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Reference to Tender Clarificaitons - MAL/CPA/C/001 - TENDER FOR THE EXCAVATION, STABILISATION & CONSTRUCTION OF 65 APARTMENTS AND 115 CAR SPACES AT TRIQ HANOVER, TRIQ L-IRLANDIZ, TRIQ SAN MARK & TRIQ SANTA LIENA, COSPICUA, MALTA


 Query:

2.5 Rock Bolting and Consolidation:

 Is it possible to avoid the Epoxy Resin the in the first 1m depth of the rock bolts since this material is very thin and seeps easily inside the fissures of the rock, hence there might be a large amount of losses which is difficult to predict and quote in our rate?

 

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Reply:

The anchoring of the bolt can be done with cement based grout instead of epoxy grout, as long as the cement grout is an expanding grout.  The grouting length of the anchor will have to be adjusted according to the type of grout and the grout strength. Apart from this, if this system is implemented a pull-out test for every bolt of 6 tonnes will be requested.