Condition Assessment of Corroded Prestressed Concrete

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Condition Assessment of Corroded Prestressed Concrete ...

The problem we are trying to solve is the condition assessment of corroded prestressed concrete (PC) bridge girders in New England. The problem is important because that PC bridge girders are a critical component of highway bridges.

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Project C3.2018: Condition Assessment of Corroded ...

Feb 03, 2020  The problem we are trying to solve is the condition assessment of corroded prestressed concrete (PC) bridge girders in New England. The problem is important because that PC bridge girders are a critical component of highway bridges.

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Condition Assessment of a 45-year old prestressed concrete ...

or the extent of damage is not clear. In this paper the condition assessment of a 45-year old prestressed concrete bridge with fractured prestressed steel, pitting corrosion and delaminations in the bridge deck will be presented. This bridge was later demolished so that verification of the results became possible. Typical damage patterns especially

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PCCP: Condition Assessment, Repair, and Replacement

Prestressed concrete cylinder pipe (PCCP) is used by Reclamation and other agencies for water conveyance, primarily as siphons on non-redundant transmission systems. The goal of this study was to survey the state of the art in PCCP condition assessment, repair and service extension methods, and replacement strategies to provide operators

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Damage assessment of corrosion in prestressed concrete by ...

Mar 01, 2013  The majority of transportation line pre-stressed concrete cylinder pipes are 4.0 m in, inner diameter; with a length of 7.5 m, and over 70 tonnes in weight.The concrete pipe consists of a 225 mm thick concrete core within an embedded thin steel cylinder and externally wrapping prestressed wires.The prestressed wires are covered by a 19 mm thick layer of cement mortar.

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Assessment of corroded prestressed and posttensioned ...

Jun 17, 2021  Hence, prediction of the corrosion level is important in the assessment of existing prestressed structures. For this purpose, the corrosion process and the accompanying influences on the structure should be modeled. For reinforced concrete (RC) structures, a lot of research and guidelines are available to model the corrosion process.

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CONDITION ASSESSMENT AND REPAIR OF PRESTRESSED

CONDITION ASSESSMENT AND REPAIR OF PRESTRESSED CONCRETE PIPELINE. The water reclamation supply system of the Palo Verde Nuclear Power Generating Station is a 36.5 mi (58.7 km) long pipeline consisting of 114, 96, and 66 in. (2896, 2438, and 1676 mm) diameter prestressed concrete cylinder pipe (PCCP), extending from the Wastewater Treatment Plant in Phoenix to the

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Observations from Several Condition Assessments of ...

Golder Associates Inc. has conducted several condition assessments of prestressed concrete cylinder pipe (PCCP) used in the cooling water systems of energy generation facilities. This paper presents observations from these condition assessment projects. A vital component to the operation of energy generation facilities is the cooling water system.

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PCCP: Condition Assessment, Repair, and Replacement

Prestressed concrete cylinder pipe (PCCP) is used by Reclamation and other agencies for water conveyance, primarily as siphons on non-redundant transmission systems. The goal of this study was to survey the state of the art in PCCP condition assessment, repair and service extension methods, and replacement strategies to provide operators

Get price

STR-845: CONDITION ASSESSMENT OF CORRODED

CONDITION ASSESSMENT OF CORRODED REINFORCEMENT BOND TO CONCRETE BY ACOUSTIC EMISSION MONITORING Ahmed A. Abouhussien Memorial University of Newfoundland, Canada ... detect and identify a variety of damage mechanisms in both reinforced and prestressed concrete structures (Nair and Cai 2010). Few studies involved the application of AE monitoring ...

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Damage assessment of corrosion in prestressed concrete by ...

Mar 01, 2013  The majority of transportation line pre-stressed concrete cylinder pipes are 4.0 m in, inner diameter; with a length of 7.5 m, and over 70 tonnes in weight.The concrete pipe consists of a 225 mm thick concrete core within an embedded thin steel cylinder and externally wrapping prestressed wires.The prestressed wires are covered by a 19 mm thick layer of cement mortar.

Get price

CONDITION ASSESSMENT OF PRESTRESSED CONCRETE

Jan 01, 2015  Title: CONDITION ASSESSMENT OF PRESTRESSED CONCRETE BEAMS USING CYCLIC AND MONOTONIC LOAD TESTS Author(s): Mohamed K. ElBatanouny, Antonio Nanni, Paul H. Ziehl, and Fabio Matta Publication: Structural Journal Volume: 112 Issue: 1 Appears on pages(s): 81-90 Keywords: corrosion; cyclic load test (CLT); monotonic (24-hour) load test; prestressed concrete (PC).

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(PDF) CONDITION ASSESSMENT OF PRESTRESSED CONCRETE ...

Condition assessment of prestressed concrete structures with static and dynamic damage indexes. By Xinqun Zhu. Condition Assessment of Prestressed Concrete Beams Using Cyclic and Monotonic Load Tests. By Xinqun Zhu. Performance of FRCM-Strengthened RC Beams Subject to Fatigue.

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CONDITION ASSESSMENT AND REPAIR OF PRESTRESSED CONCRETE ...

CONDITION ASSESSMENT AND REPAIR OF PRESTRESSED CONCRETE PIPELINE. The water reclamation supply system of the Palo Verde Nuclear Power Generating Station is a 36.5 mi (58.7 km) long pipeline consisting of 114, 96, and 66 in. (2896, 2438, and 1676 mm) diameter prestressed concrete cylinder pipe (PCCP), extending from the Wastewater Treatment Plant in Phoenix to the

Get price

Observations from Several Condition Assessments of ...

Golder Associates Inc. has conducted several condition assessments of prestressed concrete cylinder pipe (PCCP) used in the cooling water systems of energy generation facilities. This paper presents observations from these condition assessment projects. A vital component to the operation of energy generation facilities is the cooling water system.

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Condition Assessment and Rehabilitation Guide

2. GIS mapping of soil data, breaks and condition assessment data 3. Targeted condition assessment of high-consequence pipes PRESTRESSED CONCRETE CYLINDER PRESSURE PIPE (AWWA C301 AND C304 - PCCP) •Assess potential for metal and concrete deterioration. •Detect active corrosion. Acoustic monitoring for detection of wire breaks.

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Ongoing Projects FHWA - highways.dot.gov

Concrete deterioration and corrosion of steel in prestressed (PS) concrete bridge I-girders are primary concerns for bridge owners and engineers. Currently, most condition assessment of such bridge members are done using visual inspection. While important, visual inspection cannot reveal PS steel corrosion particularly at the early stages.

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Condition Assesments Mechanical Corrosion Testing ...

Hi this is the third lecture in the module on condition assessment of concrete structures. In the first lecture we covered service and exposure condition, visual inspection and testing of concrete at site. And in the second lecture we covered testing of concrete in laboratory on both the specimens prepare in lab and obtained from the field.

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Condition Assessment Testing of concrete in laboratory ...

Hi, today we will have our second lecture on this module on condition assessment of concrete structures. In the first lecture we covered the service life and exposure conditions. And then visual inspection techniques, what are the things we should be worried about while going for a visual inspection and also we looked at testing of concrete at ...

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NCHRP Web Document 23 (Project 10-53) Contractor's Final ...

deterioration such as stress corrosion, hydrogen-assisted cracking, corrosion fatigue, and fretting corrosion. Methodology for prestressed concrete bridge condition evaluation, therefore, could be revolutionized through the development of accurate, quantitative nondestructive test methods for strand in pretensioned and posttensioned structures.

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ASNT NDT Library - $name

Nondestructive evaluation (NDE) techniques and physical testing have a potential for detection of corrosion and other causes induced damage to strands and tendons. However, the performance of those was not validated and no protocols exist for their application in condition assessment of prestressed concrete girders.

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MS No. S-2013-236.R1 Condition Assessment of Prestressed ...

corrosion techniques, impressed current, and wet/dry cycles, prior to load testing. Deflections, crack widths, and slipping ... Condition Assessment of Prestressed Concrete Beams

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STR-845: CONDITION ASSESSMENT OF CORRODED

CONDITION ASSESSMENT OF CORRODED REINFORCEMENT BOND TO CONCRETE BY ACOUSTIC EMISSION MONITORING Ahmed A. Abouhussien Memorial University of Newfoundland, Canada ... detect and identify a variety of damage mechanisms in both reinforced and prestressed concrete structures (Nair and Cai 2010). Few studies involved the application of AE monitoring ...

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Corrosion Assessment of a 34-Year-Old Precast Post ...

Corrosion Assessment of a ... Main structure type Prestressed concrete girder Number of spans 4 Deck structure type Cast-in-place concrete Wearing surface Concrete ... correlation of the observed corrosion with the condition of the concrete and grout at those areas. The scope of the

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Structural Condition Assessment Of Prestressed Concrete ...

STRUCTURAL CONDITION ASSESSMENT OF PRESTRESSED CONCRETE TRANSIT GUIDEWAYS by ROBERT Z. SHMERLING B.S. University of California, Berkeley, 2001 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in the Department of Civil and Environmental Engineering in the College of Engineering and Computer Science

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MS No. S-2013-236.R1 Condition Assessment of Prestressed ...

corrosion techniques, impressed current, and wet/dry cycles, prior to load testing. Deflections, crack widths, and slipping ... Condition Assessment of Prestressed Concrete Beams

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Condition assessment of prestressed concrete beams using ...

Eight prestressed T-shaped beams were tested using the cyclic load test (CLT) method as proposed by ACI 437-12 followed by the ACI 318-11 monotonic (24-hour) load test method. The objective of the study is to assess the ability of these methods to evaluate damage in prestressed concrete (PC) beams.

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Observations from Several Condition Assessments of ...

Golder Associates Inc. has conducted several condition assessments of prestressed concrete cylinder pipe (PCCP) used in the cooling water systems of energy generation facilities. This paper presents observations from these condition assessment projects. A vital component to the operation of energy generation facilities is the cooling water system.

Get price

Residual strength assessment and destructive testing of ...

pretensioned concrete bridge beams that had corroded pre-tensioned reinforcement. The beams were from the 1969 Tiwai Point Bridge in Southland, New Zealand. The condition of the beams tested ranged from good condi-tion to those with severe corrosion in 4 of the 21 prestressed strands. A proposed methodology for assessment of the residual

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Condition Assessment of Prestressed Concrete Beams Using ...

May 06, 2016  Condition Assessment of Prestressed Concrete Beams Using Cyclic and Monotonic Load Tests. Eight prestressed T-shaped beams were tested using the cyclic load test (CLT) method as proposed by ACI 437-12 followed by the ACI 318-11 monotonic (24-hour) load test method.

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Identification of corrosion in a prestressed concrete pipe ...

May 10, 2020  Although many factors cause failure in prestressed pipes, main failure reasons for prestressed concrete pipes can be classified into corrosion, hydrogen embrittlement and high internal and external pressure , . Similarly, Prestressed reinforced concrete pipelines with 2000 mm diameter and 110-kilometer-length were used in one of the drinking ...

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In Situ Data Analysis for Condition Assessment of an ...

Nov 06, 2018  In this study, monitoring data obtained from a structural health monitoring system installed on an existing three-span prestressed concrete bridge are analyzed for condition assessment. The central span of the bridge contains eight precast post-tensioned girders with half joints, which are located at the ends of cantilevered lengths of the side ...

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Corrosion of Steel in Concrete: Prevention, Diagnosis ...

Reinforced concrete has been developed and applied extensively in the 20th century .It combines the good compressive strength of concrete with the high tensile strength of steel and has proven to be successful in terms of structural performance and durability. However, there are instances of premature failure of reinforced concrete and prestressed concrete components due to corrosion of the ...

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Semi-Annual Progress Report - TIDC

Mar 31, 2019  C3.2018: Condition Assessment of Corroded Prestressed Concrete Bridge Girders. Research Area: Thrust 1: Transportation infrastructure monitoring and assessment for enhanced life. PI: Tzuyang Yu (UMass Lowell) Co-PI(s): Susan Faraji (UMass Lowell), ChangHoon Lee (WNEU), Moochul Shin (WNEU) Reporting Period: 01/01/2019 ~ 03/31/2019. Date: 03/31/2019

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(PDF) Spatial time-dependent reliability analysis of ...

Multiple Limit States and Expected Failure Costs for Deteriorating Reinforced Concrete Bridges. Journal of Bridge Engineering, 8(6), 405-415. Sudret, B., Defaux, G. and Pendola, M. (2006). Introducing Spatial Variability in the Lifetime Assessment of a Concrete Beam Submitted to Rebar's Corrosion.

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Reliability-based assessment of integrity of bonded ...

Nov 04, 1997  The reliability-based approach to the condition assessment of reinforced concrete containment structures was discussed by Ellingwood and Mori (1993). In contrast, this study deals with the degradation of prestressing systems and the assessment of the containment integrity based on limited inspection data. 1.2. Objective

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