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Aggregate Industries help customer win tender

SuperFlex surface course solution

Crack-resisting SuperFlex surface course solution helps secure contract for civil engineering firm Calco

AGGREGATE Industries have helped a customer win a tender with their crack-resisting asphalt. The project entailed overlaying an existing concrete trailer yard in Wigan with a flexible surface course. Several contractors were invited to tender for the business, including civil engineering firm James Callaghan Sons & Co Ltd (Calco).

The project requirements initially called for 40mm of stone-mastic asphalt (SMA) to be used in order to keep costs under control. However, Calco had concerns about a 40mm layer of SMA being a sufficient depth to avoid any potential delamination between the concrete and the newly laid surfacing.

The firm therefore consulted with Aggregate Industries’ specialist asphalt division, which identified a solution that would satisfy the client’s budget for the completed works, whilst also delivering a quality finish.

Reviewing the project requirements in detail, the asphalt team concluded that Aggregate Industries’ SuperFlex, a highly durable surface course, would be the best option to reduce the risk of reflective cracking and provide the high levels of durability required for a busy car park.

Calco refined the proposal of works to also include using a spray jet paving machine which would achieve a better bond via a continuous application of a hot, bituminous tack coat as the SuperFlex was laid in a single layer directly on to the concrete.

Works commenced in February 2018, with Aggregate Industries delivering 770 tonnes of SuperFlex AC10 surface course to site on schedule. The project was completed in two phases and handed over in April 2018.

Calco director Andrew Callaghan commented: ‘The technical support and advice we received at the tender stage from Aggregate Industries was excellent and proved instrumental in securing the job. From our client’s perspective, we had looked at potential problems and, in collaboration with Aggregate Industries, produced an improved specification which was still within the budgets of the project.

‘I visited site recently and our client is very pleased with how the surface is performing and all the feedback has been very positive. We are currently discussing undertaking additional works on site and I would have no hesitation in using SuperFlex on future projects of a similar nature.’

Charlotte O’Connell, territory sales manager at Aggregate Industries, added: ‘SuperFlex is an ideal material when overlaying concrete, due to its enhanced elastic properties provided by the polymer-modified binder.

‘Within the Asphalt team, we are always at the ready to provide hands-on product advice and technical expertise in any way we can. In this case, we’re delighted to have helped one of our valued customers win new business and we can certainly say with pride that SuperFlex helped them secure the tender.’

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