It is noted that reliable nondestructive (NDT) methods now exist to measure the depth and integrity of deep foundations, locate delamination in concrete bridge decks, find voids beneath concrete slabs, locate and measure reinforcing steel, assess corrosion damage, and evaluate concrete quality or deterioration in situ. Early problems with NDT encountered by civil engineers are discussed, and recent advances in applications are described. The development of digital electronics and computers, increased portability, and advances in automated processing of data, have all contributed to its adoption as standard procedure is many countries for assuring quality control, assessing damage on old structures, and monitoring the effeciveness of repair works. Research is described that was funded by the Strategic Highway Research Program (SHRP), and which has developed an NDT method that identifies the presence of the damaging alkali silicate reaction (ASR) gel in situ.

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  • Accession Number: 00618496
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Jan 31 1992 12:00AM