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546.1R-80
Guide for Repair of Concrete Bridge Superstructures

1980, Reapproved 1997, 20 pp.

$35.50


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:
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

ACI