CN1176038C - Super retarder used for delaying setting time of cement stable road surface base material - Google Patents
Super retarder used for delaying setting time of cement stable road surface base material Download PDFInfo
- Publication number
- CN1176038C CN1176038C CNB021477310A CN02147731A CN1176038C CN 1176038 C CN1176038 C CN 1176038C CN B021477310 A CNB021477310 A CN B021477310A CN 02147731 A CN02147731 A CN 02147731A CN 1176038 C CN1176038 C CN 1176038C
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- CN
- China
- Prior art keywords
- super
- cement
- weight
- road surface
- retarder
- 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 - Fee Related
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a super-retarding agent (code name: SRA) capable of greatly prolonging the delayed forming time of a cement stabilization type road surface base layer material and a using method thereof. The super-retarding agent is composed of 90 to 95% by weight of sucrose and 5 to 10% by weight of arbitrary one substance or a mixture of a plurality of lignin, wooden-calcium, monosaccharide and sugar calcium, wherein the sum of the weight percentage of all the components is equal to 100%. 0.04 to 0.06% by weight of cement as reference of SRA is added in a cement stabilization type road surface base layer mixture, so the delayed forming time of the mixture can be prolonged more than 6 hours, and the construction requirement of the cement stabilization type road surface base layer material can be completely satisfied. SPA is easy to be dissolved in water, so SRA can be firstly dissolved in water and is added in the mixture by the mixing water, and the problem that the adding uniformity of an admixture is difficult to guarantee is solved.
Description
Technical field
The present invention relates to a kind of super-retarder that can prolong the molding time that cement stabilizing gathers materials significantly.Be specifically related to be used to prolong the super-retarder of cement stabilized type road surface base layer material molding time.
Background technology
In the cement stabilized type road surface base layer material construction process, compound can not be oversize from blunge to the time of lag of rolling the end of a period." highway road surface construction technique normalizing " JTJ034-20003.1.7 of the Ministry of Communications (8) regulation adopts when concentrating the plant mixing method construction, and can not surpass 2h time of lag.Because along with the prolongation of time, the intensity of cement stabilized type road surface base layer material can obviously reduce thereupon, can have influence on the bearing capacity and the working life on road surface.But compound is short to the time of lag of rolling the end of a period from blunge, and the construction organization difficulty is big, at present, the method that extensively adopts is to add retardant such as wooden calcium, sugared calcium to prolong time of lag both at home and abroad, but incorporation is big, and cost is too high, and it is even to be difficult for mix.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of super-retarder (code name SRA) that is used to prolong cement stabilized type road surface base layer material molding time is provided, this super-retarder can prolong the molding time that cement stabilizing gathers materials significantly, solves the problem that cement stabilized type road surface base layer material time of lag is short, construction organization is difficult.
Realize the super-retarder that is used to prolong cement stabilized type road surface base layer material molding time of the object of the invention, by the sucrose of weight 90%～95% and weight 5%～10% be selected from xylogen, wooden calcium, monose, the sugared calcium any material or in them multiple mixture form, its each composition weight percentage sum is 100%.
The application method of described super-retarder SRA is that super-retarder is joined in the cement stabilized base course compound with 0.04%～0.06% of cement weight.
The application method of described super-retarder, be that SRA and water are made solution with weight at 1: 1,0.08%～0.12% amount with cement weight, 1: 1 the SRA aqueous solution of making is joined in the mixing water, this mixing water joined make uniform cement stabilized base course compound in the compound, be used for paving of sub-surface.
Super-retarder of the present invention is a kind of material soluble in water, according to described application method, the delay in forming time of base material can be extended to more than the 6h, and every square metre of sub-surface only increases about 0.1 yuan of material cost, is to solve the too short economical and effective method of cement stabilized type road surface base layer material delay in forming time.Use SRA and can effectively solve the problem that cement stabilized type road surface base layer material delay in forming time is short, construction organization is difficult.
This SRA also can be used as the Cement Concrete retardant.
Embodiment
The formulation Example of super-retarder of the present invention
Embodiment 5
In the cement stabilized grading crushed stones of cement mixing content 5%, mix postpone moulding 6h behind the super-retarder of embodiment 1 of cement weight 0.06% after, the loss of strength rate be 7.06% postpone moulding 9h after, the loss of strength rate is 1 .4%.
After the cement stabilized grading crushed stones that does not add the cement mixing content 5% of SRA postponed moulding 4h, the loss of strength rate was 20.4%, and the loss of strength rate is 28.3% behind the 6h; After postponing moulding 9h, the loss of strength rate is 39.9%.
Mix SRA loss of strength rate and reduce significantly, delay in forming time reaches 9h loss of strength rate not too.
Embodiment 6
Mix the super-retarder of the embodiment 3 of cement weight 0.05% in the natural gravel of the cement stabilizing of cement mixing content 5.5%, behind the delay moulding 4h, the loss of strength rate is 4.19%, and 8h loss of strength rate is 18.0%; Postpone moulding 12h, the loss of strength rate is 34.7%.
And do not add the cement Stability Gravel of SRA, and postponing moulding 4h, the loss of strength rate is 17.2%, 8h loss of strength rate is 29.6%; 12h loss of strength rate is 51.8%.
SRA extends to 6h with the delay in forming time of cement Stability Gravel.
Claims (3)
1, a kind of super-retarder that is used to prolong cement stabilized type road surface base layer material molding time, it is characterized in that by the sucrose of weight 90%～95% and weight 5%～10% be selected from xylogen, wooden calcium, monose, the sugared calcium any material or in them multiple mixture form, its each composition weight percentage sum is 100%.
2, the application method of the described super-retarder of claim 1 is characterized in that super-retarder is joined in the cement stabilized base course compound with 0.04%～0.06% of cement weight.
3, the application method of super-retarder as claimed in claim 2, it is characterized in that super-retarder and water are made solution with weight at 1: 1,0.08%～0.12% amount with cement weight, 1: 1 the super-retarder aqueous solution of making is joined in the mixing water, this mixing water joined make uniform cement stabilized base course compound in the compound, be used for paving of sub-surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021477310A CN1176038C (en) | 2002-11-26 | 2002-11-26 | Super retarder used for delaying setting time of cement stable road surface base material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021477310A CN1176038C (en) | 2002-11-26 | 2002-11-26 | Super retarder used for delaying setting time of cement stable road surface base material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1410382A CN1410382A (en) | 2003-04-16 |
| CN1176038C true CN1176038C (en) | 2004-11-17 |
Family
ID=4751261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021477310A Expired - Fee Related CN1176038C (en) | 2002-11-26 | 2002-11-26 | Super retarder used for delaying setting time of cement stable road surface base material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1176038C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348529C (en) * | 2005-03-15 | 2007-11-14 | 同济大学 | Super-slowly coagulant adaptive to variaty concrete water reducers and prepn. thereof |
| CN100395206C (en) * | 2005-03-15 | 2008-06-18 | 同济大学 | Super-slowly coagulating water reducer of concrete and its prepn. |
| EP2559675A1 (en) * | 2011-08-16 | 2013-02-20 | Sika Technology AG | Enzymatically inverted saccharose as dispersing agent |
| CN103601417B (en) * | 2013-11-15 | 2015-05-13 | 江苏百瑞吉新材料有限公司 | Super retarder |
| CN103922796B (en) * | 2014-02-28 | 2016-02-17 | 招商局重庆交通科研设计院有限公司 | A kind of environmental protection low-cost concrete dew stone agent and construction technology thereof |
| CN106977119B (en) * | 2017-04-18 | 2020-05-05 | 武汉理工大学 | Special cement for stabilizing steel slag sulphoaluminate-based intumescent base layer and preparation method thereof |
| CN110316993A (en) * | 2019-07-10 | 2019-10-11 | 河南省光大路桥工程有限公司 | A kind of retarder of cement stabilized macadam |
| CN110714382B (en) * | 2019-10-16 | 2021-11-23 | 北京城建华晟交通建设有限公司 | Road base construction method for cement stabilized macadam mixture in high-temperature season |
-
2002
- 2002-11-26 CN CNB021477310A patent/CN1176038C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1410382A (en) | 2003-04-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041117 |