Resin system with carbon additive
View Patent ↗The gel time of a grouting system may be controlled by providing a resin component separated by a catalyst component, where a carbon component is included in the catalyst component. The catalyst component may include an inhibitor such as a phenolic compound, and/or the resin component may include a promoter such as an aniline compound.
1. A mine reinforcement grouting system comprising:
a resin component; and
a catalyst component separated from said resin component, said catalyst component comprising (i) a catalyst and (ii) a carbon component,
wherein the carbon component to catalyst ratio is about 0.1-1 to 1000 by weight in the catalyst component.
2. The grouting system of claim 1 , wherein said catalyst component further comprises an inhibitor.
3. The grouting system of claim 1 , wherein said catalyst component further comprises a promoter.
4. The grouting system of claim 1 , wherein said catalyst comprises a free radical generating component.
5. The grouting system of claim 4 , wherein said free radical generating component comprises benzoyl peroxide.
6. The grouting system of claim 2 , wherein said inhibitor comprises a free radical inactivating component.
7. The grouting system of claim 6 , wherein said inhibitor comprises at least one of napthoquinone and hydroquinone.
8. The grouting system of claim 1 , wherein said carbon component comprises carbon black, amorphous carbon and/or graphitic carbon.
9. A method of controlling gel time of a grouting system comprising:
providing (a) a resin component, (b) a catalyst component separated from the resin component; and
adding a carbon component to the catalyst component,
wherein the carbon component to catalyst ratio is about 0.1-1 to 1000 by weight in the catalyst component.
10. The method of claim 9 , wherein the resin component further comprises a promoter.
11. The method of claim 9 , wherein the carbon component is added in an amount whereby the gel time of the grouting system is substantially stable.
12. The method of claim 9 , wherein the carbon component is added in an amount whereby the gel time of the grouting system is substantially increased.
13. The method of claim 9 , wherein the carbon component is added in an amount whereby the gel time of the grouting system is substantially decreased.
14. The method of claim 9 , wherein the catalyst comprises a free radical generating component.
15. The method of claim 14 , wherein the catalyst component comprises an inhibitor comprising a free radical inactivating component.
16. A method of stabilizing the gel time of a resin catalyst grouting system comprising a resin component separated from a catalyst component, wherein the catalyst component comprises (i) a peroxide catalyst that generates free radicals, and (ii) an inhibitor that inactivates free radicals generated by the peroxide catalyst, the improvement comprising:
the catalyst component further comprising a stabilizer capable of further inactivating free radicals generated by the catalyst,
wherein the stabilizer comprises a carbon component, and
wherein the carbon component to catalyst ratio is about 0.1-1 to 1000 by weight in the catalyst component.
17. The method of claim 16 , wherein the resin comprises a promoter of catalytic activity of the catalyst.
18. The method of claim 17 , wherein the promoter comprises an aniline promoter.
19. The method of claim 16 , wherein the inhibitor comprises a phenolic compound.