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QUALITAS This contract covered a wide range of operations including: · Demolition; The site contained just about every problem imaginable, but the extensive pre-contract S.I. had highlighted the vast majority. Although the presence of underground structures was foreseen, their vast nature and volume was not. Some extended to 8 metres below lower ground level, (the site was shelved on two levels), and one slurry mixing vessel resembled an Olympics-sized swimming pool. In total some 12,000m3 of substructure materials were removed, processed, crushed and re-laid. The new access road ran straight through a previously tipped spoil heap containing 6,000m3 of sub-soil contaminated by Japanese Knotweed. A large proportion of this was carted off-site, with the remainder being placed in a Sterile Quarantine Area for experimental chemical treatment. The buildings were varying both in size and nature, and we were able to reclaim 20,000+ bricks, 12,000+ slates/tiles, acres of T & G boarding and 3 medium sized portal framed buildings. The remainder of the hard materials were crushed on site and used in the extensive re-grade. |
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