How To: Concrete Surface Profile Creation

Описание: Concrete surface profile (CSP) specifies a surface’s required texture. It’s an attempt to quantify how rough a surface must be to act as a receptive substrate for a given coating. In the context of thin-mil systems, +/-50 mils or less, a CSP#2 (diamond grind) and CSP#3 (shotblast) are most common. These numbers originate from an International Concrete Repair Institute (ICRI) standard. To make it simple, ICRI produces urethane swatches that reproduce what each CSP number represents. It’s an easy way to verify a concrete surface profile matches a coating system’s specified CSP.

The video starts with a floor that has a coating mock-up which needs to be removed. The mock-up was done to provide a sample of the floor’s look and performance. The bulk is removed using a PCD. Following this is a 25/30 two segment diamond. After the surface has been vacuumed, a shotblaster is used to demonstrate a true CSP#3 and a CSP#2 that’s been de-dusted. What follows is a comparison of the two profiles. Being that the spec documents requested a CSP #2/3 (there is no such thing) the contractor chose to provide a CSP#3.
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