Research Data from Natural Resources Canada Update Understanding of Civil Engineering

摘要

2011 JUL 6 - (VerticalNews.com) -- According to the authors of a study fromrnOttawa, Canada, "Sidewalk sections were cast in fall 2002 with three concrete mixtures thatrnconsisted of a control concrete, a concrete mixture incorporating 25% fly ash, and a concreternmixture made with a ternary blended cement (fly ash and silica fume). The curing practicesrnconsisted of using curing compound and wet burlap."