CN101012112A - High-strength concrete accelerator - Google Patents

High-strength concrete accelerator Download PDF

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Publication number
CN101012112A
CN101012112A CNA2007100102518A CN200710010251A CN101012112A CN 101012112 A CN101012112 A CN 101012112A CN A2007100102518 A CNA2007100102518 A CN A2007100102518A CN 200710010251 A CN200710010251 A CN 200710010251A CN 101012112 A CN101012112 A CN 101012112A
Authority
CN
China
Prior art keywords
slag
strength concrete
aluminum oxide
concrete accelerator
reducing agent
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.)
Granted
Application number
CNA2007100102518A
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Chinese (zh)
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CN100491281C (en
Inventor
鞠秉秀
詹学斌
詹乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIAOXI CONCRETE ADDITIVE CO Ltd HULUDAO CITY
Original Assignee
LIAOXI CONCRETE ADDITIVE CO Ltd HULUDAO CITY
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Publication date
Application filed by LIAOXI CONCRETE ADDITIVE CO Ltd HULUDAO CITY filed Critical LIAOXI CONCRETE ADDITIVE CO Ltd HULUDAO CITY
Priority to CNB2007100102518A priority Critical patent/CN100491281C/en
Publication of CN101012112A publication Critical patent/CN101012112A/en
Application granted granted Critical
Publication of CN100491281C publication Critical patent/CN100491281C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials
    • C04B18/025—Grog
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/10—Accelerators; Activators
    • C04B2103/12—Set accelerators
    • 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
    • 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

Abstract

The invention discloses a high-strength concrete accelerator, which comprises the following parts: 40-60% alundum clinker, 20-30% green stone slag or boiling stove slag, 12-25% vanadium slag, 4-6% high-effective dehydragent and 1-2% common dehydragent, wherein the alundum clinker is composed of 28--33% titanium slag, 25-28% pure alkaline, 28-32% limestone and 11-15% coal.

Description

High-strength concrete accelerator
Technical field
The invention belongs to building material field, particularly high-intensity shotcrete accelerator.
Background technology
Mostly there is the cost height in existing Hardenfast, problem such as 28 days loss of strength rates are big, be composited by higher Chemicals of several prices such as high efficiency water reducing agent, calcium formiate, Sodium Fluoride and Mierocrystalline celluloses as the disclosed accelerating chemicals of CN1559965A " Chlorine-free type high-performance concrete accelerator " file, cost height not only, and technical feature is except that early strength, and other technical indicator is identical with accelerating chemicals commonly used.And for example the accelerating chemicals that separates of CN1194926C " shotcrete accelerator " patent is to mix, stir, grind and form with aluminum oxide clinker and boiling furnace slag, its aluminum oxide clinker composition identical substantially with the aluminum oxide clinker of commonly used accelerating chemicals, used industrial waste----boiling furnace slag when just in the end grinding finished product, saved resource, reduced cost, but its technical feature is suitable with accelerating chemicals commonly used.The exploitation trend of present domestic Hardenfast is, the local resource of as far as possible suiting measures to local conditions to adopt, particularly utilize industrial residue to fire aluminum oxide clinker, and the production and the utilisation technology of reference cement and other concrete admixture, when grinding accelerating chemicals, mix blended material class raw material and admixture component, in the hope of the unification of the technique effect of product and economic benefit, social benefit, environmental benefit with dedicated functions.
Summary of the invention
In order to solve the problem that existing Hardenfast intensity is low, cost is high, following technical scheme is proposed.High-strength concrete accelerator, it is made up of following raw materials by weight percent:
Aluminum oxide clinker 40-60%
Green jade slag or boiling furnace slag 20---30%
Vanadium slag 12-25%
High efficiency water reducing agent 4------6%
Ordinary water-reducing agent 1------2%
Wherein aluminum oxide clinker is made up of following raw materials by weight percent:
Titanium slag 28-----33%
Soda ash 25-----28%
Lime 28-----32%
Coal 11-----15%.
The production method of high-strength concrete accelerator of the present invention is at first titanium slag, soda ash, Wingdale and coal to be made into raw material by above-mentioned weight percent, through levigate, add the water balling-up, the kiln that enters 1250 ℃-----1300 ℃ is sintered into aluminum oxide clinker, and then with aluminum oxide clinker, green jade slag or boiling furnace slag, vanadium slag, high efficiency water reducing agent and ordinary water-reducing agent by the metering of above-mentioned weight percent, through batching, mixing, grinding, homogenizing, packing, promptly get this product.
There are 4 kinds to be industrial residue in the used 9 kinds of raw materials of Hardenfast of the present invention, be that titanium slag is to produce the waste residue that ferrotianium is discharged, vanadium slag is for producing the waste residue that vanadium iron is discharged, the green jade slag is to fire the waste residue that chamotte is discharged, and boiling furnace slag is the waste residue of being discharged through the fluidizing furnace Boiling Combustion by coal gangue.The chemical ingredients of these waste residues and Wingdale and coal ash is as shown in table 1.
The chemical ingredients of the various crude fuels of table 1 (%)
Material name Loss on ignition CaO SiO 2 Ai 2O 3 Fe 2O 3 MgO Na 2O TiO 2
Wingdale 39--41 49---51 3---6 1----2 0.8---1.0 0.9----3.0 - -
Titanium slag - 3.0---4.5 6.0--7.5 71--74 1.0---2.5 - - 8--13
The green jade slag - - 37----50 30---42 1-----3 - - -
Vanadium slag - 40---55 25----35 - - 8----12 - -
Boiling furnace slag 1-----3 1------4 45----55 33---38 2-----5 1-----3 - -
Soda ash 39---41 - - - - - 55.5--57.5 -
Coal ash - 3----5 35----50 35---40 2-----5 1----3 - -
The quality index of used high efficiency water reducing agent and ordinary water-reducing agent all should meet the related request among the GB8076---1997 " concrete admixture ".
Every performance index of high-strength concrete accelerator of the present invention all meet the regulation of national building material industry standard JC477-2005 " sprayed concrete accelerating chemicals ".Product performance test result of the present invention sees Table 2.
Table 2 high-strength concrete accelerator The performance test results
Project Time of coagulation min:s≤ 1d ultimate compression strength MPa 〉= 28d compressive strength rate % 〉= Fineness 80 μ m tail over %≤ Water ratio %≤
Initial set Final set
Standard-required acceptable end product/salable product 3:00/5:00 8:00/12:00 7.0/6.0 75/70 15 2.0
Real 1 # 2:20 4:30 11.0 95 9.0 1.8
2 # 2:05 3:20 9.8 92 8.5 1.8
Measured value 3 # 1:60 3:40 10.8 95 11.2 1.85
4 # 2:20 4:03 9.5 91 9.0 2
5 # 2:00 3:30 9.4 92 8.5 2
Annotate: 1 #, 2 #, 3 #, 4 #, 5 #Represent the numbering of sample respectively, wherein the volume of accelerating chemicals is 5% of a cement weight.
By the test result of preceding addressing table 2 as can be known the present invention have following advantage:
Because the shared ratios of industrial residue such as titanium slag, green jade slag and vanadium slag reach more than 50% in raw material, so product cost is low.The technical feature advanced person of product, its time of coagulation is short, and early strength and later strength are all high, increase the cohesive force of sprayed concrete, reduce rebound degree, reduce dust, save cement, improve operating efficiency, so the present invention has outstanding economic benefit, environmental benefit and social benefit.
Embodiment
Embodiment
Table 3 high-strength concrete accelerator batching example (weight percent %)
Figure A20071001025100051
Table 4 aluminum oxide clinker batching example (weight percent %)
Figure A20071001025100052
Annotate: the ash content of used raw coal is 40%, and thermal value is 15903KJ/Kg----18833kJ/kg.

Claims (1)

1, high-strength concrete accelerator, it is made up of following raw materials by weight percent:
Aluminum oxide clinker 40-60%
Green jade slag or boiling furnace slag 20---30%
Vanadium slag 12-25%
High efficiency water reducing agent 4------6%
Ordinary water-reducing agent 1------2%
Wherein aluminum oxide clinker is made up of following raw materials by weight percent:
Titanium slag 28-----33%
Soda ash 25-----28%
Wingdale 28-----32%
Coal 11-----15%.
CNB2007100102518A 2007-01-27 2007-01-27 High-strength concrete accelerator Expired - Fee Related CN100491281C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100102518A CN100491281C (en) 2007-01-27 2007-01-27 High-strength concrete accelerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100102518A CN100491281C (en) 2007-01-27 2007-01-27 High-strength concrete accelerator

Publications (2)

Publication Number Publication Date
CN101012112A true CN101012112A (en) 2007-08-08
CN100491281C CN100491281C (en) 2009-05-27

Family

ID=38699857

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2007100102518A Expired - Fee Related CN100491281C (en) 2007-01-27 2007-01-27 High-strength concrete accelerator

Country Status (1)

Country Link
CN (1) CN100491281C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102964076A (en) * 2012-09-24 2013-03-13 北京工业大学 Alkali and chloride-free enhancement type powder concrete setting accelerator
CN104529340A (en) * 2015-01-26 2015-04-22 江西省建筑材料工业科学研究设计院 Dry-mixed mortar composite mineral powder plasticizer and preparation method thereof
CN104891846A (en) * 2015-05-22 2015-09-09 徐州中矿大贝克福尔科技股份有限公司 Special accelerator for coal gangue-based sprayed concrete
CN105130257A (en) * 2015-08-24 2015-12-09 湖州华仑助剂科技有限公司 Environmentally friendly concrete accelerator
CN113561327A (en) * 2021-07-02 2021-10-29 山东春禾新材料研究院有限公司 Anhydrous tank cleaning method for concrete mixer truck
CN114763298A (en) * 2021-01-13 2022-07-19 中国电力科学研究院有限公司 Alkali-free accelerator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102964076A (en) * 2012-09-24 2013-03-13 北京工业大学 Alkali and chloride-free enhancement type powder concrete setting accelerator
CN102964076B (en) * 2012-09-24 2014-06-11 北京工业大学 Alkali and chloride-free enhancement type powder concrete setting accelerator
CN104529340A (en) * 2015-01-26 2015-04-22 江西省建筑材料工业科学研究设计院 Dry-mixed mortar composite mineral powder plasticizer and preparation method thereof
CN104891846A (en) * 2015-05-22 2015-09-09 徐州中矿大贝克福尔科技股份有限公司 Special accelerator for coal gangue-based sprayed concrete
CN105130257A (en) * 2015-08-24 2015-12-09 湖州华仑助剂科技有限公司 Environmentally friendly concrete accelerator
CN114763298A (en) * 2021-01-13 2022-07-19 中国电力科学研究院有限公司 Alkali-free accelerator
CN113561327A (en) * 2021-07-02 2021-10-29 山东春禾新材料研究院有限公司 Anhydrous tank cleaning method for concrete mixer truck

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