Time-Dependent Deformation of Non-Composite and Composite Sand-Lightweight Prestressed Concrete Structures : Phase 1, February 1969

(1969) Time-Dependent Deformation of Non-Composite and Composite Sand-Lightweight Prestressed Concrete Structures : Phase 1, February 1969.

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Abstract

Presented in this report is an investigation of the use of "sand-lightweight" concrete in prestressed concrete structures. The sand-lightweight concrete consists of 100% sand substitution for fines, along with Idealite coarse and medium lightweight aggregate and Type I Portland Cement. The study is divided into three parts: a materials study of the concrete itself, a laboratory study of the behavior of both non-composite (5 beams) and composite (4 beams) prestressed beams, and the field measurement of camber of prestressed bridge girders (5 girders). The test period for the laboratory beams was 5 months, although the data collection is continuing for 3 of the beams. The test period included in this report for the bridge girders was 4 months.

Item Type: Departmental Report
Keywords: by Branson, Dan E; Meyers, B.L.; Kripanarayanan. K.M.; National Research Council (U.S.). Highway Research Board; Subject(s): Prestressed concrete construction; Concrete bridges -- Design and construction; Bridges -- Design and construction; Concrete - Creep; Concrete beams - Fatigue; Precast concrete construction
Subjects: Transportation > Materials > Gravel and aggregates
Transportation > Bridges and tunnels
Transportation > Research
Transportation > Research > Concrete
Transportation > Design and Construction
ID Code: 44106
Deposited By: Pamela Rees
Deposited On: 19 Apr 2023 21:01
Last Modified: 19 Apr 2023 21:01
URI: https://publications.iowa.gov/id/eprint/44106