1.3.1 混凝土

表1-3-1混凝土強度標(biāo)準(zhǔn)值(N/mm2)強度種類符號混凝土強度等級C15C20C25C30C35C40C45C50C55C60C65C70C75C80軸心抗壓軸心抗拉fckftk10.01.2713.41.5416.71.7820.12.0123.42.2026.82.4029.62.5132.42.6535.52.7438.52.8541.52.9344.53.0047.43.0550.23.10表1-3-2混凝土強度設(shè)計值(N/mm2)強 ......（本文共 653 字 ）     [閱讀本文] >>