(1968) Evaluation of Experimental Data Obtained from Lightweight Aggregate Bridge Girders, HR-104, 1968. Transportation, Department of
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Abstract
The use of lightweight aggregates in prestressed concrete is becoming more of a reality as our design criteria become more demanding. Bridge girders of greater lengths have been restricted from travel on many of our highways because the weight of the combined girders and transporting vehicle is excessive making hauls of any distance prohibitive. This, along with new safety recommendations, prompted the State of Iowa to investigate the use of lightweight aggregate bridge girders. A series of three projects was started to investigate the possibility of using lightweight aggregate in prestressed concrete. The object of this project is to study the effect which lightweight aggregate concrete has on the camber of bridge girders when used in a field situation.
| Item Type: | Departmental Report |
|---|---|
| Keywords: | Aggregate tests, Bridges, Girders, Highway transportation, Lightweight aggregates, Prestressed concrete, Transportation safety |
| Subjects: | Transportation Transportation > Materials > Gravel and aggregates Transportation > Research Transportation > Research > Concrete Transportation > Law and policies |
| ID Code: | 16993 |
| Deposited By: | Iowa DOT Library |
| Deposited On: | 02 Jun 2014 11:55 |
| Last Modified: | 18 Sep 2014 15:32 |
| URI: | https://publications.iowa.gov/id/eprint/16993 |