ASTM C117
Standard Test Method for Materials Finer than 75-μm (No. 200) Sieve in Mineral Aggregates by Washing
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About This Item
ASTM C117 is the standard test method for determining the amount of materials finer than 75-μm (No. 200) sieve in mineral aggregates by washing. It provides a practical way to measure very fine material content that can affect aggregate quality, processing, and end-use performance. For laboratories, producers, and purchasers, this ASTM standard supports more consistent testing and clearer evaluation of aggregate cleanliness and gradation-related requirements.
Purpose of ASTM C117
The purpose of ASTM C117 is to define a repeatable washing-based test method for identifying and measuring fines passing the 75-μm (No. 200) sieve in mineral aggregates. By focusing on material that is too fine to remain in the aggregate sample after washing, the standard helps users assess the presence of dust-like particles and other fine constituents. This technical document is commonly used as a quality-control and verification tool when aggregate fines content matters for specification compliance.
Common use cases of ASTM C117
This standard is commonly used in aggregate testing laboratories, production quality control, and procurement verification for mineral aggregates. It may be applied when checking fine material content in sand, gravel, crushed stone, or blended aggregate products intended for construction-related use. ASTM C117 is also useful in routine sampling and acceptance workflows where compliance with aggregate requirements depends on accurate measurement of material passing the No. 200 sieve by washing.
Why ASTM C117 matters
ASTM C117 matters because fine material content can influence aggregate consistency, specification compliance, and overall product evaluation. Using a recognized test method helps reduce variability between test results and supports more reliable comparisons across suppliers, batches, and projects. For buyers and producers, ASTM C117 can aid risk reduction by providing a standardized basis for quality control decisions, acceptance checks, and documentation of aggregate performance requirements.
- Washing method for fines determination
- Material passing 75-μm (No. 200) sieve
- Mineral aggregate testing and verification
- Quality control and acceptance support
- Useful for specification compliance checks
- Publication Date: 2024-04-11
- Publisher: ASTM
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