Description
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.
Table of Contents
Chapter 1 -- Introduction
*General
*Scope
Chapter 2 -- Evaluation of Damage and Selection of Repair Method
*General
*Delaminations
*Spalls
*Scaling
*Cracked or fractured sections of concrete members
*Rutting
*Repair Material characteristics
Chapter 3 -- Surface preparation
*Scope
*Removal of deteriorated concrete
*Reinforcing Steel
*Cleaning of Area to be Repaired
*Cracks
Chapter 4 -- Portland Cement Concrete
*General
*Materials and Proportions
*Batching and Mixing
*Full depth Patches and Formed Repairs
*Partial Depth Patches
*Overlays
*Shotcrete
*Curing
Chapter 5 -- Latex Modified Portland Cement Mortar/Concrete
*General
*Materials and Proportions
*Patches
*Overlays
*Curing
Chapter 6 -- Polymer Concrete
*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
Chapter 7 - References
Chapter 8 - Applicable Specifications and Standards