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546.1R-80
Repair techniques for concrete bridge superstructures are described. This includes pier caps, beams, decks, curbs, sidewalks, and rails. Special emphasis is placed on decks. Recommendations for evaluation of damage, selection of repair method, and surface preparation are given. Repair materials given primary consideration are conventional portland cement mortars and concretes, and those using latex, epoxy resins, or methyl methacrylate. Only techniques that have been documented and used extensively are included. Guide recommendations are those considered necessary for severe exposure conditions. Contents:
*General *Scope
*General *Delaminations *Spalls *Scaling *Cracked or fractured sections of concrete members *Rutting *Repair Material characteristics
*Scope *Removal of deteriorated concrete *Reinforcing Steel *Cleaning of Area to be Repaired *Cracks
*General *Materials and Proportions *Batching and Mixing *Full depth Patches and Formed Repairs *Partial Depth Patches *Overlays *Shotcrete *Curing
*General *Materials and Proportions *Patches *Overlays *Curing
*General *Epoxy concrete * Materials and Proportions * Batching and Mixing * Patches and Overlays * Crack and Fracture Repair with Epoxy Resins *Methyl Methacrylate Concrete * Materials and Properties * Batching and Mixing * Preplaced Aggregate * Premixing and Placing * Polymerization * Cleaning of Tools and Equipment * Storage and Handling of Materials * Disposal of excess monomer
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ACI
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