style="text-align: left;">The Durability Test Program was undertaken by the Illinois Prestressed Concrete Association in collaboration with the Prestressed Concrete Institute. In addition, the Corps of Engineers is preparing to run brine tests on prestressed beams loaded in flexure. These beams are set in the tide wash along the coast of Maine, and will probably be under test for two years. The investigation reported herein is fundamentally concerned with the durability of prestressed concrete in regard to freezing and thawing action. Some provisions were made to study the creep in the loaded concrete specimens undergoing the tests.>References style="text-align: left;">1. Permanence of Prestressed Concrete, Prestressing News, Prestressed Concrete Development Group of Groovenor Gardens, London, England, 1958. style="text-align: left;">2. Tests of High-Early Strength Cements Available for Highway Construction in Illinois, State of Illinois, Department of Public Works and Buildings, Division of Highways, Bureau of Materials, 1951. 18 p, Table 8(b).
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