Inspektion ziviler Infrastruktur 16 Punkte
Concrete Structure Crack Survey (ACI 224)
Diese Checkliste ist auf Englisch.
Systematic crack mapping and characterization of concrete structures, classifying crack type, width, and cause with durability implications per ACI 224.
ACI 224.1RACI 201.1RASTM C856
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Survey Setup
- Structure / element ID *
- Date of survey *
- Element type (deck, girder, column, wall, foundation) *
- Is a crack map / grid reference established for documentation? *
Crack Characterization
- Are crack widths measured with a crack comparator or microscope? *
- Maximum measured crack width (inches)
- Are cracks classified by orientation (transverse, longitudinal, diagonal, map/pattern)? *
- Are cracks assessed as active (moving) vs. dormant?
Cause Assessment
- Is the likely cause identified (structural load, shrinkage, thermal, ASR, corrosion, settlement)? *
- Is there evidence of reinforcement corrosion (rust staining, delamination)? *
- Is efflorescence, leaching, or moisture migration present along cracks?
- Was petrographic sampling (ASTM C856) recommended for suspected ASR/DEF?
Severity & Actions
- Do any cracks exceed the tolerable width for the exposure condition? *
- Is the crack pattern indicative of a structural (versus durability) concern? *
- Is repair (epoxy injection, routing/sealing, overlay) recommended?
- Findings and recommended actions
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