| 摘要 |
A cross-linkable polyester resin composition for use with a reinforcing element for reinforcing rock and other structures, comprises: (a) from 10 to 45 % of a cross-linkable unsaturated polyester resin, (b) from 40 to 90 % of a filler and (c) from 1 to 15 % of an ethylenically unsaturated monomer copolymerisable with the polyester, the percentages being by weight based on the total weight of (a), (b) and (c), the composition being solid but permitting insertion and rotation of a reinforcing element to cause mixing of the composition with a cross-linking catalyst to form a hard mass. Composition will cold cure when mixed with catalyst. Preferably the monomer has higher flash point than styrene. Advantage of the solid composition is that it does not need to be enclosed within frangible sheath as in the prior art.
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