ASTM C185
Standard Test Method for Air Content of Hydraulic Cement Mortar
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About This Item
ASTM C185 is the ASTM standard titled Standard Test Method for Air Content of Hydraulic Cement Mortar. It provides a recognized way to measure the air content in mortar made with hydraulic cement, helping users assess a key fresh-mix property that can affect consistency and performance. For laboratories, producers, and quality control teams, this standard supports more reliable testing and more consistent comparison of mortar results across projects and materials.
Purpose of ASTM C185
The purpose of ASTM C185 is to define a standard test method for determining air content in hydraulic cement mortar. By giving a consistent procedure, it helps reduce variation in test results and supports clearer communication between suppliers, laboratories, and specifiers. This makes the standard useful for routine evaluation, product comparison, and quality control where mortar air content is an important part of technical review and compliance work.
Common use cases of ASTM C185
ASTM C185 is commonly used in testing environments that evaluate hydraulic cement mortars as part of material qualification, production control, or performance verification. It may be applied in laboratory testing of mortar batches, incoming material checks, and routine quality assurance programs. The standard is especially relevant when air content is a required test parameter for comparing mixtures, checking consistency, or documenting results for engineering and procurement purposes.
Why ASTM C185 matters
This standard matters because air content can influence how hydraulic cement mortar is evaluated and accepted. Using ASTM C185 helps organizations support consistent testing practices, reduce ambiguity in specifications, and improve confidence in reported results. For buyers, producers, and labs, it can also aid compliance checks, product verification, and risk reduction by providing a repeatable method tied to a recognized ASTM standard.
- Standard test method for air content
- Hydraulic cement mortar testing
- Quality control and verification
- Consistent laboratory reporting
- Material evaluation and compliance support
- Publication Date: 2020-04-29
- Publisher: ASTM
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