Structural Portal

RepairStructuralHistory of Shotcrete in Seismic Retrofit in California

James Warner

The widespread use of structural shotcrete actually began long before the first appli-cation was made. Its rise was politically motivated and its continued development dictated by the occurrence of earthquakes. Responding to a school fire in the 1920s, the Los Angeles School Board directed that

RepairStructuralSeismic Retrofit of Littlerock Dam

M.P Forest, D.R Morgan, J.R Obermeyer, P.L Parker and D.D LaMoreaux

RepairArchitecturalStructuralWashington State’s Capitol Seismic Repair

Marcus von der Hofen

Washington State’s Capitol Seismic Upgrade will surely rank as one of the top restoration projects of this decade and shotcrete proved to be essential to its success. As with most complex rehabilitations, many of the hurdles faced arose after the project had begun. The ability

RepairStructuralThick Section overhead Repair and Strengthening of a Concrete Pier: A Viable Shotcrete Solution

Roger Runacres

When considering placement options for thick section overhead concrete repair or strengthening, more often than not, the consideration of a shotcrete solution is overlooked. Historically, shotcrete has suffered from being mainly associated with vertical placements for above ground work. This may be due to the

UndergroundStructuralUse of Fiber-Reinforced Shotcrete

Peter C. Tatnall

As many of you Shotcrete readers know, there have been many articles published here on FRS, and many more where FRS is mentioned. Two articles in the premier issue of Shotcrete in February, 1999, mentioned FRS. I have been keeping a bibliography of Shotcrete articles

RepairStructuralThe Setenave Dry Docks Rehabilitation

Ivan Ramalho de Almeida, Thomaz José Ripper Barbosa Cordeiro, and José Paulo Veríssimo Maia Costa

Sentenave is ageneral designation for a shipyard built in the ninty seventies at the right end of Portugal

StructuralRock Stabilization of Two Historically Sensitive Rock Slopes using Shotcrete

Daniel Journeaux

The need to stablize these rock slopes was driven by the construction of the Hudson-Bergen Light Rail Project, which was being extended into Weehawken, NJ. The location of the light rail was along the base of the Palisades in Hoboken and Weehawken. The need to

RepairUndergroundStructuralSilica Fume in Shotcrete

John Wolsiefer, Sr., and Dudley R. Morgan

Silica fume is a highly pozzolanic mineral admixture that has been used mainly to improve concrete durability and strength and as portland cement replacement. Silica fume has been used primarily in the United States, Canada, and the Scandinavian countries, but is now finding increasing use

RepairStructuralArchitectural Finishes for Retaining Walls

Marcus H. von der Hofen

What kind of architectural finishes are possible with shotcrete? From the most basic natural gun finish to exotic carved sculptures, from the gray color of regular portland cement concrete to custom-colored and stained mixtures, shotcrete can take on many different types of finished appearance. Today™s

RepairStructuralShotcrete Repair Saves Baltimore Bridges

I. Leon Glassgold

This Shotcrete Classic was selected for reader interest. While first published 23 years ago, most of the dry-mix shotcrete technology described for repair of bridges still remains relevant today. There are a few areas where things have changed. Small line wet-mix shotcrete equipment is now