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WebApr 3, 2024 · Since concrete is the most popular material in the world and cement is the primary binder used in concrete, these two sources of CO 2 are the main reason that cement contributes around 8 percent of global emissions. CSHub’s Executive Director Jeremy Gregory, however, sees concrete’s scale as an opportunity to mitigate climate … WebC. ENT systems shall be approved for use in fire resistance rated concrete floor-ceiling assemblies with fire resistance ratings up to 4 hours. 2.2 Raceways. B. ENT raceway shall be listed to CSA C22.2 No. 227.1 and manufactured in accordance with NEMA TC-13. 2.3 Fittings. A. ENT Fittings shall be manufactured of high-impact PVC. dickies scrubs australia online
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