CN85103386B - Highly effective and impervious reinforcing agent used for mortar or concret - Google Patents
Highly effective and impervious reinforcing agent used for mortar or concret Download PDFInfo
- Publication number
- CN85103386B CN85103386B CN85103386A CN85103386A CN85103386B CN 85103386 B CN85103386 B CN 85103386B CN 85103386 A CN85103386 A CN 85103386A CN 85103386 A CN85103386 A CN 85103386A CN 85103386 B CN85103386 B CN 85103386B
- Authority
- CN
- China
- Prior art keywords
- mortar
- concrete
- calcium
- reinforcing agent
- calcium sulfate
- 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
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a high efficiency anti-seepage reinforcing agent used for mortar or concrete. In the primary coverage of the present invention, the existing iron chloride waterproof agent is added into calcium sulfate and zeolite, and the mechanism of adding the calcium sulfate is that the calcium sulfate reacts with calcium aluminate in cement to generate calcium sulfoaluminate. Because the trisulfide calcium sulfo-aluminate hydrate of the reaction product contains 32 kinds of crystallization water, larger volume expansion can be generated in the mortar or the concrete, and the swell increment is just used for counteracting the volume contraction of the mortar or the concrete, the cracking phenomena caused by that the volume contraction of the mortar or the concrete can not be compensated are avoided.
Description
The present invention is the improvement that belongs to mortar, concrete fill.
In mine construction, covil construction and underground works, often concrete intensity is sharply descended because of concrete is subjected to washing away of etch water, cause buildings the incident of peeling off layer by layer to occur, this is affected job schedule or shortens the work-ing life of buildings.The reason that mortar and concrete weather is: 1) mortar and inside concrete exist a lot of capillary-size pories, and the capillary-size pore is because in construction process, join excessive water in the cement behind hydrated cementitious and form.In addition, itself produce after the hardening of cement and shrink, also can produce the capillary-size pore.2) excreting water phenomenon that takes place of mortar, concrete because the water-retentivity of cement is very poor, in mortar, the concrete gather materials and cement precipitates easily, water then is expressed into concrete surface thereupon.Moisture has just formed fine bleeding passage in mortar or concrete in secreting process, this also is the principal passage of mortar or concrete seepage water.3) cement is in hydration process, and tricalcium silicate is accompanied by and produces calcium hydroxide soluble in water when generating moisture Dicalcium Phosphate (Feed Grade), when a large amount of free calcium hydroxide is dissolved in the water, can make mortar, concrete produce many cavities, cause short texture, and percolating water phenomenon occurs.4) shrinkage of mortar or concrete itself greatly also can produce cracking phenomena.
The present inventor just was the existence of eliminating mortar, concrete internal corrosion and capillary-size pore as far back as 1972, developed a kind of densifying agent-iron(ic) chloride water-resisting agent, mortar, concrete tissue have been improved, obtained waterproof effect preferably, be widely used in mine construction at present, in civil engineering and the underground engineering construction.But find that through for many years engineering practice the simple iron(ic) chloride water-resisting agent that adopts remains following weak point: 1) influenced by material purity bigger for its performance.2) the contraction ratio index does not still satisfy requirement of engineering, also can run counter to desire sometimes, makes mortar or concrete cracking phenomena occur because of shrinkage is too big, and the cracking with mortar serves as serious especially.3) the iron(ic) chloride water-resisting agent is acid very big fluidised form solution, all brings a lot of troubles for transportation and use.
The objective of the invention is in order to solve cement or the excessive and reasonable elimination of concrete shrinkage this critical problem of excessive water and to transport inconvenient problem.
For this reason, the present invention has carried out effective improvement to existing iron(ic) chloride water-resisting agent, thereby a kind of novel impervious reinforcing agent that promptly has the antiseepage effect that reinforced effects is arranged again is provided.
To the effect that of the present invention: add calcium sulfate and zeolite in original iron(ic) chloride water-resisting agent, the mechanism of action that adds calcium sulfate is, allow it with cement in calcium aluminate effect generation calcium sulphoaluminate, its reaction formula is:
3CaOAL
2O
3·6H
2O+3CaSO
4+26H
2O
＝3CaO·AL
2O
3·3CaSO
4·32H
2O
(trithiophenol salt type aquation calcium sulphoaluminate)
Owing to contain 32 crystal water in the resultant of reaction trithiophenol salt type aquation calcium sulphoaluminate, bigger volumetric expansion can take place in mortar or concrete, this swell increment just in time is used for offsetting mortar or concrete volumetric shrinkage, therefore can avoid mortar or concrete because volumetric shrinkage can not get compensating the appearance of the cracking phenomena that is caused.In addition, be spicule, be easy to insert Fe(OH) owing to generate the calcium sulphoaluminate crystal
2And Fe(OH)
3In the colloid, thereby also can increase concrete degree of compactness.And the zeolite of adding some amount, its mechanism of action then is to utilize its very strong characteristic of absorbing power, absorbs the excessive water that cement is secreted away with it, thereby avoids forming fine bleeding passage, also can play the antiseepage enhancement.
This shows, impervious reinforcing agent provided by the present invention, mortar and concrete contraction ratio have been reduced, increased density, reduced free-water, eliminated the passage of infiltration water, improved impermeability, thereby solved mortar or concrete seepage and excessive this critical problem of cracking that causes of shrinkage because of free-water.Moreover, because impervious toughener provided by the present invention is a kind of solid packing, problems such as transportation inconvenience have also been solved.But in concrete or Steel Concrete, use the not only density of this impervious reinforcing agent, enhancing, but also protection against corrosion, antifreeze, and can be through living the impact of higher hydraulic pressure.To obtain tangible economic benefit for mine production, covil construction, underground engineering construction etc.
Novel impervious reinforcing agent provided by the present invention can make contraction ratio by original 6 * 10
-4Be reduced to 2 * 10
-4, reinforced effects can improve cement No. 60～No. 100, and the antiseepage index can reach minimum B＞40 that are, also can save the cement more than 15%.
Embodiment:
One, chooses raw material: 1, iron(ic) chloride 2, calcium sulfate 3, zeolite
Two, preparation method: 1, ratio: iron(ic) chloride: calcium sulfate: zeolite is 1: 0.5: 1
2, with three kinds of raw materials mechanically mixing at normal temperatures, raw material can be incorporated in the working concrete behind the mixing.
Three, main performance index:
| Performance index | Resistance to compression (28 days) | Anti-folding (28 days) | Impervious |
| Add calcium sulfate and zeolite | 547kg/cm 2 | 75kg/cm 2 | Schwellenwert B＞40 |
| Do not add calcium sulfate and zeolite | 489kg/cm 2 | 68kg/cm 2 | Maximum B＞40 |
Claims (2)
1, a kind of impervious reinforcing agent that contains iron(ic) chloride is characterized in that adding calcium sulfate and zeolite in the iron(ic) chloride water-resisting agent.
2, according to the described impervious reinforcing agent of claim 1, it is characterized in that iron(ic) chloride: calcium sulfate: zeolite is preferably 1: 0.5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85103386A CN85103386B (en) | 1985-04-20 | 1985-04-20 | Highly effective and impervious reinforcing agent used for mortar or concret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85103386A CN85103386B (en) | 1985-04-20 | 1985-04-20 | Highly effective and impervious reinforcing agent used for mortar or concret |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85103386A CN85103386A (en) | 1986-10-15 |
| CN85103386B true CN85103386B (en) | 1988-07-06 |
Family
ID=4793152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85103386A Expired CN85103386B (en) | 1985-04-20 | 1985-04-20 | Highly effective and impervious reinforcing agent used for mortar or concret |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85103386B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090596C (en) * | 1999-08-20 | 2002-09-11 | 胡一平 | Trace-silicon high-effect cement mortar water-proofing agent |
-
1985
- 1985-04-20 CN CN85103386A patent/CN85103386B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85103386A (en) | 1986-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4350533A (en) | High early strength cement | |
| CN102690077B (en) | Anticorrosion expansion compacting agent composition and preparation method thereof | |
| US5527388A (en) | Corrosion inhibiting formulations with calcium nitrite | |
| US5624489A (en) | Conversion-preventing additive for high alumina cement products | |
| KR20070067336A (en) | Fiber reinforced earthquake proof mortar and self leveling using oyster shells on the beach | |
| CN1982254B (en) | Antiseptic concrete air-tight agent composition and its production | |
| KR102026284B1 (en) | the polymer waterproof agent for repairing concrete crack and the sonstruction method of waterproofing structure using the same | |
| CN110078457A (en) | A kind of groundwork firming agent for soft soil prepared using industrial residue | |
| CN110510971A (en) | One kind exempting from calcined phosphogypsum adhesive mortar and preparation method thereof | |
| US3816147A (en) | Light-weight high-strength cement compositions using hydrolyzed organic material | |
| KR100654095B1 (en) | Chloride-shielding cement for marine concrete and its composition | |
| KR101149343B1 (en) | Composition of slow setting cement | |
| KR100975358B1 (en) | Sea structure composite including eco-friendly artificial fishing reef for reducing carbon dioxide using anti-salinity cement and sea structure composite manufactured by this | |
| CN1315971C (en) | High performance cement-base sealing up leading stoppage material | |
| CN107021706B (en) | Self-waterproof concrete | |
| CN85103386B (en) | Highly effective and impervious reinforcing agent used for mortar or concret | |
| FI65984B (en) | FOERFARANDE FOER FRAMSTAELLNING AV ETT LAEMPLIGT BINDEMEDEL FOR LAETTFLYTANDE BETONG | |
| CN102464474A (en) | Waterproof material | |
| EP1680376B1 (en) | Accelerator for hydraulic binder | |
| CN112390577A (en) | Alkali-resistant pavement brick prepared from construction waste and preparation process thereof | |
| CN109776009A (en) | One kind is exempted to calcine complex mineral swelling agent | |
| CN1107125A (en) | Early strengthening agent for concrete | |
| CN1095450C (en) | Activating agent for powdered coal ash concrete | |
| CN110683823B (en) | Salt lake salt pan anti-seepage agent and preparation and construction method thereof | |
| US3087825A (en) | Corrosion-resistant cementitious mineral building materials and method of productionof the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| 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 |