Stability and evolution of nano particle carbonation products in green construction materials

水泥行业每生产一吨水泥，就会释放0.9吨二氧化碳。因此，水泥制造商一直在寻找减少其整个水泥生命周期碳足迹的方法。我们的行业合作伙伴CarbonCure Technologies通过向混凝土产品中注入二氧化碳来提高产品性能，同时生产能够封存二氧化碳的绿色建筑材料，从而部分抵消排放。 混凝土制品的碳化提高了强度，降低了吸水率，提高了抗盐性，改善了冻融性能。我们之前与CarbonCure Technologies的研究将增强的性能归因于碳酸盐纳米颗粒的形成。这项研究合作将使用高分辨率显微成像，矿物鉴定和定量以及碳同位素表征，以提高我们对水泥产品中纳米颗粒和二氧化碳长期命运的理解。该行业合作伙伴将利用这些结果来最大限度地提高碳利用率，并将该工艺扩展到更广泛的水泥产品。

The cement industry releases 0.9 tons of carbon dioxide for every ton of cement they produce. Consequently, cement manufacturers are continuously looking for ways to reduce their carbon footprint across the cement life cycle. By injecting carbon dioxide into concrete products CarbonCure Technologies, our industry partner, enhances product performance while producing green construction materials that sequester carbon dioxide thereby partially offsetting emissions. The carbonation of concrete products improves strength, reduces water absorption, improves resistance to salt, and improves freeze-thaw performance. Our previous research with CarbonCure Technologies attributed enhanced performance to the formation of carbonate nano-particles. This research collaboration will use high-resolution micro-imaging, mineral identification and quantification, and carbon isotope characterization to improve our understanding of the long term fate of nano-particles and carbon dioxide in cement products. The industry partner will employ these results to maximize carbon utilization and expand the process to include a broader range of cement products.