Paebbl has launched Rebond 300, a near‑white, carbon negative cement alternative with a footprint of -149kg CO2 per tonne that can replace up to 30% of conventional cement in standard mixes. The SCM-based binder delivers up to 40% reduction in embodied carbon at typical replacement ratios, a 10x improvement over Paebbl’s first‑generation material, while remaining compatible with existing ready‑mix and precast workflows. The Rebond Series is formulated to work across a family of silicate minerals and uses lower clinker process temperatures, reducing heat demand and permanently storing CO2.

Decarbonising the cement sector hinges on cutting process emissions from limestone calcination and fuel combustion in high-temperature kilns, which together make cement one of construction’s largest embodied carbon sources. The piece centres on how robust carbon accounting frameworks, including project-level whole-life carbon assessments and product-level Environmental Product Declarations (EPDs), can expose the relative impacts of clinker content, alternative fuels and SCMs such as fly ash or GGBS. For designers and contractors, consistent accounting is critical to comparing low-clinker cements, specifying lower-carbon mixes and evidencing compliance with client net zero targets.

Martin Engineering has introduced the N2 Air Cannon Intelligence (ACI) System, turning conventional air cannons in cement kilns and other high-temperature process lines into monitored, connected assets. Wireless N2 sensors mounted on each cannon feed real-time pressure, firing and cycle data to a central gateway, allowing operators to detect misfires, blocked valves and suboptimal firing sequences without manual inspection. For materials handling and process engineers, this enables tighter control of build-up removal on preheaters, riser ducts and clinker coolers, reducing unplanned shutdowns and compressed air waste.