Inspection, Testing, and Special Inspection Requirements
Special inspection
IBC Chapter 17 requires special inspection for masonry under the conditions in the code, notably Seismic Design Category C and above and other specified cases. The statement of special inspections identifies continuous and periodic inspection requirements. The inspector verifies materials, proportions, placement, reinforcement, grout, curing, and protection.
Testing
Mortar is tested per C780, grout per C1019, and prisms per C1314. Verify sampling frequency, specimen storage, and laboratory reports. Prism tests directly check f'm; unit and mortar tests alone do not prove assembly strength.
Worked example
A project requires f'm = 2,000 psi. Prism tests report 1,800 psi. The inspector must not simply accept the lower number; the code and specification require evaluation and possible corrective action because the design assumed 2,000 psi. Document the nonconformance and notify the building official.
Traps
- Assuming special inspection is optional if the contractor self-inspects.
- Missing final reports and records.
- Accepting a mortar test as a substitute for prism testing.