CN101723607A - Alkali-slag cement composition and preparation process thereof - Google Patents
Alkali-slag cement composition and preparation process thereof Download PDFInfo
- Publication number
- CN101723607A CN101723607A CN200910232348A CN200910232348A CN101723607A CN 101723607 A CN101723607 A CN 101723607A CN 200910232348 A CN200910232348 A CN 200910232348A CN 200910232348 A CN200910232348 A CN 200910232348A CN 101723607 A CN101723607 A CN 101723607A
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- China
- Prior art keywords
- alkali
- slag
- slag cement
- cement component
- additive
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- 239000002893 slag Substances 0.000 title claims abstract description 72
- 239000004568 cement Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 4
- 239000000203 mixture Substances 0.000 title abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 22
- 239000000654 additive Substances 0.000 claims description 18
- 230000000996 additive effect Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 11
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 6
- 150000003751 zinc Chemical class 0.000 abstract description 4
- 239000003469 silicate cement Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 12
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 7
- 229960001763 zinc sulfate Drugs 0.000 description 7
- 229910000368 zinc sulfate Inorganic materials 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 229920002472 Starch Polymers 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 6
- 238000005345 coagulation Methods 0.000 description 6
- 235000019698 starch Nutrition 0.000 description 6
- 239000008107 starch Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 239000012190 activator Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- QLOKJRIVRGCVIM-UHFFFAOYSA-N 1-[(4-methylsulfanylphenyl)methyl]piperazine Chemical compound C1=CC(SC)=CC=C1CN1CCNCC1 QLOKJRIVRGCVIM-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 208000036142 Viral infection Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 229910001864 baryta Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical group [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to an alkali-slag cement composition and its preparation process, and is characterized by that it adopts one or several inorganic zinc salt substances with proper fineness, and adds them into the basic composition of alkali-slag cement so as to effectively delay the setting time of alkali-slag cement and make it meet the requirements for cement setting time defined in silicate cement national standard GB 175-1999. The alkali-slag cement composition has the advantages of adjustable setting time, no reduction of cement strength, low cost, convenient use, no toxicity to human bodies, no harm to the environment and the like.
Description
Technical field
The present invention relates to a kind of alkali-slag cement component and blending process thereof, relate in particular to the design and the blending process thereof of a kind of time of coagulation of regulatable alkali-slag cement component, belong to building material technical field.
Background technology
Alkali-slag cement is by the formulated hydraulic cementing materials of suitable proportion by levigate granulated blast-furnace slag and alkali-activator; have a series of high-performances that surpass traditional portland such as early strong, high-strength, heat-resisting, corrosion-resistant, be a kind of excellent property, economizing can the production-goods source, the environmentally friendly novel building gelling material with huge potential use prospect.Compare with traditional portland, alkali-slag cement is main raw material with the industrial residue, production process is simple, only need a grinding, do not need high-temperature calcination, changed the production technique of silicate cement " two mills one burn ", energy consumption also only needs ordinary Portland cement 1/2～1/3, avoid the consumption of Nonrenewable resources such as clay, Wingdale, reduced greenhouse gases CO
2And other discharge of harmful gases.Under international background that current global climate deterioration problem is on the rise and the Domestic Environment of advocating energy-saving and emission-reduction energetically, alkali-slag cement especially demonstrates it to the complementary of traditional portland industry Sustainable development with to the positive effect of environment protection.
Liquid soluble glass is proved to be a kind of exciting agent best to the slag stimulation effect, and obtains extensive concern.But, adopt liquid soluble glass to have the too fast problem of cement setting as alkali-activator, general initial set and final setting time are respectively 20-30min and 30-40min, bring inconvenience for the construction links such as stirring, cast of concrete mix, become it and move towards one of obstacle that engineering uses on a large scale.How to solve alkali-slag cement and coagulate problem soon, become the hot technology of a global extensive concern.
Add an amount of chemical substance in alkali-slag cement, promptly to delay its rate of set be a kind of fairly simple feasible technological approaches to retardant.But used retardant is left over problems at present, is not to have a negative impact to hardening of cement body intensity, is exactly that cost is too high, and is perhaps harmful to human body or environment.The disclosed alkali-slag cement retardant of patent CN91108316.2 is formulated by nitrate of baryta and Portland clinker.At first, barium salt is a kind of to the virose chemical reagent of human body; Secondly, the use of this retardant obviously reduces the concrete early strength of alkali-slag cement, and the volumetric shrinkage in later stage can influence concrete work-ing life again; Agents useful for same is composited by potassiumchromate, white sugar, phenol in patent 01113916.1 disclosed alkali-slag concrete retarding and fluidizing agent, and reagent type is more, and proportioning control is harsh, the blending process complexity, and also chromium is heavy metal, harmful to human body and environment; The retardant that adopts in the sharp cement that gives up of the disclosed early strengthening and high strengthening of patent 02134700.X is a Potassium monofluoride, will have a negative impact to biological and environment after fluorion immerses in the underground water.
Summary of the invention
The objective of the invention is for improve existing alkali-slag cement condense too fast, cement slurry intensity is had a negative impact after adding retardant, cost is too high, wait not enough and a kind of time of coagulation of the adjustable alkali-slag cement component of proposition to human body or environment are harmful, the blending process of this alkali-slag cement component is provided simultaneously.
Technical scheme of the present invention is:
A kind of alkali-slag cement component is characterized in that at the basic title complex of alkali-slag cement be on the basis of exciting agent and slag powders, adds to account for the inorganic additives that the slag powders quality is 0.5-5% again, and wherein additive is at least Zn (NO
3)
2, ZnSO
4Or ZnCl
2In a kind of.
Preferred described additive fineness is that 80 μ m tail over 1-8%.Preferred described exciting agent is the liquid soluble glass of modulus between 1.2-1.5; The volume of exciting agent is with Na
2The O metering is the 3-8% of slag powders quality.Preferred described slag powders fineness is that 45 μ m tail over 1-6%, Blain specific surface 440-480m
2/ kg.
The present invention also provides the blending process of above-mentioned alkali-slag cement component, and its concrete steps are as follows: earlier with the additive pulverize, be dissolved in water, be mixed with the aqueous solution; With the slag pulverize, add the additive aqueous solution of above-mentioned preparation then; Add exciting agent again, stir, obtain alkali-slag cement component;
Or earlier additive and slag are mixed in proportion levigately, and and then add exciting agent and water, stir, obtain indication alkali-slag cement component of the present invention.
It is between the 0.26-0.28 that the add-on of water in the said process (add-on of water comprises the summation of water content in the raw materials such as the water that adds and exciting agent) is controlled water-solid ratio routinely.
Beneficial effect:
The present invention adopts one or more zinc salt materials to make an addition in right amount can to regulate and control effectively in the basic title complex of alkali-slag cement its slurry time of coagulation, and cement performance is not had negative impact, and human body and environment are not had toxic action.The performance characteristics of this alkali-slag cement component is: time of coagulation, scope was adjustable significantly, in the inorganic zinc salt material accounts for the 0.5-5% scope of slag powders quality, pass through resize ratio, can adjust arbitrarily between 1-6 hour the time of coagulation of alkali-slag cement, the flowability of cement slurry is normal, and very little, even certain promoter action is arranged to intensity negative impacts in 3 days, 7 days, 28 days of alkali-slag cement.
In addition, it is simple, with low cost that this alkali-slag cement component also has a blending process, is easy to large-scale application, stable performance, but prolonged storage, transportation and advantage such as easy to use.
Embodiment
Below be benchmark with 100 parts of (quality) slag powders, (wherein zinc nitrate is Zn (NO with regard to different sorts inorganic zinc salt material
3)
26H
2O, zinc sulfate are ZnSO
47H
2O) and the variation of addition to the regulating effect and the influence of cement paste ultimate compression strength time of coagulation of indication alkali-slag cement component of the present invention, divide embodiment to be described as follows:
Embodiment 1
2.5 parts of zinc nitrates are dissolved in 15.1 parts of water are made into the aqueous solution, again 100 parts of slag powders are added wherein, add 26 parts of exciting agents then (with Na
25.71 parts of O meters), stir.
Additive therefor zinc nitrate fineness is that 80 μ m tail over 6.1%; The slag powders fineness is that 45 μ m tail over 3.5%, Blain specific surface 465m
2/ kg; Exciting agent is that modulus is 1.2 liquid soluble glass, wherein Na
2O and SiO
2The mass percent concentration sum is 47.51%.
The presetting period of this alkali-slag cement component and final setting time are respectively 89min and 115min, and 3d, 7d and 28d starch ultimate compression strength only and be respectively 88.5MPa, 103.8MPa and 126.1MPa; Benchmark sample presetting period and final setting time are respectively 30min and 39min, and 3d, 7d and 28d intensity are respectively 84.7MPa, 101.5MPa and 118.4MPa.
Embodiment 2
2.0 parts of zinc sulfate are dissolved in 13.5 parts of water are made into the aqueous solution, again 100 parts of slag powders are added wherein, add 28 parts of exciting agents then (with Na
25.20 parts of O meters), stir.
Additive therefor zinc sulfate fineness is that 80 μ m tail over 3.8%; The slag powders fineness is that 45 μ m tail over 1.2%, Blain specific surface 475m
2/ kg; Exciting agent is that modulus is 1.5 liquid soluble glass, wherein Na
2O and SiO
2The mass percent concentration sum is 45.68%.
The presetting period of this alkali-slag cement component and final setting time are respectively 286min and 335min, 3d, 7d and 28d starch ultimate compression strength only and are respectively 81.4MPa, 100.3MPa and 120.5MPa, benchmark sample presetting period and final setting time are respectively 35min and 47min, 3d, 7d and 28d intensity are respectively 80.2MPa, 98.4MPa and 116.6MPa.
Embodiment 3
4.5 parts of zinc chloride are dissolved in 20 parts of water are made into the aqueous solution, again 100 parts of slag powders are added wherein, add 18 parts of exciting agents then (with Na
23.95 parts of O meters), stir.
Additive therefor zinc chloride fineness is that 80 μ m tail over 6.1%; The slag powders fineness is that 45 μ m tail over 5.5%, Blain specific surface 440m
2/ kg; Exciting agent is that modulus is 1.2 liquid soluble glass, wherein Na
2O and SiO
2The mass percent concentration sum is 47.51%.
The presetting period of this alkali-slag cement component and final setting time are respectively 275min and 310min, 3d, 7d and 28d starch ultimate compression strength only and are respectively 80.3MPa, 98.6MPa and 116.4MPa, benchmark sample presetting period and final setting time are respectively 33min and 45min, 3d, 7d and 28d intensity are respectively 81.2MPa, 98.5MPa and 115.8MPa.
Embodiment 4
2.0 parts of compound retarders are dissolved in 16.7 parts of water are made into the aqueous solution, compound retarder comprises 1 part of zinc nitrate and 1 part of zinc sulfate.Again 100 parts of slag powders are added wherein, add 22 parts of exciting agents then (with Na
24.82 parts of O meters), stir.
Additive therefor zinc nitrate fineness is that 80 μ m tail over 7.2%, and the zinc sulfate fineness is that 80 μ m tail over 5.8%; The slag powders fineness is that 45 μ m tail over 3.5%, Blain specific surface 465m
2/ kg; Exciting agent is that modulus is 1.2 liquid soluble glass, wherein Na
2O and SiO
2The mass percent concentration sum is 47.51%.
The presetting period of this alkali-slag cement component and final setting time are respectively 196min and 233min, and 3d, 7d and 28d starch ultimate compression strength only and be respectively 82.3MPa, 98.4MPa and 117.3MPa; Benchmark sample presetting period and final setting time are respectively 32min and 41min, and 3d, 7d and 28d intensity are respectively 82.5MPa, 99.4MPa and 116.5MPa.
Embodiment 5
1.5 parts of zinc nitrates are dissolved in 17.5 parts of water are made into the aqueous solution, again 100 parts of slag powders are added wherein, add 20 then (with Na
24.15 parts of O meters) part exciting agent stirs.
Additive therefor zinc nitrate fineness is that 80 μ m tail over 6.1%; The slag powders fineness is that 45 μ m tail over 3.5%, Blain specific surface 465m
2/ kg; Exciting agent is that modulus is 1.3 liquid soluble glass, wherein Na
2O and SiO
2The mass percent concentration sum is 46.85%.
The presetting period of this alkali-slag cement component and final setting time are respectively 118min and 163min, and 3d, 7d and 28d starch ultimate compression strength only and be respectively 83.0MPa, 99.2MPa and 116.1MPa; Benchmark sample presetting period and final setting time are respectively 33min and 46min, and 3d, 7d and 28d intensity are respectively 83.4MPa, 100.3MPa and 117.2MPa.
Embodiment 6
3.0 parts of zinc sulfate are dissolved in 13.9 parts of water are made into the aqueous solution, again 100 parts of slag powders are added wherein, add 27 parts of exciting agents then (with Na
25.30 parts of O meters), stir.
Additive therefor zinc sulfate fineness is that 80 μ m tail over 3.8%; The slag powders fineness is that 45 μ m tail over 1.2%, Blain specific surface 475m
2/ kg; Exciting agent is that modulus is 1.4 liquid soluble glass, wherein Na
2O and SiO
2The mass percent concentration sum is 46.25%.
The presetting period of this alkali-slag cement component and final setting time are respectively 135min and 176min, 3d, 7d and 28d starch ultimate compression strength only and are respectively 82.6MPa, 101.5MPa and 119.0MPa, benchmark sample presetting period and final setting time are respectively 33min and 35min, 3d, 7d and 28d intensity are respectively 82.3MPa, 99.5MPa and 116.2MPa.
Claims (5)
1. an alkali-slag cement component is characterized in that at the basic title complex of alkali-slag cement be on the basis of exciting agent and slag powders, adds to account for the inorganic additives that the slag powders quality is 0.5-5% again, and wherein additive is at least Zn (NO
3)
2, ZnSO
4Or ZnCl
2In a kind of.
2. according to right 1 described alkali-slag cement component, it is characterized in that described additive fineness is that 80 μ m tail over 1-8%.
3. alkali-slag cement component according to claim 1 is characterized in that described exciting agent is the liquid soluble glass of modulus between 1.2-1.5; The volume of exciting agent is with Na
2The O metering is the 3-8% of slag powders quality.
4. alkali-slag cement component according to claim 1 is characterized in that described slag powders fineness is that 45 μ m tail over 1-6%, Blain specific surface 440-480m
2/ kg.
5. the blending process of an alkali-slag cement component as claimed in claim 1, its concrete steps are as follows: earlier with the additive pulverize, be dissolved in water, be mixed with the aqueous solution; With the slag pulverize, add the additive aqueous solution of above-mentioned preparation then; Add exciting agent again, stir, obtain alkali-slag cement component; Or earlier additive and slag are mixed in proportion levigately, and and then add exciting agent and water, stir, obtain indication alkali-slag cement component of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910232348A CN101723607A (en) | 2009-12-08 | 2009-12-08 | Alkali-slag cement composition and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910232348A CN101723607A (en) | 2009-12-08 | 2009-12-08 | Alkali-slag cement composition and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101723607A true CN101723607A (en) | 2010-06-09 |
Family
ID=42445255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910232348A Pending CN101723607A (en) | 2009-12-08 | 2009-12-08 | Alkali-slag cement composition and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101723607A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395134A (en) * | 2018-03-29 | 2018-08-14 | 重庆大学 | High efficiency water reducing agent composition and its application method for alkali slag cement |
| CN108623225A (en) * | 2018-04-13 | 2018-10-09 | 东南大学 | A kind of alkali-activated slag based cementitious material and preparation method thereof of green slow setting |
| CN110744882A (en) * | 2019-09-30 | 2020-02-04 | 曾小燕 | Preparation method of asphalt-based waterproof coiled material |
| JP2021506708A (en) * | 2017-12-15 | 2021-02-22 | ザ カトリック ユニバーシティ オブ アメリカ | Controlling cure time of geopolymer compositions containing highly CA-reactive aluminosilicate materials |
| CN113429134A (en) * | 2021-07-21 | 2021-09-24 | 西安建筑科技大学 | Method for adjusting fluidity and setting time of chemically-activated cementing material system |
-
2009
- 2009-12-08 CN CN200910232348A patent/CN101723607A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021506708A (en) * | 2017-12-15 | 2021-02-22 | ザ カトリック ユニバーシティ オブ アメリカ | Controlling cure time of geopolymer compositions containing highly CA-reactive aluminosilicate materials |
| JP7296135B2 (en) | 2017-12-15 | 2023-06-22 | ザ カトリック ユニバーシティ オブ アメリカ | Controlling curing time of geopolymer compositions containing high CA reactive aluminosilicate materials |
| CN108395134A (en) * | 2018-03-29 | 2018-08-14 | 重庆大学 | High efficiency water reducing agent composition and its application method for alkali slag cement |
| CN108395134B (en) * | 2018-03-29 | 2020-11-06 | 重庆大学 | High-efficiency water reducing agent composition for alkali slag cement and use method thereof |
| CN108623225A (en) * | 2018-04-13 | 2018-10-09 | 东南大学 | A kind of alkali-activated slag based cementitious material and preparation method thereof of green slow setting |
| CN110744882A (en) * | 2019-09-30 | 2020-02-04 | 曾小燕 | Preparation method of asphalt-based waterproof coiled material |
| CN113429134A (en) * | 2021-07-21 | 2021-09-24 | 西安建筑科技大学 | Method for adjusting fluidity and setting time of chemically-activated cementing material system |
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Application publication date: 20100609 |