53 ?0.52 ?39.41 ?2.25 ?38.56 2.91 ?8.41 1.57 98.89 ??4.69 7.51 ?0.95
TH-2 0.29 ?5.18 ?40.35 ?2.19 ?39.21 2.16 ?8.10 1.62 99.10 ??4.98 7.79 ?0.97
TH-3 0.30 ?5.43 ?39.26 ?2.22 ?38.76 2.50 ?8.72 1.79 98.98 ??4.48 7.23 ?0.94
TH-4 0.57 ?5.23 ?39.09 ?2.37 ?38.88 2.28 ?9.17 1.66 99.25 ??4.26 7.47 ?0.95
TH-5 0.52 ?5.78 ?39.73 ?2.36 ?38.52 2.28 ?8.78 1.47 99.62 ??4.53 6.87 ?0.90
TH-6 0.23 ?5.52 ?38.47 ?2.16 ?39.91 2.63 ?8.26 1.71 98.89 ??4.60 6.97 ?1.00
Table three: Ultrastrength cement proportioning
Proportioning Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
??％ ??kg ??％ ??kg ??％ ??kg ??％ ???kg
Grog ??62 ??620 ??66 ??660 ??70 ??700 ??75 ???750
Flyash ??20 ??200 ??18 ??180 ??16 ??160 ??12 ???120
Anhydrite ??18 ??180 ??16 ??160 ??14 ??140 ??13 ???130
Add up to ??100 ??1000 ??100 ??1000 ??100 ??1000 ??100 ???1000
Production process of the present invention is such, at first carry out Wingdale, bauxitic clay, gypsum one broken, two broken with crusher, make its particle size after cracking＜20mm, enter four pre-homogenizing storehouse then respectively and adopt many storehouse collocation homogenizing, material after the homogenizing enters the raw meal proportioning storehouse, press table one a certainty ratio batching, and carry out grinding, go out to grind raw material requirement fineness＜8%, qualification rate＞40%, the raw material that mill is good enter four pneumatic blending storehouses and carry out the low-pressure air stirring, improve the stability that enters the kiln raw material, homogeneity to reach.After by strength lifting device raw material being sent into shaft preheater and carried out preheating, enter calcined by rotary kiln, calcining temperature is controlled at 1250-1350 ℃, rotary kiln adopts tangent type shaft preheater and kiln tail to add two fiery calcining procesies, make that its energy consumption is low, grog label quality is guaranteed, in calcination process, major control anhydrous calcium sulphoaluminate (C 4A 3S) and Dicalcium Phosphate (Feed Grade) (C 2S) mineralogical composition and ratio, C 4A 3S68-75%, C 2S15-20%, the rate value is: CM 0.89-1.00, the P value is: 4.3-5.0, the N value is 6.2-7.8; The grog liter focuses between the 650-800, avoids reducing atmosphere to produce in the calcining, avoids the generation of Alkaline minerals as far as possible, promptly generates grog required for the present invention through the calcining about 30 minutes.Then anhydrite is put in storage through broken, in the described ratio of table three grog, anhydrite, flyash are mixed and to carry out grinding, the also available dihydrate gypsum of anhydrite replaces, the admixture ratio and the specific surface area of major control grog, anhydrite, flyash in grinding process, get Ultrastrength cement to make different labels, cement behind the grinding carries out sorting through powder separating machine, enter to carry into stockyard after cement pneumatic blending storehouse is stirred, stirred and store, and test, pack, promptly produce Ultrastrength cement of the present invention.The present invention has the advantages that super early strong, strong, the many performance of superelevation, anti-folding of later stage, ultimate compression strength still have growth, and owing to reasonably developed industrial residue, reduced the manufacture of cement cost, and traditional increasing cement consumption and admixture have been changed, and the specially-shaped curing condition is prepared the way of High Strength Concrete down with silicate cement, sulphur (iron) aluminate cement, rapid hardening high-strength aluminate cement, thereby greatly reduce engineering cost, shorten the construction period, had higher popularization and application values.The Ultrastrength cement clinker mineral form with the relation of intensity and different in mix material to the influence of intensity see Table four, table five.
Table four: the Ultrastrength cement clinker mineral is formed the relation with intensity
Figure A9812649700071
Table five: mix the influence of material in different to intensity
Label Numbering Molding time Proportioning (%) Denseness Degree of mobilization Specific surface area Water cement ratio Condense Folding strength (MPa) Ultimate compression strength (MPa)
Grog Flyash Anhydrite Dihydrate gypsum Initial set Final set One day Three days Seven days 28 days Three months Six months 1 year A year and a half One day Three days Seven days 28 days Three months Six months 1 year A year and a half
Skillful material ?96.3.10 100 28 123 4115 0.42 63 189 8.9 13.2 13.6 14.1 14.3 14.5 14.5 14.6 81.0 103.8 115.7 ????130.6 ???131.2 ???132.6 ????133.1 ??133.6
1 ???A ?3.11 82 10 8 27.5 129 4751 0.41 47 105 9.8 11.7 12.8 13.6 13.9 14.1 14 14.2 82.0 89.5 102.3 ????109.8 ???112.1 ???119.5 ????119.4 ??119.5
???B ?3.11 10 8 28 125 4754 0.41 25 47 10.5 11.4 11.9 11.6 11.2 10.8 10.7 10.5 66.8 86.5 87.2 ????89.3 ???90.1 ???91.2 ????91.3 ??91.3
2 ???A1 ?3.11 74 14 12 29 127 4542 0.41 51 117 8.4 10.2 11.7 12.1 12.3 12.5 12.4 12.6 77.5 81.2 89.3 ????91.4 ???91.6 ???91.8 ????92 ??92.2
???B1 ?3.11 14 17 28 126 4544 0.41 27 52 9.1 10.8 11.5 11.1 10.9 10.4 10.4 9.8 61.9 67.1 69.5 ????70.2 ???70.2 ???70.2 ????70.3 ??70.4
3 ???A2 ?3.12 66 18 16 26.5 128 4327 0.42 55 131 8.0 8.9 10.8 11.1 11.3 11.2 11.3 11.4 59.1 69.3 78.9 ????82.1 ???82.6 ???82.7 ????82.9 ??82.9
???B2 ?3.12 18 16 27 125 4321 0.42 28 55 8.5 9.1 11.1 10.2 10 9.1 8.8 8.6 51.2 56.7 61.2 ????61.4 ???61.4 ???61.5 ????61.4 ??61.7
4 ???A3 ?3.12 62 20 18 29.5 126 4130 0.41 57 134 7.4 8 8.9 9.3 9.3 9.5 9.4 9.5 55.1 59.3 70.1 ????73 ???73.1 ???73 ????73.2 ??73.2
???B3 ?3.12 20 18 28 129 4125 0.41 30 58 8.1 8.6 9.1 8.9 8.6 8.5 8.3 8 45.0 47.6 51.3 ????52.6 ???52.7 ???52.9 ????52.8 ??52.9

Claims (6)

1. a Ultrastrength cement is that the raw material with special component are the grog of essential mineral composition through the calcining anhydrous calcium sulphoaluminate that is able to, Dicalcium Phosphate (Feed Grade), add a certain amount of anhydrite, the high hydraulic cementing materials of early strength that flyash is levigate to be made, it is characterized in that: it is made up of following composition:
A. grog, anhydrite, flyash;
B. the weight proportion of each component is: grog 62-75%, anhydrite 13-18%, flyash 12-20%;
C. the raw material that prepare grog are bauxitic clay, Wingdale, anhydrite;
D. the each component weight proportion of raw material is: Wingdale 48-55%, bauxitic clay 20-35%, anhydrite 17-25%; The rate value be the cm value at 0.95-1.05, the P value is at 2.8-3.5, the N value is between 5.5-6.8;
E. raw material prepare the required heat output of fuel of grog＞5700 kcal/kg;
F. the essential mineral content (weight percent) of grog is: C 4A 3S68-75%, C 2S15-20%, the rate value is: CM0.89-1.00, P4.3-5.0, N6.2-7.8;
2. according to the described Ultrastrength cement of claim 1, it is characterized in that: anhydrite can replace with dihydrate gypsum.
3. according to the described Ultrastrength cement of claim 1, it is characterized in that: production technique is, at first with Wingdale, alumina, gypsum one is broken, two broken enter pre-homogenizing storehouse and deposit, entering the Microcomputerized dosing storehouse then prepares burden in proportion, the raw material that prepare enter the pulverizer grinding, raw material behind the grinding go into to stir the storehouse homogenizing, through airlift to the shaft preheater preheating, powder after the preheating enters calcined by rotary kiln, grog after the calcining enters the grog storage vault through the cooler cooling, with the gypsum after the fragmentation, grog, after flyash is prepared burden in proportion with microcomputer, enter the cement flour grinding machine and carry out grinding, powder behind the grinding enters the powder separating machine sorting, enters the further homogenizing in cement pneumatic blending storehouse then, and the powder after the homogenizing is gone into storage vault, package test, dispatch from the factory.
4. according to the described Ultrastrength cement of claim 1, it is characterized in that: the calcining temperature of grog is 1250-1350 ℃.
5. according to the described Ultrastrength cement of claim 1, it is characterized in that: the grog liter focuses between the 650-800.
6. according to the described Ultrastrength cement of claim 1, it is characterized in that: each component is by proportioning levigate being prepared from of weighing.
CN98126497A 1998-12-30 1998-12-30 Ultrastrength cement Expired - Fee Related CN1101791C (en)

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CN1101791C CN1101791C (en) 2003-02-19

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351197C (en) * 2002-09-25 2007-11-28 陈智丰 Process for making quick hardening aluminosulfate cement
CN105669058A (en) * 2014-11-18 2016-06-15 登封电厂集团有限公司 Process and method for producing sulfoaluminate cement by using aluminum profile sludge
CN104203866B (en) * 2012-03-30 2016-09-28 电化株式会社 Fast hydraulic cement
CN106082719A (en) * 2016-06-15 2016-11-09 阳泉天隆工程材料有限公司 Super hardening high-strength cement
CN108069680A (en) * 2016-11-15 2018-05-25 江苏瑞凌新能源科技有限公司 A kind of high intensity ash concrete

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1014984B (en) * 1985-04-23 1991-12-04 秩夫水泥株式会社 Method of moulding concrete product
CN86103649B (en) * 1986-05-28 1988-10-26 国家建筑材料工业局建筑材料科学研究院 Composition & production method of arlit calsium aluminosulfite cement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351197C (en) * 2002-09-25 2007-11-28 陈智丰 Process for making quick hardening aluminosulfate cement
CN104203866B (en) * 2012-03-30 2016-09-28 电化株式会社 Fast hydraulic cement
CN105669058A (en) * 2014-11-18 2016-06-15 登封电厂集团有限公司 Process and method for producing sulfoaluminate cement by using aluminum profile sludge
CN106082719A (en) * 2016-06-15 2016-11-09 阳泉天隆工程材料有限公司 Super hardening high-strength cement
CN108069680A (en) * 2016-11-15 2018-05-25 江苏瑞凌新能源科技有限公司 A kind of high intensity ash concrete

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