CN1044466C - Cellulose sulfuric acid ester type concrete additive - Google Patents
Cellulose sulfuric acid ester type concrete additive Download PDFInfo
- Publication number
- CN1044466C CN1044466C CN95104886A CN95104886A CN1044466C CN 1044466 C CN1044466 C CN 1044466C CN 95104886 A CN95104886 A CN 95104886A CN 95104886 A CN95104886 A CN 95104886A CN 1044466 C CN1044466 C CN 1044466C
- Authority
- CN
- China
- Prior art keywords
- sulfuric acid
- acid ester
- cement
- cellulose sulfuric
- concrete
- 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 - Fee Related
Links
- 229920002678 cellulose Polymers 0.000 title claims abstract description 19
- 239000001913 cellulose Substances 0.000 title claims abstract description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims description 18
- -1 sulfuric acid ester Chemical class 0.000 title claims description 17
- 239000000654 additive Substances 0.000 title abstract description 6
- 230000000996 additive effect Effects 0.000 title abstract description 5
- 239000004568 cement Substances 0.000 claims abstract description 44
- 239000011734 sodium Substances 0.000 claims description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000007859 condensation product Substances 0.000 claims description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 6
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000006467 substitution reaction Methods 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 12
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000011833 salt mixture Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 159000000013 aluminium salts Chemical class 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 229940074869 marquis Drugs 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- VBUNOIXRZNJNAD-UHFFFAOYSA-N ponazuril Chemical compound CC1=CC(N2C(N(C)C(=O)NC2=O)=O)=CC=C1OC1=CC=C(S(=O)(=O)C(F)(F)F)C=C1 VBUNOIXRZNJNAD-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/161—Macromolecular compounds comprising sulfonate or sulfate groups
- C04B24/168—Polysaccharide derivatives, e.g. starch sulfate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a concrete additive. In order to improve the performance of cement concrete to satisfy the specific requirements of different projects to the cement concrete, various additives are usually added to the cement concrete. The present invention provides a novel concrete additive containing cellulose sulfate, which has good application performance to the cement concrete and can greatly improve the flowability, the mechanical strength and the other performance of the cement concrete.
Description
The present invention relates to a kind of new concrete admixture.
In concrete, mix admixture, can improve concrete mechanical strength and improve other performance, make concrete can satisfy of the particular requirement of different engineerings, solve the difficult problem of construction work it.Therefore develop the admixture of excellent performance, become the research topic of domestic and international hot topic.
The concrete admixture that the purpose of this invention is to provide a kind of cellulose sulfuric acid ester type.
Concrete admixture provided by the present invention, wherein the cellulose sulfuric acid ester substitution value is: 0.1-2.0, viscosity: 1.4-500mPa.s (3% aqueous solution, 25 ℃) has three kinds of prescription patterns:
(1) cellulose sulfuric acid ester:
R is H or SO
3Na
(2) the metallic salt mixture of cellulose sulfuric acid ester and naphthalene sulfonic acidformaldehyde condensation product, metallic salt is selected sodium salt, calcium salt, mantoquita, molysite and aluminium salt etc. for use.
M is a metal ion
(3) mixture of cellulose sulfuric acid ester and terpolycyantoamino-formaldehyde resin sodium sulfonate.
Cellulose sulfuric acid ester type concrete additive provided by the invention has good application performance to concrete, when it is spiked into time marquis in the cement concrete with certain amount, can improve flowability, mechanical strength and other performance of cement concrete significantly.The result of use of concrete admixture provided by the invention is listed in the table below, for comparing:
| CS (C％) | NFG (C％) | MS (C％) | Flowing degree of net paste of cement (mm) | Cement paste | Sand-cement slurry | ||
| Water cement ratio | Ultimate compression strength (MPa) | Water cement ratio | Ultimate compression strength (MPa) | ||||
| 0.15 | 0 | 0 | 107 | 0.37 | 53.7 | 0.38 | 39.6 |
| 0.25 | 0 | 0 | 140 | 0.36 | 59.6 | 0.37 | 41.1 |
| 0.2 | 0.3 | 0 | 203 | 0.29 | 79.8 | 0.33 | 43.5 |
| 0.2 | 0 | 0.3 | 209 | 0.28 | 85.1 | 0.32 | 45.9 |
| 0 | 0 | 0 | 66 | 0.4 | 41.9 | 0.44 | 35.2 |
Wherein C is the cement abbreviation; CS: its substitution value of cellulose sulfuric acid ester is 0.36, viscosity 2.9mPa.s, NFG; The naphthalene sulfonic acidformaldehyde condensation product sodium salt, its polymerization degree n is about 10, from synthetic sample; MS: terpolycyantoamino-formaldehyde resin sodium sulfonate; Flowing degree of net paste of cement is measured according to method shown in the GB8076-87, and wherein water cement ratio is 0.35.Cement paste and sand-cement slurry ultimate compression strength are measured according to method shown in the GB177-77.Sand meets the specification of quality of stipulating among the GB178-77 in the sand-cement slurry, and the mass ratio of cement and standard sand is 1: 2.5.When being mixed with admixture, select suitable water cement ratio, to keep and clean slurry of the reference cement of not mixing admixture or the identical degree of mobilization of mortar.As can be seen from the table, different three kinds of prescription patterns, though to cement performance have scarcely with, the ultimate compression strength and the flowing property of can add all apparent in view raising of admixture of the present invention certainly cement paste and sand-cement slurry.
Embodiment one
0.25% cellulose sulfuric acid ester (the substitution value: 0.42 of admixture cement amount, viscosity 5.3mPa.s) flowing degree of net paste of cement reaches 115mm, with clean slurry of admixture admixture reference cement not or the identical degree of mobilization of sand-cement slurry under, cement paste ultimate compression strength reaches 60.9MPa, and sand-cement slurry ultimate compression strength reaches 41.4MPa.
Embodiment two
0.35% cellulose sulfuric acid ester (the substitution value 0.36 of admixture cement amount, viscosity: 2.9mPa.s) with naphthalene sulfonic acidformaldehyde condensation product sodium salt mixture, its proportioning is 0.25: 0.1, flowing degree of net paste of cement reaches 140mm, with clean slurry of admixture admixture reference cement not or the identical degree of mobilization of sand-cement slurry under, cement paste ultimate compression strength reaches 74.7MPa, and sand-cement slurry ultimate compression strength reaches 42.1MPa.
Embodiment three
0.35% cellulose sulfuric acid ester (the substitution value: 0.42 of admixture cement amount, viscosity: 5.3mPa.s) with terpolycyantoamino-formaldehyde resin sodium sulfonate mixture, its proportioning is 0.25: 0.1, flowing degree of net paste of cement reaches 126mm, starching under the identical degree of mobilization with admixture admixture reference cement is unclean, cement paste ultimate compression strength reaches 75.1MPa, and sand-cement slurry ultimate compression strength reaches 42.9MPa.
Claims (1)
1. a concrete admixture is characterized in that containing cellulose sulfuric acid ester, and consumption is not more than 0.35% of cement weight, and its substitution value is 0.1-2.0, and viscosity is 1.4-500mPas under 25 ℃ of conditions of 3% aqueous solution, and three kinds of prescription patterns are arranged:
(1) above-mentioned cellulose sulfuric acid ester, molecular formula:
R is H or SO
3Na;
(2) the above-mentioned cellulose sulfuric acid ester and the mixture of naphthalene sulfonic acidformaldehyde condensation product metal-salt, wherein the volume of naphthalene sulfonic acidformaldehyde condensation product metal-salt is not more than 0.3% of cement amount, and cellulose sulfuric acid ester and naphthalene sulfonic acidformaldehyde condensation product metal-salt are can arbitrary proportion compound, wherein metal ion is sodium, calcium, copper, iron or aluminium, molecular formula:
M is a metal ion;
(3) above-mentioned cellulose sulfuric acid ester and terpolycyantoamino-formaldehyde resin sodium sulfonate mixture, wherein terpolycyantoamino-formaldehyde resin sodium sulfonate mixture volume is to be not more than 0.3% of cement weight, and cellulose sulfuric acid ester and terpolycyantoamino-formaldehyde resin sodium sulfonate mixture are can any ratio compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95104886A CN1044466C (en) | 1995-05-10 | 1995-05-10 | Cellulose sulfuric acid ester type concrete additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95104886A CN1044466C (en) | 1995-05-10 | 1995-05-10 | Cellulose sulfuric acid ester type concrete additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1117477A CN1117477A (en) | 1996-02-28 |
| CN1044466C true CN1044466C (en) | 1999-08-04 |
Family
ID=5075284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95104886A Expired - Fee Related CN1044466C (en) | 1995-05-10 | 1995-05-10 | Cellulose sulfuric acid ester type concrete additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1044466C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406402C (en) * | 2005-12-29 | 2008-07-30 | 中交第二航务工程局有限公司 | Compounding process of concrete hydration reducer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784693A (en) * | 1987-10-30 | 1988-11-15 | Aqualon Company | Cementing composition and aqueous hydraulic cementing solution comprising water-soluble, nonionic hydrophobically modified hydroxyethyl cellulose |
| DE3920025A1 (en) * | 1989-06-20 | 1991-01-03 | Aqualon Gmbh | Additive mixts. for gypsum materials - contain cellulose derivs., thickeners and fluidiser(s) |
| DE4407499A1 (en) * | 1993-03-10 | 1994-09-15 | Sandoz Ag | Fluidiser for cement mixtures |
-
1995
- 1995-05-10 CN CN95104886A patent/CN1044466C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784693A (en) * | 1987-10-30 | 1988-11-15 | Aqualon Company | Cementing composition and aqueous hydraulic cementing solution comprising water-soluble, nonionic hydrophobically modified hydroxyethyl cellulose |
| DE3920025A1 (en) * | 1989-06-20 | 1991-01-03 | Aqualon Gmbh | Additive mixts. for gypsum materials - contain cellulose derivs., thickeners and fluidiser(s) |
| DE4407499A1 (en) * | 1993-03-10 | 1994-09-15 | Sandoz Ag | Fluidiser for cement mixtures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1117477A (en) | 1996-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |