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A round-up of some of the concrete industry's latest products and projects

Ready to rock

HumeSpun jacking pipes from Hepworth Concrete have been specified for 3.5km of interceptor sewer on Dwr Cymru Welsh Water's £180M waste water treatment project in Cardiff. The 1.95m bore, 2.5m long pipes will form the central section of the sewer, which will link existing outfalls to a new central treatment plant, and were chosen to limit the environmental impact of laying pipes at depths of up to 22m. Byzack Contractors is expecting to drive the HumeSpun pipes through rock at up to 1m per hour using the Herrenknecht slurry system.

Reader enquiry no 804

Market force

Coatbridge Lanarkshire-based Patersons Quarries is to enter the ready mixed concrete market in the Central Belt of Scotland. Three of the latest versions of Steelfields' Major 60 batching plants are being set up at three separate locations.

Steelfields says these will have new large capacity reverse jet silo exhaust filters, an uprated cement screw design and revised aeration control.

Reader enquiry no 808

Test success

Extensive third party testing has confirmed that Cemflow MC flowable concrete from Cement Technology (Cemtec) complies with the Midland Links Specification Concrete Class 29F requirements, Cemtec says. Tests included flowability at various temperatures and resistivity, to check Cemflow MC's compatibility with electro-chemical techniques such as cathodic protection.

Reader enquiry no 805

Rebar support

The Hardy Chair-Lok available from KKS (Stainless Steel) Ltd is claimed to be a complete rebar support system for concrete slab construction that eliminates the need to pin the reinforcement mat and automatically squares up the bars. Available for both single and double mat applications, Chair- Lok avoids the stability problems associated with conventional chairs thanks to its locking caps, KKS claims.

Reader enquiry no 810

Communication skill

Tecgrout CS has been chosen by Reading-based contractor Ballast Wilshier for baseplate grouting on telecommunication sites for the mobile phone network. Manufacturer Tecroc says Tecgrout CS is high strength non-shrink free-flowing grout which gives a void-free fill of the bases.

Reader enquiry no 809

Ten year testimony

The Concrete Advisory Service is celebrating 10 years as a wholly owned subsidiary of the Concrete Society.

Previously part of the now-defunct Cement & Concrete Association and funded entirely by the UK cement industry, the Service is now a broad-based independent service deriving its income from membership subscriptions and site and office visit fees.

Over the last decade all enquires received have been logged and analysed, and show a 74%: 26% split between requests for information and complaints about problems and defects.

Reader enquiry no 806

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