A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Polymer Impregnation of New Concrete Bridge Deck Surface, Final Report
In August, 1979, the first full-scale polymer impregnation project in Maine was completed on a new I-95 Northbound bridge over Old Route 159 and Bangor & Aroostook Railroad in Island Falls. A work force comprised of State Bridge Maintenance and Materials & Research personnel performed the work since an experienced contractor in polymer systems was not available. The surface impregnation was successful in that the desired 3/4 in. impregnation depth was achieved. The new recommended procedures and specifications in the 1978 User's Manual (FHWA-RD-78-5) were followed. A system of heat blankets was selected instead of other drying methods normally utilizing enclosures. This report includes discussions on the effects of weather, moisture content in the concrete, heating system, drying cycles effect on cracking of the deck surface, and bonded silica sand. The evaluation of the treatment was limited to determining relative permeability by subjecting 4 1/2 in. diameter cores to 90-day chloride ponding tests and determining the relative degree of active corrosion of the reinforcing steel by voltmeter survey for a period of one year.
Polymer Impregnation of New Concrete Bridge Deck Surface, Final Report
In August, 1979, the first full-scale polymer impregnation project in Maine was completed on a new I-95 Northbound bridge over Old Route 159 and Bangor & Aroostook Railroad in Island Falls. A work force comprised of State Bridge Maintenance and Materials & Research personnel performed the work since an experienced contractor in polymer systems was not available. The surface impregnation was successful in that the desired 3/4 in. impregnation depth was achieved. The new recommended procedures and specifications in the 1978 User's Manual (FHWA-RD-78-5) were followed. A system of heat blankets was selected instead of other drying methods normally utilizing enclosures. This report includes discussions on the effects of weather, moisture content in the concrete, heating system, drying cycles effect on cracking of the deck surface, and bonded silica sand. The evaluation of the treatment was limited to determining relative permeability by subjecting 4 1/2 in. diameter cores to 90-day chloride ponding tests and determining the relative degree of active corrosion of the reinforcing steel by voltmeter survey for a period of one year.
Polymer Impregnation of New Concrete Bridge Deck Surface, Final Report
W. C. Edgecomb (author)
1981
121 pages
Report
No indication
English