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The R-E-D Blog

Fly Ash in Concrete

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

Metakaolin in Concrete

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

What is Metakaolin?

Metakaolin is an off-white manufactured pozzolanic mineral admixture that considerably increases many functioning features of...

What is SILREF?

SILREF is a product that is used in high strength heat brick and other refractory applications. SILREF is a very fine silicon metal...

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