ASTM C143/C143M
Standard Test Method for Slump of Hydraulic-Cement Concrete
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About This Item
ASTM C143/C143M is the standard test method for measuring the slump of hydraulic-cement concrete, a practical indicator of consistency and workability. It helps provide a common basis for evaluating fresh concrete during production, delivery, and placement. For purchasers, contractors, and testing personnel, this ASTM standard supports more uniform communication and quality control when checking whether a mix appears to meet project expectations.
What is ASTM C143/C143M?
ASTM C143/C143M, titled Standard Test Method for Slump of Hydraulic-Cement Concrete, defines a recognized way to assess the slump of fresh concrete. In simple terms, it is used to observe how a hydraulic-cement concrete specimen behaves under a specified test procedure, giving a practical measure related to consistency. The standard is commonly referenced when comparing concrete batches, documenting test results, and supporting routine acceptance or field verification activities.
Where is ASTM C143/C143M used?
This standard is commonly used wherever hydraulic-cement concrete is produced, sampled, tested, or placed. It is especially relevant in field and laboratory testing settings, such as during ready-mix delivery checks, pre-pour verification, and quality assurance work for concrete construction. ASTM C143/C143M is also useful in procurement and project documentation, where a consistent test method helps align expectations between suppliers, contractors, and inspectors.
Why is ASTM C143/C143M important?
ASTM C143/C143M matters because slump testing helps support consistency and reduce uncertainty in fresh concrete evaluation. Using a recognized ASTM standard can improve comparability between test results, assist with compliance documentation, and help identify mix variations that may affect placement or performance. For quality control programs, it provides a straightforward technical reference for routine testing, decision-making, and communication across the supply chain.
- Standard test method for concrete slump
- Applies to hydraulic-cement concrete
- Supports fresh concrete consistency checks
- Useful for field and laboratory testing
- Common reference for quality control
- Publication Date: 2020-12-01
- Publisher: ASTM
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