几何尺寸与公差论坛

 找回密码
 注册
查看: 573|回复: 0

concrete sampling for compressive strength

[复制链接]
发表于 2009-9-8 12:34:35 | 显示全部楼层 |阅读模式
concrete sampling for compressive strength
according to aci and astm new/ revised standards on concrete sampling/ or testing, concrete sampling can be tested by using 4鈥?* 8鈥?cylinders instead of 6鈥?* 12鈥?to find the compressive strength of the concrete. according to my understanding, instead of 6鈥?* 12鈥?with 2 cylinders for 28 days break, we have to sample 3 cylinders with 4鈥?* 8鈥?
if this is correct as per the new standard version, i appreciate if someone can let me know the standard number/ or spec.
thank you
您需要登录后才可以回帖 登录 | 注册

本版积分规则

QQ|Archiver|小黑屋|几何尺寸与公差论坛

GMT+8, 2025-1-13 13:37 , Processed in 0.034766 second(s), 19 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2023 Discuz! Team.

快速回复 返回顶部 返回列表