Hempcrete blocks and panels could be produced in the U.S. for the first time since 1937 thanks to a facility being built in the Lower Sioux Indian Community in Minnesota.
Some of the technologies being developed with the grants, ranging from subsurface sensors to microtunneling robots, could have construction applications beyond grid projects.
A different prefabrication and modular construction sector came out of the pandemic. Ambitious startups such as Skender Manufacturing and Katerra folded in the last few years, while one major health care designer lamented an industrywide pullback that saw many of the suppliers they work with cut back on custom, by-project fabrication to standardize on products like headwalls and bathroom pods.
Demands from clients and labor shortages are forcing some contractors into other methods of creating building assemblies, driving new investments in prefabrication and modular construction techniques.
Structural materials have not changed all that much since reinforced concrete was introduced to construction in the late 19th century, but a fiber-reinforced, mineral composite system from a Florida company offers a new alternative.