General Provisions, Scope, and Referenced Standards
What this domain covers
This domain tests the administrative and standards framework: what the IBC and TMS documents require before masonry is built. Expect questions on scope, referenced standards, submittals, and where inspection authority comes from.
Core rules
- IBC Chapter 21 adopts TMS 402 (design) and TMS 602 (construction) by reference; ASTM standards govern materials and tests.
- Know the common references: ASTM C90 for load-bearing concrete masonry units, C270 for mortar, C476 for grout, C1314 for prism tests, C780 for field mortar evaluation, and C1019 for grout sampling.
- The inspector works to the approved construction documents, the project specifications, and TMS 602; the building official enforces the IBC.
- Preconstruction submittals include unit test reports, mortar and grout mix designs, reinforcement and accessory data, and the quality-assurance plan.
Worked example
A specification cites ASTM C90 units, Type S mortar, and C476 grout. The inspector must verify the delivered CMU has a net-area compressive strength of at least 2,000 psi and that mortar and grout are proportioned and tested to the cited ASTM standards. A citation to C90 alone does not establish the assembly f'm; that comes from prisms or the code's unit-strength method.
Traps
- Confusing a material standard such as C90 with the design strength f'm.
- Missing that TMS 602, not the inspector's preference, sets construction tolerances.
- Treating a submittal as approval to deviate from the approved drawings.