DIN EN 12350-7:2017
新混凝土试验. 第7部分:空气含量压力法:德文和英文版本prEN 12350-7:2017

Testing fresh concrete - Part 7: Air content - Pressure methods; German and English version prEN 12350-7:2017

2019-09

 

 

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标准号
DIN EN 12350-7:2017
发布
2017年
发布单位
德国标准化学会
替代标准
DIN EN 12350-7:2019
当前最新
DIN EN 12350-7:2022
 
 
适用范围
This European Standard describes two methods for determination of air content of compacted fresh concrete, made with normal weight or relatively dense aggregate and having a declared value of D of the coarsest fraction of aggregates actually used in the concrete (Dmax) not greater than 63 mm. The test is not suitable for concretes with slumps less than 10 mm. Neither method is applicable to concretes made with lightweight aggregates, air cooled blast-furnace slag, or aggregates with high porosity, because of the magnitude of the aggregate correction factor, compared with the entrained air content of the concrete.

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