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[–] SuperDoobie 0 points 10 points (+10|-0) ago  (edited ago)

This is a interesting photo, do you have any context?

What is the flexural and compressive strength of the samples? Air content? Density? What type of cement and aggregate was used?

What type of acid was used, what quantities and how did the exposure occur?

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[–] killer7 [S] 0 points 10 points (+10|-0) ago 

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[–] SuperDoobie 0 points 6 points (+6|-0) ago  (edited ago)

Thanks!

WOW! Very interesting article. Panels placed over the concrete structures with an acid resistant adhesive is pretty cool.

I was assuming it was mixed in the concrete and poured in place or a tilt wall panel like installation.

Can someone help me with this equation? I do not know how to convert this into PSI.

High strength is achieved: compressive strength 55 N/mm2, flexural strength 10 N/mm2 ® Enhanced durability.

Thanks for posting again, IAF!