In order to use the strength and toughness index for design and apply of sfrc unified theoretical calculation formula of reinforcing and toughening of sfrc is given . experiments on bending toughness , breaking toughness and cube strength test results are carried out in connection with various kind of deformed steel fiber 初步給出建立鋼纖維混凝土增強、增韌統(tǒng)一理論計算公式思想,為鋼纖維混凝土強韌雙重指標在設(shè)計、選用鋼纖維混凝土中的應(yīng)用打下基礎(chǔ);針對不同種類異形鋼纖維進行了彎曲韌性、斷裂韌性、立方體抗壓強度等試驗。