Precast Solutions - September/October 2008 - (Page 3) precast precast BY NABIL F. GRACE, P.E., PH.D. SEPTEMBER/OCTOBER 2008 VO L U M E 6 | N U M B E R 5 solutions A Magazine for Specifiers and Engineers ON THE COVER: A delivery truck provides one of 63 precast pieces for the new I-35W Pedestrian Tunnel in Minneapolis. Once complete, the 252-foot long tunnel will help connect the University of Minnesota with downtown Minneapolis. 4 | A STELLAR CAST Precast concrete structural panels not only offer speed of construction in a harsh climate, but also provide high STC ratings for theatergoers in Minnesota. BY DEBORAH R. HUSO Photo Courtesy Hancock Concrete Products Co. Inc. 8 | FIBER REINFORCED POLYMERS Carbon fiber reinforced polymer (CFRP reinforcing) and carbon fiber composite cable (CFCC) strands provide unique solutions 16 | FIRST IN Precast Solutions (ISSN 1934-4066 print, ISSN 1934-4074 online) is published every two months by NPCA, the association of the manufactured concrete products industry. Material in this publication may not be reproduced without written permission from NPCA. Requests for permission should be directed to the editor. possibilities for innovative precast, prestressed concrete structures. © Copyright 2008 by NPCA. Publisher: Ty Gable Vice President of Marketing and Communication: Ron Fleming LINE Communication Director: Bob Whitmore Managing Editor: Ron Hyink Editor: Mike Cook Graphic Designer: Deborah Templeton Advertising: Brenda C. Ibitz Minnesota Department of Transportation selects precast concrete as the foundation of choice for an expansive pedestrian tunnel. BY BRIDGET McCREA NPCA Precast Solutions 10333 N. Meridian St., Suite 272 Indianapolis, IN 46290 20 | POLLUTION SOLUTION SET IN STONE CO2 accelerated concrete curing saves energy, water, air quality and production time. BY CAPRICE LAWLESS (800) 366-7731 (317) 571-9500 (International) Fax: (317) 571-0041 E-mail: npca@precast.org 24 | ASK THE SPECIFYING ENGINEER Issues of concern to the precast concrete specifying and Specialty Engineer. BY SUE McCRAVEN This publication is designed to provide accurate and authoritative information in regard to the subject matter covered; however, National Precast Concrete Association and Precast Solutions act as mediators without approving, disapproving or guaranteeing the validity or accuracy of any data, claim or opinion appearing herein. Information is provided and disseminated with the understanding that National Precast Concrete Association and Precast Solutions are not engaged in rendering engineering, legal, or any other professional services. If engineering, legal, or other professional assistance is required, the services of a competent professional should be obtained. National Precast Concrete Association and Precast Solutions do not assume and hereby disclaim liability to any person for any loss or damage caused by errors or omissions in the material contained herein, regardless of whether such errors result from negligence, accident, or any other cause whatsoever. SEPTEMBER/OCTOBER 2008 | PRECAST SOLUTIONS 3
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