Keltbray commits to earth-friendly concrete

Aaron Morby 3 years ago
Share

Demolition and foundations specialist Keltbray has committed to using new low carbon concrete following trials in London.

Deep anchor pile using EFC concrete at Landsec's Nova site in London Victoria
Deep anchor pile using EFC concrete at Landsec's Nova site in London Victoria

The contractor has struck a deal with supplier Capital Concrete and its key binder supplier Wagners to exclusively use Earth Friendly Concrete in the UK.

Keltbray has committed to use 11,000 cu m of EFC® by the end of June 2021, helping to ensure continued development of low carbon concrete in more critical parts of construction.

The deal comes after Keltbray’s in-house design consultancy Wentworth House Partnership agreed to specify EFC on all of its temporary works projects.

On its Charterhouse Place site, WHP has used EFC® on all temporary works including vault infills, thrust blocks for raking props and wind post foundation bases.

Keltbray is already a certified EFC provider having installed the first-ever pile using Wagners concrete in London earlier in the year.

A 900mm diameter, 25m deep anchor pile was installed at the Keltbray site at Landsec’s Nova East, London Victoria project using Wagners EFC®.

Earth Friendly Concrete

EFC is a product manufactured by Australian firm Wagners and is a zero cement, geopolymer concrete supplied by Capital Concrete in London.

The concrete offers a 50% saving in embodied carbon over and above standard piling mixes.

EFC has all the performance characteristics of Portland cement-based traditional concrete but uses a geopolymer binder system made from the chemical activation of blast furnace slag and fly ash.

Keltbray has been working with leading Forensics Engineer, Royal Academy of Engineering Professor, Peter Robery, from Birmingham University to review of the testing data.

Over the last 10 years, the product has undergone rigorous lab testing and received accreditation to German Standard DIN 206.

This means subject to project-based testing, the product can be considered a fully compliant alternative to conventional materials for both temporary and permanent works.

Keltbray believes the engineering and construction properties of the environmentally friendly concrete are as good, and in some areas better, than normal concrete.

Significant performance advantages include improved durability, lower shrinkage, earlier strength gain, higher flexural tensile strength and increased fire resistance.

Stuart Norman, Managing Director for Piling at Keltbray, said: “We have been using EFC for temporary works elements over the last 10 months with great success.

“EFC is particularly suited for permanent works use within piled foundations, and Professor Robery has been assisting us in the review of the technical data we have.

“Having learned some practical lessons along the way, we are now extremely confident in the performance and durability of EFC and are actively recommending its use for permanent works foundation piles.”

Luke Smith, Managing Director at Capital Concrete, said: “We anticipate this environmentally friendly concrete solution to soon become the construction product of choice for the London market.”

Latest news

McLaren gets green light for 45-storey Leeds tower

Landmark Wellington Square scheme will see 464 flats built with 360,000 sq ft of offices
2 days ago

Heavy rain causes 1.9% construction output fall

Hopes remain undampened of a resi-led recovery this summer
2 days ago

Taziker restruture to return to profitability after £1.2m loss

Founders bought the business back from private equity after last year's loss
2 days ago

£220m London wharf homes scheme approved

285 homes to be built beside protected Albert and Swedish Wharves in Wandsworth
2 days ago

Major project veteran named civils director for Sizewell C

David Speight previously worked on Hinkley, Heathrow and HS2 client teams
2 days ago

Morgan Sindall lands £19m Milton Keynes hospital job

Crane lifts to be carefully co-ordinated to ensure air ambulance remains active
3 days ago

Clancy bolsters civils leadership team

Daniel Tonkin and Simon Hyams join as operation directors of water and infrastructure
3 days ago

Balfour names new project boss for HS2’s super-hub station

Steve O’Sullivan replaces Nigel Russell who was promoted to CEO of Balfour's HS2 ops
3 days ago

Buckingham Group supply chain hit doubles to £256m

Total owed to unsecured creditors soars as surety providers finalise claims
3 days ago

Builders demand an end to police plant bans

Call to suspend all embargoes on moving mobile cranes and large site kit
3 days ago

Green light for £65m Blackpool multiversity campus

Education campus of 350,000 sq ft will be delivered in phases
3 days ago

Vinci signs £138m Sheffield steel forge expansion deal

Sheffield Forgemasters signs landmark contract after two years of pre-construction works
4 days ago

McAlpine hires HS2 programme boss to head defence arm

Armed forces logistics expert Mike Hickson takes role as MD of defence
4 days ago

£200m carbon capture plan for Deeside site

Energy from waste operator enfinium looking to invest in North Wales plant
3 days ago

McAleer & Rushe promotes five staff to contracts directors

Design and build contractor targets £500m revenue next year
4 days ago

Consultant quartet win Government estate upgrade deal

Government Property Agency selects Arcadis, Tetra Tech, AtkinsRéalis and McBains
4 days ago

Resi towers pioneer to transform Liverpool site

Beetham founder Hugh Frost to help develop 1,200 new homes
5 days ago

Construction Manager of the Year crowned

Galliford Try's Barry Kingscote wins coveted prize: Full list of winners
4 days ago

Landsec £250m London terraced office job approved

Skanska tipped for 20-storey Hill House scheme near Fleet Street
5 days ago

Lendlease tops March contracts league

BAM and ISG rank third with big contract wins
4 days ago

Vistry strikes deal with Homes England for 1,000 units

Firm's timber frames factory will supply most of the Midlands houses
4 days ago

Morgan Sindall go-ahead to build 23-storey Salford resi job

Funding deal with CBRE allows latest project on bank of River Irwell to proceed
5 days ago

Unite Students gains planning for London and Bristol schemes

RG Group will build landmark Stratford tower and Freestone Island projects
5 days ago

Rolls-Royce gets go-ahead for 1.1m sq ft expansion in Derby

Major expansion of Raynesway campus planned to met submarine fleet orders
5 days ago

GMI Construction edges back into profit

A year of controlled consolidation helped generate £0.9m profit but cash at bank dropped to £10m
5 days ago

Balfour gets final sign-off for HMP Highland at £209m

Deal struck for delayed Inverness prison after costs rocket
6 days ago

Renew buys bridge maintenance business

Contractor boosts highways division with £5m acquisition
5 days ago

HS2 tests market for £150m mass transit job

2.4km long elevated Automated People Mover to go out to tender in 2026
5 days ago

Cardo completes fourth acquisition in a year

Expanding Welsh building maintenance specialist reaches £170m turnover
6 days ago

Watchdog clears Heidelberg takeover of Mick George

Four quarries and five ready-mix operations to be sold to meet competition concerns
6 days ago

Contractor services