A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The report concludes a study of three bridge deck protective systems which were utilized on a bridge deck constructed over the Brazos River on SH 67 south of Graham, Texas. The protective systems applied were as follows: (1) Calcium nitrate was applied to a single test span as a concrete additive to inhibit steel reinforcement corrosion through pH adjustment of concrete (with non epoxy plain reinforcement), (2) High molecular weight (HMW) methacrylate was applied as a surface dressing on two test spans as a means of restricting Cl ion penetration through membrane action (with epoxy coated reinforcement and with plain reinforcement), and (3) Linseed oil surface dressing was also applied for the purpose of restricting Cl ion penetration through membrane action (with epoxy coated reinforcement and with plain reinforcement). For reasons detailed within the report, current flow readings from corrosometer probes were not attainable, and removal (core drilling) of any test bars was determined to be premature. Also, surface friction with respect to each protective system is addressed. The report summary identifies future work to be conducted and documented in this regard.
The report concludes a study of three bridge deck protective systems which were utilized on a bridge deck constructed over the Brazos River on SH 67 south of Graham, Texas. The protective systems applied were as follows: (1) Calcium nitrate was applied to a single test span as a concrete additive to inhibit steel reinforcement corrosion through pH adjustment of concrete (with non epoxy plain reinforcement), (2) High molecular weight (HMW) methacrylate was applied as a surface dressing on two test spans as a means of restricting Cl ion penetration through membrane action (with epoxy coated reinforcement and with plain reinforcement), and (3) Linseed oil surface dressing was also applied for the purpose of restricting Cl ion penetration through membrane action (with epoxy coated reinforcement and with plain reinforcement). For reasons detailed within the report, current flow readings from corrosometer probes were not attainable, and removal (core drilling) of any test bars was determined to be premature. Also, surface friction with respect to each protective system is addressed. The report summary identifies future work to be conducted and documented in this regard.
Bridge Deck Protection System Construction Report
D. Vega (author)
1989
80 pages
Report
No indication
English
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