RepairStructuralHistory of Shotcrete in Seismic Retrofit in California
James Warner
Read MoreThe widespread use of structural shotcrete actually began long before the ï¬rst appli-cation was made. Its rise was politically motivated and its continued development dictated by the occurrence of earthquakes. Responding to a school ï¬re in the 1920s, the Los Angeles School Board directed that
RepairArchitecturalStructuralWashington State’s Capitol Seismic Repair
Marcus von der Hofen
Read MoreWashington 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
Read MoreWhen 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
Read MoreAs 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
Read MoreSentenave 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
Read MoreThe 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
Read MoreSilica 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
UndergroundStructuralSteep Slope Stabilization with Fiber-Reinforced Shotcrete
Michael Ballou
Read MoreFor the past 150 years or so, roads have been built through the mountain passes in the western U.S. and Canada. Sometimes these roads led to mines; sometimes they started as logging roads. Some were built for access roads for the railroad. Many were built
UndergroundStructuralSpecification of Shotcrete Toughness
Roland Heere and Dudley R. (Rusty) Morgan
Read MoreFiber-reinforced shotcrete has become an established material for ground support in tunnelling and mining applications as well as in new construction and infrastructure repair. Designers and speciï¬ers frequently require such shotcrete to maintain some quantiï¬able postcrack strength or toughness. Until the newly published round panel
RepairStructuralShotcrete Repair Saves Baltimore Bridges
I. Leon Glassgold
Read MoreThis Shotcrete Classic was selected for reader interest. While ï¬rst 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