CN1621382A - Serial non-alkali, low-alkali, composite liquid concrete expansion agent - Google Patents
Serial non-alkali, low-alkali, composite liquid concrete expansion agent Download PDFInfo
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- CN1621382A CN1621382A CN 200410055478 CN200410055478A CN1621382A CN 1621382 A CN1621382 A CN 1621382A CN 200410055478 CN200410055478 CN 200410055478 CN 200410055478 A CN200410055478 A CN 200410055478A CN 1621382 A CN1621382 A CN 1621382A
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Abstract
The serial no-alkali or low-alkali composite liquid concrete expanding agents are compounded with industrial material and water and have the features of easy compounding, low alkali content, low added amount, no precipitate, etc. The serial no-alkali or low-alkali composite liquid concrete expanding agents include four types, including common no-alkali type, which has the added amount of 2-5 % and is for anticracking and antiseepage in common waterproof concrete engineering; common no-alkali water-reducing type, which has the added amount of 2-5 % and has increased water-reducing effect; low-alkali efficiently water-reducing type, which has the added amount of 4-5 % and has increased efficiently water-reducing and strengthening effects; and low-alkali pumped type, which has the added amount of 4-5 %, is used mainly for pumping construction process and is for anticracking and antiseepage in waterproof concrete engineering.
Description
Technical field the invention belongs to building materials field Concrete Additive scope.
Background technology in recent years, along with the fast development of Commercial Concrete, liquid Concrete Additive product is easy to use, time saving and energy saving and be subjected to user's welcome deeply with it.In China, the Concrete Additive of other except that swelling agent has nearly all had the appearance and the service condition of liquid product at present.As the swelling agent that plays important compensate for shrinkage, cracking resistance, antiseepage effect in concrete then almost also all is based on pulvis.Past, though also once the someone developed liquid concrete swelling agent, along with China to the improving constantly of its specification of quality, its technical performance index has been difficult to reach present requirement.Therefore, development and production and functional quality liquid concrete swelling agent product up to standard, excellent property then seems particularly necessary.It is not only just required for satisfying reality, simultaneously, also should be a direction of swelling agent researchdevelopment.The present invention develops under this background and produces.
Summary of the invention series alkali-free, low alkali, composite liquefied concrete swelling agent are that employing industrial raw material and water are formulated.Have that preparation is convenient, alkali-free or low alkali content, low addition content, do not have precipitation produce, easy to use, use characteristics such as the no alkali-aggregate reaction in back.Comprise four kinds of alkali-free coventional type, the common water reducing type of alkali-free, low-alkali high-efficiency water reducing type and low alkali pumping types.Wherein, alkali-free coventional type volume is the 2-5% of cement weight, is applicable to general waterproof concrete project, mainly plays expansion, cracking resistance, antiseepage effect; The 2-5% that the common water reducing type volume of alkali-free is a cement weight except that having medium-sized function, also has common water-reduction; Low-alkali high-efficiency water reducing type volume is the 4-5% of cement weight, except that having medium-sized function, also has efficient diminishing, enhancement; Low alkali pumping type volume is the 4-5% of cement weight, is mainly used in and adopts pumping construction technology, and the waterproof concrete project of cracking resistance, antiseepage requirement is arranged.
The prescription of series alkali-free, low alkali, composite liquefied concrete swelling agent is as follows:
Alkali-free coventional type: Tai-Ace S 150 14-35%, citric acid 1-2.5%, water 62.5-85%
The common water reducing type of alkali-free: Tai-Ace S 150 14-35%, citric acid 1-2.5%, modified lignin resin sulfonic acid magnesium 5-12.5%, water 50-80%
Low-alkali high-efficiency water reducing type: Tai-Ace S 150 14-17.5%, citric acid 1-1.25%, naphthalene series high-efficiency water-reducing agent 10-25%, water 56.25-75%
Low alkali pumping type: Tai-Ace S 150 14-17.5%, citric acid 2-2.5%, naphthalene series high-efficiency water-reducing agent 14-17.5%, modified lignin resin sulfonic acid magnesium 5-6.25%, water 56.25-65%
Wherein: after Tai-Ace S 150 adding cement and water mixed and stirred, along with progressively carrying out of hydrated reaction of cement, the calcium hydroxide and the water effect that generate with hydrated cementitious generated the contraction of swelling property crystallisate ettringite with the compensation concrete; Citric acid works to delay time of coagulation, reduce the concrete slump through the time loss.The modified lignin resin sulfonic acid magnesium play delay time of coagulation, reduce the concrete slump through the time loss, diminishing and bleed effect.Naphthalene series high-efficiency water-reducing agent plays diminishing and strengthens, increases the effect of concrete degree of mobilization.
Used raw-material amount is calculated and taken by weighing to embodiment according to play staff side's collocation relation.Earlier water is poured in the reaction vessel, then, added other required raw materials again and stir, till all being dissolved in water, can obtain.Be to improve dissolution rate, water hot a little back (water temperature is no more than 60 ℃) can be added other raw materials again and dissolve.
Claims (1)
- It is that preparation of raw material forms that series alkali-free, low alkali, composite liquefied concrete swelling agent adopt industrial aluminum sulphate, citric acid, modified lignin resin sulfonic acid magnesium, naphthalene series high-efficiency water-reducing agent and water, comprises four kinds of alkali-free coventional type, the common water reducing type of alkali-free, low-alkali high-efficiency water reducing type and low alkali pumping types.Its prescription is as follows: the alkali-free coventional type: Tai-Ace S 150 14-35%, citric acid 1-2.5%, water 62.5-85%, the common water reducing type of alkali-free: Tai-Ace S 150 14-35%, citric acid 1-2.5%, modified lignin resin sulfonic acid magnesium 5-12.5%, water 50-80%; Low-alkali high-efficiency water reducing type: Tai-Ace S 150 14-17.5%, citric acid 1-1.25%, naphthalene series high-efficiency water-reducing agent 10-25%, water 56.25-75%; Low alkali pumping type: Tai-Ace S 150 14-17.5%, citric acid 2-2.5%, naphthalene series high-efficiency water-reducing agent 14-17.5%, modified lignin resin sulfonic acid magnesium 5-6.25%, water 56.25-65%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410055478 CN1621382A (en) | 2004-08-08 | 2004-08-08 | Serial non-alkali, low-alkali, composite liquid concrete expansion agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410055478 CN1621382A (en) | 2004-08-08 | 2004-08-08 | Serial non-alkali, low-alkali, composite liquid concrete expansion agent |
Publications (1)
| Publication Number | Publication Date |
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| CN1621382A true CN1621382A (en) | 2005-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200410055478 Pending CN1621382A (en) | 2004-08-08 | 2004-08-08 | Serial non-alkali, low-alkali, composite liquid concrete expansion agent |
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| CN (1) | CN1621382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110693A (en) * | 2015-08-06 | 2015-12-02 | 青岛理工大学 | Liquid expansion agent for pumping concrete |
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2004
- 2004-08-08 CN CN 200410055478 patent/CN1621382A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110693A (en) * | 2015-08-06 | 2015-12-02 | 青岛理工大学 | Liquid expansion agent for pumping concrete |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |