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ERDC/CERL TR-15-19 The Structural Insulated Panel “SIP Hut” Preliminary Evaluation of Energy Efficiency and Indoor Air Quality Construction Engineering Research Laboratory Megan A. Kreiger, Dahtzen Chu, Som S. Shrestha, K. James Hay, Michael R. Kemme, Andrew C. Johannes, Charles Decker, Debbie Lawrence, Ashok Kumar, Steven D. Hart, and Karl F. Meyer August 2015 Approved for public release; distribution is unlimited. The U.S. Army Engineer Research and Development Center (ERDC) solves the nation’s toughest engineering and environmental challenges. ERDC develops innovative solutions in civil and military engineering, geospatial sciences, water resources, and environmental sciences for the Army, the Department of Defense, civilian agencies, and our nation’s public good. Find out more at www.erdc.usace.army.mil. To search for other technical reports published by ERDC, visit the ERDC online library at http://acwc.sdp.sirsi.net/client/default.ERDC/CERL TR-15-19 August 2015 The Structural Insulated Panel “SIP Hut” Preliminary Evaluation of Energy Efficiency and Indoor Air Quality Megan A. Kreiger, Dahtzen Chu, K. James Hay, Michael R. Kemme, Andrew C. Johannes, Charles Decker, Debbie Lawrence, and Ashok Kumar U.S. Army Engineer Research and Development Center (ERDC) Construction Engineering Research Laboratory (CERL) 2902 Newmark Drive Champaign, IL 61826-9005 Som. S. Shrestha Oak Ridge National Laboratory One Bethel Valley Road Oak Ridge, TN 37831-6070 Karl F. Meyer and Steven D. Hart Department of Civil and Mechanical Engineering United States Military Academy, West Point, NY 10996 Final Report Approved for public release; distribution is unlimited. Prepared for Headquarters, U.S. Army Corps of Engineers Washington, DC 20314-1000 ERDC/CERL TR-15-19 ii Abstract The Army uses a variety of soft shelters and semi-permanent structures at contingency operating bases for functions such as barracks, dining halls, administrative offices, and maintenance shops. Soldiers or local n

This report presents the findings of a study that developed and tested high- strength lightweight concrete (HSLC) mixes having strengths from 8,000 psi to 12,000 psi made using slate lightweight aggregate. Based on optimized mix designs, 6 pretensioned AASHTO Type II girders were constructed using 8,000 psi and 10,000 psi slate HSLC and were prestressed using 0.6-inch diameter LOLAX strands tensioned to 75% of strand ultimate stress. The strands received no special preparation prior to girder casting. After initial curing for approximately 24 hours, transfer length measurements were taken from time of release until the beams reached an age of 14 days. The current AASHTO and ACI code provisions conservatively predicted transfer length for slate HSLC; modification of the current code specifications for transfer length was not necessary for slate HSLC. A direct pullout test was performed on both concrete design strengths to determine the bond between the slate lightweight concrete and the prestressing strand. A somewhat lower bond stress developed between the prestressing strand and the lightweight concrete when compared to similar strengths of normal-weight concrete. However, the average pullout strength for both series exceeded the minimum required value for 0.6-inch diameter strand of 43.2 kips. Tests were conducted on each girder end to determine development length characteristics.