Selecting  Floor Preparation Equipment

Nine Grades of Surface Roughness

CSP1

CSP1-Acid Etched

Acid Etched

CSP5

CSP5-Medium Shotblast

Medium Shotblast

CSP2

CSP2-Grinding

Grinding

CSP6

CSP6-Medium Scarification

Medium Scarification

CSP3

CSP3-Light Shotblast

Light Shotblast

CSP7

CSP7-Heavy Abrasive Blast

Heavy Abrasive Blast

CSP4

CSP4-Light Scarification

Light Scarification

CSP8

CSP8-Scabbled

Scabbled

CSP9

CSP9-Heavy Scarification

Heavy Scarification

The most effective reference tool for determining concrete surfaces profile is the moulded rubber comparator chips, available from the international concrete repair institute. These samples replicate nine grades of surface roughness and designed for direct visual and tactile comparison to the concrete surface in question. There is no definitive text description for the nine grades.

IMPACTS Shotblast machine

CSP2-CSP9

Shotblasting propels steel shot against the concrete surfaces by means of a wheel. The impacts of the shot pulverize concrete and roughen the surface. Shotblasting is a preferred method for cleaning and profiling horizontal surfaces and has same applications as abrasive blasting.

BLAST MACHINE CPS.png

CSP4-CSP6

A scarifier consists of rows of toothed washers assembled on steel rods that are mounted to a rotating steel drum. As the drum spins, the washers strike the surface, fracturing and pulverizing concrete and producing a striated pattern. Scarifier only works on horizontal surfaces.

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CIMAR Floor Scarifier
MACDONALD Scabbler

CSP7-CSP9

Scabblers feature multiple pointed piston heads, pneumatically driven that pound the surface, chipping and crushing it. They produce coarse, irregular surfaces and are often used to demolish high-spot concrete debris.

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CSP4-CSP9

Grinding removes protrusions, surface contaminants and produces a smooth or polished surface, depending on the roughness of the abrading discs. The disc is moved at right angles to the surface and may leave circular patterns or gouges in the surface.

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Klindex Concrete Grinder
CIMAR floor hammer and floor scraper

Hammers with different heads can be fitted for various purposes, such as removing residues or even breaking up concrete or sandstone. Because they are not really designed for removing the concrete surface, a CSP number is not relevant to their operation.

Acid etching of the concrete floor is mainly used for light-duty removal of weakly bonded laitance layer. The acid etching does not remove surface contaminants, which must be removed before the acid etching process.

Diagram of acid wash