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Contractors affirm stand on air measurement in non-AE mixes

Source: American Society of Concrete Contractors, St. Louis

The latest ASCC position statement, “Measuring Air Content in Non-Air-Entrained Concrete,” conveys contractors’ point of view for architects, engineers, owners and others. The document explains that while air content is reported in the mix design submitted for air-entrained concrete and measured in the field for compliance, air content measurements are rarely specified or measured for non-air-entrained concrete.

Read more: Contractors affirm stand on air measurement in non-AE mixes

Ductile rebar research team seeks simplified precast connector specs

Sources: Charles Pankow Foundation, McLean, Va.; CP staff

A Charles Pankow Foundation grant will fund “Seismic Precast Concrete Wall and Frame Structures with Short-Grouted Ductile Rebar Connections,” a University of Notre Dame Department of Civil & Environmental Engineering and Earth Sciences investigation under Yahya Kurama, PhD, PE. Findings could support the development of commercially available connectors holding the potential to simplify precast wall and frame construction. 

Read more: Ductile rebar research team seeks simplified precast connector specs

Oshkosh reveals next generation S-Series, electric prototype mixers

Sources: CP staff; Oshkosh Corp., Oshkosh, Wis.

Oshkosh assembled more than 50 ready mix producers from across the industry to unveil and open the order book for the new Oshkosh S-Series front discharge mixer truck. Measured against a legacy model introduced 25 years ago and upgraded in 1999, the new S-Series will have:

Read more: Oshkosh reveals next generation S-Series, electric prototype mixers

Concrete SDC Forum builds machine learning, robotics, FRP knowledge

Source: American Concrete Institute Foundation Strategic Development Council 

The SDC Technology Forum 46, August 27-29 in Pittsburgh, will showcase new and innovative equipment, materials, and applications that have the potential to advance the industry through themed presentations, including “Integrated Design of Chemical Admixture Systems via Machine Learning;” “Fiber-Reinforced Polymer Composite Macrofibers Used in Precast Concrete;” “Strengthening Bridges and Existing Concrete Structures Using Titanium;” and, “Opportunity for Improved Productivity & Quality with Robotics.”

Read more: Concrete SDC Forum builds machine learning, robotics, FRP knowledge

Concrete-scoping drone debut made in Japan

Sources: Aizawa Concrete Corp., Hokkaido, Japan; CP Staff

Top Flight Technologies Inc., a Boston-based provider of heavy-lift, long range hybrid-electric unmanned aerial vehicles (UAV), has entered a strategic partnership with ready mixed and precast producer Aizawa Concrete, which seeks to deploy new robotic technologies to proactively inspect and maintain concrete infrastructure throughout its home country of Japan.

Read more: Concrete-scoping drone debut made in Japan