![]() ![]() 1Īll of that is impressive and promising, yet Angelus Block has lowered the CMU-related CO 2 even further with CarbonKind™ Low Carbon Concrete Masonry Units. This research indicates high SCM masonry grout as a viable structural, sustainable, and economic alternative to conventional grout. Fly ash and fly ash/ground granulated blast furnace slag blends have been studied as SCM in high percentages, up to 80%. Masonry grout has enormous potential for cement and carbon reduction by using supplementary cementitious materials (SCM). 2ĬMU have low cement usage and begin as a low-impact material. That equates to 165 tons LESS CO 2 than tilt-up, or 2.6 pounds less CO 2 per square foot of wall area. The significant decrease in cement afforded by concrete masonry cuts 132 tons of cement. Of course, the tilt-up is all concrete the concrete masonry wall consists of CMU and masonry grout. We'll assume a 6-inch-thick tilt-up wall, and an 8-inch-thick concrete masonry wall. This could be a large warehouse, industrial or office complex. The flexibility of concrete masonry's components – CMU and masonry grout – offers exceptional low carbon potential.Ĭonsider a structure with 100,000 square feet of wall area. Masonry grout, a type of concrete that fills the cells of CMU, is very different in composition than PIP, and can be altered to dramatically reduce its cement content.Īs an example, let's examine a comparison of carbon impacts of tilt-up and concrete masonry. ![]() CMU, though a type of concrete, has substantially less cement per volume compared to PIP concrete. Paving outdoor concrete regular block texture seamless 05792. Concrete dirt paving outdoor with glass bloks texture seamless 18720. Concrete paving outdoor with dead leaves texture seamless 19253. Concrete paving outdoor with dead leaves texture seamless 19281. Not everything with "concrete” in its name is the same. Concrete paving outdoor with dead leaves texture seamless 19342. While it isn't the only major culprit, or the largest, it is the most recognizable and widely known, and no media story fails to mention it. These are all forms of poured-in-place (PIP) concrete, and contain significant amounts of Portland cement, cited so often as a major contributor to global CO 2 emissions. The term "concrete” may evoke images of sidewalks, driveways, massive structures, and of course, buildings. Concrete Masonry: An Optimized Low Carbon WallĬoncrete block, or concrete masonry units (CMU) as cited in building codes, are not your typical concrete.
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