Displaying items by tag: CEMFREE

UK: Construction company Milestone Infrastructure used cement-free concrete supplied by DB Group subsidiary Cemfree to lay kerbs for a new road in Cambridge, Cambridgeshire. The work consisted of a road widening in order to create new cycle and bus lanes with floating bus stops and an innovative cycle roundabout. Milestone Infrastructure built 13,000m² of new paths and cycle lanes, diverted 74 underground utilities and resurfaced 18,000m² of road. The project begun in February 2020.

UK: An installation consisting of reduced-CO₂ walls made with cement-free materials has won the Royal Horticultural Society’s People’s Choice Award, the Silver judge’s award and a Young Gardener of the Year nomination at the Tatton Park Flower Show in Cheshire. DB Group subsidiary Cemfree supplied its cement-free mortar for the garden’s structure, while PPG subsidiary CCP supplied its cement-free Greenbloc concrete blocks. The installation is the first time both materials have been used in combination.

Commercial manager Adam Gittins said “Finding ways to help the construction industry tackle CO₂ emissions is an important challenge.” He added “Highly visible community projects like this are helping get the word out about climate change.”

UK: CemFree cement-free concrete has been applied volumetrically for the first time in a 52m3 repair to the Woodford West Viaduct on the M25 London ordbital motorway in Essex. The reason behind the choice of method was the unavailability of batching plants at night, which was the only time that a team of Jackson, DB Group and Axtell employees working on behalf of Connect Plus were permitted to perform the work on the UK’s busiest road. CemFree said that 9.4t of CO2 emissions were cut by comparison to the same project undertaken with ordinary Portland cement (OPC). Jackson director of highways Paul Watson said, “We hope this marks a turning point on the M25 and the wider Highways sector for using low carbon alternatives.”

Cemfree uses 95% ground granulated blast furnace slag (GGBFS) and a 5% alkali activator, removing the need for cement. This gave CO2 emissions of 114kg/t, which the company says is 77% lower than conventional (OPC).

UK: Mick George Concrete has announced a contract with Highways England for the construction of ancillary features such as kerbs, drains and mass fill usages on the A14 between Huntingdon and Cambridge in early 2020. The project will utilise 500m3 of Cemfree concrete from DB Group (Holdings) ltd., which can be produced releasing just 20% of the CO₂ of ordinary Portland cement (OPC). The value of the project, to which Mick George Concrete has dedicated a 100t silo for Cemfree storage, is Euro1.76bn.