GB/T 39963-2021 Technical specification on C80~C100 concrete shaft lining applied in vertical freezing shaft

GB/T 50082 GB 175-1999 Portland cement and ordinary Portland cement GB 175-2007 Common portland cement GB 175-2023 Common portland cement GB/T 1499.2-2007 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars GB/T 1499.2-2018 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars GB 1499.2-2024 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars GB 8076-1997 Concrete admixtures GB 8076-2008 Concrete admixtures GB/T 18736-2002 Mineral admixtures for high strength and high performance concrete GB/T 18736-2017 Mineral admixtures for high strength and high performance concrete GB 50010-2010 Code for design of concrete structures GB 50119-2013 Code for concrete admixture application GB 50384-2016 Code for design of coal mine shaft and chamber JGJ/T 241-2011 Technical specification for application of manufactured sand concrete GB/T 50080-2016 Standard for test method of performance on ordinary fresh concrete GB/T 50081-2019 Standard for test methods of concrete physical and mechanical properties GB/T 50107-2010 Standard for evaluation of concrete compressive strength GB 50164-2011 Standard for quality control of concrete GB 50213-2010 Code for acceptance of shaft sinking and drifting of coal mine GB/T 50511-2022 Mine Shaft Construction Standards JGJ 52-2006 Standard for technical requirements and test method of sand and crushed stone (or gravel) for ordinary concrete JGJ 55-2011 Specification for mix proportion design of ordinary concrete JGJ 63-2006 Standard of water for concrete GB/T 8076-2025 Concrete admixtures