ASTM C174/C174M is the standard test method for measuring the thickness of concrete elements using drilled concrete cores. It provides a consistent way to evaluate the depth or thickness of a concrete section when direct measurement is needed, helping support construction verification, quality control, and compliance checks. By defining a recognized approach for core-based measurement, this ASTM standard helps reduce uncertainty when assessing concrete elements in the field or laboratory.

Overview of ASTM C174/C174M

This standard addresses a practical testing need: determining the thickness of concrete elements by measuring drilled cores. As an ASTM standard, it gives users a common technical reference for how thickness measurements should be obtained and interpreted in a controlled, repeatable way. ASTM C174/C174M is typically relevant when engineers, inspectors, or testing personnel need documented thickness information for concrete work and want a method that supports consistent results and traceable reporting.

Common use cases of ASTM C174/C174M

ASTM C174/C174M is commonly used when concrete thickness must be verified on existing elements or on completed work. It is relevant in testing workflows that involve drilling cores and measuring those samples to confirm section thickness. This may apply during acceptance inspections, investigation of in-place concrete, or other quality assurance activities where concrete dimensions matter. The method is especially useful when a direct, core-based measurement is preferred over estimation or indirect checks.

Benefits of using ASTM C174/C174M

Using ASTM C174/C174M helps create a clear, recognized basis for thickness measurement in concrete testing. That can improve consistency across projects, support procurement and specification compliance, and reduce disputes over reported dimensions. It also helps testing personnel document results using an established ASTM procedure, which is valuable for quality control and engineering review. For users who need dependable thickness verification, the standard adds structure and confidence to the measurement process.

• Core-based measurement method for concrete thickness
• Useful for verification and quality control
• Supports consistent test reporting
• Relevant to drilled concrete core evaluation