Title: Carbon-Negative Pilot

Author(s): Yao Wang, Mija Hubler, Rakshita Ramesh Bhat, Wil V. Srubar III, Shane Frazier, Loren Burnett, Linfei Li, Ben Stanley, Ryan Dick, and Sean James

Publication: Concrete International

Volume: 45

Issue: 8

Appears on pages(s): 49-53

Keywords: wall, biogenic, limestone, algae

DOI:

Date: 8/1/2023

Abstract:
The article discusses testing of a system designed to achieve overall carbon negativity. The system comprises a concrete slab supporting a wall constructed using concrete masonry units (CMUs). The concrete slab was made of alkali-activated cement containing algae-derived carbon-storing, biogenic limestone. The CMUs contain biomineralizing microalgae and a proprietary hydrogel binder as cement replacement.