NICET CMT Concrete study guide
NICET CMT Concrete · Work through your exam, one topic at a time.
NICET's Concrete Construction Materials Testing program - usually written CMT-Concrete - is listed on nicet.org as one of the Civil Engineering Technology certification programs, in the same family as CMT-Asphalt, CMT-Soils, and the optional CMT-Performance Examinations. It exists for the technicians who stand at the discharge end of a mixer truck and in the curing room: the people who sample fresh concrete, run slump, air content, temperature and unit weight checks, cast and cure cylinders, break them, and then defend the numbers in a report or an acceptance meeting. The NICET CMT Concrete study guide has 5 sections and about 1,686 words.
01Concrete Materials, Mixture Proportions, and Specifications
Concrete materials, mixture proportions, and specifications is the domain where the exam asks you to link what is batched to what the project documents require. Questions center on cement and supplementary cementitious material (SCM) identification, aggregate and admixture conformance, water-to-cementitious materials ratio (w/cm), and exposure-related limits in ACI 318 and ACI 301.
354 words, about 2 min02Sampling and Fresh Concrete Testing
Sampling and fresh concrete testing covers ASTM C172 sampling and the field tests that decide whether concrete can be placed: slump (C143), air content (C231 or C173), temperature (C1064), and unit weight (C138). The exam tests procedure, timing, and reporting precision.
355 words, about 2 min03Specimen Preparation, Curing, and Compressive Strength Testing
Specimen preparation, curing, and compressive strength testing covers ASTM C31 field specimens, C192 laboratory specimens, C617 capping, C1231 neoprene pads, C511 curing, and C39 compression testing. The exam wants the details that make a cylinder valid.
326 words, about 2 min04Field Inspection, Quality Control, and Acceptance Decisions
Field inspection, quality control, and acceptance decisions tests whether you can compare field results with the specification and ACI 318 acceptance rules without overstepping. You need to know the strength-test definition, acceptance criteria, and the investigation path for low results.
329 words, about 2 min05Safety, Test Standards, Records, and Reporting
Safety, test standards, records, and reporting is the domain that separates a technician who gets valid numbers from one who can defend them. The exam tests hazard control, the correct ASTM reference for each task, and documentation that preserves traceability.
322 words, about 2 min