Concrete Clarity Meter (CCM)
QUANTIFY SURFACE QUALITY
The Rhopoint IQ Clarity Meter is used to measure the quality of a reflected image.
DISTINCTNESS OF IMAGE (DOI)
–This device is unique as it is the only hand-held instrument that profiles how light is reflected from a surface.
A common problem associated with coatings and polished materials is haze. Surfaces with haze can be identified by their ‘milky’ finish with a ’shallow’ reflection. This is one of the many important characteristics of our concrete clarity meter.
High haze surface
An orange peel surface will substantially reduce the appearance quality without altering any gloss readings. Our Rhopoint IQ Concrete Clarity Meter with DOI measurement can measure the differences.
Poor DOI surface
– This is an optical effect that is caused by residue on a surface or microscopic textures.
Some symptoms of this that are visible are the apparent milky finish on the surface accompanied by a loss of reflected contrast. Patterns and halos will appear when around high intensity light sources.
Some causes of this could be burnish and polishing marks, resin transfer, fine scratches, lack of refinement and poor cleanliness/surface residue.
|LEVEL||NAME||DISTINCTNESS 0F IMAGE (DOI) GLOSS||IMAGE CLARITY VALUE, %||LEVEL|
|Images of objects being reflected have a flat appearance.||0-9||<10|
|Images of objects being reflected have a matte appearance.||10-39|
|3||Polished||Images of objects being reflected do not have a sharp and crisp appearance but can be easily identified.||40-69|
|Images of objects being reflected have a sharp and crisp appearance as would be seen in a near-mirror like reflection. May require grouting||70-100|
DISTINCTNESS OF IMAGE (DOI) GLOSS
The distinctness of image is how sharp an image of on object that is produced by a reflection on a polished surface is.
Measurement by Image Clarity Meter (ASTM D5767): The image clarity value from the DOI is obtained from this method of testing. This ranges from 0 to 100, with 100 representing a perfect distinctness of image or image clarity.
Haze can be defined as the cloudiness of images of objects that are produced by reflections in a polished surface.
For areas of 1000 ft2, the minimum number of tests distributed across the polished surface should be three and then an additional test can be conducted for each 1000ft2 or fraction thereof.
The average values of test results that should be used to evaluate should follow this chart.
*Reproduced with the permission of “Concrete Polishing Council of the American Society of Concrete Contractors” *
Concurrent measurements of all parameters. Results are then date and time stamped.
The statistics are measured per parameter.
Graphical reporting for fast trend analysis.
User-identifiable batch names and sizes for more efficient reporting.
Fast data transfer
Software free data transfer
Easy USB connection to PC that instantly identifies the device as a drive location which allows for quick transfer of files using Windows Explorer or similar.
Direct data input via BT wireless
Immediate transmit measured readings directly to programs such as MS Excel on your PC / tablet to greatly simplify the reporting process.
Statistical analysis via novo-gloss multi gauge software
This software provides an easy means to measure, import and compare data and export the measurments into several other formats.