National Technical Reports Library - NTRL

National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.




Details
Actions:
Download PDFDownload PDF
Download

Imaging System for the Automated Determination of Microscopical Properties in Hardened Portland Concrete.


DE2001751998

Publication Date 2000
Personal Author Baumgart, C. W.; Cave, S. P.; Linder, K. E.
Page Count 13
Abstract During this CRADA, Honeywell FM and T and MoDOT personnel designed a unique scanning system (including both hardware and software) that can be used to perform an automated scan and evaluation of a concrete sample. The specific goals of the CRADA were: (1) Develop a combined system integration, image acquisition, and image analysis approach to mimic the manual scanning and evaluation process. Produce a prototype system which can: (a) automate the scanning process to improve its speed and efficiency; (b) reduce operator fatigue; and (c) improve the consistency of the evaluation process. (2) Capture and preserve the baseline knowledge used by the MoDOT experts in performing the evaluation process. At the present time, the evaluation expertise resides in two MoDOT personnel. Automation of the evaluation process will allow that knowledge to be captured, preserved, and used for training purposes. (3) Develop an approach for the image analysis which is flexible and extensible in order to accommodate the inevitable pathologies that arise in the evaluation process. Such pathologies include features such as cracks and fissures, voids filled with paste or debris, and multiple, overlapping voids. FM and T personnel used image processing, pattern recognition, and system integration skills developed for other Department of Energy applications to develop and test a prototype of an automated scanning system for concrete evaluation. MoDOT personnel provided all the basic hardware (microscope, camera, computer-controlled stage, etc.) for the prototype, supported FM and T in the acquisition of image data for software development, and provided their critical expert knowledge of the process of concrete evaluation. This combination of expertise was vital to the successful development of the prototype system.
Keywords
  • Concretes
  • Image processing
  • Portland cement
  • Automation
  • Efficiency
  • Pattern recognition
  • Microscopes
  • Microstructure
  • Expert systems
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors Kansas City Plant, Kansas City, MO (US); Department of Energy, Washington, DC.
Document Type Technical Report
NTIS Issue Number 200124
Contract Number
  • AC04-76DP00613
Imaging System for the Automated Determination of Microscopical Properties in Hardened Portland Concrete.
Imaging System for the Automated Determination of Microscopical Properties in Hardened Portland Concrete.
DE2001751998

  • Concretes
  • Image processing
  • Portland cement
  • Automation
  • Efficiency
  • Pattern recognition
  • Microscopes
  • Microstructure
  • Expert systems
  • Technical Information Center Oak Ridge Tennessee
  • AC04-76DP00613
Loading