CN101722580A - Method for enhancing concrete strength - Google Patents
Method for enhancing concrete strength Download PDFInfo
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- CN101722580A CN101722580A CN200910273081A CN200910273081A CN101722580A CN 101722580 A CN101722580 A CN 101722580A CN 200910273081 A CN200910273081 A CN 200910273081A CN 200910273081 A CN200910273081 A CN 200910273081A CN 101722580 A CN101722580 A CN 101722580A
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- slurry
- concrete
- earth
- soluble glass
- strength
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Abstract
The invention provides a method for enhancing concrete strength, which is characterized by adding soluble glass slurry into concrete in the stirring process. As the soluble glass can generate earth rubber under the action of an acidic curing agent, soluble glass-calcium chloride slurry and soluble glass-sodium aluminate slurry are used usually. The slurry of the soluble glass is also inorganic slurry which has no toxicity, low cost and good groutability and occupies the first place in chemical grouting used currently. The chemical stabilization enhances the strength of the concrete and improves the utilization efficiency of the concrete.
Description
Technical field
The present invention relates to building field, especially strengthen the concrete strength method.
Background technology
Mix the uneven of earth road surface, it is many constant to have brought for our daily life, because too much wearing and tearing make ground no longer firm, in order to strengthen the antiwear property of highway, the compression strength of mixing earth will be increased to certain scope, and make the use on ground have persistence, stability.
Summary of the invention
The objective of the invention is in order to strengthen resistance to compression, the antiwear property on mixed earth road surface, a kind of enhancing concrete strength method of special proposition.
Technical scheme of the present invention for this reason is that enhancing concrete strength method comprises the mixed method of mixing earth, it is characterized in that: add the waterglass slurries in the whipping process that mixes earth.
Beneficial effect:
The present invention be because waterglass can produce earth rubber under the acid curing agent effect, and waterglass commonly used → calcium chloride slurries and waterglass-aluminic acid are received slurries; The slurries of waterglass also be inorganic be slurries, nontoxic, cheap, concrete castability is good, accounts for the first place of the chemical grouting of present use, with this chemical stabilization the intensity of mixing earth is got a promotion, improve the utilization ratio of mixing earth.
The specific embodiment
Strengthen the concrete strength method, promptly in the whipping process that mixes earth, add the waterglass slurries.
Mix earth and form and is made up of cement, water, sand and stone, Shui Heshui blendes together that husky and stone is the aggregate of mixed earth for cement mortar.Cement mortar fill the space of sand and be wrapped in the sand particle around and become mortar, mortar is filled the space of stone again and a stone clad.In presclerotic mixed earth mixture, cement mortar is lubricate between sand, stone, makes to mix the earth mixture and have the required flowability of construction.Mix the aggregate in the earth, generally not with the cement mortar chemically reactive, its effect is to constitute the skeleton that mixes earth, reduces the contraction that hardening of cement produces and can reduce cost.In mixing the composition of earth, aggregate generally accounts for 70%～80% of the volume that mixes the mud Gui, and the about 20%`30% of cement stone wherein still contains little air.
Mix the earth pressurized and have three kinds of situations: together aggregate destroys earlier, and the 2nd, cement stone destroys earlier, and the 3rd, cement stone and aggregate interface are destroyed earlier.First kind of situation can not take place, and generally all is higher than cement strength because preparation mixes the aggregate intensity of earth, prepares rationally if second kind of situation mixed earth, and guarantees construction quality, can not take place yet; The third situation possibility maximum promptly destroys occurring at first on the interface of cement stone and aggregate (referring to coarse aggregate).
Research in recent years is verified, even before mixed earth is subjected to load, has had the crack on coarse aggregate and the cement interface in fact.The crack comprises the water crack of the bleeding formation that mixes the earth mixture, the crack, interface that forms between cement, sand etc.These cracks be about at load under 30% or the high slightly situation of ultimate load be keep stablizing constant, load increases again, the length in crack, width and quantity all begin to increase, when load 70% ~ 90% of the load that reaches capacity, fracture propagation is in mortar, and the crack is interconnected to form continuous through crack.This stage is that the crack is expanded period fast, if load continues, prolongs in time and promptly destroys.
From the mixed earth test specimen section of stress destruction as can be seen, destroy the interface that occurs in coarse aggregate and cement stone really, thereby what determine concrete strength should be the bond strength at cement stone and coarse aggregate interface.And bond strength is decided by cement strength.Cement strength is higher, and cement stone and coarse aggregate boundary strength are also higher, and cement strength then depends on the strength of cement and the ratio of mud.Under the identical situation of material condition, concrete strength is regular decline with the increase of the ratio of mud.
The present invention is because waterglass Na
2O.nsIO
2Can produce earth rubber under the acid curing agent effect, waterglass commonly used → calcium chloride slurries and waterglass-aluminic acid are received slurries; The slurries of waterglass also be inorganic be slurries, nontoxic, cheap, concrete castability is good, accounts for the first place of the chemical grouting of present use, with this chemical stabilization the intensity of mixing earth is got a promotion, improve the utilization ratio of mixing earth.
Claims (1)
1. strengthen the concrete strength method, comprise the mixed method of mixing earth, it is characterized in that: in the whipping process that mixes earth, add the waterglass slurries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910273081A CN101722580A (en) | 2009-12-04 | 2009-12-04 | Method for enhancing concrete strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910273081A CN101722580A (en) | 2009-12-04 | 2009-12-04 | Method for enhancing concrete strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101722580A true CN101722580A (en) | 2010-06-09 |
Family
ID=42444418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910273081A Pending CN101722580A (en) | 2009-12-04 | 2009-12-04 | Method for enhancing concrete strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101722580A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230243A (en) * | 2014-09-12 | 2014-12-24 | 中南大学 | Non-fired and non-steamed tailing brick and preparation method thereof |
| CN107162559A (en) * | 2017-06-16 | 2017-09-15 | 成都市容德建筑劳务有限公司 | A kind of mixed mud of heat-insulating |
-
2009
- 2009-12-04 CN CN200910273081A patent/CN101722580A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230243A (en) * | 2014-09-12 | 2014-12-24 | 中南大学 | Non-fired and non-steamed tailing brick and preparation method thereof |
| CN104230243B (en) * | 2014-09-12 | 2018-02-16 | 中南大学 | A kind of Baking-free and steaming-free tailing brick and preparation method thereof |
| CN107162559A (en) * | 2017-06-16 | 2017-09-15 | 成都市容德建筑劳务有限公司 | A kind of mixed mud of heat-insulating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100609 |