The R-E-D Blog

It is reported (ARIPPA June 2019) that there are over 770 identified coal refuse piles covering 8,300 acres and containing more than 220...

Did you know that in 2018, the EPA reported that approximately 7.6 million tons of glass were landfilled [1]! Sadly, this annual number...

Silica fume, ground granulated blast furnace slag (GGBFS), metakaolin, ground glass pozzolan, and fly ash are supplementary cementitious...

What is Fly Ash? Fly ash is a coal combustion byproduct. It is collected via bag house filtration equipment or electrostatic...

What is kaolin? Kaolin or kaolinite clay is a layered dioctahedral phyllosilicate clay that occurs naturally when minerals like feldspar...

Supplementary Cementitious Materials, or SCMs, are materials that are added to, or replacing a portion of portland cement and blended...

As with any dangerous or potentially dangerous chemical, proper safety precautions and measures should be taken before and during the...

Overview Aside from having a higher density, often between 30 and 50 lbs/ft3, densified silica fume has similar technical performance...