GB/T 39147-2020 Steel fiber for concrete

GB 175-2007 Common portland cement GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 238-2002 Metallic materials—Wire—Reverse bend test GB/T 238-2013 Metallic materials—Wire—Reverse bend test GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB/T 3077-1999 Alloy structure steels GB/T 3077-2015 Alloy structure steels GB/T 4240-1993 Stainless steel wires GB/T 4240-2009 Stainless steel wires GB/T 4240-2019 Stainless steel wires GB 8076-1997 Concrete admixtures GB 8076-2008 Concrete admixtures 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 JGJ 52-2006 Standard for technical requirements and test method of sand and crushed stone (or gravel) for ordinary concrete JGJ 63-2006 Standard of water for concrete GB/T 8076-2025 Concrete admixtures