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Delta cement plant paving the way forward
Delta’s Lehigh Hanson cement plant is helping to reduce carbon emissions with an innovative new form of cement called Contempra.
Launched two years ago, Contempra results in 10 per cent lower CO2 emissions and is quickly becoming the preferred standard for new concrete construction projects in B.C.
The new cement type now accounts for nearly 50 per cent of the domestic cement consumed in the province, and that demand is growing according to the Cement Association of Canada.
By converting to Contempra-based concrete, more than 23,000 tonnes of greenhouse gasses have been taken out of the atmosphere annualy, the equivalent to saving 9,760,000 litres of gasoline or not burning 9,800 tonnes of coal.
“We are delighted with the market’s enthusiastic response and with the tremendous strides… Lehigh Hanson [has] made in establishing this lower carbon cement as the cement of choice in British Columbia,” said Michael McSweeney, President and CEO of the Cement Association of Canada.
The cement is made with up to 15 per cent limestone, rather than with the five per cent as is the case for regular Portland cement, reducing the amount of energy and greenhouse gas emissions required to manufacture it. The new cement produces concrete with the same level of strength and durability as concrete produced with regular Portland cement.
Contempra further reduces the environmental footprint of concrete structures, which, according to life cycle assessment studies conducted by the Massachusetts Institute of Technology and the University of British Columbia, is already lower than that of those constructed with other building materials, thanks to concrete’s durability and the energy efficiency benefits of its thermal mass.
Among the many Contempra projects already completed or underway in B.C. are the Arthur Erickson Building, the Wall Center False Creek Development and ONNI’s Evelyn master-planned community, all in Vancouver, as well as a multitude of condominium, commercial and institutional projects throughout the province.