CN1083807C - Method for modifying concrete - Google Patents
Method for modifying concrete Download PDFInfo
- Publication number
- CN1083807C CN1083807C CN99116208A CN99116208A CN1083807C CN 1083807 C CN1083807 C CN 1083807C CN 99116208 A CN99116208 A CN 99116208A CN 99116208 A CN99116208 A CN 99116208A CN 1083807 C CN1083807 C CN 1083807C
- Authority
- CN
- China
- Prior art keywords
- cement
- lignosulfonic acid
- quaternary ammonium
- sand
- compression strength
- 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
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 77
- -1 lignosulfonic acid quaternary ammonium salt Chemical class 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 3
- 229920005550 ammonium lignosulfonate Polymers 0.000 abstract 2
- 125000001453 quaternary ammonium group Chemical group 0.000 abstract 2
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 21
- 230000006835 compression Effects 0.000 description 19
- 238000007906 compression Methods 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000000203 mixture Substances 0.000 description 11
- FOGYNLXERPKEGN-UHFFFAOYSA-N 3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfopropyl)phenoxy]propane-1-sulfonic acid Chemical compound COC1=CC=CC(CC(CS(O)(=O)=O)OC=2C(=CC(CCCS(O)(=O)=O)=CC=2)OC)=C1O FOGYNLXERPKEGN-UHFFFAOYSA-N 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- 230000015271 coagulation Effects 0.000 description 5
- 238000005345 coagulation Methods 0.000 description 5
- 229920005610 lignin Polymers 0.000 description 5
- 229920001732 Lignosulfonate Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019357 lignosulphonate Nutrition 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 239000003638 chemical reducing agent 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
- 239000007859 condensation product Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 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 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The present invention discloses a method for modifying cement concrete by using quaternary ammonium lignosulfonate. The method of the present invention mixes 0.15 to 0.25% of quaternary ammonium lignosulfonate as an additive into cement concrete so as to obviously increase the dispersive performance and ensure good water-reducing and strengthening performance.
Description
The present invention relates to a kind of method of cement concrete modifying.
Concrete admixture is one of indispensable component of modern concrete, is a kind of important method and the technology of concrete modifying.Mix a small amount of admixture and just can change the serviceability of fresh concrete, the physical and mechanical property and the weather resistance of raising maturing, thereby help realizing mechanized construction, satisfy the needs of different engineerings, can save cement simultaneously, reduce cost cement concrete.Common concrete aggregate admixture mainly contains following a few class both at home and abroad: 1) sulfonated lignin and modifier thereof; 2) naphthalenesulfonate formaldehyde condensation compound; 3) Soxylat A 25-7 and derivative thereof; 4) polycyclic aromatic hydrocarbon sulfonate formaldehyde condensation products; 5) melamine sulfonate and formaldehyde polycondensate; 6) polycarboxylic acid series additive comprises: a. polycarboxylate system, and b. contains sulfonic poly carboxylic acid multipolymer, and c. maleic anhydride copolymer, d. contain carboxylic acid group, sulfonic polycarboxylic acid series.Along with developing rapidly of world economy, the modern architecture industry is more and more higher to the requirement of cement concrete material, the concrete technology development is in a new change period again, and development novel high-performance cement concrete admixture is the popular research topic of countries in the world always.
Sulfonated lignin, particularly calcium lignin sulphonate are present most popular ordinary water-reducing agents, and this shows at Chen Jiankui in " principle of concrete admixture and application " and the U.S. Pat 4,373,956 (1983) and all disclosed.
The purpose of this invention is to provide a kind of method that makes cement concrete modifying with the lignosulfonic acid quaternary ammonium salt as admixture.
The present invention adopts the lignosulfonic acid quaternary ammonium salt, is that raw material prepares by ion exchange method with the calcium lignin sulphonate, is respectively: lignosulfonic acid CH
3N
+(CH
2CH
2OH)
3Salt, lignosulfonic acid CH
3N
+(CH
2CH
3)
3Salt, lignosulfonic acid (CH
3)
3N
+CH
2CH
2N
+(CH
3)
3Salt, lignosulfonic acid C
6H
5CH
2N
+(CH
2CH
3)
3Salt, lignosulfonic acid CH
3(CH
2)
15N
+(CH
3)
3Salt, adds in the water inlet mud than the consumption that is 0.15-0.25% with by mass of cement as concrete admixture with this.
Used lignosulfonic acid quaternary ammonium salt is 5000～15000 for good with molecular weight ranges.
Lignosulfonic acid quaternary ammonium salt admixture result of use provided by the invention sees Table 1 and table 2, and flowing degree of net paste of cement is measured according to method shown in the GB8077-87; Cement paste and sand-cement slurry ultimate compression strength are measured according to method shown in the GB177-77, and sand meets the specification of quality of stipulating among the GB178-77 in the sand-cement slurry, and the weight ratio of cement and standard sand is 1: 2.5; The method shown in the GB1346-89 of pressing time of coagulation is measured.
From table 1 and table 2 data as can be seen, five kinds of different chemical structures lignosulfonic acid quaternary ammonium salts provided by the invention are done
Five kinds of lignosulfonic acid quaternary ammonium salts of table 1 are to the influence of cement performance
| Sample number | Volume (%) | Flowing degree of net paste of cement/mm | Cement paste 28d ultimate compression strength | Sand-cement slurry 28d ultimate compression strength | |||
| Water cement ratio | Degree of mobilization | Water cement ratio | Ultimate compression strength/MPa | Water cement ratio | Ultimate compression strength/MPa | ||
| A | 0.15 | 0.35 | 143 | 0.35 | 67.3 | 0.37 | 46.1 |
| 0.25 | 0.33 | 161 | 0.33 | 68.4 | 0.35 | 46.3 | |
| B | 0.15 | 0.35 | 138 | 0.35 | 65.0 | 0.37 | 44.3 |
| 0.25 | 0.33 | 155 | 0.33 | 66.8 | 0.35 | 46.0 | |
| C | 0.15 | 0.35 | 140 | 0.35 | 66.0 | 0.37 | 45.5 |
| 0.25 | 0.33 | 159 | 0.33 | 68.8 | 0.35 | 46.3 | |
| D | 0.15 | 0.35 | 150 | 0.35 | 62.2 | 0.37 | 42.7 |
| 0.25 | 0.33 | 160 | 0.33 | 65.9 | 0.35 | 45.9 | |
| E | 0.15 | 0.35 | 143 | 0.35 | 60.8 | 0.37 | 42.3 |
| 0.25 | 0.33 | 155 | 0.33 | 71.1 | 0.35 | 47.0 | |
| F | 0.15 | 0.35 | 143 | 0.35 | 66.3 | 0.37 | 44.6 |
| 0.25 | 0.33 | 166 | 0.33 | 64.3 | 0.35 | 43.5 | |
| Blank | 0 | 0.35 | 114 | 0.40 | 54.4 | 0.44 | 40.3 |
Five kinds of lignosulfonic acid quaternary ammonium salts of table 2 are to the cement paste influence of time of coagulation
| Sample number | Volume is 0.15%, water-cement ratio is 0.35 | Volume is 0.25%, water cement ratio is 0.33 | ||
| Presetting period/min | Final setting time/min | Presetting period/min | Final setting time/min | |
| A | 295 | 376 | 384 | 467 |
| B | 261 | 321 | 367 | 457 |
| C | 267 | 352 | 345 | 420 |
| D | 289 | 366 | 387 | 467 |
| E | 284 | 366 | 391 | 476 |
| F | 317 | 403 | 426 | 511 |
| Blank | Water cement ratio is 0.40: presetting period=208min, final setting time=295min | |||
Annotate 1: volume is the per-cent of additive by mass of cement in the table
Annotate 2:A-lignosulfonic acid CH
3N
+(CH
2CH
3)
3Salt
B-lignosulfonic acid CH
3N
+(CH
2CH
2OH)
3Salt
C-lignosulfonic acid C
6H
5CH
2N
+(CH
2CH
3)
3Salt
D-lignosulfonic acid (CH
3)
3N
+CH
2CH
2N
+(CH
3)
3Salt
E-lignosulfonic acid CH
3(CH
2)
15N
+(CH
3)
3Salt.
F-lignosulfonic acid Ca
2+For cement additire can obviously improve the degree of mobilization of newly mixing cement paste; From the cement paste compression strength value, when volume is 0.25%, water cement ratio is under 0.33 the condition, the cement paste 28d ultimate compression strength that the cement paste 28d compressive strength rate of mixing above-mentioned five kinds of lignosulfonic acid quaternary ammonium salts is mixed calcium lignin sulphonate on average improves 3.4Mpa; From the sand-cement slurry compression strength value, when volume is 0.25%, water cement ratio is under 0.37 the condition, the sand-cement slurry 28d ultimate compression strength that the sand-cement slurry 28d compressive strength rate of mixing above-mentioned five kinds of lignosulfonic acid quaternary ammonium salts is mixed calcium lignin sulphonate on average improves 2.8Mpa; From data time of coagulation, time of coagulation on average shorten 53.6min than the cement paste of mixing calcium lignin sulphonate cement paste time of coagulation of mixing above-mentioned five kinds of lignosulfonic acid quaternary ammonium salts, thereby demonstrate more excellent application performance.
Embodiment 1
Mix the lignosulfonic acid CH of by mass of cement 0.15%
3N
+(CH
2CH
3)
3Salt, water cement ratio is that 0.35 flowing degree of net paste of cement is 143mm, presetting period to be that 295min, final setting time are 376min, with do not mix clean slurry of admixture reference cement or the identical degree of mobilization of sand-cement slurry under, cement paste ultimate compression strength reaches 67.6MPa, sand-cement slurry ultimate compression strength reaches 46.1MPa.
Embodiment 2
Mix the lignosulfonic acid CH of by mass of cement 0.25%
3N
+(CH
2CH
2OH)
3Salt, water cement ratio is that 0.33 flowing degree of net paste of cement is 155mm, presetting period to be that 367min, final setting time are 457min, with do not mix clean slurry of admixture reference cement or the identical degree of mobilization of sand-cement slurry under, cement paste ultimate compression strength reaches 66.8MPa, sand-cement slurry ultimate compression strength reaches 46.0MPa.
Embodiment 3
Mix lignosulfonic acid C with cement weight 0.15%
6H
5CH
2N
+(CH
2CH
3)
3Water cement ratio is that 0.35 flowing degree of net paste of cement is 140mm, presetting period to be that 267min, final setting time are 352min, with do not mix clean slurry of admixture reference cement or the identical degree of mobilization of sand-cement slurry under, cement paste ultimate compression strength reaches 66.0MPa, sand-cement slurry ultimate compression strength reaches 45.5MPa.
Embodiment 4
Mix the lignosulfonic acid (CH of by mass of cement 0.25%
3)
3N
+CH
2CH
2N
+(CH
3)
3Salt, water cement ratio is that 0.33 flowing degree of net paste of cement is 160mm, presetting period to be that 387min, final setting time are 467min, with do not mix clean slurry of admixture reference cement or the identical degree of mobilization of sand-cement slurry under, cement paste ultimate compression strength reaches 65.9MPa, sand-cement slurry ultimate compression strength reaches 45.9MPa.
Embodiment 5
Mix the lignosulfonic acid CH of by mass of cement 0.25%
3(CH
2)
15N
+(CH
3)
3Salt, water cement ratio is that 0.33 flowing degree of net paste of cement is 155mm, presetting period to be that 391min, final setting time are 476min, with do not mix clean slurry of admixture reference cement or the identical degree of mobilization of sand-cement slurry under, cement paste ultimate compression strength reaches 71.1MPa, sand-cement slurry ultimate compression strength reaches 47.0MPa.
Claims (1)
1, a kind of method of cement concrete modifying is characterized in that:, add among the mud of intaking than the consumption that is 0.15-0.25% with by mass of cement as cement concrete admixture with the lignosulfonic acid quaternary ammonium salt; Positively charged ion is respectively in the chemical structure of wherein used lignosulfonic acid quaternary ammonium salt: CH
3N
+(CH
2CH
3)
3, CH
3N
+(CH
2CH
2OH)
3, C
6H
5CH
2N
+(CH
2CH
3)
2, (CH
3)
3N
+CH
2CH
2N
+(CH
3)
3, CH
3(CH
2)
15N
+(CH
3)
3, its molecular weight ranges is 5000～15000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116208A CN1083807C (en) | 1999-05-28 | 1999-05-28 | Method for modifying concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116208A CN1083807C (en) | 1999-05-28 | 1999-05-28 | Method for modifying concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1235131A CN1235131A (en) | 1999-11-17 |
| CN1083807C true CN1083807C (en) | 2002-05-01 |
Family
ID=5279047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99116208A Expired - Fee Related CN1083807C (en) | 1999-05-28 | 1999-05-28 | Method for modifying concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1083807C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093098C (en) * | 2000-03-22 | 2002-10-23 | 中国科学院广州化学研究所 | Cement concrete modifying method with condensate of melamine sulfonate and formaldehyde |
| JP4007997B2 (en) * | 2005-05-13 | 2007-11-14 | 新日本石油株式会社 | Modified sulfur solidified body production system |
| CN102584071A (en) * | 2011-01-06 | 2012-07-18 | 海宁润辉塑胶有限公司 | Cement additive produced by replacing active material with inert material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4373956A (en) * | 1981-09-14 | 1983-02-15 | Martin Marietta Corporation | Additive for hydraulic cement mixes |
| CN1030574A (en) * | 1987-06-25 | 1989-01-25 | 清华大学 | High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate |
| CN1107817A (en) * | 1994-12-14 | 1995-09-06 | 华南理工大学 | Method for preparing high impervious and anticorrosive concrete with ternary agent |
-
1999
- 1999-05-28 CN CN99116208A patent/CN1083807C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4373956A (en) * | 1981-09-14 | 1983-02-15 | Martin Marietta Corporation | Additive for hydraulic cement mixes |
| CN1030574A (en) * | 1987-06-25 | 1989-01-25 | 清华大学 | High-efficient water reducer made of alkyl aryl sulfonate and aldehyde naphthalene sulfonate condensate |
| CN1107817A (en) * | 1994-12-14 | 1995-09-06 | 华南理工大学 | Method for preparing high impervious and anticorrosive concrete with ternary agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1235131A (en) | 1999-11-17 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |