ACI SCC Testing study guide
ACI SCC Testing · Work through your exam, one topic at a time.
The Self-Consolidating Concrete Testing Technician credential is one of the ACI certification programs listed under Testing Programs, the group ACI describes as assessing "the knowledge and ability to perform, record, and report the results of concrete field/laboratory tests." Within that group it sits in the Field Concrete Testing category alongside Concrete Field Testing Technician-Grade I. It is aimed at technicians, quality-control staff, and laboratory personnel who test self-consolidating concrete, a highly flowable mix that is evaluated with methods different from those used on conventional vibrated concrete. Because SCC is sensitive to segregation and passing ability, the exam emphasizes correct procedure, observation, and accurate recording and reporting rather than memorized numbers. ACI administers its certification examinations and optional training courses through an international network of sponsoring groups, so candidates typically enroll through a local sponsoring group rather than ACI directly. Topics on this exam: Self-Consolidating Concrete Field Testing and Self-Consolidating Concrete Laboratory Testing. The ACI SCC Testing study guide has 2 sections and about 831 words.
01Self-Consolidating Concrete Field Testing
Self-consolidating concrete is defined by three simultaneous behaviors: high filling ability (flow under its own weight), high passing ability (movement through congested reinforcement without blocking), and adequate static stability (resistance to bleeding, segregation, and surface settlement after placement). No single field test measures all three, so a candidate must know which property each test targets and which acceptance limits apply to that test.
432 words, about 2 min02Self-Consolidating Concrete Laboratory Testing
Laboratory testing supports mix design, qualification, and quality control, and it goes beyond the field trio. Candidates should understand tests for passing ability under severe congestion (e.g., the L-box , reported as blocking ratio h2/h1, and the U-box or fill box), tests for stability (column segregation, surface settlement, sieve segregation), and rheological characterization with a concrete rheometer or viscosity-modified slump flow measurements.
399 words, about 2 min