CN1096996A - Special anchoring cement - Google Patents
Special anchoring cement Download PDFInfo
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- CN1096996A CN1096996A CN 94111661 CN94111661A CN1096996A CN 1096996 A CN1096996 A CN 1096996A CN 94111661 CN94111661 CN 94111661 CN 94111661 A CN94111661 A CN 94111661A CN 1096996 A CN1096996 A CN 1096996A
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- cement
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- anchoring cement
- special anchoring
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Abstract
The invention provides a kind of special anchoring cement that underground works bolt supportings such as mine working, railway, highway, water conservancy tunnel and people's air defense are used that is used for.Contain main components such as calcium sulphoaluminate, calcium aluminum fluoride, Dicalcium Phosphate (Feed Grade), tricalcium silicate, tetracalcium aluminoferrite, free calcium oxide.Have fast coagulate, fast hard, morning is strong, high-strength, the expansion characteristics anchor force is big, steady quality is reliable, is convenient to the processing use.
Description
What the present invention relates to is a kind of special anchoring cement that underground works bolt supportings such as mine working, railway, highway, water conservancy tunnel and people's air defense are used that is used for.
Adopt extraordinary high-early-strength cement to make fixing agent for anchor poles and in China's mine working, tunnel, civil air defense ground engineering's grain bin petrous branch protects, obtained widespread use, received tangible technical economic benefit, but still exist not enough:
1, the main type of using at present of anchoring cement is to be main body with ordinary Portland cement, and other mixes various admixtures (as hardening accelerator, water reducer, accelerating chemicals, swelling agent etc.) and mixes.Adopt the volume of multiple components to be difficult to accurate control, allotment, especially stirring is difficult to uniform mixing, and manufacturing procedure is many, and dust is big, causes the difficult quality guarantee of anchoring cement, and unstable properties influences the effective support control of anchor force and country rock;
2, at present the another kind of anchoring cement that uses be adopt two or more morning strong, double-quick cement mixes, and mixes unevenly but still exist, the processing operation is many, dust is big, quality be cannot say for sure card, performance is also unstable reliable;
3, ore deposit, Xi'an institute develops a kind of bolt cement in recent years, its major ingredient is calcium sulphoaluminate and calcium aluminum fluoride, need not mix any admixture can directly use, overcome preceding two kinds shortcoming, but this cement still has and exists early strength not really high, initial set, the final setting time instability, shortcomings such as the little contraction of volume.
In view of above reason, the objective of the invention is provides a kind of steady quality reliable in order to overcome the deficiency of above-mentioned various products, the intensity height, and pool time is controlled, is convenient to process the special anchoring cement of use.
Mainly contain calcium sulphoaluminate, calcium aluminum fluoride, Dicalcium Phosphate (Feed Grade), tricalcium silicate, tetracalcium aluminoferrite, free calcium oxide in the special anchoring cement of the present invention.
Each component in the above-mentioned anchoring cement (weight part) proportioning:
Calcium sulphoaluminate 10～70
Calcium aluminum fluoride 10～70
Dicalcium Phosphate (Feed Grade) 5～35
Dicalcium Phosphate (Feed Grade) 5～35
Tricalcium silicate 5～50
Tetracalcium aluminoferrite 1～15
Free calcium oxide 1～5
Also have 0～5(weight part in the above-mentioned anchoring cement) contain other mineral of iron powder.
Anchoring cement of the present invention is compared with existing anchoring cement, has following advantage:
1, can be by the cooperation of raw material and grog, sintering, ball milling form, and do not need during use to mix any admixture in addition, are convenient to processing, use;
2, have fast coagulate, fast hard, morning is strong, high-strength, the expansion characteristics anchor force is big, steady quality is reliable;
3, can be widely used in mine working, railway, vcehicular tunnel, people's air defense, the bolt supporting of water conservancy underground works and all kinds of installation work and urgent water blockoff, stoppage engineering.
The Main physical index of special anchoring cement of the present invention sees Table 1, and its Main physical index all is higher than the national sector standard regulation
Table 1:
| Time | Ultimate compression strength (MPa) | Anchor force (KN) | Rate of expansion (%) | Time of coagulation | |
| 0.5h | ≥11 | ≥50 | ≥0.2 | Initial set | ≤3min |
| 1h | ≥16 | Final set | ≤7min | ||
Introduce embodiments of the invention (referring to table 2) below, but protection scope of the present invention is not limited only to the following examples:
Table 2:
Claims (3)
1, special anchoring cement is characterized in that calcium sulphoaluminate, calcium aluminum fluoride, Dicalcium Phosphate (Feed Grade), tricalcium silicate, tetracalcium aluminoferrite, free calcium oxide are arranged in the described anchoring cement.
2, special anchoring cement as claimed in claim 1 is characterized in that the proportioning of each component in the described anchoring cement (weight part):
Calcium sulphoaluminate 10～70
Calcium aluminum fluoride 10～70
Dicalcium Phosphate (Feed Grade) 5～35
Tricalcium silicate 5～50
Tetracalcium aluminoferrite 1～15
Free calcium oxide 1～5
3, special anchoring cement as claimed in claim 1 or 2 is characterized in that in the described cement also having 0～5(weight part) other mineral that contain iron powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111661A CN1064332C (en) | 1994-03-04 | 1994-03-04 | Special anchoring cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111661A CN1064332C (en) | 1994-03-04 | 1994-03-04 | Special anchoring cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1096996A true CN1096996A (en) | 1995-01-04 |
| CN1064332C CN1064332C (en) | 2001-04-11 |
Family
ID=5035505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94111661A Expired - Fee Related CN1064332C (en) | 1994-03-04 | 1994-03-04 | Special anchoring cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064332C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061952C (en) * | 1997-01-08 | 2001-02-14 | 中国建筑材料科学研究院水泥所阳泉联营特种水泥厂 | High-moisture quick-setting mono-slurry |
| CN1315749C (en) * | 2004-09-14 | 2007-05-16 | 中国建筑材料科学研究院 | High strength silicate clinker and its preparing method |
| EP1866260A4 (en) * | 2005-03-24 | 2012-01-25 | Jacques Bertrand | Dry grout composition and capsule for anchoring reinforcing member, dowel or anchor elements |
| CN102795795A (en) * | 2012-08-31 | 2012-11-28 | 黄靖宇 | Method for preparing fluoaluminate cement from fluorine-containing sludge |
| CN103232176A (en) * | 2013-04-19 | 2013-08-07 | 南京工业大学 | High-strength silicate cement clinker and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO158499C (en) * | 1985-09-03 | 1988-09-21 | Elkem As | HYDRAULIC CEMENT SUSPENSION. |
| CN1050860A (en) * | 1989-10-13 | 1991-04-24 | 淄博市临淄水泥厂 | The machine shaft kiln is produced 75 ℃ of oil well cements |
-
1994
- 1994-03-04 CN CN94111661A patent/CN1064332C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061952C (en) * | 1997-01-08 | 2001-02-14 | 中国建筑材料科学研究院水泥所阳泉联营特种水泥厂 | High-moisture quick-setting mono-slurry |
| CN1315749C (en) * | 2004-09-14 | 2007-05-16 | 中国建筑材料科学研究院 | High strength silicate clinker and its preparing method |
| EP1866260A4 (en) * | 2005-03-24 | 2012-01-25 | Jacques Bertrand | Dry grout composition and capsule for anchoring reinforcing member, dowel or anchor elements |
| CN102795795A (en) * | 2012-08-31 | 2012-11-28 | 黄靖宇 | Method for preparing fluoaluminate cement from fluorine-containing sludge |
| CN103232176A (en) * | 2013-04-19 | 2013-08-07 | 南京工业大学 | High-strength silicate cement clinker and preparation method thereof |
| CN103232176B (en) * | 2013-04-19 | 2014-10-29 | 南京工业大学 | High-strength silicate cement clinker and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1064332C (en) | 2001-04-11 |
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