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原文传递 Preformed Silicon Bridge Deck Joint Sealing System

题名：	Preformed Silicon Bridge Deck Joint Sealing System
作者：	Douglas E. Knoll and EdwardJ. Buczeskie
关键词：	Bridge Deck Joint Repair, Joint Systems, Expansion, Silicoflex
摘要：	The purpose of this field evaluation was to monitor the installation procedures and field performance of a preformed silicon bridge deck joint sealing system, known by the trade name “Silicoflex™”. This system consists of a preformed silicon strip seal, which is locked in place by a non-sag, high modulus silicon adhesive. The preformed seal is bonded directly to concrete, elastomeric concrete or steel joint headers. One of the projects in this report utilized an elastomeric header as an alternative, known by the trade name “Flexcon A/CTM”. Silicoflex is being considered as an alternative, temporary repair maintenance option for existing deteriorated bridge deck expansion dams systems in Pennsylvania. Three project sites were constructed in Pennsylvania for the purpose of this evaluation. One project was monitored at regular intervals over a two-year period. The other two prefects were monitored over a one-year time frame. The visual monitoring noted the performance of each expansion dam system relative to debonding, deterioration, tearing, watertightness and surface damage The performance evaluation demonstrated the system’s ability to perform as designed and provides a rapid, cost effective repair option for existing failed bridge deck expulsion dams systems. Silicoflex is being recommended for use in Pennsylvania as a temporary repair maintenance option for existing deteriorated bridge deck expansion dams systems.
报告类型：	科技报告