This article presented results from a research program carried out at the University of Manitoba to develop a repair and rehabilitation technique for wood poles using fibre-reinforced polymers (FRP). New innovative methods are therefore required to restore and maintain the structural integrity of existing wood poles, especially in light of the increasing cost of quality wood for use in poles as well as a result of environmental concerns regarding pole disposal and chemical treatment of existing poles. However, all poles will attain a point when they are no longer suitable for their intended use. An effective preservative treatment and maintenance program can effectively extend the service life of the wood pole. The service life of a wood utility pole depends on several factors, such as decay, mechanical damage, weathering, and changing design requirements. In order to ensure safe and reliable service, all wood utility poles need an effective maintenance program. Repair and rehabilitation of wood utility poles with fibre-reinforced polymersĮnergy Technology Data Exchange (ETDEWEB) Images approaching this quality have also been produced on living trees using semiportable systems by other researchers Detailed images have been produced showing the ring structure of the wood and voids due to rot or decay. CAT can accurately image a wooden utility pole (since the size, density, and atomic elements of a pole are similar to the human head to torso), as was confirmed by imaging poles using the UMC nuclear engineering EMI-1010 medical scanner. Since the cost of replacing a pole ranges from hundreds to thousands of dollars, an accurate, nondestructive method is needed. The accuracy in identifying poles needing replacement using these techniques is ∼ 70%. Wooden utility poles are prone to rot and decay at ground level current techniques to assess this loss of strength are relatively primitive, i.e., tapping the pole (hitting the pole with a hammer) or boring into the pole for samples and then testing inside the bore hole with an electrical pulse device. CAT is a well-established medical technology that has recently been applied to a number of industrial applications. Work is under way at the University of Missouri, Columbia (UMC) to design, build, and test a portable computerized axial tomography (CAT) device for the nondestructive, field imaging of wooden utility poles. International Nuclear Information System (INIS) Design of a portable CAT scanner for utility pole inspection
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