GALVANIZED STEEL REINFORCEMENT FOR CONCRETE

ARMADURAS DE ACERO GALVANIZADO PARA EL HORMIGON

Steel cylinders are particularly sensitive to corrosion when they are embedded in porous concrete containing calcium chloride or in an industrial environment. Galvanization (which consists in covering the cylinders with several layers of a zinc-iron alloy with an external layer of pure zinc - the only layer to be attacked by fresh concrete-) prevents corrosion and speeds up installation operations. Results are presented of laboratory tests on rusty and new rods; those tests showed that in both cases, there is an increase in adhesion due to galvanization. Mention is also made of accelerated corrosion tests by immersion in a solution of sodium chloride, and of the length and width of the resulting cracks. After twelve month exposure, no cracks were observed in samples containing galvanized steel. /TRRL/

Corporate Authors:
Gabinete Technico Informativo De Construccion

Sancho Davila 3
Madrid, Spain
Publication Date: 1975-4

Language

Spanish

Media Info

Features: Figures; Photos;
Pagination: p. 20-33
Serial:
- Gabiteco
- Issue Number: 46
- Publisher: Gabinete Technico Informativo De Construccion

Subject/Index Terms

TRT Terms: Adhesion; Calcium chloride; Corrosion; Corrosion resistance; Cracking; Electrolysis; Galvanizing; Material reinforcement; Oxides; Reinforced concrete; Sodium chloride; Steel; Underwater construction; Underwater structures
Uncontrolled Terms: Cylinders; Laying
ITRD Terms: 5942: Adhesion; 7315: Calcium chloride; 5252: Corrosion; 5211: Cracking; 7135: Electrolysis; 3623: Laying; 7372: Oxide; 4794: Reinforced concrete; 3471: Reinforcement (in mater); 4542: Steel; 3626: Underwater
Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials; I34: Steels and Metals;

Filing Info

Accession Number: 00159815
Record Type: Publication
Source Agency: Ministry of Public Works, Spain
Report/Paper Numbers: Analytic
Files: ITRD, TRIS
Created Date: Dec 27 1977 12:00AM