Discarded plastic bottles could one day be used to build stronger, more flexible concrete structures, from sidewalks and street barriers, to buildings and bridges, according to a new study. MIT undergraduate students have found that, by exposing plastic flakes to small, harmless doses of gamma radiation, then pulverizing the flakes into a fine powder, they can mix the plastic with cement paste to produce concrete that is up to 20 percent stronger than conventional concrete.
Lafarge Canada Inc. and Metro Vancouver have reached a three-year agreement that will see drinking water treatment residuals from the Seymour Capilano Filtration Plant be used as a material in cement manufacturing.
The Portland Cement Association (PCA) welcomed U.S. EPA Administrator Scott Pruitt, who outlined his vision for the EPA and addressed regulatory issues of concern to America’s cement manufacturing industry.
The Portland Cement Association (PCA) announced that U.S. cement consumption is on track to see 2.7 percent growth in 2016, making a downward revision of a previous annual growth estimate of 4 percent reported earlier this year.