Evaluation of DSS-14 pedestal-review of top surface repair procedures
Abstract
Proposed repair procedures for the top surface of the pedestal supporting the hydrostatic bearing runner for the 64m Antenna are presented. These procedures included: (1) removal of existing grout and concrete to approximately 8 in. below original concrete surface using a presplitting technique with expansive cement followed by secondary breaking; (2) preparation of exposed concrete surface including an epoxy bonding agent; and (3) replacement of material removed with 8 in. of new concrete surface including an epoxy bonding agent; and (4) replacement of material removed with 8 in. of new concrete and 4 in. of new grout.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- May 1983
- Bibcode:
- 1983STIN...8332989O
- Keywords:
-
- Antennas;
- Bearings;
- Concretes;
- Grout;
- Hydrostatic Pressure;
- Maintenance;
- Supports;
- Bonding;
- Horizontal Orientation;
- Reinforcement (Structures);
- Vertical Orientation;
- Engineering (General)