A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Corrosion Resistance and Service Life of Drainage Culverts
Laboratory/yard tests and a field survey were conducted to determine how chloride-induced corrosion limits the durability of reinforced concrete culvert pipe, and to revise as needed Florida Department of Transportation guidelines for predicting durability. Laboratory tests exposed culvert pipe segments from two different manufacturers to cyclic and continuous saltwater ponding for up to 4.4 years. Yard tests were conducted with full size pipes exposed to saltwater for over 2 years. These tests revealed substantial chloride penetration and corrosion initiation during the exposure period. The results suggest that performance may be improved by the use of higher cementitious content concrete containing fly ash. Culverts exposed in the field to coastal seawater for estimated periods ranging from 27 to 43 years were examined and showed conditions ranging from mild corrosion to severe cracking, although all pipes appears to be fully functional. Concrete cores of the field samples showed extensive chloride penetration or initiation of corrosion, and that evaporative chloride concentration was important. It is proposed that an approach similar to that used by FDOT for estimating service regimes of marine substructure be applied to culvert pipe so that pipes in saltwater having above 2,000 ppm chloride, and having portions immediately above high tide, be treated for service life estimation the same as if exposed to seawater service.
Corrosion Resistance and Service Life of Drainage Culverts
Laboratory/yard tests and a field survey were conducted to determine how chloride-induced corrosion limits the durability of reinforced concrete culvert pipe, and to revise as needed Florida Department of Transportation guidelines for predicting durability. Laboratory tests exposed culvert pipe segments from two different manufacturers to cyclic and continuous saltwater ponding for up to 4.4 years. Yard tests were conducted with full size pipes exposed to saltwater for over 2 years. These tests revealed substantial chloride penetration and corrosion initiation during the exposure period. The results suggest that performance may be improved by the use of higher cementitious content concrete containing fly ash. Culverts exposed in the field to coastal seawater for estimated periods ranging from 27 to 43 years were examined and showed conditions ranging from mild corrosion to severe cracking, although all pipes appears to be fully functional. Concrete cores of the field samples showed extensive chloride penetration or initiation of corrosion, and that evaporative chloride concentration was important. It is proposed that an approach similar to that used by FDOT for estimating service regimes of marine substructure be applied to culvert pipe so that pipes in saltwater having above 2,000 ppm chloride, and having portions immediately above high tide, be treated for service life estimation the same as if exposed to seawater service.
Corrosion Resistance and Service Life of Drainage Culverts
A. A. Saguees (author) / C. Cotrim (author) / M. Pech-Canul (author) / I. Urdaneta (author)
2001
65 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Corrosion & Corrosion Inhibition , Nonferrous Metals & Alloys , Corrosion resistance , Culverts , Pipes(Tubes) , Durability , Fly ash , Chlorides , Exposure , Strength , Laboratory tests , Reinforcing steels , Concretes , Drainage , Highway
Road foundations, drainage and culverts
| Engineering Index Backfile | 1919
| British Library Online Contents | 1992
Optimal Design for Highway Drainage Culverts
| ASCE | 2021
Safety Grates for Cross-Drainage Culverts
| British Library Online Contents | 2008
Pipe culverts for meeting varying drainage needs
| Engineering Index Backfile | 1952