City of Los Angeles Tests 48 Year Old T-Lock Protected Pipe and 72 Year Old Tile Lined Pipe

机译：洛杉矶市测试48岁的T锁保护管和72岁的瓷砖衬里管

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The City of Los Angeles has removed a section of pipe from the La Cienega / San Ferndando ValleyRelief Sewer after 48 years of service and performed testing on it to determine how its currentcondition. This pipe was protected by T-Lock and has been continually in service. Testing includedcompressive strength of the concrete, tensile strength and pull out resistance of the reinforcing steel,petrographic analysis of the concrete of the pipe at invert and springline. The T-Lock was tested forhardness, tensile strength, elongation at failure, and pull off resistance. Both the pipe and the T-Lockwere found to be in excellent condition after 48 years of service.Testing was also done on sections of pipe removed from the North Outfall Sewer after 78 years ofservice. This sewer was protected by clay tile liner. Compressive strength testing and petrographicanalysis were performed on this sewer. Significant corrosion due to sulfate attack was found in thissewer.

机译：经过48年的服务，洛杉矶市已从La Cienega / San Ferndando ValleyRelief下水道中拆除了一段管道，并对其进行了测试以确定其当前状况。该管道受T型锁保护，并一直处于使用状态。测试包括混凝土的抗压强度，钢筋的抗拉强度和抗拉强度，在倒转和弹跳线上对管道混凝土的岩相分析。测试了T型锁的硬度，抗张强度，断裂伸长率和抗脱落性。服务48年后，管道和T型锁均处于良好状态。服务78年后，还对从北排污管中拆除的部分管道进行了测试。该下水道受到粘土砖衬里的保护。在该下水道上进行抗压强度测试和岩相分析。在该污水管中发现了由于硫酸盐侵蚀引起的严重腐蚀。

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来源
《Water Environment Federation annual technical exhibition & conference;WEFTEC 2002》|2002年|p.1-19|共19页
会议地点 Chicago, IL(US);Chicago, IL(US)
作者
Keith Hanks; S. Hall; R.T. Haug; Ansar Mustafa;
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作者单位

City of Los Angeles Bureau of Engineering 650 South Spring Street #1000 Los Angeles CA 90014;

Ameron International;

Samara Ali-Ahmad;

City of Los Angeles Bureau of Engineering;

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关键词
concrete pipe; ; corrosion; ; corrosion protection; ; sulfate attack; ; sewer; ; testing;

机译：混凝土管； ;腐蚀; ;防腐蚀保护; ;硫酸盐侵蚀； ;下水道; ;测试;

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City of Los Angeles Tests 48 Year Old T-Lock Protected Pipe and 72 Year Old Tile Lined Pipe

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