About

About Solid Carbon Solid Carbon is a low carbon concrete company that helps turn concrete from a major climate liability into a practical climate solution. Headquartered in Oregon and working with partners across North America, the company develops engineered biochar-based additives and cementitious ingredients that permanently store biogenic carbon inside everyday concrete, while preserving the performance that producers, contractors, and owners depend on. By combining established levers that reduce embodied carbon, like SCM-rich mixes and lower-clinker cements, with carbon-negative ingredients, Solid Carbon enables concrete that can move beyond “less bad” toward genuinely carbon-storing outcomes. At the core of Solid Carbon’s portfolio are two flagship product lines: BioLOCK 2.0, a forest-waste-derived additive dosed primarily as a fine-aggregate replacement, and BioPOZZ, an alternative supplementary cementitious material designed to replace a portion of portland cement. Both are built around engineered biochar feedstocks, upgraded from low-value biomass into consistent, production-ready materials that integrate into conventional batching systems and QA/QC workflows. This drop-in philosophy allows ready-mix and precast producers to trial and adopt carbon-storing mixes using familiar equipment, mix-design methods, and field practices. Solid Carbon backs its materials with rigorous testing and transparent documentation. The company works with independent labs and research partners to evaluate strength, durability, and constructability, and supports products with life cycle assessment and Environmental Product Declarations so designers and owners can quantify global warming potential and carbon storage at the mix and project level. Real-world case studies, from commercial slabs to residential flatwork, demonstrate that biochar-enhanced concrete can match or exceed conventional performance while measurably sequestering CO₂ in the structure itself. Beyond products, Solid Carbon positions itself as a technical partner to the low-carbon construction ecosystem. The team provides mix-design guidance, specification language, and project support for architects, engineers, contractors, and owners pursuing aggressive embodied-carbon targets, including those aligned with leading industry roadmaps and buyer alliances. By connecting climate-driven clients with practical, field-tested concrete solutions, Solid Carbon aims to accelerate the transition to a built environment where concrete is not just necessary infrastructure, but a reliable tool for long-term carbon storage.