WebEuropean equivalent grade for Steel 20 (GB ): C22 (1.0402) Chemical composition and properties of european equivalents (EN) for 20 (China, GB ): P235TR1 (1.0254) , P235GH (1.0345) , P355N (1.0562) , C22 (1.0402) , 20 (China, GB ) - European (EU, EN) and wordwide Steel equivalent grades. These comparison table is only intended as an … WebMar 11, 2015 · GB 175-2007. Common Portland cement. GB/T 1596-2005. Fly ash used for cement and concrete. GB 50086-2001. Specifications for bolt-shotcrete support. ASTM C191-08. Standard test methods for time of setting of hydraulic cement by Vicat needle. EN 14488-2-2006. Testing sprayed concrete. Part 2: compressive strength of young sprayed …
GB50086-2015 岩土锚杆与喷射混凝土支护工程技术规范
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