ASTM C128
Standard Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate
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About This Item
ASTM C128 is the standard test method for determining the relative density (specific gravity) and absorption of fine aggregate. It is used to support reliable material evaluation by giving a consistent way to measure key physical properties that affect mixture proportioning and quality control. As an ASTM standard, it provides a common technical basis for testing fine aggregate used in construction and related engineering work.
Overview of ASTM C128
The official title of ASTM C128 identifies a test method focused on relative density, also called specific gravity, and absorption for fine aggregate. These measurements are commonly used to characterize aggregate materials and help support consistent reporting across testing and procurement workflows. By defining a standardized approach, the document helps laboratories and project teams compare results more reliably and apply the data in material acceptance, mix design support, and general technical evaluation.
Common use cases of ASTM C128
ASTM C128 is commonly referenced in laboratory testing of fine aggregate, especially when evaluating materials for concrete and other construction applications where aggregate properties matter. It is often used in quality control programs, supplier verification, and material certification workflows. The method is also useful when teams need consistent data for relative density and absorption, since those values can influence batch calculations and overall material performance. ASTM C128 supports repeatable testing within standard engineering and lab practices.
Benefits of using ASTM C128
Using ASTM C128 helps organizations apply a recognized test method for important fine aggregate properties. That can improve consistency in testing, reduce ambiguity in reporting, and support compliance with project or specification requirements. The standard also assists with procurement and quality control by making results easier to compare between labs, suppliers, and projects. For technical teams, ASTM C128 can contribute to better material assessment and lower risk in aggregate selection and usage.
- Fine aggregate relative density
- Fine aggregate absorption measurement
- Standardized laboratory test method
- Quality control and material evaluation
- Support for mix design and reporting
- Publication Date: 2023-01-24
- Publisher: ASTM
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