Construction and Full-Scale Testing of Precast Concrete Piles made with Coal Combustion Products

 

Sanjeev Kumar

Associate Professor, Dept. of Civil and Env. Engineering, Southern Illinois University Carbondale, Carbondale, IL e-mail: kumars@ce.siu.edu

Cesar Alarcon

Former Graduate Student, Dept. of Civil and Env. Engineering Southern Illinois University Carbondale, Carbondale, IL

Bernard R. Schmitt

Former Undergraduate Student, Dept. of Civil and Env. Engineering Southern Illinois University Carbondale, Carbondale, IL

Denton Kort

Regional Manager, Loadtest, Inc., 2631-D NW 41st St., Gainesville, FL 3260

 

ABSTRACT

The purpose of this investigation was to perform full-scale pile load tests on precast, reinforced concrete piles made with concrete composites having pulverized coal combustion (PCC) bottom ash to demonstrate the utilization of PCC bottom ash in the construction of precast concrete pile foundations. The goals of this investigation were accomplished by performing an extensive laboratory testing on various concrete composites to identify viable concrete composites, and field tests on full-size, reinforced concrete piles made with concrete composites containing PCC bottom ash. Field tests were also performed on piles made from an equivalent conventional concrete as the control mix. The piles were driven to refusal at depths between 18 to 20 feet using a double acting steam hammer. The piles were tested under field loading conditions. Test results presented show that the performance of precast concrete piles constructed using concrete composites was similar to that of piles constructed using conventional concrete.

KEYWORDS:Bottom ash, coal combustion, concrete composites, foundations, precast piles

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