UndergroundStructuralGeneralAdvances in Silicate Accelerators for Shotcrete
Vicky Sidorkiewicz and Michael McDonald
Read MoreSodium silicate has long history of use in construction and geotechnical applications due to its versatility and reliable performance. In shotcrete placement, sodium silicate solutions were widely used as…
UndergroundStructuralGeneralAutomated Shotcrete Application in Tunnelling
Igor Schweiggl, Rainer Antretter, Alex Sellemond, Norbert Fügenschuh, and Peter-Rolf Dietrich
Read MoreThe tunnelling industry has again been working toward the automation of shotcrete application for some years now, after research and development stalled around 2005. Robots had been developed with the capability of…
ArchitecturalStructuralGeneralBuddha Statue
Peter Epperson
Read More… then I got a call from a local Buddhist monastery: They asked if our company would build them a 110 ft (34 m) tall concrete statue of the Buddha. It would be the tallest statue of Buddha in the Western Hemisphere. How could I say no? I forgot all about
GeneralCommentariesIntroducing the Construction Mental Health Alliance: Protecting the People Who Build Our World
Joseph Whiteman
Read MoreIn construction, some of the most effective solutions start outside of the boardroom. They take shape in the field, coming from the people closest to the work — our craft professionals, supervisors, safety professionals, and company leadership, working through real challenges and…
GeneralCommentariesASA Committee Chair Memo: Informing the Market, Making a Difference
Ryan Oakes
Read MoreThe pool and skatepark industries continue to evolve, and with that evolution comes both progress and pressure. In recent years, we have seen the effects of rapid growth, increased demand, and…
GeneralCommentariesASA Executive Director Update: Strategic Alliances
Charles S. Hanskat
Read MoreSince our inception in 1998, we have made a distinct mark on the concrete construction market. Through our direct, dedicated member involvement in a variety of engineering, design, and construction-oriented standards development organizations, we have advanced the…
ArchitecturalStructuralGeneralFire-Spalling Resistant Dry-Mix Shotcrete: For the Rehabilitation of the Louis-Hippolyte-La Fontaine Tunnel
Christine Poulin and Cody Fournier
Read MoreSince 1967, the bridge-tunnel Louis-Hippolyte-La Fontaine has been one of the most critical transportation arteries for one of Canada’s busiest cities. Located in Montreal, Quebec, this unique structure combines…
GeneralCommentariesFrom Hard Hats to Helmets: The Evolution of Head Protection in the Workplace
Scott Greenhaus
Read MoreIn the realm of occupational safety, head protection has come a long way from its beginnings as a simple hard hat. The transition from hard hats to helmets represents a remarkable evolution in the goal of keeping workers safe in a wide range of…
EspañolGeneralCommentariesDisciplinas clave para avanzar como lanzador de concreto: De Operador a Experto Consciente en Concreto Lanzado
Raúl A. Bracamontes (Traducción al español editada por Raúl A. Bracamontes)
Read MoreEl desempeno del concreto lanzado a menudo se atribuye al dise.o de la mezcla, al equipo o a los materiales. Sin embargo, la experiencia en campo demuestra consistentemente que el factor mas influyente en la calidad final del concreto lanzado es el lanzador…
GeneralCommentariesKey Disciplines for Advancing as a Shotcreter: From Operator to Conscientious Shotcrete Expert
Raúl A. Bracamontes
Read MoreShotcrete performance is often attributed to concrete mixture design, equipment, or materials. Field experience consistently demonstrates, however, that the most influential factor in the final quality of shotcrete is the shotcreter…