1.3.1 混凝土

表1-3-1混凝土强度标准值(N/mm2)强度种类符号混凝土强度等级C15C20C25C30C35C40C45C50C55C60C65C70C75C80轴心抗压轴心抗拉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混凝土强度设计值(N/mm2)强 ......（本文共 653 字 ）     [阅读本文]>>