CN101172801A - High addition fly ash cement and method for producing the same - Google Patents

High addition fly ash cement and method for producing the same Download PDF

Info

Publication number
CN101172801A
CN101172801A CNA2006101142039A CN200610114203A CN101172801A CN 101172801 A CN101172801 A CN 101172801A CN A2006101142039 A CNA2006101142039 A CN A2006101142039A CN 200610114203 A CN200610114203 A CN 200610114203A CN 101172801 A CN101172801 A CN 101172801A
Authority
CN
China
Prior art keywords
cement
fly ash
gypsum
high addition
ash cement
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
CNA2006101142039A
Other languages
Chinese (zh)
Other versions
CN100519462C (en
Inventor
韩敏芳
杨志宾
付毅
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.)
China University of Mining and Technology Beijing CUMTB
Original Assignee
China University of Mining and Technology Beijing CUMTB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology Beijing CUMTB filed Critical China University of Mining and Technology Beijing CUMTB
Priority to CNB2006101142039A priority Critical patent/CN100519462C/en
Publication of CN101172801A publication Critical patent/CN101172801A/en
Application granted granted Critical
Publication of CN100519462C publication Critical patent/CN100519462C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • 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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302Water reducers
    • 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
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention relates to high-dosage pulverized coal cement and the production method thereof, and belongs to the technical field of cement. The invention aims to realize high-dosage pulverized coal cement with the coal ash quality of over 40 percent and the simple production art. The invention comprises the steps as follows; the coal ash and the cement clinker are taken as the main material, after respectively grinding, a little gypsum and proper water decreasing agent and kindling agent are added, and mixing ball grinding treatment is performed. All properties meet the national coal ash cement standard requirement. The pulverized coal cement produced by the invention has the advantages of large dosage of coal ash, high early intensity, stable product quality, low production cost and small energy consumption. The invention has great significance for adopting coal ash castoff cosmically and saving the cost of cement.

Description

High addition fly ash cement and preparation method
Technical field
The present invention relates to a kind of cement and preparation method thereof, more particularly, the present invention relates to a kind of pulverized fuel ash cement and preparation method thereof.
Background technology
Flyash is the dust of collecting from coal-fired powder boiler smoke, is one of industry " three wastes ".China is maximum in the world coal production and consumes country, follows the comprehensive utilization of coal, has produced a large amount of flyash.Utilization of fly ash rate such as developed country such as European Union, the U.S. has reached 70~90%, and China's utilization of fly ash rate only is 30~40%.
Cement is the consolidating material of consumption maximum in the engineering construction, and Chinese cement annual production has at present broken through 700,000,000 tons, occupies the No. 1 in the world.But its pollution is increasing, does not meet economic Sustainable development.For a long time, flyash is used widely in China's Cement industry.Nowadays, pulverized fuel ash cement has become one of China's six big cement types.
Pulverized fuel ash cement has generally that hydration heat is low, drying shrinkage is little, later strength is high, bleeding rate is low, helps advantages such as construction during hot season and remote transportation.But doping quantity of fly ash is little, early strength is low, time of coagulation length also be undisputable fact.
It is 20~40% that China's current standards allows the incorporation of flyash, but can only mix usually in the actual production about 20%, and nonetheless the early strength of pulverized fuel ash cement is still very low.
The pulverized fuel ash cement doping quantity of fly ash of introducing in the Chinese patent 88102201.2 is 20~40%, but needs to add the hydrofluoric acid dehydrated gyp-, and this is very big for environmental hazard.The less clinker high early strength flyash cement of introducing among the patent CN 1220978A, doping quantity of fly ash are 30~40%, but need to add water-granulated slag 30~40% simultaneously, and actual is ore slag fly ash cement.The pulverized fuel ash cement of the wet production that Chinese patent 94116979.0 is introduced has adopted semi-hydrated gypsum, has the fast characteristics of condensing, but is prone to the sudden strain of a muscle coagulation phenomena in engineering is used.Introduced a kind of phosphoric acid pulverized fuel ash cement among the patent CN1554611A, but its production process complexity, and using has limitation, only is applicable to quick fix engineering etc.
Also do not have a kind of use flyash amount to surpass 40% and the simple pulverized fuel ash cement of production technique at present, and there is the problem that time of coagulation is long, early strength is low in general pulverized fuel ash cement.
Summary of the invention
The present invention is directed to the problems referred to above, propose a kind of high addition fly ash cement, can bring up to 40%~60% to the consumption of flyash by present 20% level, correspondingly reduce the grog consumption, thereby can reduce cost this cement early strength height, good stability significantly.
Concrete technical scheme is as follows.
The high addition fly ash cement that the present invention proposes mainly is made up of Portland clinker and flyash, and described high addition fly ash cement also comprises mixed gypsum, water reducer and exciting agent, and described mixed gypsum is the mixture of dihydrate gypsum and calcined gypsum.
Preferably, in the total amount of described high addition fly ash cement, described high addition fly ash cement comprises the component of following mass percentage content: flyash 40%~60%, Portland clinker account for 31.5%~58.9%, mixed gypsum 1%~6%, water reducer 0.05%~0.5%, exciting agent 0.05%~2%.
Preferably, described flyash control size 400 mesh screen residues are not more than 10%, and described cement clinker control size 200 mesh screen residues are not more than 10%.
Preferably, in described mixed gypsum, the weight ratio of dihydrate gypsum and calcined gypsum is 0.1~10: 1.More preferably, described calcined gypsum adopts the mixture calcining of one or more kinds in dihydrate gypsum, phosphogypsum and the desulfurated plaster to form, and calcining temperature is controlled at 700~900 ℃, keeps 2~4 hours down at 700~900 ℃.
Preferably, described water reducer is one or more kinds in the sulfonate that is selected from sulfonated lignin, molasses, aromatic series polycyclic polymers, naphthalene water reducer, the carbolineum water reducer.
Preferably, described exciting agent is one or more kinds in yellow soda ash, sodium sulfate, alum, calcium chloride, potassium hydroxide, salt of wormwood, the water glass.
More preferably, described high addition fly ash cement is that all components raw material is mixed, ball milling 1~10 hour, and control size is that 200 mesh screen residues are not more than 10% and obtain.
The preparation method of high addition fly ash cement of the present invention is as follows: all components raw material mixed, and ball milling 1~10 hour, control size is that 200 mesh screen residues are not more than 10%, obtains described high addition fly ash cement.
Wherein, the cement clinker treatment process is: cement clinker is carried out fragmentation, grinding, and control size 200 mesh screen residues are not more than 10%;
The flyash treatment process is: flyash is carried out grinding handle, control size 400 mesh screen residues are not more than 10%;
The mixed gypsum treatment process is: calcined gypsum adopts the mixture calcining of one or more kinds in dihydrate gypsum, phosphogypsum and the desulfurated plaster to form, and calcining temperature is controlled at 700~900 ℃, keeps 2~4 hours down at 700~900 ℃; Calcined gypsum is mixed with dihydrate gypsum, and ball milling obtains mixed gypsum, and control size 200 mesh screen residues are not more than 10%;
The treatment process of water reducer and exciting agent is: water reducer and exciting agent are processed into powder type.
High addition fly ash cement of the present invention is little except the pollution that has general pulverized fuel ash cement and have, low hydration heat, alkali resistant-aggregate reaction, resisting erosion of sulfate, prevent good characteristics such as steel bar corrosion, anti-drying shrinkage, good security, also solved the problem that early strength is low, time of coagulation is long, and later strength is still very high.Because doping quantity of fly ash is big, reduce production costs significantly simultaneously, so significant for utilizing flyash waste, reduction cement production consumption and cost on a large scale.
Embodiment
Following mode with embodiment is further explained the present invention.
Now employed flyash in the embodiments of the invention is listed in the table 1, but flyash used herein is not limited to these flyash, can according to circumstances select.
Table 1 chemical composition of PCA
The flyash code name SiO2 Al2O3 Fe2O3 CaO MgO Na2O K2O TiO2 Loss on ignition
HB-F 51.31 32.10 3.35 1.64 0.84 0.36 1.12 1.11 5.02
SD-F 51.76 23.84 12.95 4.62 1.68 0.35 1.79 0.87 1.51
HN-F 37.98 24.52 2.89 4.04 1.16 0.43 0.94 0.88 25.58
Embodiment 1
Adopt HB-F flyash in the table 1, control size 400 mesh screen residues 10%, with dihydrate gypsum: the weight ratio of calcined gypsum=1: 2 mixes dihydrate gypsum and calcined gypsum obtains mixed gypsum, and water reducer adopts wooden sodium sulfonate; (yellow soda ash: the mass ratio of alum=1: 1), above various raw materials are mixed according to mass percentage content listed in the table 2, ball milling is controlled overall granularity 200 mesh screen residues 10% to the mixture of exciting agent employing yellow soda ash and alum.Measure performance according to the GB1344-1999 method of inspection, measurement result is listed in the table 3.Can see that from the result cement of present embodiment reaches 425 label cement the GB1344-1999.
Embodiment 2
Adopt SD-F flyash in the table 1, control size 400 mesh screen residues 10%, with dihydrate gypsum: the weight ratio of calcined gypsum=1: 10 mixes dihydrate gypsum and calcined gypsum obtains mixed gypsum, and water reducer adopts wooden sodium sulfonate; Exciting agent adopts the mixture (calcium chloride: the mass ratio of sodium sulfate=1: 2), above various raw materials are mixed ball milling, control size 200 mesh screen residues 10% according to mass percentage content listed in the table 2 of calcium chloride and sodium sulfate.Measure performance according to the GB1344-1999 method of inspection, measurement result is listed in the table 3.Can see that from the result cement of present embodiment reaches 525 label cement the GB1344-1999.
Embodiment 3
Adopt HN-F flyash in the table 1, control size 400 mesh screen residues 10%, with dihydrate gypsum: the weight ratio of calcined gypsum=10: 1 mixes dihydrate gypsum and calcined gypsum obtains mixed gypsum, and water reducer adopts the polymethine sodium naphthalene sulfonate; Exciting agent adopts the mixture (calcium chloride: the mass ratio of sodium sulfate=1: 3), above various raw materials are mixed ball milling, control size 200 mesh screen residues 10% according to mass percentage content listed in the table 2 of calcium chloride and sodium sulfate.Measure performance according to the GB1344-1999 method of inspection, measurement result is listed in the table 3.Can see that from the result cement of present embodiment reaches 325 label cement the GB1344-1999.
Embodiment 4
Adopt HB-F flyash in the table 1, control size 400 mesh screen residues 10%, with dihydrate gypsum: the weight ratio of calcined gypsum=1: 2 mixes dihydrate gypsum and calcined gypsum obtains mixed gypsum, and water reducer adopts wooden sodium sulfonate; Exciting agent adopts the mixture (yellow soda ash: alum: the mass ratio of sodium sulfate=3: 2: 3) of yellow soda ash, alum and sodium sulfate.Above various raw materials are mixed ball milling, control size 200 mesh screen residues 10% according to mass percentage content listed in the table 2.Measure performance according to the GB1344-1999 method of inspection, measurement result is listed in the table 3.Can see that from the result cement of present embodiment reaches 325 label cement the GB1344-1999.
Embodiment 5
Adopt SD-F flyash in the table 1, control size 400 mesh screen residues 10%, with dihydrate gypsum: the weight ratio of calcined gypsum=1: 10 mixes dihydrate gypsum and calcined gypsum obtains mixed gypsum, water reducer adopts the polymethine sodium naphthalene sulfonate, and exciting agent adopts the mixture (calcium chloride: the mass ratio of sodium sulfate=2: 1) of calcium chloride and sodium sulfate.Above various raw materials are mixed ball milling, control size 200 mesh screen residues 10% according to mass percentage content listed in the table 2.Measure performance according to the GB1344-1999 method of inspection, measurement result is listed in the table 3.Can see that from the result cement of present embodiment reaches 525 label cement the GB1344-1999.
Embodiment 6
Adopt HB-F flyash in the table 1, control size 400 mesh screen residues 10%, with dihydrate gypsum: the weight ratio of calcined gypsum=1: 1 mixes dihydrate gypsum and calcined gypsum obtains mixed gypsum, water reducer adopts the polymethine sodium naphthalene sulfonate, exciting agent adopts the mixture (yellow soda ash: sodium sulfate: the mass ratio of alum=2: 2: 3) of yellow soda ash, sodium sulfate and alum, above various raw materials are mixed ball milling, control size 200 mesh screen residues 10% according to mass percentage content listed in the table 2.Measure performance according to the GB1344-1999 method of inspection, measurement result is listed in the table 3.Can see that from the result cement of present embodiment reaches 325 label cement the GB1344-1999.
Embodiment 7
Adopt HB-F flyash in the table 1, control size 400 mesh screen residues 10%, with dihydrate gypsum: the weight ratio of calcined gypsum=1: 2 mixes dihydrate gypsum and calcined gypsum obtains mixed gypsum, and water reducer adopts polymethine anthracene sulfonic acid sodium; Exciting agent adopts the mixture (yellow soda ash: sodium sulfate: alum: the mass ratio of calcium chloride=3: 2: 3: 1) of yellow soda ash, sodium sulfate, alum and calcium chloride.Above various raw materials are mixed ball milling, control size 200 mesh screen residues 10% according to mass percentage content listed in the table 2.Measure performance according to the GB1344-1999 method of inspection, measurement result is listed in the table 3.Can see that from the result cement of present embodiment reaches 325 label cement the GB1344-1999.
Embodiment 8
Adopt HB-F flyash in the table 1, control size 400 mesh screen residues 10%, with dihydrate gypsum: the weight ratio of calcined gypsum=1: 10 mixes dihydrate gypsum and calcined gypsum obtains mixed gypsum, and water reducer adopts polymethine anthracene sulfonic acid sodium; Exciting agent adopts the mixture (yellow soda ash: sodium sulfate: alum: the mass ratio of calcium chloride=3: 2: 3: 2) of yellow soda ash, sodium sulfate, alum and calcium chloride.Above various raw materials are mixed ball milling, control size 200 mesh screen residues 10% according to mass percentage content listed in the table 2.Measure performance according to the GB1344-1999 method of inspection, measurement result is listed in the table 3.Can see that from the result cement of present embodiment reaches 425 label cement the GB1344-1999.
Table 2
Sequence number Flyash % Cement clinker % Mixed gypsum % Water reducer % Exciting agent % Corresponding cement mark
Embodiment 1 40 55 4 0.25 0.75 425
Embodiment 2 40 55.5 3 0.4 1.1 525
Embodiment 3 40 54 5 0.25 0.75 325
Embodiment 4 50 45 4 0.3 0.7 325
Embodiment 5 50 44.5 4 0.4 1.1 525
Embodiment 6 55 39 5 0.25 0.75 325
Embodiment 7 60 33.5 5 0.4 1.1 325
Embodiment 8 60 33 5.5 0.4 1.1 425
According to standard GB 1344-1999 (Portland blast, Portland pozzolana cement and Portland fly ash cement standard) regulation the method for inspection, the doping quantity of fly ash that detection embodiment 1~3 obtains is 40% cement performance, satisfies the Portland fly ash cement standard of label 32.5~42.5 among the GB1344-1999.The specific performance index is: the presetting period is 90min, and final setting time is 160min, and 3 days, 7 days, 28 days folding strength is respectively 5.5MPa, 7.5MPa, 9.9MPa, and 3 days, 7 days, 28 days ultimate compression strength is respectively 19.9MPa, 29.4MPa, 42.5Mpa.
Adopt the method for inspection of GB1344-1999 regulation, detect the cement that doping quantity of fly ash is respectively 50% (embodiment 4 and 5), 55% (embodiment 6), 60% (embodiment 7 and 8), performance is as follows:
Doping quantity of fly ash 50% (embodiment 4 and 5): the presetting period is 56min, and final setting time is 147min, and 3 days, 28 days folding strength is respectively 4.3MPa, 9.0MPa, and 3 days, 28 days ultimate compression strength is respectively 22.2MPa, 52.5Mpa.
Doping quantity of fly ash 55% (embodiment 6): the presetting period is 100min, final setting time is 210min, 3 days, 7 days, 28 days folding strength is respectively 3.0MPa, 6.1MPa, 10.1MPa, 3 days, 7 days, 28 days ultimate compression strength is respectively 11.3MPa, 20.3MPa, 35.6Mpa, three months ultimate compression strength 45Mpa.
Doping quantity of fly ash 60% (embodiment 7 and 8): the presetting period is 58min, final setting time is 90min, 3 days, 7 days, 28 days folding strength is respectively 4.5MPa, 6.6MPa, 8.45MPa, 3 days, 7 days, 28 days ultimate compression strength is respectively 15.1MPa, 31.7MPa, 48.9MPa, three months ultimate compression strength 51.8Mpa.
Can see that from above-mentioned performance measurement result high addition fly ash cement of the present invention can reach the performance that label in the GB1344-1999 Portland fly ash cement standard is 325~525 cement.
Table 3 pulverized fuel ash cement embodiment performance table
Figure A20061011420300091
As can be seen from Table 3, high addition fly ash cement of the present invention has solved the problem that general pulverized fuel ash cement time of coagulation is long, early strength is low.Just final setting time is adjustable for high addition fly ash cement of the present invention, and relative time is shorter, and early strength and later strength are all higher.High addition fly ash cement preparation method of the present invention utilizes for flyash is extensive and reduces cement production consumption and cost provides an effective way.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.

Claims (9)

1. high addition fly ash cement, mainly form by Portland clinker and flyash, it is characterized in that: described high addition fly ash cement also comprises mixed gypsum, water reducer and exciting agent, and described mixed gypsum is the mixture of dihydrate gypsum and calcined gypsum.
2. high addition fly ash cement as claimed in claim 1, it is characterized in that: in the total amount of described high addition fly ash cement, described high addition fly ash cement comprises the component of following mass percentage content: flyash 40%~60%, Portland clinker account for 31.5%~58.9%, mixed gypsum 1%~6%, water reducer 0.05%~0.5%, exciting agent 0.05%~2%.
3. high addition fly ash cement as claimed in claim 1 or 2 is characterized in that: described flyash control size 400 mesh screen residues are not more than 10%, and described cement clinker control size 200 mesh screen residues are not more than 10%.
4. high addition fly ash cement as claimed in claim 1 or 2 is characterized in that: in described mixed gypsum, the weight ratio of dihydrate gypsum and calcined gypsum is 0.1~10: 1.
5. high addition fly ash cement as claimed in claim 4, it is characterized in that: described calcined gypsum adopts the mixture calcining of one or more kinds in dihydrate gypsum, phosphogypsum and the desulfurated plaster to form, calcining temperature is controlled at 700~900 ℃, keeps 2~4 hours down at 700~900 ℃.
6. high addition fly ash cement as claimed in claim 1 or 2 is characterized in that: described water reducer is one or more kinds in the sulfonate that is selected from sulfonated lignin, molasses, aromatic series polycyclic polymers, naphthalene water reducer, the carbolineum water reducer.
7. high addition fly ash cement as claimed in claim 1 or 2 is characterized in that: described exciting agent is one or more kinds in yellow soda ash, sodium sulfate, alum, calcium chloride, potassium hydroxide, salt of wormwood, the water glass.
8. high addition fly ash cement as claimed in claim 1 or 2 is characterized in that: all components raw material mixed, and ball milling 1~10 hour, control size is that 200 mesh screen residues are not more than 10%, obtains described high addition fly ash cement.
9. the preparation method of each described high addition fly ash cement in the claim 1~8, it is characterized in that: all components raw material is mixed, ball milling 1~10 hour, control size are that 200 mesh screen residues are not more than 10%, obtain described high addition fly ash cement;
Wherein, the cement clinker treatment process is: cement clinker is carried out fragmentation, grinding, and control size 200 mesh screen residues are not more than 10%;
The flyash treatment process is: flyash is carried out grinding handle, control size 400 mesh screen residues are not more than 10%;
The mixed gypsum treatment process is: calcined gypsum adopts the mixture calcining of one or more kinds in dihydrate gypsum, phosphogypsum and the desulfurated plaster to form, and calcining temperature is controlled at 700~900 ℃, keeps 2~4 hours down at 700~900 ℃; Calcined gypsum is mixed with dihydrate gypsum, and ball milling obtains mixed gypsum, and control size 200 mesh screen residues are not more than 10%;
The treatment process of water reducer and exciting agent is: water reducer and exciting agent are processed into powder type.
CNB2006101142039A 2006-11-01 2006-11-01 High addition fly ash cement and method for producing the same Expired - Fee Related CN100519462C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006101142039A CN100519462C (en) 2006-11-01 2006-11-01 High addition fly ash cement and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006101142039A CN100519462C (en) 2006-11-01 2006-11-01 High addition fly ash cement and method for producing the same

Publications (2)

Publication Number Publication Date
CN101172801A true CN101172801A (en) 2008-05-07
CN100519462C CN100519462C (en) 2009-07-29

Family

ID=39421590

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006101142039A Expired - Fee Related CN100519462C (en) 2006-11-01 2006-11-01 High addition fly ash cement and method for producing the same

Country Status (1)

Country Link
CN (1) CN100519462C (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102070317A (en) * 2010-11-26 2011-05-25 北京新奥混凝土集团有限公司 Mineral admixture concrete
CN102092973A (en) * 2010-12-17 2011-06-15 南京工业大学 Flyash cement and preparation method thereof
CN102311239A (en) * 2011-06-15 2012-01-11 浙江天达环保股份有限公司 Compound activation method for improving activity of coal ash
CN102531421A (en) * 2010-12-13 2012-07-04 北京金源化学集团有限公司 Cement with low carbon dioxide emission and preparation method thereof
CN101580348B (en) * 2009-06-22 2012-11-07 准格尔旗粉煤灰煤矸石研发中心 Large-doping-amount fly ash cement and preparation method thereof
CN102826815A (en) * 2010-04-28 2012-12-19 同济大学 High-calcium fly ash solid sealing material and preparation method thereof
CN103011636A (en) * 2012-11-23 2013-04-03 苏州科信遮阳新材料科技有限公司 Fly ash cement
CN103466972A (en) * 2013-08-28 2013-12-25 句容联众科技开发有限公司 Sulfate corrosion resistance cement
CN104062407A (en) * 2014-07-07 2014-09-24 江苏名和集团有限公司 Detection method for desulfurized fly ash
CN104370484A (en) * 2013-08-16 2015-02-25 山西华通蓝天环保有限公司 Early strength type high mixing quantity activation ultrafine fly ash cement
CN104649638A (en) * 2014-06-26 2015-05-27 柳州市够旺贸易有限公司 Water seepage-preventive cement
CN105130224A (en) * 2015-07-10 2015-12-09 福州大学 Neutral sodium salt alkali-activation low-calcium fly ash cement and use method of same
CN105967623A (en) * 2016-05-09 2016-09-28 马振义 Gypsum-based foam material with thermal insulation and preparation method thereof
CN111303890A (en) * 2020-01-21 2020-06-19 新疆盛洁环境技术有限责任公司 Curing agent for solid waste treatment and application thereof
CN111362601A (en) * 2020-03-18 2020-07-03 贵州余庆泰龙建材有限公司 High-doping-amount phosphogypsum cement clinker cementing material and application thereof
CN113173724A (en) * 2021-03-08 2021-07-27 武汉理工大学 Red mud-based cementing material excitant and red mud-based goaf filling material
CN113336459A (en) * 2020-09-14 2021-09-03 辰溪县宏兴新材料科技有限公司 Ultrahigh-toughness high-mixing-amount pulverized coal cement-based composite material and preparation method thereof
CN113511828A (en) * 2021-07-27 2021-10-19 江苏润邦再生资源科技股份有限公司 Exciting agent, preparation thereof and method for preparing cement clinker by exciting fly ash by using exciting agent

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1049199C (en) * 1995-08-16 2000-02-09 曹龙 Process for producing high strength multifunctional cement
CN1187474A (en) * 1997-01-07 1998-07-15 严智荣 Unburned flyash silicate cement and preparing process thereof
CN100445227C (en) * 2006-04-30 2008-12-24 陈宏山 Building mortar gel material

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101580348B (en) * 2009-06-22 2012-11-07 准格尔旗粉煤灰煤矸石研发中心 Large-doping-amount fly ash cement and preparation method thereof
CN102826815A (en) * 2010-04-28 2012-12-19 同济大学 High-calcium fly ash solid sealing material and preparation method thereof
CN102070317A (en) * 2010-11-26 2011-05-25 北京新奥混凝土集团有限公司 Mineral admixture concrete
CN102531421A (en) * 2010-12-13 2012-07-04 北京金源化学集团有限公司 Cement with low carbon dioxide emission and preparation method thereof
CN102092973A (en) * 2010-12-17 2011-06-15 南京工业大学 Flyash cement and preparation method thereof
CN102311239A (en) * 2011-06-15 2012-01-11 浙江天达环保股份有限公司 Compound activation method for improving activity of coal ash
CN102311239B (en) * 2011-06-15 2013-02-06 浙江天达环保股份有限公司 Compound activation method for improving activity of coal ash
CN103011636A (en) * 2012-11-23 2013-04-03 苏州科信遮阳新材料科技有限公司 Fly ash cement
CN104370484A (en) * 2013-08-16 2015-02-25 山西华通蓝天环保有限公司 Early strength type high mixing quantity activation ultrafine fly ash cement
CN103466972A (en) * 2013-08-28 2013-12-25 句容联众科技开发有限公司 Sulfate corrosion resistance cement
CN104649638A (en) * 2014-06-26 2015-05-27 柳州市够旺贸易有限公司 Water seepage-preventive cement
CN104062407A (en) * 2014-07-07 2014-09-24 江苏名和集团有限公司 Detection method for desulfurized fly ash
CN105130224A (en) * 2015-07-10 2015-12-09 福州大学 Neutral sodium salt alkali-activation low-calcium fly ash cement and use method of same
CN105967623A (en) * 2016-05-09 2016-09-28 马振义 Gypsum-based foam material with thermal insulation and preparation method thereof
CN111303890A (en) * 2020-01-21 2020-06-19 新疆盛洁环境技术有限责任公司 Curing agent for solid waste treatment and application thereof
CN111303890B (en) * 2020-01-21 2022-03-08 新疆盛洁环境技术有限责任公司 Curing agent for solid waste treatment and application thereof
CN111362601A (en) * 2020-03-18 2020-07-03 贵州余庆泰龙建材有限公司 High-doping-amount phosphogypsum cement clinker cementing material and application thereof
CN113336459A (en) * 2020-09-14 2021-09-03 辰溪县宏兴新材料科技有限公司 Ultrahigh-toughness high-mixing-amount pulverized coal cement-based composite material and preparation method thereof
CN113173724A (en) * 2021-03-08 2021-07-27 武汉理工大学 Red mud-based cementing material excitant and red mud-based goaf filling material
CN113173724B (en) * 2021-03-08 2022-03-18 武汉理工大学 Red mud-based cementing material excitant and red mud-based goaf filling material
CN113511828A (en) * 2021-07-27 2021-10-19 江苏润邦再生资源科技股份有限公司 Exciting agent, preparation thereof and method for preparing cement clinker by exciting fly ash by using exciting agent

Also Published As

Publication number Publication date
CN100519462C (en) 2009-07-29

Similar Documents

Publication Publication Date Title
CN100519462C (en) High addition fly ash cement and method for producing the same
CN101367629B (en) Manufacture of sulphur aluminate cements with electrolytic manganesium residue and method of manufacturing the same
Potgieter An Overview of Cement production: How" green" and sustainable is the industry?
CN102249568B (en) Low-alkali expansive moderate heat silicate cement and production method thereof
CN111393047B (en) High-iron belite cement and preparation method thereof
CN101386494A (en) Composite gelate material and preparation method thereof
CN102826771B (en) Coal gangue activator, and novel clinker-free cementing material and preparation method thereof
CN101074149B (en) Method for producing cement with little clinker by oil shale flyash
CN103304170A (en) Method for producing sulphate aluminum cement
CN101559618A (en) Process for producing fly ash steamed brick by using sintering machine desulfuration ash
CN105272006A (en) Red mud autoclaved aerated concrete building block and preparation method of red mud autoclaved aerated concrete building block
CN101445348B (en) Method for preparing sialite binding material with oil shale waste residues as main raw material
CN109912243B (en) Cement produced by utilizing industrial solid wastes
CN101885589A (en) Compound sulfate cement
CN104261718A (en) Method for producing green ecological cement resistant to seawater corrosion by using wastes from lime factories
CN108218269B (en) Nickel iron slag cementing material and preparation process thereof
CN109896770A (en) A kind of concrete intensifier
CN105016634A (en) Quick hardening early strength phosphorous slag-based cementitious material and prepartion method therefor
CN100478299C (en) Cement reinforcing agent
CN114477803A (en) Production method of carbide slag cement
CN112694272B (en) Low-carbon high-strength cementing material prepared from coal gangue power plant solid waste and preparation method thereof
CN102617060A (en) Kaolin gangue composite powder and application of same in premixed concrete
CN104310812A (en) Green ecological cement and production method thereof
KR102134470B1 (en) Low carbon low burning cement clinker and preparing method thereof
CN110818300A (en) Manganese slag super-sulfate cement and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090729

Termination date: 20151101

EXPY Termination of patent right or utility model