CN109553316A - It is a kind of using carbide slag and flyash as the complex cement of mixing material - Google Patents

It is a kind of using carbide slag and flyash as the complex cement of mixing material Download PDF

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Publication number
CN109553316A
CN109553316A CN201811505320.7A CN201811505320A CN109553316A CN 109553316 A CN109553316 A CN 109553316A CN 201811505320 A CN201811505320 A CN 201811505320A CN 109553316 A CN109553316 A CN 109553316A
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CN
China
Prior art keywords
flyash
slag
carbide slag
complex cement
cement
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CN201811505320.7A
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Chinese (zh)
Inventor
叶东忠
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Fuzhou University
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Fuzhou University
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Priority to CN201811505320.7A priority Critical patent/CN109553316A/en
Publication of CN109553316A publication Critical patent/CN109553316A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/24Cements from oil shales, residues or waste other than slag
    • C04B7/26Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/14Cements containing slag
    • C04B7/147Metallurgical slag
    • C04B7/153Mixtures thereof with other inorganic cementitious materials or other activators
    • C04B7/17Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing activators
    • C04B7/19Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/24Cements from oil shales, residues or waste other than slag
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/36Manufacture of hydraulic cements in general
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

The present invention provides a kind of using carbide slag and flyash as the complex cement of mixing material, and raw material is according to weight percent are as follows: dry carbide slag 5~10%, flyash 20%, slag 10%, Portland clinker 55~60%, gypsum 5%, the sum of above-mentioned weight percentage of each component are 100%.The present invention first by carbide slag drying it is broken after, then by formula weigh dry carbide slag, flyash, Portland clinker, slag, gypsum, sequentially adding grinding machine intergrinding can be prepared by complex cement.The present invention prepares complex cement using carbide slag and flyash as mixing material, turns waste into wealth, not only reduces environmental pollution, and product preparation process is simple, lower production costs, complex cement early strength obtained is higher, has preferable social benefit and economic benefit.

Description

It is a kind of using carbide slag and flyash as the complex cement of mixing material
Technical field
The present invention relates to the comprehensive utilizations of solid waste in ecological environment material nd field, are more particularly to a kind of using electric Rock ballast and complex cement of the flyash as mixing material.
Background technique
Cement is plus water mix is at plasticity slurry, and the materials such as energy agglutination sand, stone can harden in air and in water The powdered hydraulic cementing materials of middle hardening.There are many type of cement, are divided into general-purpose cement, cement special and special cement three Major class, wherein complex cement is exactly one of kind of general-purpose cement.Cement plus water has preferable plasticity, cement after mixing and stirring It can get higher intensity after hardening, and the durability of cement is preferable.Therefore, cement is not only widely used in industry and builds with civilian It builds, is also widely used for the engineerings such as traffic, urban construction, agricultural, water conservancy and ocean, and novel cement-base composite material is also answered For the construction of nuclear industry, aerospace industry and other infant industries, to guarantee that going on smoothly for nation-building plan plays very Important role, be widely used prospect.
The primary raw material of manufacture of cement has lime stone, clay and iron powder, due to the continuous expansion of manufacture of cement scale, these The resource in natural material mine is continuously developed utilization and gradually decreases, it is felt to be desirable to have new raw material resources to be substituted.
Carbide slag is the industrial residue being discharged in the chemical plant production production processes such as acetylene and polyvinyl chloride, main component For Ca (OH)2, there are three aspects for the main utilization ways of carbide slag at present: first is for producing construction material, and second is raw Chemical products are produced, third is for environmental improvement.In recent years, someone make using carbide slag raw material by high-temperature calcination preparation The research of cement, but production technology is complicated, and fuel consumption is higher with heat consumption, and discharge amount of exhaust gas is larger, increases production cost.
Flyash refer to after levigate coal dust burns in the boiler in coal-burning power plant from flue discharge, the object collected by dust-precipitator Matter is one of maximum coal-fired byproduct of the current discharge amount in China, specific surface area 2500-7000cm2/ g, main component are SiO2, Al2O3And Fe2O3, it is a kind of typically with the pozzolanic materials of potential activity, and flyash is as cement, coagulation The engineering fields such as production and building, water conservancy and ocean of the native admixture for cement, fired brick and other New Building Materials It is the main path of domestic and international utilization of fly ash at present, not yet discovery is prepared using carbide slag and flyash as mixing material so far The report of complex cement.
Summary of the invention
The object of the present invention is to provide a kind of using carbide slag and flyash as the complex cement of mixing material, it is using electricity Rock ballast prepares complex cement as mixing material with flyash, and not only product preparation process is simple, lower production costs, obtained multiple Cement early strength is higher, and is advantageously implemented environmental protection and the dual purpose to turn waste into wealth.
Of the invention is a kind of using carbide slag and flyash as the complex cement of mixing material, and raw material is according to weight percent Than are as follows: dry carbide slag 5~10%, flyash 20%, slag 10%, Portland clinker 55~60%, gypsum 5%, above-mentioned each component The sum of weight percent is 100%.
The specific steps for preparing complex cement include:
1) it is crushed after drying carbide slag;
2) dry carbide slag, flyash, Portland clinker, slag, gypsum are weighed by above-mentioned formula, it is common sequentially adds grinding machine Grinding can be prepared by complex cement.
The carbide slag selects the carbide slag in chemical plant, moisture < 40wt%, and the flyash selects the powder of concrete company Coal ash, the Portland clinker, slag and gypsum select Portland clinker, slag and the stone in cement plant respectively Cream, grain diameter < 25mm, wherein slag moisture < 1.5wt%.
Carbide slag is dried using drying equipment in the step 1), moisture < 1wt% after drying, and broken rear grain diameter < 25mm。
Complex cement fineness obtained is that 80 μm of square hole screens tail over < 10% after grinding in the step 2.
Remarkable advantage of the invention is: for prior art, the present invention makes full use of carbide slag rich in Ca (OH)2, Fly ash grain is thinner, has the characteristics that potential pozzolanic activity, and it is higher compound to prepare low production cost, early strength Cement, the Ca (OH) after suitable carbide slag and flyash are mixed again, in carbide slag2The pozzolanic activity of flyash can be excited, To accelerate the speed of complex cement hydration reaction, the amount of hydrolysis product of cement is set to increase sharply, therefore can be improved and singly mix fine coal The early strength of ash concrete shortens its setting time, and " carbide slag is made raw material to prepare by high-temperature calcination with prior art Cement " compares, and carbide slag need to only be dried broken rear and flyash, Portland clinker, slag, gypsum by the invention patent Intergrinding can be prepared by the complex cement haveing excellent performance by a certain percentage, and simple production process can reduce fuel consumption and heat Consumption about 7 ~ 14%, reduces the discharge of exhaust gas, not only greatly reduces production cost, improve the market competitiveness, and be conducive to The dual purpose realizing environmental protection and turning waste into wealth.It is as follows by complex cement performance made from the method for the present invention: 3d resistance to compression Intensity 17.6MPa, 3d flexural strength 3.7MPa, 28d compression strength 37.2MPa, 28d flexural strength 6.0MPa, presetting period 110min, final setting time 348min, stability are qualified.
Specific implementation method
Summary of the invention according to the invention implements the present invention.
The composition of raw materials of complex cement of the present invention is according to weight percent are as follows: dry carbide slag 5~10%, flyash 20%, mine Slag 10%, Portland clinker 55~60%, gypsum 5%, the sum of above-mentioned weight percentage of each component are 100%.Wherein, carbide slag The carbide slag in chemical plant, moisture < 40wt% are selected, flyash selects the flyash of concrete company, Portland clinker, mine Slag and gypsum select Portland clinker, slag and the gypsum in cement plant respectively, grain diameter < 25mm, chats Pulp water point < 1.5wt%.
The step of preparation process are as follows:
1) by carbide slag using being crushed after drying equipment drying, moisture < 1wt% after drying is crushed rear grain diameter < 25mm.
2) dry carbide slag, flyash, Portland clinker, slag, gypsum are weighed by above-mentioned formula, sequentially adds grinding machine Intergrinding to cement fineness is that 80 μm of square hole screens tail over < 10%, can be prepared by complex cement.
The following is specific embodiments of the present invention, further illustrates the present invention, but the present invention is not limited only to this.
Embodiment 1
Complex cement is prepared using carbide slag and flyash as mixing material, composition of raw materials is according to weight percent are as follows: dry electricity Rock ballast 5%, flyash 20%, slag 10%, Portland clinker 60%, gypsum 5%.
Preparation step:
1) by carbide slag using being crushed after drying equipment drying, moisture < 1wt% after drying is crushed rear grain diameter < 25mm.
2) dry carbide slag, flyash, Portland clinker, slag, gypsum are weighed by above-mentioned formula, sequentially adds grinding machine Intergrinding to cement fineness is that 80 μm of square hole screens tail over < 10%, can be prepared by complex cement.
3) by standard GB/T/T17671-1999 measurement complex cement product sample difference hydration age compression strength With flexural strength, setting time and stability by standard GB/T 1346-2001 measurement complex cement product sample, measurement knot Fruit is as follows: 3d compression strength 17.6MPa, 3d flexural strength 3.7MPa, 28d compression strength 37.2MPa, 28d flexural strength 6.0MPa, presetting period 110min, final setting time 348min, stability are qualified.
Embodiment 2
Complex cement is prepared using carbide slag and flyash as mixing material, composition of raw materials is according to weight percent are as follows: dry electricity Rock ballast 10%, flyash 20%, slag 10%, Portland clinker 55%, gypsum 5%.
Preparation step:
1) by carbide slag using being crushed after drying equipment drying, moisture < 1wt% after drying is crushed rear grain diameter < 25mm.
2) dry carbide slag, flyash, Portland clinker, slag, gypsum are weighed by above-mentioned formula, sequentially adds grinding machine Intergrinding to cement fineness is that 80 μm of square hole screens tail over < 10%, can be prepared by complex cement.
3) by standard GB/T/T17671-1999 measurement complex cement product sample difference hydration age compression strength With flexural strength, setting time and stability by standard GB/T 1346-2001 measurement complex cement product sample, measurement knot Fruit is as follows: 3d compression strength 16.1MPa, 3d flexural strength 3.5MPa, 28d compression strength 34.1MPa, 28d flexural strength 5.7MPa, presetting period 92min, final setting time 315min, stability are qualified.
Comparative example 1
The composition of raw materials-of complex cement sample (being not incorporated into carbide slag) is compared according to weight percent are as follows: flyash 20%, slag 10%, Portland clinker 65%, gypsum 5%.
Preparation step:
1) flyash, Portland clinker, slag, gypsum are weighed by above-mentioned formula, sequentially adds grinding machine intergrinding to water Mud fineness is that 80 μm of square hole screens tail over < 10%, can be prepared by complex cement.
2) by standard GB/T/T17671-1999 measurement complex cement product sample difference hydration age compression strength With flexural strength, setting time and stability by standard GB/T 1346-2001 measurement complex cement product sample, measurement knot Fruit is as follows: 3d compression strength 15.7MPa, 3d flexural strength 3.4MPa, 28d compression strength 36.1MPa, 28d flexural strength 5.8MPa, presetting period 120min, final setting time 363min, stability are qualified.
Comparative example 2
Complex cement is prepared using carbide slag and flyash as mixing material, composition of raw materials is according to weight percent are as follows: dry electricity Rock ballast 15%, flyash 20%, slag 10%, Portland clinker 50%, gypsum 5%.
Preparation step:
1) by carbide slag using being crushed after drying equipment drying, moisture < 1wt% after drying is crushed rear grain diameter < 25mm.
2) dry carbide slag, flyash, Portland clinker, slag, gypsum are weighed by above-mentioned formula, sequentially adds grinding machine Intergrinding to cement fineness is that 80 μm of square hole screens tail over < 10%, can be prepared by complex cement.
3) by standard GB/T/T17671-1999 measurement complex cement product sample difference hydration age compression strength With flexural strength, setting time and stability by standard GB/T 1346-2001 measurement complex cement product sample, measurement knot Fruit is as follows: 3d compression strength 15.1MPa, 3d flexural strength 3.3MPa, 28d compression strength 32.1MPa, 28d flexural strength 5.4MPa, presetting period 72min, final setting time 278min, stability are qualified.
The foregoing is merely better embodiment of the invention, all equivalent changes done according to scope of the present invention patent With modification, it is all covered by the present invention.

Claims (4)

1. a kind of using carbide slag and flyash as the complex cement of mixing material, it is characterised in that: the original of the complex cement Material is according to weight percent are as follows: dry carbide slag 5~10%, flyash 20%, slag 10%, Portland clinker 55~60%, stone Cream 5%, the sum of above-mentioned weight percentage of each component are 100%;
The preparation method of the complex cement includes the following steps:
1) it is crushed after drying carbide slag;
2) dry carbide slag, flyash, Portland clinker, slag, gypsum are weighed by above-mentioned formula, it is common sequentially adds grinding machine Complex cement is made in grinding.
2. according to claim 1 a kind of using carbide slag and flyash as the complex cement of mixing material, feature exists In: the carbide slag selects the carbide slag in chemical plant, moisture < 40wt%, and the flyash selects the flyash of concrete company, The Portland clinker, slag and gypsum select Portland clinker, slag and the gypsum in cement plant respectively, Grain partial size < 25mm, wherein slag moisture < 1.5wt%.
3. according to claim 1 a kind of using carbide slag and flyash as the complex cement of mixing material, feature exists In: carbide slag is dried using drying equipment in the step 1), moisture < 1wt% after drying, grain diameter < 25mm after being crushed.
4. according to claim 1 a kind of using carbide slag and flyash as the complex cement of mixing material, feature exists In: complex cement fineness obtained is that 80 μm of square hole screens tail over < 10% after grinding in the step 2.
CN201811505320.7A 2018-12-10 2018-12-10 It is a kind of using carbide slag and flyash as the complex cement of mixing material Pending CN109553316A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111517684A (en) * 2020-05-19 2020-08-11 张红卫 Composite cement using carbide slag and fly ash as mixed material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001030944A1 (en) * 1999-10-22 2001-05-03 Chunlei Zheng Clean combustion of coal, utility of the concomitant product of the clean combustion and the product by using the concomitant product
CN1450013A (en) * 2002-10-14 2003-10-22 吴发辉 Method for producing compound cement blended directly with separated flyash and the made compound cement thereby
CN101074149B (en) * 2007-06-26 2010-04-21 北京科技大学 Method for producing cement with little clinker by oil shale flyash
CN102276175A (en) * 2011-01-06 2011-12-14 内蒙古大唐国际再生资源开发有限公司 Fly ash aluminum extraction residue cement
CN106554159A (en) * 2015-09-25 2017-04-05 徐勤凤 A kind of cement and preparation method thereof
CN108298843A (en) * 2018-03-27 2018-07-20 内蒙古云农实业有限公司 A kind of solid waste composite gelled material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001030944A1 (en) * 1999-10-22 2001-05-03 Chunlei Zheng Clean combustion of coal, utility of the concomitant product of the clean combustion and the product by using the concomitant product
CN1450013A (en) * 2002-10-14 2003-10-22 吴发辉 Method for producing compound cement blended directly with separated flyash and the made compound cement thereby
CN101074149B (en) * 2007-06-26 2010-04-21 北京科技大学 Method for producing cement with little clinker by oil shale flyash
CN102276175A (en) * 2011-01-06 2011-12-14 内蒙古大唐国际再生资源开发有限公司 Fly ash aluminum extraction residue cement
CN106554159A (en) * 2015-09-25 2017-04-05 徐勤凤 A kind of cement and preparation method thereof
CN108298843A (en) * 2018-03-27 2018-07-20 内蒙古云农实业有限公司 A kind of solid waste composite gelled material

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
刘春英: "电石渣的综合利用 ", 《上海建材》 *
崔明东: "煤矸石灰渣水泥的制备及其性能的研究 ", 《黑龙江生态工程职业学院学报》 *
廖世文: "我公司提高水泥混合材掺量的方法探讨", 《水泥》 *
潘荣伟等: "复合胶凝材料对轻集料混凝土力学性能影响研究", 《混凝土》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111517684A (en) * 2020-05-19 2020-08-11 张红卫 Composite cement using carbide slag and fly ash as mixed material

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