ASTM C1585
Full Name
ASTM C1585 – Standard Test Method for Measurement of Rate of Absorption of Water by Hydraulic-Cement Concretes
Scope
ASTM C1585 provides a standardized test method for measuring the rate of absorption (sorptivity) of water by hydraulic-cement concretes. This test assesses the concrete’s susceptibility to water penetration, which is a critical factor in its durability and resistance to deterioration.
The scope of ASTM C1585 includes:
- Test specimen: the test is performed on concrete specimens, typically cores or slabs, with one surface exposed to water.
- Water absorption measurement: the test measures the increase in mass of the specimen due to water absorption over time. This is done by periodically weighing the specimen while its exposed surface is in contact with water.
- Sorptivity calculation: the rate of absorption, or sorptivity, is calculated from the mass gain data as a function of time. The initial and secondary rates of absorption can be determined.
- Significance and use: the sorptivity values obtained from this test provide valuable information about the concrete’s permeability and potential for moisture-related problems, such as freeze-thaw damage, scaling, and corrosion of embedded steel.
The test method is used in various applications, including:
- Quality control of concrete production: to ensure that the concrete meets specified permeability requirements.
- Evaluation of concrete durability: to assess the concrete’s resistance to water penetration and potential for long-term deterioration.
- Research and development: to investigate the effects of different mix designs, materials, and curing conditions on the sorptivity of concrete.
In essence, ASTM C1585 provides a standardized approach for evaluating the water absorption characteristics of hydraulic-cement concretes. This information is crucial for ensuring the durability and longevity of concrete structures in various environmental conditions.
ASTM C1585 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C1585 standard.
Contact us today to learn more about our testing capabilities and how we can support your business.
Resources
Keywords
water absorption; sorptivity; hydraulic-cement concrete; concrete specimens; mass gain; permeability; durability