Concrete Grain Size

by Anonymous

Q: What is the granule (particle) size of fine powder materials in concrete?

A:Dear Mystery Submitter,

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The fine powder material in concrete is Portland cement. Its particle size varies.

Typically, 15% by mass consists of particles less than 5 μm diameter, and 5% by mass of particles over 45 μm. Retrieved from http://en.wikipedia.org/wiki/Portland_cement.

Best regards,

Alan
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Reference

http://en.wikipedia.org/wiki/Portland_cement

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