Agree with Carl-try a 70(you may need to go lower)(it looks like hydraulic cement ) metal with a flexible spacer between the metal and the pad driver.If you don't use a planetary machine. This way the diamond can follow the contour of the floor .
 I wouldn't use acid-



On Fri, Apr 3, 2015 at 8:36 AM, cpstaples <cpstaples@msn.com> wrote:
sand the area with metal bonds first to make sure there is terrazzo under there and it's not just a concrete patch


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-------- Original message --------
From: Blain Haeg
Date:04/03/2015 8:25 AM (GMT-05:00)
To: sccpartners@stoneandtilepros.simplelists.com
Subject: Remove excess concrete/mortar from Terrazzo

I'm looking for your preferred method and guidance to remove concrete from a Terrazzo floor. The floor was installed in the 60's. Customer is doing a renovation and removed some cabinets. In the attached pictures, you'll see the buildup in the lighter colored areas where these cabinets were. Acid? Metal Grinding? Combination? Other? Thanks for your input.
Blain Haeg
Gold Standard Floor Care
512.257.3070 office
512.750.1242 cell
blain@goldstandardfloorcare.com
www.GoldStandardFloorCare.com

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