Using robotic 3D printers that can build the concrete walls of a house, a pair of Texas startups say the technology could help alleviate two crises: the housing shortage and climate change.
Scientists are trying to make concrete stronger and more sustainable by adding coffee grounds to the mix. Initial results are promising, but questions about scale remain.
The TCEQ has proposed changes to concrete batch plant permits including lowering production limits, reducing dust coming from plants and setting minimum distance requirements from nearby communities.
