NICET CMT Concrete study materials
NICET CMT Concrete study resources

NICET CMT Concrete study plan

NICET CMT Concrete · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Concrete Materials, Mixture Proportions, and Specifications

  • Classify ASTM C150 cement Types I through V and C595 blended cements by composition, heat of hydration, and sulfate resistance, then match each type to a described project exposure.

  • Differentiate C618 Class C and Class F fly ash, C989 slag cement, and C1240 silica fume by their effect on set time, early versus late strength gain, permeability, and sulfate resistance.

  • Evaluate a C33 aggregate submittal: check gradation against the size-number limits, compute fineness modulus from a sieve analysis, and apply C127/C128 bulk specific gravity and absorption values to a batch weight calculation.

  • Distinguish C494 admixture Types A through G and C260 air-entraining agents by function, and predict the field symptoms of overdose, underdosing, and cement-admixture incompatibility.

  • State C1602 mixing water limits and map ACI 318 exposure classes (F, S, W, C) to their required maximum w/cm and minimum f'c.

Your checkpoint

A one-page reference table of cements, SCMs, and admixtures (type, standard, function, caution) plus a 40-question Domain 1 quiz scored at 80% or higher.

Week 2

Concrete Materials, Mixture Proportions, and Specifications

  • Compute a complete ACI 211.1 absolute-volume mixture proportion (cement, SCM, water, fine, coarse, air) for a specified f'c, slump, air content, and nominal maximum aggregate size.

  • Correct laboratory batch weights to field batch weights using aggregate moisture content and absorption, and explain why saturated-surface-dry is the reference condition.

  • Interpret ASTM C94 requirements for ready-mixed concrete: batching tolerances, discharge time and drum revolution limits, and when water may be added at the job site.

  • Trace how a specification flows from ACI 301 and ACI 318 into the submittal, verification, and acceptance sampling frequency an inspector must enforce.

Your checkpoint

Two hand-worked mix proportioning problems (one air-entrained, one non-air-entrained) including absolute volumes, SSD weights, and moisture-corrected field weights, with no more than one arithmetic error across both.

Week 3

Sampling and Fresh Concrete Testing (slump, air content, temperature, unit weight)

  • Execute ASTM C172 sampling correctly: number and location of samples, remixing, and the minimum sample size needed for the required tests.

  • Perform and interpret ASTM C143 slump, including proper lift, rodding, timing, and recognition of shear and collapse slumps.

  • Compare ASTM C231 pressure-meter air content with ASTM C173 volumetric air content and select the correct method for lightweight, highly porous, or high-slump concrete.

  • Measure concrete temperature per ASTM C1064 and calculate unit weight, yield, and relative yield per ASTM C138, then judge whether the batch meets the specified values.

Your checkpoint

A 30-question fresh-concrete problem set with all calculations shown, including three full unit weight/yield computations and five slump-versus-air decision scenarios, scored at 85% or higher.

Week 4

Specimen Preparation, Curing, and Compressive Strength Testing

  • Contrast ASTM C31 field-made specimens with ASTM C192 laboratory specimens in terms of sampling, consolidation, and number of layers and strokes per layer.

  • Demonstrate correct consolidation by rodding versus internal vibration for 4 by 8 in. and 6 by 12 in. cylinders, and identify the defects created by over- and under-consolidation.

  • Apply ASTM C511 curing environment tolerances (temperature and humidity for moist rooms and saturated lime water) and state the initial curing limits for field-stored cylinders.

  • Document specimen identity, transport, and protection so that a cylinder can be traced from sample to test report without ambiguity.

Your checkpoint

A written specimen preparation and curing procedure card, cross-checked line by line against C31 and C511, plus a 25-question Domain 3 quiz scored at 80% or higher.

Week 5

Specimen Preparation, Curing, and Compressive Strength Testing & Field Inspection, Quality Control, and Acceptance Decisions

  • Prepare and test cylinders per ASTM C39: verify specimen dimensions, apply the correct load rate, record the maximum load, and compute strength to the required reporting precision.

  • Select between sulfur mortar capping (C617) and unbonded neoprene pads (C1231), and diagnose invalid breaks from the fracture pattern.

  • Characterize fracture types (cone, cone and shear, shear, columnar, cap or end-grain) and decide whether a result must be flagged or discarded.

  • Interpret ACI 318 strength evaluation rules: the three-consecutive-test average, the single-test lower limit, and the core criteria of 85% average and 75% individual core.

Your checkpoint

A cylinder data workbook covering ten test sets: computed strengths, fracture type, validity call, and pass/fail against a stated f'c, with a short written rationale for each acceptance decision.

Week 6

Field Inspection, Quality Control, and Acceptance Decisions

  • Build a pre-placement inspection checklist covering formwork, reinforcement cover, embedments, construction joints, and approval to place.

  • Audit a delivery ticket against the approved mix design: batch weights, water added, admixture amounts, time of batching, and revolutions at discharge.

  • Apply hot-weather (ACI 305) and cold-weather (ACI 306) limits to placing, finishing, and protection, and specify when the inspector must stop the placement.

  • Verify curing method, duration, and start time against the specification, and record nonconformances so they can be closed out.

Your checkpoint

A field inspection packet for one simulated placement: completed pre-placement checklist, three audited delivery tickets, and a nonconformance log with at least two entries and their corrective actions.

Week 7

Field Inspection, Quality Control, and Acceptance Decisions & Safety, Test Standards, Records, and Reporting

  • Differentiate acceptance, referee, and informational testing, and explain how sampling location bias and technician variability affect a dispute.

  • Evaluate low-strength results and prescribe the correct follow-up sequence: review of records, additional testing, core extraction per ASTM C42, and load test or engineering evaluation.

  • Outline the safety controls for respirable crystalline silica (OSHA 1926.1153 Table 1), cylinder handling and lifting, wet-testing electrical hazards, and hazard communication on a concrete site.

  • Determine which test standards are referenced for each field activity and what happens when the wrong standard, wrong specimen size, or wrong curing regime is used.

Your checkpoint

A written low-strength investigation memo (one page) with a defensible acceptance recommendation plus a 20-question safety and standards-reference quiz scored at 85% or higher.

Week 8

Safety, Test Standards, Records, and Reporting & Concrete Materials, Mixture Proportions, and Specifications & Sampling and Fresh Concrete Testing (slump, air content, temperature, unit weight) & Specimen Preparation, Curing, and Compressive Strength Testing & Field Inspection, Quality Control, and Acceptance Decisions

  • Compile the record set required for a complete concrete test report: project and mix identification, sampling and test dates, specimen age, test method, results, and technician certification.

  • Identify and correct the gaps in a sample report so it satisfies ASTM C39, C31, and C143 reporting requirements without missing fields.

  • Diagnose personal weak areas from the cumulative quiz and problem-set error log, then re-drill the two weakest domains to demonstrated mastery.

  • Complete two full-length timed practice exams under exam conditions and analyze every missed item by domain and root cause.

Your checkpoint

Two timed full-length practice exams scored at 85% or higher, plus a corrected sample test report and a one-page error analysis listing every remaining weak topic with a review action.

Milestones

Week 2: Can complete an ACI 211.1 absolute-volume mix design from a blank page and convert laboratory weights to moisture-corrected field weights without reference notes; Domain 1 quiz average at 80% or higher.

Week 4: Can state, without notes, correct layer counts and strokes per layer for both standard cylinder sizes, the C511 curing room tolerances, and initial field curing limits; specimen procedure card passes a self-audit against C31 and C511.

Week 6: Can compute compressive strength from maximum load, classify fracture type, and apply the ACI 318 three-test average, single-test lower limit, and core criteria correctly on 10 of 10 data sets; field inspection packet complete.

Week 8: Two timed practice exams at 85% or higher with no domain scoring below 75%, and every missed item on the error log has a recorded corrective review action.