CONTINUOUS MEMBRANES TO SUPPLEMENT AND IMPROVE CEMENT LININGS FOR PIPE
SO LONG AS THEY REMAIN UNDAMAGED, CEMENT LININGS ARE A SATISFACTORY, LOW-COST METHOD OF PROTECTING PIPES AGAINST CORROSION. TO TEST THE EFFECT OF DAMAGING THE LINING, LABORATORY TESTS WERE CONDUCTED WITH A CLEANED STEEL SURFACE COATED WITH A MEMBRANE MATERIAL. MORTAR MIX WAS APPLIED OVER THE MEMBRANE AND CURED, THE EDGES WERE SEALED WITH EPOXY, THE CEMENT WAS CRACKED, AND THE SPECIMEN WAS IMMERSED IN AERATED 5% BRINE FOR PERIODS RANGING FROM 21 DAYS TO A YEAR. THE RESULTS SHOW THAT CORROSION TAKES PLACES IN VARYING DEGREES BENEATH CRACKED CEMENT LININGS AND CAN BE PREVENTED THROUGH USE OF A MOISTURE BARRIER BETWEEN CEMENT AND STEEL. THE MOISTURE BARRIER MEMBRANE IS HIGHLY DESIRABLE WHEN IT IS NECESSARY TO USE CORROSION- SUSCEPTIBLE, ELECTRICALLY RESISTANT WELD PIPE WITH CEMENT LININGS.
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Authors:
- Carlberg, B L
- Matthews, R R
- Publication Date: 1972-8
Media Info
- Pagination: p. 33-6
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Serial:
- Materials Protection and Performance
- Volume: 11
- Issue Number: 8
- Publisher: National Association of Corrosion Engineers
Subject/Index Terms
- TRT Terms: Cement; Cement mortars; Corrosion protection; Linings; Moisture barriers; Pipe; Preservation
- Uncontrolled Terms: Membranes; Pipe lining
- Old TRIS Terms: Liners; Membranes (Biology); Pipe protection
- Subject Areas: Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00217235
- Record Type: Publication
- Files: TRIS
- Created Date: Dec 13 1972 12:00AM