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GeneralSafety Shooter: Guilty through Association Wall Forms and Rebar Safety Tip

Chris Zynda

I remember doing a job in San Francisco, CA, about nine or ten years ago. The job consisted of building a basement in an existing commercial area. There were buildings on both sides of the new proposed basement. The construction called for the new basement

GeneralCertification vs. Qualification of Shotcrete Nozzlemen

Merlyn Isaak

In 2000, ACI, in cooperation with ASA, estab-lished a formal certification program for certifying shotcrete nozzlemen. Prior to that date, ACI had a guideline document for certifying nozzlemen, but it was not being uniformly applied, it contained outdated features and appli-cations, and it was not

GeneralInfluence of Construction Joints in Wet-Mix Shotcrete Panels

Jean-Francois Trottier, Dean Forgeron, and Michael Mahoney

Where a section of shotcrete is left incom-plete at the end of a shooting shift, some provision must be made to ensure that the joint will not develop a plane of weakness at this point. According to the American Concrete Institute™s œGuide to Shotcrete1 and

GeneralCalcium Aluminate Technology and It’s Application in Refractory Shotcrete

Mark W. Fitzgerald, Joseph Talley, and Charles W. Alt

The use of calcium aluminate cement as the binder in refractory systems in general, and refractory shotcretes in particular, is widely approach to high-performance refractory shotcrete involves the use of calcium aluminate aggregates along with the calcium aluminate cement. The addition of this unique aggregate

GeneralRefractory Shotcrete – Current State of the Art

I. Leon Glassgold

GeneralNovel Form-Free Installation Method for Refractory Castables

Tomas Richter and Don McIntyre, ANH Refractories Company

After a brief history of different installation modifications, this paper introduces a novel installation technique, which enables form-free placement of low cement and fully dispersed castable compositions. The method does not require the typical wet pumping equipment, as is needed for shotcreting, but delivers similar

GeneralSafety Shooter : Create a Pre-Site Checklist

Chris Zynda

Whenever possible, try to pre-site all construc-tion projects before scheduling personnel and equipment. A little extra planning ahead of the actual work can save a lot of headaches later on.

GeneralCarl Akeley – A Tribute to the Founder of Shotcrete

Pietro Teichert

I only recently joined the American Shotcrete Association. But, in reading through the issues of Shotcrete and ASA™s excellent brochure, I was struck by how little seems to be known about Carl E. Akeley, the man to whom we all owe our livelihoods. What™s more,

GeneralInnovating with Shotcrete

Merlyn Isaak and Chris Zynda

GeneralSafety Shooter: Always Use Protection

Chris Zynda

About fifteen years ago, we had a project that involved doing some extensive shotcrete (dry process) window infills. The job required shooting from the inside of the building onto plywood forms and involved about 5 stories of window.