CN1003512B - High-strength water-reducing quick-setting agent - Google Patents
High-strength water-reducing quick-setting agent Download PDFInfo
- Publication number
- CN1003512B CN1003512B CN85104033.0A CN85104033A CN1003512B CN 1003512 B CN1003512 B CN 1003512B CN 85104033 A CN85104033 A CN 85104033A CN 1003512 B CN1003512 B CN 1003512B
- Authority
- CN
- China
- Prior art keywords
- concrete
- cement
- water
- strength
- water reducer
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000004567 concrete Substances 0.000 claims abstract description 17
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910001388 sodium aluminate Inorganic materials 0.000 claims abstract description 11
- 229940037003 alum Drugs 0.000 claims abstract description 10
- 235000012054 meals Nutrition 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000005507 spraying Methods 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 20
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000003467 diminishing effect Effects 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 235000017550 sodium carbonate Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 230000002110 toxicologic effect Effects 0.000 description 2
- 231100000027 toxicology Toxicity 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- RRDQTXGFURAKDI-UHFFFAOYSA-N formaldehyde;naphthalene-2-sulfonic acid Chemical group O=C.C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 RRDQTXGFURAKDI-UHFFFAOYSA-N 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- HIEHAIZHJZLEPQ-UHFFFAOYSA-M sodium;naphthalene-1-sulfonate Chemical class [Na+].C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 HIEHAIZHJZLEPQ-UHFFFAOYSA-M 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
High-strength water-reducing quick-setting agent. It is related to spraying concrete and cement or concrete additive in underground engineering. The present invention provides an accelerating agent for concrete spraying of underground engineering or for cement and concrete, and is characterized by that it possesses the water-reducing function and high strength. Has low corrosiveness to human bodies. The alkali consumption in production is low. The water reducer is prepared by mixing powdery alum sludge, industrial sodium aluminate and domestic FIN or NF type water reducer according to the proportion (weight ratio) of 300: 10-60: 5-40. The mixing amount is about 4 percent of the weight of the cement, and the problems of low strength, high corrosivity, high alkali consumption in production and the like of the conventional accelerator are solved.
Description
The present invention relates to a kind of sprayed concrete of substructure work and ground concrete admixture.
In sprayed concrete of substructure work and some ground concrete engineering construction, usually use accelerating chemicals concretely to condense and improves early strength accelerating, reduce resilience and slump, thereby the shortening construction period is obtained technical economic benefit preferably.
Domestic accelerating chemicals commonly used has Red Star-type, 711 types and Ministry of Coal Industry's type etc. at present.External quite well-known product has: western ancient nit (Sigunit) and west card (SIKA).These accelerating chemicalss are main raw material with aluminum oxide clinker (industrial sodium aluminate) and soda ash all.They have not only brought serious corrosion injury to workmen's eyes and skin, and make concrete later strength lose 20～40%, have had a strong impact on the supporting quality of underground works; Though they have the rapid hardening effect to concrete, also can improve early strength, their no diminishing functions, and often to increase the construction water requirement, this certainly will increase water cement ratio, and concrete intensity is brought adverse influence.
Mix water reducer in accelerating chemicals, often meet some difficulties, because general water reducer all more or less has delayed coagulation, can influence the rapid hardening effect of accelerating chemicals, perhaps introducing air is more, influences concrete density, impermeability and intensity.
Purpose of the present invention, it is lower to be to seek a kind of construction water requirement, and the high rapid dewatering accelerant for concrete of intensity.
Accelerating chemicals of the present invention is a quick-set with the industrial waste waste material of alum (produce) and industrial sodium aluminate, with homemade FDN(or NF) the type water reducer is the diminishing material.The alum mud wherein and the chemical ingredients of industrial sodium aluminate are as shown in table 1; And the composition of water reducer is beta-naphthalenesulfonic-acid formaldehyde condensation compound or the many sodium naphthalene sulfonates of methylene radical, is open commercially available prod.
The manufacture craft of this accelerating chemicals is as follows:
(1) with alum mud dry under 150～200 ℃ be less than 2% to water content after, be milled to complete
Cross 80 mesh sieves or thinner.
(2) with bauxite, Wingdale, coal and soda ash pulverizing and jevigating, mix the back balling-up by saturated proportioning, 1150 ℃ of following roastings, be milled to cement fineness behind the kiln discharge, be industrial sodium aluminate (claiming aluminum oxide clinker again).
(3) powder shape water reducer is milled to cement fineness or thinner.
(4) press alum mud: industrial sodium aluminate: prescription water reducer=100: 10～60: 5～40(weight ratio), above-mentioned powder is mixed, be high strength rapid dewatering accelerant for concrete.Its best proportioning (weight ratio) is alum mud: industrial sodium aluminate: water reducer=2: 1: 0.2.
Effect of the present invention is as follows:
(1) the construction water requirement is low.Present domestic do not work out as yet " the cement normal consistency test method that is mixed with accelerating chemicals ".Current domestic 0.4 the water cement ratio all used is as the water consumption of differentiating accelerating chemicals rapid hardening effect and intensity index.With Xiangxiang Portland cement is example, uses that Hunan 0-1 type accelerating chemicals volume is 3%, during water cement ratio 0.4, and it is 37 millimeters that the cone that records with China's cement new-standard consistometer sinks to the degree of depth; And use that high strength rapid dewatering accelerant for concrete volume of the present invention is 3%, during water cement ratio 0.33, can reach 37 millimeters the degree of depth that sinks to equally, showing that its water cement ratio is lower than Hunan 0-1 type, the diminishing amount is 15～18%.
(2) rapid hardening is effective, and volume is few.Under the situation of volume about 4%, cement was condensed in several minutes, as shown in table 2.
Table 2
Accelerating chemicals volume initial set final set of the present invention
3% 2′40″ 4′15″
4% 1′20″ 2′21″
(3) strength property is good.As everyone knows, the concrete construction water requirement is low, then the intensity height.Table 3 test-results shows: 1. compare with the blank test block of not mixing accelerating chemicals, the one day intensity of cement stone of mixing accelerating chemicals of the present invention is high by 179%, intensity was high by 78% in three days, 2. intensity high 19% compared with present Hunan 0-1 type (belonging to Red Star one type) accelerating chemicals in 28 days, intensity was high by 17% in one day, three days high 50%, 28 day high by 97%.
Table 3 cement strength test-results
(4) humble to human body toxicological harmless and corrodibility.In the accelerating chemicals of the present invention, contained material is to toxicological harmless per capita; And alum mud wherein, pH value is 5, it can reduce or in and the pH value of sodium aluminate composition in the accelerating chemicals, water reducer FDN wherein, PH=7～9 are neutrality or weakly alkaline; Sodium aluminate wherein is the unique alkaline matter in the accelerating chemicals of the present invention, only accounts for 1/3rd (present accelerating chemicalss such as Red Star one type almost are alkaloids entirely) of gross weight.
(5) production consumption alkali is few, produces one ton of accelerating chemicals of the present invention, only consumes about 160 kilograms of soda ash, only is 1/4～1/2 of Red Star one type accelerating chemicals.
(6) good economical benefit.Use accelerating chemicals of the present invention, can reduce cement consumption and resilience, therefore, good economical benefit.
Claims (3)
1, high strength rapid dewatering accelerant for concrete is characterized in that being mixed by the levigate meal of alum mud, industrial sodium aluminate and water reducer, and its prescription is
Alum mud: industrial sodium aluminate: water reducer=100: 10～60: 5～40
2, by the described high strength rapid dewatering accelerant for concrete of claim (1), it is characterized in that the alum mud of one of quick-set is 150～200 ℃ of oven dry, used water reducer is FDN or NF etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104033.0A CN1003512B (en) | 1985-05-21 | 1985-05-21 | High-strength water-reducing quick-setting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104033.0A CN1003512B (en) | 1985-05-21 | 1985-05-21 | High-strength water-reducing quick-setting agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85104033A CN85104033A (en) | 1986-11-19 |
| CN1003512B true CN1003512B (en) | 1989-03-08 |
Family
ID=4793592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85104033.0A Expired CN1003512B (en) | 1985-05-21 | 1985-05-21 | High-strength water-reducing quick-setting agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003512B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119015A (en) * | 2014-06-25 | 2014-10-29 | 芜湖市三兴混凝土外加剂有限公司 | High-efficiency setting accelerator |
| CN106316183B (en) * | 2015-06-18 | 2018-10-26 | 石家庄铁道大学 | A kind of additive and its application method being used to prepare powder polycarboxylic acids water reducing agent |
| CN110511045B (en) * | 2019-08-09 | 2022-06-24 | 苏州盛曼特新材料有限公司 | Coagulation-promoting type composite efficient dispersant for refractory castable and preparation method thereof |
-
1985
- 1985-05-21 CN CN85104033.0A patent/CN1003512B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85104033A (en) | 1986-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tüfekçi et al. | Evaluation of steel furnace slags as cement additives | |
| Tan et al. | Utilization of lithium slag as an admixture in blended cements: Physico-mechanical and hydration characteristics | |
| Erdogan et al. | Partly-refined chemical by-product gypsums as cement additives | |
| Mehta et al. | Utilization of phosphogypsum in Portland cement industry | |
| Kryvenko et al. | Utilization of industrial waste water treatment residues in alkali activated cement and concretes | |
| Al Hwaiti | Influence of treated waste phosphogypsum materials on the properties of ordinary portland cement | |
| CN110028259B (en) | Neutral steel slag activated cementing material and preparation method and application thereof | |
| Szarek et al. | Properties of fly ash from thermal treatment of municipal sewage sludge in terms of EN 450-1 | |
| CN114249549A (en) | Method for producing early strength cement by using lithium slag | |
| CN86103649B (en) | Composition of alite calcium sulphoaluminate cement and its production method | |
| CN1003512B (en) | High-strength water-reducing quick-setting agent | |
| CN110255943B (en) | Wet-grinding barium slag admixture and preparation method and application thereof | |
| Malhotra et al. | Blended cements in North America—a review | |
| Dabai et al. | Studies on the effect of rice straw ash as admixture of ordinary portland cement mortar | |
| CN106431065A (en) | Fly ash modification agent and modified low-quality fly ash active mixing material thereof | |
| US4119467A (en) | Cement and process for producing same | |
| CN109081626A (en) | A kind of concrete admixture, preparation method, application method and application | |
| CN101717219B (en) | Volume stabilizer of free calcium oxide as well as preparation and application thereof | |
| CN112573853A (en) | Titanium gypsum-based full-solid waste cementing material excitant and preparation method thereof | |
| Hanna et al. | Evaluation of the activity of pozzolanic materials | |
| Khamatova et al. | Effect of hardening accelerators and other chemical admixtures on the properties of a quick-setting mixture | |
| Odler et al. | Effect of mineralizers on the burning of portland cement clinker: I, Kinetics of the process | |
| SU1409605A1 (en) | Method of producing cement and sulfuric acid | |
| CN115073032B (en) | Method for preparing cementing material composition, cementing material and application thereof | |
| CN110790525A (en) | Carbide slag cement containing coal gangue 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 | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |