CN102531446B - Cement additive for municipal works and high-rise buildings - Google Patents
Cement additive for municipal works and high-rise buildings Download PDFInfo
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- CN102531446B CN102531446B CN 201110360632 CN201110360632A CN102531446B CN 102531446 B CN102531446 B CN 102531446B CN 201110360632 CN201110360632 CN 201110360632 CN 201110360632 A CN201110360632 A CN 201110360632A CN 102531446 B CN102531446 B CN 102531446B
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Abstract
The invention aims at providing a cement additive, which is composed of the following raw materials by weight: 25-35% of calcium oxide, 20-30% of methylene diphenyl sodium benzoate, 12-18% of polycarboxylic acid polymer, 7-15% of polysorbate, 4-8% of triethanolamine, 3-6% of calcium acetate, 1-3% of diethylene glycol, 1-3% of melamine and 1-3% of sodium sulfite. The cement additive can be widely applied in fields of construction, building materials, transportation, water conservancy and the like, is particularly suitable for large-volume concrete and projects of foundations, road surfaces, seabed, tunnels, bridges and the like, is suitable for concrete of high-rise buildings, foundation rod surfaces, bridges and buildings having specific requirements, has obvious strengthening effect, remarkably improves early-stage strength and long-term strength of cement, and can meet requirements of high-performance cement products.
Description
Technical field
The present invention relates to a kind of cement additire for public works and Highrise buildings, is specially a kind of cement additire.Belong to the applied chemistry field.
Background technology
The present invention relates to a kind of cement additire for public works and Highrise buildings, be applicable to public works and Highrise buildings, relate to road, bridge, Highrise buildings.
Along with social development, scientific-technical progress, improving constantly of human actual life demand, especially in China, because economical is flourish, need a large amount of capital constructions, to satisfy modernization construction, at present, along with being on the increase of road, bridge dwelling house and other Highrise buildings, increasing cement additire is applied in the above-mentioned construction.
Cement additire is a kind of chemical additive that improves cement grinding effect and performance, can significantly improve each age strength of cement grinding mill unit-hour output and cement.The electrostatic adhesion bag ball phenomenon that cement additire can decrease forms in the grinding process, and can reduce the again coalescent trend of the ultra-fine grain that forms in the grinding process, reduced the grinding phenomenon.Cement additire also can significantly improve cement fluidity, improves the mill efficiency of grinding machine and the grinding efficiency of powder separating machine, thereby reduces grinding energy.As a kind of chemical activator, cement additire can improve the hydration activity that cement granules distributes and excites each blended material, thereby improves cement early strength and later strength.
The objective of the invention is provides a kind of cement additire for public works and Highrise buildings, thereby makes construction more convenient in order to satisfy modern architecture industry needs, and the building quality is higher.Particularly be applicable to public works and Highrise buildings, relate to road, bridge, Highrise buildings.
Chinese patent application 200510017440 discloses a kind ofly can increase cement output, reduce cement cost, refinforced cement intensity, antifreeze grinding aid, regulate cement setting time, increase the composite cement admixture of concrete density, is made by weight by 10 parts in 30 parts in sodium sulfate, 10 parts in Tai-Ace S 150,30 parts in calcium chloride, 20 parts in calcium sulfate, white lime.Chinese patent application 200510048189 discloses a kind of cement additire that is comprised of the raw material of following part by weight: Production of Potassium Sulphate byproduct 70～85%, limestone powder 5～20%, calcined gypsum 5～20%.Chinese patent application 200710139525 discloses a kind of cement additire, is specially a kind of high-strength composite cement additive.Solved the higher problem of cement clinker usage quantity that exists in the prior art.Formed by weight proportion calcium oxide 30～40%, alunite 30～40%, tripoly phosphate sodium STPP 1～3%, S-WAT 1～3%, saltcake 15～25%, potassium formiate 5～10%, tri-isopropanolamine 1～3% by following raw materials according.
Cement additire still exists the defective that insufficient strength is high, setting rate is slow in the above-mentioned prior art, is not suitable for for example using in road, bridge, the Highrise buildings in the anti-high-intensity building of needs.Thus, urgent need will be developed a kind of high strength, the fast cement additire that is used for public works and Highrise buildings of setting rate.
We find a kind of cement additire for public works and Highrise buildings in test of long duration and practice, cement additire of the present invention is excellent in the performance of the aspects such as intensity, toughness, stability, be specially adapted to public works and Highrise buildings, relate to road, bridge, Highrise buildings.And by adding this cement additire, so that cement surface is smooth, effect with obvious brightness.
Summary of the invention
The present invention is for the series of problems that solves the cement additire that exists in the prior art and face and a kind of cement additire that provides.
The present invention realizes by following technical scheme, and a kind of cement additire for public works and Highrise buildings is made of by weight proportion following raw materials according, formed by weight proportion by following raw materials according, calcium oxide 25～35%, methylene radical diphenylhydantoin sodium 20～30%, co-poly carboxylic acid 12～18%, polysorbate 7～15%, trolamine 4～8%, lime acetate 3～6%, glycol ether 1～3%, trimeric cyanamide 1～3%, S-WAT 1～3%.
The preferred part by weight of technique scheme of the present invention consists of calcium oxide 30%, methylene radical diphenylhydantoin sodium 26%, co-poly carboxylic acid 16%, polysorbate 12%, trolamine 5%, lime acetate 5%, glycol ether 2%, trimeric cyanamide 2%, S-WAT 2%.
Composite cement additive of the present invention can be used for the preparation of strong concrete mixture, and described strong concrete mixture can comprise composite cement additive of the present invention.
The invention provides a kind of method for preparing the strong concrete mixture, be included in and introduce composite cement additive of the present invention in the mixture.
The present invention also provides a kind of method for preparing described composite cement additive, it is characterized in that and to grind according to the described mixing of materials that part by weight takes by weighing, according to 1～1.5% part by weight, preferred 1% part by weight used in concrete after the mixture of aforementioned proportion pulverized.
Composite cement additive of the present invention is being used for following purposes:
I. stablize or the improvement cement performance;
Ii. add and fix the sand and/or slag, be used for for example constructing road, bridge, Highrise buildings.
Lime acetate of the present invention is compared with the setting accelerator calcium formiate, has better short solidifying effect, and can impel cement final set in 3-5 hour, and is less to the swelling agent performance impact, and less to metal protection.
Trimeric cyanamide of the present invention can be as high efficiency water reducing agent, cement is condensed very soon and forms densification and the upper layer of light, increase light and the smoothness of concrete surface, and it can increase concrete hardness and intensity again simultaneously.
Cement additire preparation method of the present invention is that the above-mentioned mixing of materials that will take by weighing according to part by weight grinds, and according to 1～1.5% part by weight, preferred 1% part by weight used after the mixture of aforementioned proportion was pulverized.The cement additire of the above-mentioned part by weight after when Portland cement, complex cement grog stir mixed grinding being pulverized evenly mixes and gets final product.Additive of the present invention participates in chemical reaction within a certain period of time, to Portland cement, complex cement early, later strength all has good chemi-excitation effect.In test determination, the index of the aspects such as its intensity, toughness, stability performance is excellent, and has so that cement surface is smooth, effect with obvious brightness.
Embodiment:
With above-mentioned cement additire by following raw material by weight proportion: calcium oxide 25～35%, methylene radical diphenylhydantoin sodium 20～30%, co-poly carboxylic acid 12～18%, polysorbate 7～15%, trolamine 4～8%, lime acetate 3～6%, glycol ether 1～3%, trimeric cyanamide 1～3%, S-WAT 1～3%, mixed grinding is pulverized, in order to using; Preferably by following raw material by weight proportion: calcium oxide 30%, methylene radical diphenylhydantoin sodium 26%, co-poly carboxylic acid 16%, polysorbate 12%, trolamine 5%, lime acetate 5%, glycol ether 2%, trimeric cyanamide 2%, S-WAT 2%, mixed grinding is pulverized, in order to using.
Simultaneous test 1: the simultaneous test of using the embodiment of the present application 1 described composite cement additive front and back: mix respectively in the cement of different enterprises in cement testing glue sand whipping process with the described composite cement additive of the application, compare test by ISO cement mortar strength method.
The composite cement additive component is by weight proportion: calcium oxide 30%, methylene radical diphenylhydantoin sodium 26%, co-poly carboxylic acid 16%, polysorbate 12%, trolamine 5%, lime acetate 5%, glycol ether 2%, trimeric cyanamide 2%, S-WAT 2%.
Following table is that the present invention is in the practical effect report in Anhui conch and two cement mill of Hebei Ji Dong.
Anhui conch group Ningguo cement mill chemical examination on June 7th, 2011 code name: P026
The Ji Dong of Hebei province Cement Group Ji Dong cement mill chemical examination on May 21st, 2011 code name: T076
The Cement Quality standard of above-mentioned code name P026 and T076 sees the following form 1:
Table 1: Cement Quality index
| Kind | Tail over (%) | SO3(％) | Loss on ignition (%) | Initial set (h:min) | Final set (h:min) |
| P026 | 1.6 | 2.26 | 5.32 | 2∶28 | 4∶29 |
| T076 | 1.7 | 2.45 | 4.88 | 2∶35 | 4∶34 |
P026 cement comparative test result sees Table 2, T076 cement comparative test result and sees Table 3.
Table 2:P026 cement simultaneous test
Table 2:T076 cement simultaneous test
The above results shows, the described composite cement additive of the application is a kind of good quality improving agent, can improve significantly the anti-pressure ability of cement 28d ISO, and its amplification can reach 28%.
Simultaneous test 2: color test
White cement with commercially available 32.5MPa strength grade mixes the embodiment of the present application 1 described composite cement additive and does not add cement additire, production is of a size of each 5 compact body of smooth concrete plate brick of 300mm * 300mm * 60mm, the demoulding after leaving standstill 7 days under 20 ± 2 ℃, observe the product surface situation, as shown in table 4:
Table 4: add the described composite cement additive of the application and do not add the quality authentication of the smooth concrete plate brick of cement additire
Conclusion: cement additire of the present invention is applicable to prepare smooth concrete plate brick, its smooth surface, and glossy degree, elegant in appearance.
Simultaneous test 3: the experimental verification simultaneous test of cement additire of the present invention, the A group is the blank group, B, C group has been used respectively the additive of the present invention of certain addition, and it is 200710139525 described high-strength compound type admixtures that the D group has been used application number.
Conclusion: in cement pulverizing course, add cement additire 0.6～1.0% of the present invention, can significantly improve the properties of cement, for example stability significantly increases, ultimate compression strength significantly improves 12～18MPa, folding strength increases greatly, be that 200710139525 described high-strength compound type admixtures are compared with application number, ultimate compression strength and folding strength all increase significantly.
In sum, cement additire of the present invention, can improve concrete weather resistance, for the production of cement or concrete batching, being applicable to strength grade is C10～C50 concrete, can be widely used in building, building materials, traffic, the fields such as water conservancy, be specially adapted to the concrete of large volume, the basis, the road surface, the seabed, the tunnel, the engineerings such as bridge, be applicable to Highrise buildings, the road surface, basis, bridge and the concrete that has particular requirement to build, have obvious reinforced effects, the early stage and later strength of cement all is greatly improved, and can satisfy the needs of high-performance water mud product.
Embodiment
Embodiment 1, and a kind of cement additire is made of by weight proportion following raw materials according, calcium oxide 30%, methylene radical diphenylhydantoin sodium 26%, co-poly carboxylic acid 16%, polysorbate 12%, trolamine 5%, lime acetate 5%, glycol ether 2%, trimeric cyanamide 2%, S-WAT 2%.
Embodiment 2, and a kind of cement additire is made of by weight proportion following raw materials according, calcium oxide 32%, methylene radical diphenylhydantoin sodium 24%, co-poly carboxylic acid 15%, polysorbate 14%, trolamine 4%, lime acetate 6%, glycol ether 2%, trimeric cyanamide 1.5%, S-WAT 1.5%.
Embodiment 3, and a kind of cement additire is made of by weight proportion following raw materials according, calcium oxide 25%, methylene radical diphenylhydantoin sodium 30%, co-poly carboxylic acid 18%, polysorbate 7%, trolamine 6%, lime acetate 6%, glycol ether 3%, trimeric cyanamide 3%, S-WAT 2%.
Embodiment 4, and a kind of cement additire is made of by weight proportion following raw materials according, calcium oxide 35%, methylene radical diphenylhydantoin sodium 20%, co-poly carboxylic acid 13%, polysorbate 15%, trolamine 5%, lime acetate 6%, glycol ether 3%, trimeric cyanamide 1.5%, S-WAT 1.5%.
Embodiment 5: produce high strength cement
Prepare grog 50-70% and do not wait, slag (powder) 20-50% adds respectively the composite cement additive described in the embodiment 1-4 after 0.6～1.0% grind, and is mixed getting final product.
Embodiment 6: preparation strong concrete mixture
With the composite cement additive mixing described in the embodiment 1-4 after water and of the present invention the grinding 5-10 minute, then add thick material (for example rubble), then mixed 2-5 minute.Add at last cement, and mix continuously and can make the strong concrete mixture in 5-10 minute.The consumption of composite cement additive is 1～1.5 % by weight (preferred 1%) of cement.
The high strength cement that above-described embodiment 5-6 prepares or strong concrete mixture can be widely used in the fields such as building, building materials, traffic, water conservancy, be specially adapted to the concrete of large volume, the engineerings such as basis, road surface, seabed, tunnel, bridge are applicable to Highrise buildings, basic road surface, bridge construction and the concrete of particular requirement are arranged.
The above is preferred implementation of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Allly within the spirit and principle of invention, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. cement additire that is used for public works and Highrise buildings, it is characterized in that: formed by weight proportion by following raw materials according, calcium oxide 25～35%, methylene radical diphenylhydantoin sodium 20～30%, co-poly carboxylic acid 12～18%, polysorbate 7～15%, trolamine 4～8%, lime acetate 3～6%, glycol ether 1～3%, trimeric cyanamide 1～3%, S-WAT 1～3%.
2. cement additire according to claim 1, it is characterized in that: formed by weight proportion by following raw materials according, calcium oxide 30%, methylene radical diphenylhydantoin sodium 26%, co-poly carboxylic acid 16%, polysorbate 12%, trolamine 5%, lime acetate 5%, glycol ether 2%, trimeric cyanamide 2%, S-WAT 2%.
3. strong concrete mixture comprises according to claim 1 the cement additire of-2 any one.
4. a method for preparing the strong concrete mixture is included in and introduces according to claim 1-2 cement additire of any one in the mixture.
5. method for preparing claim 1 or 2 described cement additires for public works and Highrise buildings, it is characterized in that and to grind according to the described mixing of materials that part by weight takes by weighing, according to 1～1.5% part by weight, in concrete, use after the mixture of aforementioned proportion pulverized.
6. the purposes of claim 1 or 2 described cement additires for public works and Highrise buildings, it is used for:
I. stablize or the improvement cement performance;
Ii. add and fix the sand and/or slag, be used for constructing road, bridge, Highrise buildings;
Iii. improve concrete and show sliding brightness.
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| CN 201110360632 CN102531446B (en) | 2011-11-15 | 2011-11-15 | Cement additive for municipal works and high-rise buildings |
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| CN 201110360632 CN102531446B (en) | 2011-11-15 | 2011-11-15 | Cement additive for municipal works and high-rise buildings |
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| CN102531446B true CN102531446B (en) | 2013-01-16 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2904811A1 (en) * | 2013-03-13 | 2014-09-18 | Sika Technology Ag | Use of polycarboxylate ethers in combination with other additives for milling cement |
| CN105924032A (en) * | 2016-04-23 | 2016-09-07 | 徐玉仙 | Cement additive |
| CN106431053A (en) * | 2016-09-22 | 2017-02-22 | 李艳荣 | Cement additive for buildings |
| CN108295999B (en) * | 2018-01-22 | 2019-11-19 | 张藜泷 | A kind of Khotan jade superfine powder and preparation method thereof |
| CN111116065A (en) * | 2018-10-31 | 2020-05-08 | 慧邦开源（北京）科技有限公司 | Novel cement special for bridge manufacturing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451624A (en) * | 2002-04-19 | 2003-10-29 | 尹小林 | Industrial waste residue activating grinding aid |
| WO2006107069A1 (en) * | 2005-03-30 | 2006-10-12 | Nippon Shokubai Co., Ltd. | Cement admixture |
| WO2006132762A2 (en) * | 2005-06-02 | 2006-12-14 | W.R. Grace & Co.-Conn. | Biomass-derived grinding aids |
| CN102173632A (en) * | 2011-02-16 | 2011-09-07 | 蒋元海 | Composite plastic-retaining grinding aid for cement and use method |
-
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- 2011-11-15 CN CN 201110360632 patent/CN102531446B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451624A (en) * | 2002-04-19 | 2003-10-29 | 尹小林 | Industrial waste residue activating grinding aid |
| WO2006107069A1 (en) * | 2005-03-30 | 2006-10-12 | Nippon Shokubai Co., Ltd. | Cement admixture |
| WO2006132762A2 (en) * | 2005-06-02 | 2006-12-14 | W.R. Grace & Co.-Conn. | Biomass-derived grinding aids |
| CN102173632A (en) * | 2011-02-16 | 2011-09-07 | 蒋元海 | Composite plastic-retaining grinding aid for cement and use method |
Non-Patent Citations (2)
| Title |
|---|
| 混凝土外加剂有关问题的探讨;陶波;《中国电力教育》;20101231(第31期);239-241 * |
| 陶波.混凝土外加剂有关问题的探讨.《中国电力教育》.2010,(第31期),239-241. |
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Inventor after: Xing Zhigang Inventor after: Xing Zhiyong Inventor after: Luo Haihan Inventor after: Wang Xiuqiang Inventor after: Teng Qiang Inventor after: Liu Guolin Inventor after: Mei Yufeng Inventor before: Wang Xiuqiang Inventor before: Xiang Weifeng Inventor before: Teng Qiang |
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Free format text: CORRECT: INVENTOR; FROM: WANG XIUQIANG XIANG WEIFENG TENG QIANG TO: XING ZHIGANG XING ZHIYONG LUO HAIHAN WANG XIUQIANG TENG QIANG LIU GUOLIN MEI YUFENG |