发布时间:2025-01-16 10:17:48
能。回弹仪有两排读数,一面是兆帕值,就是直接读出混凝土强度,还有一面是读数值是需要换算的,测读数能换算成千帕。回弹仪的基本原理是用弹簧驱动重锤,重锤以恒定的动能撞击与混凝土表面垂直接触的弹击杆,使局部混凝土发生变形并吸收一部分能量。
防雷引下线按照长度计算如果某一个引下点利用两根主筋作为引下线那么长度是否需要乘以2呢
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