CN102617057A - Low heat composite cementing material - Google Patents
Low heat composite cementing material Download PDFInfo
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- CN102617057A CN102617057A CN2011103900130A CN201110390013A CN102617057A CN 102617057 A CN102617057 A CN 102617057A CN 2011103900130 A CN2011103900130 A CN 2011103900130A CN 201110390013 A CN201110390013 A CN 201110390013A CN 102617057 A CN102617057 A CN 102617057A
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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
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Abstract
The invention provides a low heat composite cementing material, the raw materials of which comprise, by weight: 20-50 parts of cement, 40-70 part of fly ash, 5-25 parts of metakaolin, and 0-8 parts of an exciting agent. The cementing material is prepared by placing the above materials into a material mixer in order, and stirring them for 5-15m at a speed of 60-120 r/m under normal temperature and pressure. Application of the cementing material consists of the steps of: placing 88-97 parts by weight of the cementing material, 3-12 parts by weight of an expanding agent 1.0-1.5 parts by weight of a water reducer, and 24-32 parts by weight of tap water into a cement paste blender for blending based on the speed and procedure prescribed by the national building material industry standard JC/T729-2005: carrying out slow stirring for 117-123s at a rotation speed of 135-145 r/m and a revolution speed of 57-67 r/m, then stopping stirring for 14-16s, and then performing stirring again rapidly for 117-123s at a rotation speed of 275-295 r/m and a revolution speed of 115-135r/m for molding. The material provided in the invention is not only suitable to be used as a building material, and also can be used in backfill grouting, toxic waste curing and other special aspects.
Description
Technical field
The present invention relates to the synthetic of gelling material, obtaining of low-heat gelling material especially, the novel composite gel material that provides has important practical and is worth.
Background technology
Hydration heat is bigger owing to contain more tricalcium silicate for the traditional cement gelling material, causes thermal stress easily in cement concrete inside, forms space and crack, heavy damage cement concrete quality.At present; Mainly containing three class methods aspect the research of low-heat gelling material both at home and abroad: the one, in silicate cement system and mineral composition scope thereof; Industrial residues such as reasonable adding coal ash, slag are like Portland blast, composite Portland cement, low etc.; The 2nd, break through and take the Portland clinker mineral system of mineral and the restriction of scope as the leading factor, as take high belite cement (low-heat portland cement) system of mineral as the leading factor with Dicalcium Phosphate (Feed Grade) with tricalcium silicate; The 3rd, clinker-free baking-free cement, as alkali slag cement, polymers cement etc.Preceding two kinds of methods conveniently are applied to engineering site, and are identical with traditional cement application art, and the third method need be allocated alkali-activator, and technology is relatively complicated, and therefore having limited it can widespread use as traditional cement.
Literature search discloses: 1. Jiang Yong favour etc. is 1996, and 2:13-17 delivers the article of " research of high doping quantity of fly ash low " on " cement " publication, and doping quantity of fly ash reaches 60%, but hydration heat and temperature rise is not studied.2. Wang Shu silver etc. is 1998; 5:23-40 delivers the article of " I level flyash is to the preliminary study of hydrated cementitious heat affecting " on " flyash " publication, studied the influence rule of I level flyash to low-heat, moderate heat cement hydration heat; Low heat cement is mixed the ash amount and is 0-30%; Moderate heat cement is mixed ash amount and is 0-40%, and the result shows that low heat cement mixes 15% ash, and its aquation heat is lower than moderate heat cement and mixes 40% ash.3. Zhao's equality is 2002; 3:1-4; Deliver the article of " flyash is to the influence of high belite cement and concrete workability, intensity and hydration heat " on " cement " publication; Show that mixing 15-35% flyash can obviously improve the serviceability of high belite cement and further reduce the originally lower hydration heat of high belite cement, very be fit to hydration heat is had the mass concrete of strict demand, shortcoming is that high belite cement and concrete strength can descend with the doping quantity of fly ash increase; Therefore advise that I level doping quantity of fly ash is no more than 25%, II level doping quantity of fly ash is no more than 20%.4. Jiang Lin China etc. is 1998; 2:34-35; Deliver the article of " three component low heat cement and concrete research " on " Building technology exploitation " publication, flyash and slag are mixed in PO 42.5 cement, warm peak is reduced; But also move after making exothermic process, wherein mix 7 days hydration heat of about 60% flyash and 20% scoriaceous proportioning for the length of time plain cement hydration heat 48.2%.5. Lu Difen etc. is 2003; 9:28-29; Deliver the article of " preparation of high-activity metakaolin micro mist and the research of complex effect " on " concrete " publication, show that compound can the realization of metakaolin and flyash had complementary advantages, overcome the low shortcoming of flyash early strength; But metakaolin and doping quantity of fly ash have only 5% and 15%, and research contents is less.6. Chen Yi orchid etc. is 2003; 11:41-43; Deliver the article of " the high performance concrete research of mixing metakaolin " on " New Building Materials " publication, flyash with 22.5% and 7.5% metakaolin are incorporated in PO 42.5 cement, and mechanical property only has been discussed.7. J. Bai etc. is 2002; 24:201-209; Deliver the article of " Investigation of the temperature change and heat evolution of mortar incorporating PFA and metakaolin " on " Cement & Concrete Composites " publication; Flyash and metakaolin are joined in the portland cement and can significantly postpone the time that warm peak occurs; Cement-flyash-metakaolin ternary system is more having superiority aspect the reduction temperature rise, but C in the cement that they use
3S content reaches more than 60%, C
2S content has only about 10%, and the flyash maximum doping quantity has only 40%.In sum; This field is to reducing the research of hydration heat of cement, is to be purpose to be applied to mortar and concrete, and mostly main method is in ordinary Portland cement, to mix flyash or slag; And doping quantity of fly ash is less relatively; Thereby hydration heat is relatively still higher, when doping quantity of fly ash more for a long time, early strength is lower again.
The present invention design to the hydration heat of ordinary Portland cement with temperature rise is higher or adding overspray powder coal ash after the early strength problem of lower; Through adding a large amount of flyash, mix a small amount of metakaolin, adopting low water binder ratio and the compound preparation of high efficiency water reducing agent; The degree of mobilization that obtains is big, hydration heat and temperature rise is low, early strength is high composite gelled material; Has the vast market prospect for sales; Not only can be used as general building materials and use, also can be used for the slip casting backfill, solidify Toxic waste, hydration heat had the special use of particular requirement etc.
Summary of the invention
The object of the invention: the low-heat composite gelled material that provides; Solved well ordinary Portland cement in use hydration heat and temperature rise is still higher or add the overspray powder coal ash after the early strength problem of lower; This technology is workable, the advantage that the tool product is stable.
The objective of the invention is to realize like this: a kind of low-heat composite gelled material, divide material prepn and applying step:
The preparation of gelling material:, form by 20-50 part cement, 40-70 part flyash, 5-25 part metakaolin, 0-8 part exciting agent with the material of parts by weight preparation; Through preparing: above-mentioned material agent is placed mixer successively, under normal temperature, normal pressure,, stirred 5-15 minute, get product with 60-120 rev/min speed;
Use moulding: with the material of parts by weight preparation; Form by 88-97 part gelling material, 3-12 part swelling agent, 1.0-1.5 part water reducer, 24-32 part tap water: through mix: above-mentioned material agent is placed the cement paste stirrer successively,, stirred at a slow speed 120 ± 3 seconds with the speed of 140 ± 5 rev/mins of rotations and 62 ± 5 rev/mins of revolution; Stopped mixing 15 ± 1 seconds; With the speed of 285 ± 10 rev/mins of rotations and 125 ± 10 rev/mins of revolution, stir end in 120 ± 3 seconds fast, i.e. mix moulding again;
Wherein exciting agent is made up of 0-5 part calcium hydroxide, 1-3 part SODIUM SULPHATE ANHYDROUS 99PCT, in the compound preparation process of gelling material, directly adds;
Wherein swelling agent is a UEA-H type swelling agent;
Wherein water reducer is naphthalene water reducer or polycarboxylate dehydragent.
Technique effect of the present invention and outstanding feature:
1) compound gelling material; Speed and program according to national building material industry standard JC/T 729-2005 regulation are carried out mix, and the slurries that obtain are according to standard GB/T 8077-2000, GB/T 17671-1999 and GB/T 12959-2008 test, and starching degree of mobilization only is 170-270mm; 3d ultimate compression strength reaches 28.7MPa; 7d ultimate compression strength reaches 35.4MPa, and 28d ultimate compression strength reaches 52.3MPa, and the 3d hydration heat is less than 150 kJkg
-1, the 7d hydration heat is less than 180kJkg
-1
2) gelling material of preparation, according to standard GB/T 2419-2005 and GB/T 17671-1999 test, mortar fluidity is 150-250mm, and 3d ultimate compression strength reaches 12.4MPa, and 7d ultimate compression strength reaches 20.3MPa, and 28d ultimate compression strength reaches 34.6MPa.
3) detect the core temperature of composite gelled material, temperature rise is less than 60 ℃, and the ordinary Portland cement temperature rise is more than 80 ℃, and temperature rise reduces obviously.
The present invention is through the compound gelling material for preparing, and in the process of using moulding, reached the design requirements of low-heat, solved the hydration heat in using well and temperature rise is higher or the early strength problem of lower, shows technical progress.
Description of drawings
The present invention will combine accompanying drawing to be described further.
Among the figure: 1-insulated tank; 2-TP; 3-vacuum flask; 4-slurry; 5-insulating cotton;
As shown in the figure: as to tamp with 5 between putting into 1,3 and 1 with 3, then the composite gelled material slurry 4 behind the mix is packed in 3; After filling, be inserted in 32, guarantee that 2 lower end is in 3 central position; 2 are connected with the recording instrument without paper of energising, to show and to write down temperature data.
Accompanying drawing 2 is the temperature rise test synoptic diagram of the low-heat composite gelled material of cement pit;
Among the figure: 6-cement pit; 7-iron sheet barrel; 8-do husky; 9-slurry; 10-TP.
As shown in the figure: as to tamp with 8 between putting into 6,7 and 6 with 7, be fixed on 7 central position with 10, then the composite gelled material slurry 9 behind the mix is packed in 7, after filling, is connected with the recording instrument without paper of energising, to show and to write down temperature data with 10.
Embodiment
The present invention is further described according to embodiment.
The compound preparation of gelling material: get 45 parts of 32.5 grades of Portland blasts, 40 parts of I level flyash, 15 parts of metakaolins, 1 part of SODIUM SULPHATE ANHYDROUS 99PCT with parts by weight; Place mixer successively; Under normal temperature, the normal pressure; Stirred 15 minutes with 120 rev/mins speed, mix, promptly get gelling material;
Use moulding: get 97 parts of above-mentioned gelling material, 3 parts of swelling agents, 1 part of water reducer with parts by weight; In 20 seconds, join successively in the agitator kettle of the cement paste stirrer that is contained with 30 parts of tap water; Speed and program by national building material industry standard JC/T 729-2005 regulation are carried out mix: with the speed of 140 ± 5 rev/mins of rotations and 62 ± 5 rev/mins of revolution; Stirred at a slow speed 120 ± 3 seconds; Stopped mixing 15 ± 1 seconds, and, stirred fast 120 ± 3 seconds again with the speed of 285 ± 10 rev/mins of rotations and 125 ± 10 rev/mins of revolution.The slurries that obtain, according to standard GB/T 8077-2000, GB/T 17671-1999 and GB/T 12959-2008 test, starching degree of mobilization only is 270mm; 3d ultimate compression strength is 17.8MPa; 7d ultimate compression strength is 28.7MPa, and 28d ultimate compression strength is 46.1MPa, and the 3d hydration heat is 149kJkg
-1, 7d hydration heat 164kJkg
-1According to the test of the method shown in the accompanying drawing 1 temperature rise, its slurry center temperature rise is 56.7 ℃.
The compound preparation of gelling material: get 30 parts of 32.5R composite Portland cements, 50 parts of II level flyash, 20 parts of metakaolins with parts by weight; Place mixer successively, under normal temperature, the normal pressure, stirred 10 minutes with 100 rev/mins speed; Mix, promptly get gelling material;
Use moulding: get 94 parts of above-mentioned gelling material, 6 parts of swelling agents, 1 part of water reducer with parts by weight; In 30 seconds, join successively in the agitator kettle of the cement paste stirrer that is contained with 30 parts of tap water; Speed and program by national building material industry standard JC/T 729-2005 regulation are carried out mix: with the speed of 140 ± 5 rev/mins of rotations and 62 ± 5 rev/mins of revolution; Stirred at a slow speed 120 ± 3 seconds; Stopped mixing 15 ± 1 seconds, and, stirred fast 120 ± 3 seconds again with the speed of 285 ± 10 rev/mins of rotations and 125 ± 10 rev/mins of revolution.The slurries that obtain, according to standard GB/T 8077-2000, GB/T 17671-1999 and GB/T 12959-2008 test, starching degree of mobilization only is 245mm; 3d ultimate compression strength is 12.1MPa; 7d ultimate compression strength is 20.5MPa, and 28d ultimate compression strength is 35.5MPa, and the 3d hydration heat is 140kJkg
-1, 7d hydration heat 158kJkg
-1According to the test of the method shown in the accompanying drawing 1 temperature rise, the temperature rise of slurry center is 54.5 ℃.Use the said ratio raw material instead 100L single horizontal shaft type forced stirrer and stir, adopt the method test temperature rise shown in the accompanying drawing 2, the temperature rise of slurry center is 58.7 ℃.
The compound preparation of gelling material: get 30 parts of moderate-heat portland cements, 60, part I level flyash, 10 parts of metakaolins, 5 parts of calcium hydroxides, 2 parts of SODIUM SULPHATE ANHYDROUS 99PCTs with parts by weight; Place mixer successively; Under normal temperature, the normal pressure; Stirred 12 minutes with 85 rev/mins speed, mix, promptly get gelling material;
Use moulding: get 90 parts of above-mentioned gelling material, 10 parts of swelling agents, 1.2 parts of water reducers with parts by weight; In 25 seconds, join successively in the agitator kettle of the cement paste stirrer that is contained with 28 parts of tap water; Speed and program by national building material industry standard JC/T 729-2005 regulation are carried out mix: with the speed of 140 ± 5 rev/mins of rotations and 62 ± 5 rev/mins of revolution; Stirred at a slow speed 120 ± 3 seconds; Stopped mixing 15 ± 1 seconds, and, stirred fast 120 ± 3 seconds again with the speed of 285 ± 10 rev/mins of rotations and 125 ± 10 rev/mins of revolution.The slurries that obtain, according to standard GB/T 8077-2000, GB/T 17671-1999 and GB/T 12959-2008 test, starching degree of mobilization only is 225mm; 3d ultimate compression strength is 10.2MPa; 7d ultimate compression strength is 19.5MPa, and 28d ultimate compression strength is 38.4MPa, and the 3d hydration heat is 129kJkg
-1, 7d hydration heat 147kJkg
-1According to the test of the method shown in the accompanying drawing 1 temperature rise, the temperature rise of slurry center is 43.2 ℃.
The compound preparation of gelling material: get 40 parts of low-heat portland cements, 40 parts of II level flyash, 20 parts of metakaolins with parts by weight, place mixer successively, under normal temperature, the normal pressure, stirred 9 minutes, mix, promptly get gelling material with 90 rev/mins speed;
Use moulding: get 97 parts of above-mentioned gelling material, 3 parts of swelling agents, 1 part of water reducer with parts by weight; In 17 seconds, join successively in the agitator kettle of the cement paste stirrer that is contained with 24 parts of tap water; Speed and program by national building material industry standard JC/T 729-2005 regulation are carried out mix: with the speed of 140 ± 5 rev/mins of rotations and 62 ± 5 rev/mins of revolution; Stirred at a slow speed 120 ± 3 seconds; Stopped mixing 15 ± 1 seconds, and, stirred fast 120 ± 3 seconds again with the speed of 285 ± 10 rev/mins of rotations and 125 ± 10 rev/mins of revolution.The slurries that obtain, according to standard GB/T 8077-2000, GB/T 17671-1999 and GB/T 12959-2008 test, starching degree of mobilization only is 240mm; 3d ultimate compression strength is 15.6MPa; 7d ultimate compression strength is 35.4MPa, and 28d ultimate compression strength is 52.3MPa, and the 3d hydration heat is 136kJkg
-1, the 7d hydration heat is 152kJkg
-1According to the test of the method shown in the accompanying drawing 1 temperature rise, the temperature rise of slurry center is 51.3 ℃.
The compound preparation of gelling material: get 25 parts of low-heat portland cements, 60 parts of I level flyash, 15 parts of metakaolins with parts by weight; Place mixer successively, under normal temperature, the normal pressure, stirred 12 minutes with 95 rev/mins speed; Mix, promptly get gelling material;
Use moulding: get 97 parts of above-mentioned gelling material, 3 parts of swelling agents, 1 part of water reducer with parts by weight; In 10 seconds, join successively in the agitator kettle of the cement paste stirrer that is contained with 24 parts of tap water; Speed and program by national building material industry standard JC/T 729-2005 regulation are carried out mix: with the speed of 140 ± 5 rev/mins of rotations and 62 ± 5 rev/mins of revolution; Stirred at a slow speed 120 ± 3 seconds; Stopped mixing 15 ± 1 seconds, and, stirred fast 120 ± 3 seconds again with the speed of 285 ± 10 rev/mins of rotations and 125 ± 10 rev/mins of revolution.The slurries that obtain, according to standard GB/T 8077-2000, GB/T 17671-1999 and GB/T 12959-2008 test, starching degree of mobilization only is 205mm; 3d ultimate compression strength is 11.5MPa; 7d ultimate compression strength is 16.9MPa, and 28d ultimate compression strength is 29.4MPa, and the 3d hydration heat is 99kJkg
-1, the 7d hydration heat is 153kJkg
-1, the 28d hydration heat is 166kJkg
-1According to the test of the method shown in the accompanying drawing 1 temperature rise, the temperature rise of slurry center is 37.5 ℃.Use the said ratio raw material instead 100L single horizontal shaft type forced stirrer and stir, adopt the method test temperature rise shown in the accompanying drawing 2, the temperature rise of slurry center is 36.2 ℃.
The compound preparation of gelling material: get 40 parts of lows, 40 parts of I level flyash, 20 parts of metakaolins with parts by weight; Place mixer successively, under normal temperature, the normal pressure, stirred 11 minutes with 85 rev/mins speed; Mix, promptly get gelling material;
Use moulding: get 97 parts of above-mentioned gelling material, 3 parts of swelling agents, 1.2 parts of water reducers with parts by weight; In 26 seconds, join successively in the agitator kettle of the cement paste stirrer that is contained with 30 parts of tap water; Speed and program by national building material industry standard JC/T 729-2005 regulation are carried out mix: with the speed of 140 ± 5 rev/mins of rotations and 62 ± 5 rev/mins of revolution; Stirred at a slow speed 120 ± 3 seconds; Stopped mixing 15 ± 1 seconds, and, stirred fast 120 ± 3 seconds again with the speed of 285 ± 10 rev/mins of rotations and 125 ± 10 rev/mins of revolution.The slurries that obtain, according to standard GB/T 8077-2000, GB/T 17671-1999 and GB/T 12959-2008 test, starching degree of mobilization only is 210mm; 3d ultimate compression strength is 16.4MPa; 7d ultimate compression strength is 24.8MPa, and 28 d ultimate compression strength are 29.8MPa, and the 3d hydration heat is 86kJkg
-1, the 7d hydration heat is 100kJkg
-1According to the test of the method shown in the accompanying drawing 1 temperature rise, the temperature rise of slurry center is 45.3 ℃.
Raw-material basic parameter is used in test:
Described material, the cement of selecting for use, 32.5 grades or 32.5R level Portland blast or composite Portland cement meet GB 175-2007; Moderate-heat portland cement, low-heat portland cement or low heat portland blast-furnace-slag cement meet GB 200-2003; Low meets GB 2938-2008.
Described material, the flyash of selecting for use meets I level or the II level of GB/T 1596-2005.
Described material, the metakaolin of use, through 600-850 ℃ of calcining, meta particle diameter D
50Less than 4 μ m, specific surface area is greater than 10000cm
2G
-1, SiO
2Massfraction is 45-55%, Al
2O
3Massfraction is 35-45%, and pozzolanic activity is determined as the 1g metakaolin with the Chapelle method and absorbs greater than 1000mgCa (OH)
2
Described material, the exciting agent of use, UEA-H type swelling agent, naphthalene water reducer or polycarboxylate dehydragent, metakaolin are the commercially available prod.
Claims (5)
1. low-heat composite gelled material is characterized in that: divide material prepn and applying step:
The preparation of gelling material:, form by 20-50 part cement, 40-70 part flyash, 5-25 part metakaolin, 0-8 part exciting agent with the material of parts by weight preparation; Through preparing: above-mentioned material agent is placed mixer successively, under normal temperature, normal pressure,, stirred 5-15 minute, get product with 60-120 rev/min speed;
Use moulding: with the material of parts by weight preparation; Form by 88-97 part gelling material, 3-12 part swelling agent, 1.0-1.5 part water reducer, 24-32 part tap water: through mix: above-mentioned material agent is placed the cement paste stirrer successively,, stirred at a slow speed 120 ± 3 seconds with the speed of 140 ± 5 rev/mins of rotations and 62 ± 5 rev/mins of revolution; Stopped mixing 15 ± 1 seconds; With the speed of 285 ± 10 rev/mins of rotations and 125 ± 10 rev/mins of revolution, stir end in 120 ± 3 seconds fast, i.e. mix moulding again;
Wherein exciting agent is made up of 0-5 part calcium hydroxide, 1-3 part SODIUM SULPHATE ANHYDROUS 99PCT, in the compound preparation process of gelling material, directly adds;
Wherein swelling agent is a UEA-H type swelling agent;
Wherein water reducer is naphthalene water reducer or polycarboxylate dehydragent.
2. material according to claim 1 is characterized in that: the cement of selecting for use, and 32.5 grades or 32.5R level Portland blast or composite Portland cement meet GB 175-2007; Moderate-heat portland cement, low-heat portland cement or low heat portland blast-furnace-slag cement meet GB 200-2003; Low meets GB 2938-2008.
3. material according to claim 1 is characterized in that: the flyash of selecting for use meets I level or the II level of GB/T 1596-2005.
4. material according to claim 1 is characterized in that: the metakaolin of use, and through 600-850 ℃ of calcining, meta particle diameter D
50Less than 4 μ m, specific surface area is greater than 10000cm
2G
-1, SiO
2Massfraction is 45-55%, Al
2O
3Massfraction is 35-45%, and pozzolanic activity is determined as the 1g metakaolin with the Chapelle method and absorbs greater than 1000mgCa (OH)
2
5. material according to claim 1 is characterized in that: the exciting agent of use, UEA-H type swelling agent, naphthalene water reducer or polycarboxylate dehydragent, metakaolin are the commercially available prod.
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| CN104108890A (en) * | 2014-07-22 | 2014-10-22 | 同济大学 | Marine cement doped with modified metakaolin |
| CN104193217A (en) * | 2014-08-15 | 2014-12-10 | 刘艳 | Low-porosity high-freezing-resistance gelatinizer and preparation method thereof |
| CN104803630A (en) * | 2014-01-26 | 2015-07-29 | 神华集团有限责任公司 | Geopolymer composition and geopolymer material |
| CN105314956A (en) * | 2015-10-15 | 2016-02-10 | 上海建工集团股份有限公司 | Geopolymer large-size concrete and preparation method thereof |
| CN105753406A (en) * | 2016-02-29 | 2016-07-13 | 同济大学 | Composite binding material doped with low-temperature burned clay and preparation method of composite binding material |
| CN108455885A (en) * | 2017-12-28 | 2018-08-28 | 主义 | A kind of composite Portland cement and the preparation method and application thereof |
| CN109987905A (en) * | 2017-12-29 | 2019-07-09 | 中国人民解放军63653部队 | Solidify the composite gelled material of the radioactive waste containing active metal |
| CN109987896A (en) * | 2017-12-31 | 2019-07-09 | 中国人民解放军63653部队 | The high-strength micro-expansion cement base grouting material of low-heat |
| CN110698103A (en) * | 2019-10-18 | 2020-01-17 | 甘肃润源环境资源科技有限公司 | Chemical excitant for preparing coal ash/slag geopolymer |
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| CN104803630A (en) * | 2014-01-26 | 2015-07-29 | 神华集团有限责任公司 | Geopolymer composition and geopolymer material |
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| CN105314956A (en) * | 2015-10-15 | 2016-02-10 | 上海建工集团股份有限公司 | Geopolymer large-size concrete and preparation method thereof |
| CN105753406A (en) * | 2016-02-29 | 2016-07-13 | 同济大学 | Composite binding material doped with low-temperature burned clay and preparation method of composite binding material |
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| CN109987905A (en) * | 2017-12-29 | 2019-07-09 | 中国人民解放军63653部队 | Solidify the composite gelled material of the radioactive waste containing active metal |
| CN109987905B (en) * | 2017-12-29 | 2021-11-09 | 中国人民解放军63653部队 | Composite gelled material for solidifying active metal-containing radioactive waste |
| CN109987896A (en) * | 2017-12-31 | 2019-07-09 | 中国人民解放军63653部队 | The high-strength micro-expansion cement base grouting material of low-heat |
| CN110698103A (en) * | 2019-10-18 | 2020-01-17 | 甘肃润源环境资源科技有限公司 | Chemical excitant for preparing coal ash/slag geopolymer |
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