Inspection of Concrete Bridge Decks with Asphalt Overlays - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Inspection of Concrete Bridge Decks with Asphalt Overlays write by Matthew Daniel Baright. This book was released on 1998. Inspection of Concrete Bridge Decks with Asphalt Overlays available in PDF, EPUB and Kindle.
Nondestructive Evaluation of Concrete Bridge Decks with Overlays
Nondestructive Evaluation of Concrete Bridge Decks with Overlays - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Nondestructive Evaluation of Concrete Bridge Decks with Overlays write by Shibin Lin. This book was released on 2021. Nondestructive Evaluation of Concrete Bridge Decks with Overlays available in PDF, EPUB and Kindle. Concrete bridge deck overlays have been used in the United States since 1960 to extend the service life of deteriorated concrete bridge decks and improve reliability. Concrete bridge decks with overlays suffer various types of deterioration, so it is necessary to identify and assess the effectiveness of different nondestructive evaluation (NDE) technologies in the laboratory under controlled conditions and in the field under actual conditions. This report provides an overview of seven types of widely used overlays: asphalt with a liquid membrane, asphalt with a fabric membrane, asphalt without a membrane, silica fume-modified concrete, latex-modified concrete (LMC), epoxy polymer concrete, and polyester polymer concrete. This report identifies and ranks available and promising NDE technologies to assess the performance of different types of overlays and concrete bridge decks. This report describes laboratory validation on overlays for nine commonly used NDE technologies. The nine NDE technologies are: sounding, ultrasonic surface waves (USW), impact echo (IE), ultrasonic tomography (UT), impulse response (IR), ground-penetrating radar (GPR), electrical resistivity (ER), half-cell potential (HCP), and infrared thermography (IRT). This report details the results of laboratory tests validating the NDE technologies for the seven different types of overlays. Field validation using the RABITTM bridge deck assessment tool and manual testing equipment was also performed. Results from the study on which this report is based indicated that GPR was the most effective method for detecting defects in underlying concrete specimens through both bonded and debonded overlays; however, GPR could not detect overlay debonding. Results also showed that USW, IE, and UT were effective stress-wave-based methods for detecting defects under bonded overlays but not asphalt overlays. Researchers found that asphalt overlays at low temperatures (i.e., 32°F or below) improved the applicability of
Nondestructive Testing to Identify Concrete Bridge Deck Deterioration
Nondestructive Testing to Identify Concrete Bridge Deck Deterioration - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Nondestructive Testing to Identify Concrete Bridge Deck Deterioration write by . This book was released on 2013. Nondestructive Testing to Identify Concrete Bridge Deck Deterioration available in PDF, EPUB and Kindle. " TRB's second Strategic Highway Research Program (SHRP 2) Report S2-R06A-RR-1: Nondestructive Testing to Identify Concrete Bridge Deck Deterioration identifies nondestructive testing technologies for detecting and characterizing common forms of deterioration in concrete bridge decks.The report also documents the validation of promising technologies, and grades and ranks the technologies based on results of the validations.The main product of this project will be an electronic repository for practitioners, known as the NDToolbox, which will provide information regarding recommended technologies for the detection of a particular deterioration. " -- publisher's description.
Evaluation of Bridge Deck Delamination Investigation Methods
Evaluation of Bridge Deck Delamination Investigation Methods - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Evaluation of Bridge Deck Delamination Investigation Methods write by Henrique L. M. dos Reis. This book was released on 1998. Evaluation of Bridge Deck Delamination Investigation Methods available in PDF, EPUB and Kindle. An objective view of the relative advantages and limitations of the nondestructive testing and evaluation methods that are currently used in the inspection of bridge decks is presented and discussed. The three main nondestructive testing technologies that were evaluated are impact-echo, ground penetrating radar, and infrared thermography. Nondestructive testing and evaluation procedures, including methodology and equipment to evaluate concrete bridge decks with asphalt overlays, are also presented and discussed. Current results indicate that a combination of ground penetrating radar and infrared thermography would provide the best methodology for evaluating the structural integrity, e.g., delaminations, of concrete bridge decks with overlays. Furthermore, current results also indicate that the impact-echo method shows promising future development towards the nondestructive evaluation of bridge superstructures.
Field Inspection Guide for Bridge Deck Cathodic Protection
Field Inspection Guide for Bridge Deck Cathodic Protection - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Field Inspection Guide for Bridge Deck Cathodic Protection write by . This book was released on 1988. Field Inspection Guide for Bridge Deck Cathodic Protection available in PDF, EPUB and Kindle. "This report is intended as a guide for inspectors who are unfamiliar with the construction procedures used when installing cathodic protection systems on reinforced concrete bridge decks. The text has been divided into sections in an effort to simplify the report and make it easier to locate desired information. The first four sections provide some basic background information about cathodic protection. Section V discusses a general system installation; each of the major components are discussed to provide a basic understanding and act as a checklist during the installation process. Section VI discusses the various types of systems that have been installed, to date. This is not intended to be an all-inclusive manual. Rather, it is to be used as a guide to help overcome some of the most common problems associated with the installation of cathodic protection systems. It is meant to support and supplement good specifications, not replace them"--Page 1
