Concrete’s
evolvement comes from new materials used, a wider acceptance to recycling,
mixture proportioning, and better durability.
The recent introduction of new concretes such as high performance
concrete (HPC), ultra high performance concrete, and geopolymer
concrete offer many advantages over standard concrete with few disadvantages.
According
to AggregateResearch.com, one of HPC’s benefits is that it contains industrial waste
by-products such as fly ash and silica fume that is not only extremely abundant
but helps to keep it out of landfills.
By using more of these materials, it allows the concrete to be produced
with less Portland cement, which in turn reduces the carbon dioxide emissions
that are released during the production of cement. Not to mention the advantage that the
industry by-products are typically less expensive than cement.
Furthermore
technological advancements continue to improve the longevity of concrete. It is believed that the concrete produced
today will last for hundreds of years not just decades. AggregateResearch.com adds that, “new concretes
have better corrosion resistance, equal or higher compressive and tensile
strengths, higher fire resistance, and rapid curing and strength gain. In
addition, the production and life cycle of these new concretes will reduce
greenhouse gas emissions by as much as 90%.”
P.
Kumar Mehta, a recently retired Professor Emeritus of Civil Engineering at the
University of California, Berkeley, CA, and author of numerous papers on the properties
of concrete and cementitious building materials commented on the emerging
developments in concrete technologies.
He says that, “It is not surprising that many advancements in concrete technology
have occurred as a result of two driving forces...the speed of construction and
durability of concrete.”
Sources:
aggregateresearch.com/articles/19247/Advances-in-new-concrete-technology.aspx
Conco
is a leading supplier of concrete services for the Western United States. We
got our start in the Bay Area in 1959 by offering clients the best value on a
wide range of concrete services and products.
Since that time, we have taken a leading role as one of the top concrete
contractors in the region. We have four regional offices serving California,
Washington, Oregon, Nevada and Colorado.
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