Claims
- 1. A curable inorganic dowelling composition for fastening anchor rods in boreholes, consisting essentially of:
- A) 32.5-73% by weight of an inorganic binder comprising:
- a1) finely divided SiO.sub.2 or its mixture with Al.sub.2 O.sub.3, containing at least 5% by weight of SiO.sub.2 ;
- a2) optionally aluminum silicate selected from the group consisting of kaolinite and metakaolinite; and
- a3) a hydraulic binder;
- B) 20-32.5% by weight of a curing agent selected from
- b1) water, and
- b2) an aqueous solution of alkali metal silicate, ammonium silicate, alkali metal oxide, ammonium hydroxide, amorphous silicic acid or any combination thereof;
- C) a curing accelerator selected from a member of the group consisting of CaO, MgO, Alite clinker phase (C.sub.3 S), tricalcium aluminate clinker phase (C.sub.3 A), CaC2; and
- D) a compound selected from the group consisting of a filler, blowing agent and any combination thereof.
- 2. The dowelling composition of claim 1, wherein the hydraulic binder is cement.
- 3. The dowelling composition of claims 1 or 2, wherein the finely divided SiO.sub.2 is amorphous SiO.sub.2.
- 4. A dowelling composition for fastening anchor rods in boreholes consisting essentially of a mixture containing, in the presence of water,
- 2.5% to 5% by weight of kaolinite, metakaolinite or a combination thereof;
- 30.3-68% by weight of a stone-forming inorganic binder selected from the group consisting of finely divided SiO.sub.2 and hydraulic binder;
- 2.5-30% by weight of a curing agent;
- 0.1-5.4% by weight of a curing accelerator selected from a member of the group consisting of CaO, MgO, Alite clinker phase (C.sub.3 S), tricalcium aluminate clinker phase (C.sub.3 A), CaC.sub.2 ; and
- the remainder being selected from the group consisting of a filler, foaming agent and a combination thereof.
- 5. The dowelling composition of claim 4, wherein the hydraulic binder is cement.
- 6. The dowelling composition of claim 4, wherein the finely divided SiO.sub.2 is amorphous SiO.sub.2.
Priority Claims (1)
Number |
Date |
Country |
Kind |
41 00 386.1 |
Jan 1991 |
DEX |
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Parent Case Info
This is a continuation application of Ser. No. 08/208,922, filed Mar. 9, 1994, abandoned, and which in turn is a continuation application of Ser. No. 07/814,148, filed Dec. 30, 1991, abandoned.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
4357167 |
Kellet et al. |
Nov 1982 |
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4640715 |
Heitzmann et al. |
Feb 1987 |
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4935060 |
Dingsoyr |
Jun 1990 |
|
5228913 |
Hinterwaldner et al. |
Jul 1993 |
|
Continuations (2)
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Number |
Date |
Country |
Parent |
208922 |
Mar 1994 |
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Parent |
814148 |
Dec 1991 |
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