Sodium 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…
Automated Shotcrete Application in Tunnelling
The 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…
Buddha Statue
… 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 retirement…
Introducing the Construction Mental Health Alliance: Protecting the People Who Build Our World
In 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…
ASA Committee Chair Memo: Informing the Market, Making a Difference
The 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…
ASA Executive Director Update: Strategic Alliances
Since 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…
Fire-Spalling Resistant Dry-Mix Shotcrete: For the Rehabilitation of the Louis-Hippolyte-La Fontaine Tunnel
Since 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…
From Hard Hats to Helmets: The Evolution of Head Protection in the Workplace
In 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…
Disciplinas clave para avanzar como lanzador de concreto: De Operador a Experto Consciente en Concreto Lanzado
El 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…
Key Disciplines for Advancing as a Shotcreter: From Operator to Conscientious Shotcrete Expert
Shotcrete 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…