Accession Number : ADA190303

Title :   Repair, Evaluation, Maintenance, and Rehabilitation Research Program: In Situ Repair of Deteriorated Concrete in Hydraulic Structures Laboratory Study.

Descriptive Note : Final rept.,

Corporate Author : BROOKHAVEN NATIONAL LAB UPTON NY PROCESS SCIENCES DIV

Personal Author(s) : Webster, R P ; Kukacka, L E

PDF Url : ADA190303

Report Date : Jan 1988

Pagination or Media Count : 34

Abstract : Presented are the results of a laboratory-scaled test program conducted to evaluate the effectiveness of (a) pressure injection, and (b) polymer impregnation repair techniques for use in in situ repair of cracked concrete hydraulic structures. In general, the test results indicate that pressure injection can be used to effectively restore the integrity of air-dried and water-saturated cracked concrete. Polymer impregnation can be used to improve the quality of the concrete surrounding the crack network. However, its effectiveness in sealing the crack network is dependent upon the viscosity of the impregnant being used. The two methods can be used in conjunction to effectively repair and improve the overall quality of the structure to be rehabilitated.

Descriptors :   *CONCRETE, CRACKS, HYDRAULICS, INJECTION, PRESSURE, QUALITY, REPAIR, SATURATION, WATER, POLYMERS, IMPREGNATION, SEALING COMPOUNDS, SPALLATION, PIERS, DAMS, SPILLWAYS, LOCKS(WATERWAYS)

Subject Categories : Ceramics, Refractories and Glass
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE