A new concrete manufacturing technique extracts carbon dioxide out of the air, or directly out of industrial exhaust pipes, and turns it into synthetic limestone.
With cement manufacturing responsible for 4% to 8% of the world’s carbon dioxide emissions, this breakthrough could be a significant development in the effort to reduce greenhouse gas. Consider that the pace of construction worldwide has been robust, particularly in China, in recent years. And, cement production worldwide could grow 23% by 2050.
Portland cement is made with limestone that is quarried and then heated to high temperatures, an energy-intensive process that releases huge amounts of carbon dioxide. The new technique, which has already been demonstrated in California, could not only slow the advance of climate change, but actually help to reverse it.
The inventor was inspired by how coral transform minerals in seawater to a shell-like substance. The “low-energy mineralization” technique he developed turns captured CO2 into calcium carbonate, the material synthesized by coral.
Related Stories
Codes and Standards | Jun 29, 2021
Biden China policy may spur more increased U.S. PV manufacturing capacity
Senate bill proposes advanced solar manufacturing production credit.
Codes and Standards | Jun 28, 2021
Local and state building energy performance standards aim to curb climate change
Owners must up the ante on operations and retrofits.
Codes and Standards | Jun 24, 2021
Biden Administration will restore ‘Waters of the U.S.’ protections ended by Trump
Early revision more likely to hold up in court, says legal expert.
Codes and Standards | Jun 23, 2021
Denver unveils renewable heating and cooling plan
City releases roadmap to decarbonizing existing homes and buildings.
Codes and Standards | Jun 22, 2021
Actually, few companies plan to significantly reduce their office footprint
CBRE survey shows that many firms will continue with hybrid work.
Codes and Standards | Jun 21, 2021
Vancouver, B.C., may delay new zero emissions building standards
Building permit delays may postpone new standards by a year.
Codes and Standards | Jun 17, 2021
Buffalo’s parking reform having noticeable impact on development
Elimination of mandatory parking allotments encourages new projects.
Codes and Standards | Jun 16, 2021
Inconsistent building codes make some states more vulnerable to hurricanes
Florida takes top spot for strongest building code in latest IBHS survey.
Codes and Standards | Jun 15, 2021
Growing housing supply gap will worsen affordability crisis
Supply projected to fall 4.5 million units short in 2022.
Codes and Standards | Jun 15, 2021
Florida will allow virtual inspections, building code enforcement, permit issuance
New law will go into effect on July 1, 2021.
