In response to growing demand from clients and the concrete/aggregate producer industry throughout the US and abroad, ATL has expanded our concrete and aggregate laboratory testing capabilities to include Rapid Freeze Thaw and Alkali Reactivity Testing.
ASTM C666 or AASHTO T 161, Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing
This test measures the ability of concrete to withstand repetitive freezing and thawing over its service life. Concrete specimens made with mix or project specific aggregates are subject to alternating cycles of freezing and thawing. Deterioration of specimens is then measured by the reduction in the dynamic modulus of elasticity, linear expansion, and weight loss of the specimens. ATL’s state-of–the-art freeze chamber is able to run 8 freeze/thaw cycles per day, resulting in more timely completion of testing and reporting.
ASTM C1260/C1567, Standard Test Method for Potential Alkali Reactivity of Aggregates
ASTM C 1260 is an accelerated test method to determine the potential of aggregates to adversely react with alkali hydroxides in concrete cement by measuring the expansion of laboratory cast mortar bar specimens made with mix or project specific aggregates. If necessary, ATL’s experienced Materials Engineers and laboratory professionals can assist with selecting and proportioning concrete mixtures to reduce or mitigate alkali-silica reaction (ASR) potential as determined by ASTM C1567.
For more information contact Bob Field at (518) 383-9144 or email at BField@atlantictesting.com.