Eden Energy Ltd (Eden) announced commencement of the first field trials
in the United States for a new concrete additive technology that adds super
strength and performance to concrete but with very little extra weight.
The Company’s award-winning EdenCrete500 is a carbon-enriched concrete
additive technology that can potentially generate economic benefits by reducing
the volume of concrete required; environmental benefits are also delivered from
the lower consumption of cement with global cement production accounting for
around 5% of the world’s total annual greenhouse gas emissions. EdenCrete500 also
won the Australian Civil Contractors Federation’s 2014 Environment Award in
EdenCrete500 concrete additive is formulated to deliver several
advantages to concrete including higher ultimate tensile and compressive
strengths; improved abrasion resistance; reduced tendency for corrosion of
steel reinforcement; improved concrete workability and effectiveness of
water-reducer; and reduced cracks from concrete shrinkage. Laboratory tests
prove the EdenCrete500 admixture can increase the compressive strength of cement
paste by up to 27% and tensile strength by up to 14%.
Eden’s US subsidiary, Hythane Company has commenced the first EdenCrete500
enriched concrete field trials involving a full-scale concrete pour at Denver, Colorado
in collaboration with Metro Mix, a US-based commercial concrete company.
Eden Energy’s Executive Chairman, Mr Greg Solomon explained that the structures
built for the trial pour comprised of new aggregate storage bins at the Metro
Mix facility, constructed with two truckloads of approximately 20 cubic metres
(about 48,000kg) of concrete.
The new aggregate bins, constructed with mild steel reinforced concrete
walls, half of which were made using EdenCrete500 and the other half using
ordinary concrete, will be used to store hundreds of tonnes of sand, gravel or
crushed rock. Front-end loaders will be frequently moving aggregate in and out
of the bin, making strength and abrasion resistance in the concrete extremely
According to Mr Solomon, the challenging application, combined with Colorado’s
harsh weather, makes the Denver project an ideal first commercial field trial for
the performance-enhanced concrete where its performance against ordinary
concrete can also be assessed.
A number of test cylinders of the same two forms of concrete used in the
trial (including some with embedded steel reinforcing) were also produced for
testing at periodic intervals over the next two months to accurately measure
the relative strengths of each form of concrete as well as the level of
corrosion of the reinforcing steel in each.
Based on the level of success of the tests, and subject to Eden having
first secured US Environmental Protection Authority approval for the commercial
sale of the CNT enriched EdenCrete500, Eden plans to progressively ramp up its
production and commence commercial marketing of EdenCrete500 in the US to a
potentially very large customer base.
Mr Solomon said EdenCrete500 with its higher tensile and compressive
strength is expected to provide an effective solution for use in concrete
beams, elevated slabs and walls. The additive’s improved abrasion resistance
makes it suitable for high traffic applications, such as parking lots and
roads, especially for surfaces that support heavy equipment or where scraping
or snow ploughing would be frequently required, resulting in wear and tear and high
In addition to EdenCrete500, Eden produces several admixtures to enhance
the performance of concrete in a wide range of infrastructure, and coastal and marine
applications. These admixtures are engineered to reduce permeability, improve
concrete durability and resistance to chemical attack, or reduce the tendency
for corrosion of steel reinforcement.
Eden’s suite of concrete admixtures could substantially optimise project
costs by reducing the requirement of steel reinforcement and concrete, lower
frequency of maintenance, and increase service life.