CN1271701A - Repairing agent for structural cement members - Google Patents
Repairing agent for structural cement members Download PDFInfo
- Publication number
- CN1271701A CN1271701A CN99114177A CN99114177A CN1271701A CN 1271701 A CN1271701 A CN 1271701A CN 99114177 A CN99114177 A CN 99114177A CN 99114177 A CN99114177 A CN 99114177A CN 1271701 A CN1271701 A CN 1271701A
- Authority
- CN
- China
- Prior art keywords
- water
- cement
- agent
- repairing agent
- repairing
- 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.)
- Pending
Links
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Repair (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A repairing agent for structural cement members is prepared from powdered granite leftover as skeleton (30-80 wt. portions), water-soluble cellulose or non-ionic cellulose ether as water preserving agent (0.02-2), ordinary cement (100) and water (40-60) through mixing. Its advantages are low cost and excellent adhesion.
Description
The present invention relates to a kind of healant, be applicable to road or square big area cement repairing use.
On the problem of handling the fracture of cement structure, generally all adopt the polymeric adhesion material, with bonding cement components, though these adhesives bonding forces are strong, the intensity height, but exist poor stability, the weakness of easy temperature influence, its technique for sticking complexity, expensive raw material price, what have also has toxicity, and the cost height is difficult to satisfy service requirements.The large-scale cement member.The crack takes place in the use meeting owing to stress or original hidden danger in particularly highway, square, embankment one class big area member, so fall into, spoil, broken, this crack is difficult to go repairing with new cement slurry.One of reason is: cement has bigger water-absorbent, when inserting the cement new slurry, in new slurry and the dehydration rapidly of old cement interface, thereby weakened the bonding interface ability, traditional method is to make framework material with medium sand, and particle is coarse too, and costs such as cited alumina powder are big too.
Thereby in most cases, member is broken into pieces, full scale clearance is poured into a mould again.This is that an extremely lavishes labor on, the way of time and cost, and the waste material that folding removes also pollutes environment, in a lot of occasions, this dismounting will bring and have inconvenient traffic, on-road efficiency loss and disastrous danger, bridge road surface for example, the Yan Ta of factory, flood control embankment or the like.
Chinese patent CN85103638A " material for binding concrete structure " proposed interpolation sulphur with
Way, not only the cost costliness also pollutes environment; Inventor after Chinese patent CN1070628A " efficient inorganic engineering cohesive agent " proposes binding agent and must have certain expansile thinking to be of value to inspire, but its too " rapid hardening " promptly allows to put deficiency of time is not suitable for the heavy construction construction requirement.
Purpose of the present invention is exactly in order to overcome the above problems, a kind of novel repairing agent for structural cement members is provided, this healant material therefor, price is low, has good viscosifying power, and compare with various sand-cement slurry adhesivess in the past, can the significant prolongation construction operation in the mixture electricity stir and begin to producing conjunctiva phenomenon this section period.
The object of the present invention is achieved like this: with framework material, water-holding agent, Portland cement, water order by weight, its main component is: framework material 80～30, water-holding agent 0.02～2, Portland cement 100, water 60～40; Said framework material adopts depleted powder in the granite in slab production process; Said water-holding agent adopts water-soluble Mierocrystalline cellulose or non-ionic celluloses ether.The degree of etherification of this ether of cellulose is between 1.2～1.5, and consumption between best 0.5～1, can preferentially be selected the hydroxypropylcellulose methyl ether for use between 0.02～2.The mentioned component mix is become rubber cement, remove possible dirt in the crack, make it to expose clean cement section, in the crack, inject clean water and make the saturated suction of section, the slurry that mixes is injected the cement components crack tamping of having cleared up cleaning compress, can reach good viscosifying power through maintenance.
Because the water-holding agent composition among the present invention adopts hydroxypropylcelluloether ether, has the effect that improves the cement water retention capacity, thereby increased the plasticity-of cement slurry, so can reach good viscosifying power, have of many uses, advantages such as price is low, be used for road, the large-area cement components repairing in square, can change the way that in the past the cement bulk is opened repairing, the stone slab waste reside comprehensive utilization is played positive effect, turn waste into wealth, improve environmental pollution, improve the highway maintenance benefit, save a large amount of people, thing, financial resources, all have great far reaching significance.
Describe particular content of the present invention and adhering method thereof in detail below in conjunction with embodiment.
Embodiment
General cement 100, water 60, framework material 80, hydroxypropylcellulose methyl ether (degree of etherification 1.3) 0.3 stirs mixture in this this ratio, and injects and cleared up clean cement components crack tamping and compress, and can directly be used for repairing or repairing cement components.
During construction, require to remove possible dirt in the crack, make it to expose clean cement section, in the crack, inject clean water and make the saturated suction of section.
Claims (4)
1, a kind of repairing agent for structural cement members, mix by Portland cement and water, it is characterized in that in mixture, also being mixed with framework material and water-holding agent, and framework material, water-holding agent, Portland cement, water order are by weight, its main component is: skeleton 80～30, water-holding agent 0.02～2, Portland cement 100, water 60～40.
2, a kind of repairing agent for structural cement members according to claim 1 is characterized in that said framework material adopts depleted powder in the granite in slab production process.
3, a kind of repairing agent for structural cement members according to claim 1 is characterized in that said water-holding agent adopts water-soluble Mierocrystalline cellulose or non-ionic celluloses ether.The degree of etherification of this ether of cellulose is between 1.2～1.5, and consumption is between 0.02～2, between best 0.5～1.
4, a kind of repairing agent for structural cement members according to claim 3 is characterized in that said water-holding agent adopts the hydroxypropylcellulose methyl ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99114177A CN1271701A (en) | 1999-04-26 | 1999-04-26 | Repairing agent for structural cement members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99114177A CN1271701A (en) | 1999-04-26 | 1999-04-26 | Repairing agent for structural cement members |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1271701A true CN1271701A (en) | 2000-11-01 |
Family
ID=5277289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99114177A Pending CN1271701A (en) | 1999-04-26 | 1999-04-26 | Repairing agent for structural cement members |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1271701A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298664C (en) * | 2005-08-11 | 2007-02-07 | 长安大学 | Instant coagulant and mending agent for cement stabilized base |
| CN102838334A (en) * | 2012-09-28 | 2012-12-26 | 中铁十九局集团有限公司 | Concrete member mending agent, preparation method and construction method |
| CN104452563A (en) * | 2014-11-11 | 2015-03-25 | 李开成 | High-fusion type water-stop strip |
-
1999
- 1999-04-26 CN CN99114177A patent/CN1271701A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298664C (en) * | 2005-08-11 | 2007-02-07 | 长安大学 | Instant coagulant and mending agent for cement stabilized base |
| CN102838334A (en) * | 2012-09-28 | 2012-12-26 | 中铁十九局集团有限公司 | Concrete member mending agent, preparation method and construction method |
| CN102838334B (en) * | 2012-09-28 | 2014-06-11 | 中铁十九局集团有限公司 | Concrete member mending agent, preparation method and construction method |
| CN104452563A (en) * | 2014-11-11 | 2015-03-25 | 李开成 | High-fusion type water-stop strip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zeng Zaihe Document name: Notification before expiration of term |
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zeng Zaihe Document name: Deemed as a notice of withdrawal |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |