ICRI CSMT case studies
ICRI CSMT · Put your knowledge to work in context.
The ICRI Concrete Surface Moisture Testing (CSMT) certification is a credential for field technicians, flooring installers, inspectors, and testing-agency staff who measure moisture conditions in concrete slabs before floor coverings or coatings go down. It signals that a person can run the standard moisture test methods correctly, choose the right method for a given slab and schedule, and report results in a way that a specifier or flooring manufacturer can act on. The exam is delivered as multiple choice and draws on the ASTM methods that govern in-situ relative humidity, calcium chloride moisture vapor emission, and surface-based measurement, along with the underlying moisture transport science, method selection and scheduling, reporting and interpretation, flooring system tolerance limits, and professional practice. Preparation should center on reading the current ASTM standards directly - F2170, F1869, F2420, and F2659 - with attention to apparatus, conditioning times, depth of measurement, and reporting requirements, since exam items tend to test procedural detail rather than broad concepts. The ICRI CSMT case studies are 5 cases and about 3,432 words.
1Fast-Track F2170 on an Unconditioned Slab
An 18,000 ft² slab-on-grade in a new distribution center is 21 days old, 6 in. thick, with a 15-mil vapor retarder directly beneath it.
743 words, about 4 min2Calcium Chloride Over a Curing Compound
A 5,200 ft² retail tenant space has a 5 in. slab-on-grade placed 75 days ago.
693 words, about 3 min3Handheld Meter Says Dry, Hood Says Wet
A 9,600 ft² warehouse conversion to a fitness center has a 5 in. unsealed slab-on-grade with old black cut-back adhesive and patches of residual VCT mastic.
689 words, about 3 min4Pressure to Certify an Elevated Slab
A technician is on site at a 15,000 ft² elevated composite deck pour: 4 in. of lightweight concrete over galvanized deck, no vapor retarder, 11 weeks old, building enclosed, HVAC running at 72°F and 50% RH.
660 words, about 3 min5Mitigation Coating at Its Limit
A 10,000 ft² hospital corridor and patient-room wing has an 8 in. slab-on-grade over a vapor retarder, 14 months old, conditioned at 70°F and 50% RH.
647 words, about 3 min