ACI CQTM study guide
ACI CQTM · Work through your exam, one topic at a time.
The Concrete Quality Technical Manager (CQTM) credential is one of the certification programs offered by the American Concrete Institute (ACI). ACI describes its certification offerings as designed to form a minimum qualification for personnel employed within the concrete construction industry, and it groups the CQTM program under Construction / Specialist Programs, which ACI says assess the knowledge of concrete construction practices in various specialty applications. That places the credential in the quality-management lane of concrete construction rather than in ACI's testing, inspection, or design-professional lanes. Candidates are typically people who carry responsibility for concrete quality on a project - planning and overseeing quality programs, managing submittals and mixture qualification, coordinating field and laboratory testing, and resolving nonconformance issues - and who need to demonstrate that knowledge to employers, owners, or specifiers. Topics on this exam: Concrete Quality Management and Concrete Construction Practices. The ACI CQTM study guide has 2 sections and about 637 words.
01Concrete Quality Management
Quality management on a concrete project is a system, not a single test. A candidate must understand the chain: the specification sets acceptance criteria; sampling and testing verify them; statistical evaluation decides whether a lot conforms; and nonconformance triggers investigation and corrective action. Know the roles of the quality control (QC) plan, the testing laboratory, and the acceptance authority, and know that producer QC and owner acceptance testing answer different questions. Key concepts include sampling frequency and random sampling, cylinder molding and curing (standard moist curing versus field curing), slump and air content as pre-placement checks, and strength acceptance by moving averages or individual results.
337 words, about 2 min02Concrete Construction Practices
This domain covers what happens in the field: batching, transporting, placing, consolidating, finishing, and curing. The candidate must connect each practice to the property it protects. Proper consolidation removes entrapped air and prevents honeycomb and bug holes; over-vibration causes segregation. Finishing too early draws bleed water to the surface and weakens the top layer, leading to dusting, scaling, and delamination.
300 words, about 2 min