一、使用仪器及原理砼搅拌机的搅拌性能是以砼拌合物的匀质性来评定的,测定砼拌合物的匀质性,首先要测出砼拌合物的含气量。GB 4477—84《混凝土搅拌机性能试验方法》中,已作出明确规定,使用气压式砼含气量测定仪,仪器的工作原理是根据在温度不变的条件下、一定质量的气体,压强和体积成反比的原理 First, the use of equipment and principles 砼 Stirring mixer’s stirring performance is based on the homogenization of hydrazine mixture to determine the homogeneity of hydrazine mixture, first to measure the enthalpy mixture gas content. GB 4477-84 “Concrete Mixer Performance Test Method”, has made it clear that the use of air pressure helium gas content measuring instrument, the instrument’s working principle is based on constant temperature, a certain quality of gas, pressure and volume into The principle of inverse proportion