GB/T 27794-2023 Precast concrete conduits for electric cable

GB/T 27794-2011 Socket type concrete conduits for electric cable

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 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB/T 1499.1-2008 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars GB/T 1499.1-2017 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars GB 1499.1-2024 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars 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/T 1596-1991 Fly ash used for cement and concrete GB/T 1596-2005 Fly ash used for cement and concrete GB/T 1596-2017 Fly ash used for cement and concrete GB 8076-1997 Concrete admixtures GB 8076-2008 Concrete admixtures GB 13788-2000 Cold rolled ribbed steel wires and bars GB/T 13788-2008 Cold rolled ribbed steel wires and bars GB/T 13788-2017 Cold rolled ribbed steel bars GB 13788-2024 Cold rolled ribbed steel bars GB/T 14684-2001 Sand for building GB/T 14684-2011 Sand for construction GB/T 14684-2022 Sand for construction GB/T 14685-2001 Pebble and crushed stone for building GB/T 14685-2011 Pebble and crushed stone for construction GB/T 14685-2022 Pebble and crushed stone for construction GB/T 17431.1-1998 Lightweight aggregates and its test methods—Part 1:Lightweight aggregates GB/T 17431.1-2010 Lightweight aggregates and its test methods—Part 1:Lightweight aggregates GB/T 18046-2000 Ground granulated blast furnace slag used for cement and concrete GB/T 18046-2008 Ground granulated blast furnace slag used for cement and concrete GB/T 18046-2017 Ground granulated blast furnace slag used for cement，mortar and concrete GB/T 21120-2007 Synthetic fibres for cement,cement mortar and concrete GB/T 21120-2018 Synthetic fibres for cement concrete and mortar GB/T 23265-2009 Chopped basalt fiber for cement,cement mortar and concrete GB/T 23265-2023 Chopped basalt fiber for cement concrete and mortar GB/T 38143-2019 Alkali-resistant glass fibres for cement concrete and mortar JC/T 946-2005 Concrete and steel reinforced concrete drainage pipe with rubber sealing ring GB 50119-2013 Code for concrete admixture application JGJ/T 12-2019 Technical standard for application of lightweight aggregate 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 50204-2015 Concrete Structure Construction Quality Acceptance Standards GB/T 51003-2014 Technical code for application of mineral admixture JGJ 55-2011 Specification for mix proportion design of ordinary concrete JGJ 63-2006 Standard of water for concrete JGJ/T 221-2010 Technical specification for application of fiber reinforced concrete GB/T 8076-2025 Concrete admixtures