Repair Portal

RepairGrain Silo Rupture Repair

David Drake

Barlett & Co. faced a huge cleanup job at its 6.9 million-bushel trail terminal in Wichita, Kanasas in the fall of 1999. A grain silo in diameter and tall holding roughly 150,000 bushels.

RepairUse of Synthetic Fiber-Reinforced Dry-Mix Shotcrete for the Rehabilitation of a Wharf in Northeast Quebec, Canada

Pierre Lacombe, Martin Grendeau, and Yann Ropars

RepairStructuralNew Mixture Design and Guide Specifications and Inspector’s Manual

Bruce Johnson

Shotcrete has not traditionally been a material of choice for repair of bridge structures by many state highway departments. One reason for this is that bridge engineers have not been aware of advances in the quality and durability possible with high-performance shotcrete over the last

RepairUse of Dry-Mix Shotcrete to Repair a Lighthouse Structure

Martin Gendreau, Eng. MSc., Denis Beaupre©, Eng. PhD., Pierre Lacombe, Eng. MSc., and Jean De Montigny, Eng. MSc

This paper presents a description of the repair work carried out in 1996 at the Haut-Fond Prince lighthouse structure located in the St. Lawrence River, 8 km (5 mi) from the coast of Tadoussac, Quebec, Canada. The damaged section of the structure in the tidal

RepairUndergroundStructuralEvolution of Fiber Reinforced Shotcrete

Dr. Rusty Morgan and R. Here

The concept of reinforcing shotcrete with discrete, disominous steel fibers was developed by the Battelle Research Corporation in the USA in the early 1970s.

RepairStructuralShotcrete with Steel Fiber Helps Reinforce Mount St. Helens Project Savings

Alex Keffalas

Thirteen-hundred feet (400 m) of the peak collapsed or blew outwards. As a result, 24 square miles of the valley was filled by a debris avalanche of recreation.

RepairArchitecturalStructuralSeismic Reinforcing of Masonry Walls With Shotcrete

Bill Snow

Photos and newsclips show­ing hundreds of collapsed homes bury­ing entire families have become all too commonplace. As residents of North America we are thankful that this sort of calamity doesn’t happen here. The earth­quakes we’re used to seeing (mainly in California) cause inconvenience and in

RepairArchitecturalStructuralShotcrete Rehabilitation of a Vancouver, BC Historic

R. Heere, D.R. Morgan, N. McAskill, and T. Knowlton

A heritage high-rise building in Vancouver, Canada required rehabilitation due to corro­sion of the steel frame and cracking in the masonry infill. Brick masonry was segmentally removed from the face of this 15-story-high building to expose the steel beam and column framjng system. Steel corrosion

RepairStructuralBond Strength of Shotcrete Repair

Denis Beaupre

A good concrete or shotcrete repair must possess three prime char­acteristics: 1) the repair material must be durable in an aggressive environment, 2) the repair must be well bonded to the substrate and 3) the repair must be as crack free as possible to efficiently

RepairUndergroundRehabilitation of Sanitary and Storm Sewers Using Shotcrete

W.L Snow

The infrastructure of the United States is crumbling above, below, and around us. A considerable segment of the public and private engineering community is currently engaged in solving a geo­metrically increasing problem with geometrically decreasing funds. The problem is often compounded since maintenance of public