Can Better Concrete Give
Us Better Air?...Yes.
Not many people realize that concrete is the most used man-made product
on earth. Each year, 2.5 billion tons of
new cement is produced and used as a key ingredient to make
concrete. However, for every ton of cement produced,
there a ton of CO2 is generated! This makes concrete a big contributor
to CO2 emissions; more than 5% of the annual
total! More importantly, this creates a big opportunity for CO2
reduction. By using a concrete with a significantly
reduced CO2 footprint, we can all make a bold and measurable step
forward in reducing global warming. If that same
concrete is more durable and higher performance, then we can reduce the
long-term costs of infrastructure.
2X
Green provides twice the durability and up to a 70% reduction in CO2
when compared to standard concretes used
in drainage and underground infrastructure. Clearly, the better
choice.
Why is Durability in Concrete Important...and Can
it Really Be Measured?
Simply speaking, high performance concrete (HPC) is really concrete
that is just much more durable. Durability is
important in concrete because the more durable a concrete, the more
resistant it is to corrosion, and the more
resistant it is to corrosion, the longer it will last.
The US Federal Highway Administration (FHWA)
has been a long-time proponent of HPC for (above-ground) bridges
and highways because of the increased durability. In the highly
corrosive environments of drainage and underground
infrastructure, increased durability ¾ and
therefore longer service life ¾ is
absolutely critical.
The most common measure of concrete durability is the Rapid Chloride
Permeability test (ASTM C-1202). An alternative
measurement method is ACI Life 365. By any measure, 2X Green is a
winner. More than twice as durable than
concretes that are normally specified for drainage and related
applications.
CWR Delivers an Integrated Solution, ‘User-Friendly’
and Affordable Alternative
CWR supplies blended cements that are of consistent mix design,
testing, certification, quality control and technical
support to ensure the concrete solution will meet the asset owner’s
most aggressive performance specifications.
This turn-key alternative avoids the unsustainable approach that
requires each architect, engineer and asset
owner (as well as the local precast and/or ready-mix firm) to become
“expert” in SCM’s, sourcing, mix design, and
testing. Rather, it allows these parties to specify durability,
service life and other performance characteristics that are
relevant to the specific application (e.g., manholes, utility vaults,
bridges, etc.) and do so with the confidence that they
can receive the most durable, green infrastructure from local sources.
CWR delivers results to architects, engineers, asset owners,
governments, precast/ready-mix companies, taxpayers and
the environment.
CWR Delivers the Leading HPC
Technical Team (click here for selected team bios)
CWR has assembled an unparalleled team of industry experts and
engineers led by John Redfern.
This team delivers
decades of expertise in cement, concrete, HPC, SCM procurement and
blending of specialty cements; HPC mix design
for optimal durability; and HPC mix design for optimal GHG reduction
and HPC Performance Specifications.
2XG - Product Information
