GeneralSafety Glasses
Chris Zynda
Read MoreA crane operator, carpenter, baseball player or a shotcrete crew? Probably everyone listed should use them. On a scale of 1 to 10, the shotcrete crew would rate a 10 with need. œWho on the crew should wear them? I asked one of my superintendents,
GeneralUnderstanding and Controlling Shrinkage and Cracking in Shotcrete
Dr. Rusty Morgan and C. Chan
Read MoreShrinkage is a potential problem in shotcrete construction that can lead to restrained shrinkage cracking.
GeneralCheap Insurance
Chris Zynda
Read MoreCheap Insurance: Most of us in the shotcrete industry have had a plugged hose creating either a dust storm with the dry process or concrete over-spray everywhere with the wet process. When a hose is plugged, it has been my experience that everybody on the
GeneralDevelopment of Durable Dry-Mix Shotcrete in Quebec
Daniel Vezina
Read MoreShotcrete has been widely used by the Ministere de Transports du Quebec for restoration and rehabilitation. Shotcrete has been widely used by the Ministere de Transports du Quebec for restoration and rehabilitation.
GeneralExposed Aggregate Shotcrete: New Shotcrete Finish Improves Aesthetics
Denis Beaupre
Read MoreQuebec city possesses a historic arc.a in which many concrete structures need repair. For economic as well as practka] reasons. since some of these structures are curved. shotcrete is the logical solution when a repair is considered. In order to provide attractive looking finishes for
GeneralTemporary High Initial Air Content Wet Process Shotcrete
Denis Beaupre, Marc Jolin
Read MoreThe placement of high strength wet-mix shotcrete is sometimes complicated by the compromise required between obtaining suitable pumpability and shootability.
GeneralOvercoming Pumping Problems
Neil McAskill
Read MoreThere is probably nothing as frustrating to even the most tolerant wet-mix shotcrete placing contractor or crew as problems related to pumping. While the following comments are spe-cifically related to shotcrete placement, many of them are also applicable to normal concrete pumping applications. The rheology
GeneralShotcrete Guides and Specifications
Dr. Rusty Morgan
Read MoreMost architects, design engineers and design-build contractors are familiar with preparing and producing specifications for various types of concrete construction. There are projects where the use of shotcrete, rather than cast concrete, may be more technically and economically advantageous, but the designer is reluctant to
GeneralShotcrete Bibliography
Dr. Rusty Morgan
Read MoreI was asked by the ASA Executive ComÂmittee to prepare a bibliography of shotcrete reference publications that would provide owners, designers/specifiers, supÂpliers, contractors and testing companies with useful information concerning the various aspects of shotcrete technology. I started by going to the ACI CD-ROM ConÂcrete
GeneralPerformance vs Prescription Based Shotcrete Specifications
Dr. Rusty Morgan
Read MoreIn prescription-based specifications the engineer will typically set out in detail all requirements for the materials and shotcrete mixture proportioning as well as the type of equipment required for batching, mixing, supply, and application of shotcrete. In performance-based specifications the engineer will specify the required