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一种确定混凝土含气量的新型仪器由 K.W.纳塞教授根据美国材料试验学会和加拿大标准协会的体积试验法相同原则下发明的,故它亦系采用体积法来测定新鲜混凝土含气量的一种设备,它主要由底部配衡体、锥形顶盖,螺旋帽盖和一个可以装入配衡体内的小皿器等四个部分所组成。装配后的仪器总高度约为343mm,其最大外径为114mm,重量约为3.6kg。它一般可用来进行最大粒径为25mm 骨料的混凝土试验,而对大骨料的混凝土,则可将其超径部分按照美国材料试验学会 C172方法,采用湿筛分
A new instrument for determining the gas content of concrete was invented by Professor KW Nassar under the same principle as the volumetric test method of the American Society for Testing and Materials and Canadian Standards Association. Therefore, it is also a kind of equipment that uses the volumetric method to measure the gas content of fresh concrete , It is mainly composed of the bottom with the balance body, conical top cover, screw cap and a can be loaded into the balance of the small apparatus such as the four parts of the composition. After assembly, the total height of the instrument is about 343mm, with a maximum outer diameter of 114mm and a weight of about 3.6kg. It can generally be used to carry out the maximum particle size of 25mm aggregate concrete test, and the large aggregate concrete, you can exceed the diameter of its part in accordance with the American Society for Testing and Materials C172 method, the use of wet screening