钢纤维混凝土技术指标 |
添加时间:2017/5/16 17:24:32 浏览次数: |
钢纤维混凝土技术指标
Steel fibre concrete technical index
佛子岭大坝对地质要求较高,抗震能力较差,对温度变化和地基变形反应敏感。为恢复大坝的整体性,改善其应力条件,抑制裂缝的发展,加固方案要求垛内钢纤维混凝土喷射厚度为40~70cm,两端拱上下游面分别为10~15cm。钢纤维喷射混凝土总方量15000多m3。
The foiling dam is sensitive to temperature change and the deformation of the ground, because of high geological requirements and poor seismic capability. To restore the integrity of the dam and improve its stress condition, inhibit the development of crack, reinforcing scheme requirements within the crib thickness of steel fiber reinforced shotcrete is 40-70 cm, upstream and downstream ends of the arch plane of 10 ~ 15 cm respectively. The total amount of steel fiber shotcrete is more than 15,000 m3.
其主要的技术指标为:
Its main technical indicators are:
容重:2.3T/m3;抗压强度:4.0MPa;抗拉强度:3.5MPa;抗折强度:6MPa;弯曲韧度指数:η10为6~8,η30为18~24,η30/10为60~80;大板韧度试验变形能量900~1000J(欧洲标准)。
Weight: 2.3 T/m3; Compressive strength: 4.0 MPa; Tensile strength: 3.5 MPa; Tensile strength: 6MPa; Bending toughness index: eta 10 is 6 ~ 8, eta 30 is 18 ~ 24, eta 30/10 is 60 ~ 80; Large plate toughness test deformation energy 900 ~ 1000J (European standard).
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