Precast Solutions - January/February 2008 - (Page 23)

Table 1 treated sewage effluent to be less than half the purchased water. Only 44 percent of the purchased water was entering the recirculating sand filter (see Table 2), which demonstrated the system was not experiencing I&I of any significance. Total water purchased Total sewer treated Percent of purchased water treated Table 2 SYSTEM 1 — TROUBLE SYSTEM Six-month Period 253,000 gallons 327,432 gallons 129% (bad) DIAGNOSING THE PROBLEM With System 1 experiencing severe inflow and infiltration problems, the system was analyzed for failures. Tanks used in both systems were provided by a National Precast Concrete Association (NPCA) certified plant, ensuring proven quality construction methods for producing watertight tanks. Having tanks designed and constructed for watertightness from an NPCA-certified manufacturing facility helped reduce the number of areas to inspect for I&I due to the high confidence level earned from the plant certification program. If a manufacturer without a recognized quality SYSTEM 2 — GOOD SYSTEM Six-month Period Total water purchased Total sewer treated Percent of purchased water treated assurance program had supplied the tanks, the cause of the I&I could have been more difficult to find. Common types of failure that lead to I&I are cracked tanks due to 164,700 gallons 73,202 gallons 44% (good) YOU GO IT ADE. YOU GOT IT MADE. U OT DE. Tricon Tricon o ers two precast bridging solutions ers two precast bridging solutions that arrive ready to install, saving time, labor and that arrive ready to install, saving time, labor and prolonged tra disruptions. Tricon’s Redi-Span™ prolonged tra c disruptions. Tricon’s Redi-Span™ i Bridge System allows you to quickly construct a strong Bridge System allows you to quickly construct strong and handsome alternative to box culverts. The patented and handsome alternative to box culverts. The patented Con-Struct™ Prefabricated Bridge System drastically Con-Struct™ Prefabricated Bridge System drastically re reduces erection time while saving money, in contrast reduces erection time while saving money, in contrast to longer span bridges or box culverts. Not only do our to longer span bridges or box culverts. Not only do our products o er construction advantages, they also incorporate products er construction advantages, they also incorporate Tricon’s known reputation for quality and reliability. Tricon’s known reputation for quality and reliability. Visit w w w.triconprecast.com or call 1-877-387-4266 to discove Visit www.triconprecast.com or call 1-877-387-4266 to discover simple bridging solutions and for more information on the Redi-Span simple bridging solutions and for more information on the Redi-Span™ and Con-Struct™bridge systems. Con-Struct systems. ™ T R I C O N P R E C A S T, LT D . Copyright 2006 Tricon Precast,, Ltd. All rights reserved. “Tricon Precast”is a registered trademark of Tricon Precast, Ltd. “Redi-S Copyright2006TriconPrecast,Ltd.Allrightsreserved.“TriconPrecast”isaregisteredtrademarkofTriconPrecast,Ltd.“Redi-Span” a a and the “TPL” logo are trademarks of Tricon Precast, Ltd. “Con Struct” is trademark of Nelson Engineering Services, LLC and the“TPL”logo are trademarks ofTricon Precast,, Ltd.“Con-Struct”is a trademark of Nelson Engineering Services,, LLC.. JAN/FEB 2008 | PRECAST SOLUTIONS 23 http://www.triconprecast.com http://www.triconprecast.com

Table of Contents Feed for the Digital Edition of Precast Solutions - January/February 2008

Precast Solutions - January/February 2008 Contents Precast Concrete Short-Span Bridges Precast Micro-Reinforced Concrete A Winning Edge The Creative Edge TMI: Too Much Infiltration! Architectural Details Cast in Stone

Precast Solutions - January/February 2008

For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.