Dear sir
I confused about free silica & quartz silica.can anyone explain and also i need the testing procedure.
my mail id : mnagendran84@gmail.com
hiiii,
siliocn dioxide is known as silica and silica is found in quartz.
quartz is a mineral which will be having other impurities also but its main component is silica, silica mainly consists of silicon dioxide only.
follow the below link that will solve all of your confusion
http://www.cemnet.com/Forum/thread/108968/details-for-high-free-silica,html
Regards, Yathish