SYMPOSIA PAPER Published: 01 January 1976
STP32346S

Chert-Aggregate Concrete Durability After Antifreeze Treatment

Source

One potential method of aggregate upgrading and analysis of its economic feasibility is illustrated. A low durability predominantly chert aggregate was used in concrete after being vacuum saturated with various liquids including plain water, solutions of water and ethylene-glycol, plain ethylene glycol, and water saturated with calcium chloride. Concrete specimens were fabricated and exposed to alternate cycles of freezing and thawing in water. Concrete with aggregates saturated with 100 percent ethylene-glycol showed a strong increase in durability. The calcium chloride treatment showed no effect. A “ball park” cost comparison showed that aggregate production with ethylene-glycol would cost about 4.5 cents per ton as against 20 cents per ton for normal heavy-media separation treatment.

Author Information

Lin, CH
Carolina Power and Light Company, Raleigh, N. C.
Walker, RD
Virginia Polytechnic Institute and State University, Blacksburg, Va.
Payne, WW
Virginia Polytechnic Institute and State University, Blacksburg, Va.
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Details
Developed by Committee: C09
Pages: 76–84
DOI: 10.1520/STP32346S
ISBN-EB: 978-0-8031-4673-0
ISBN-13: 978-0-8031-0391-7