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《建筑技术》1980年第8期发表了《用化学方法快速测定水泥标号》一文后,读者来信提出了一些问题,现综合解答如下: 一、本方法在3.5小时内能报出那几个指标本方法可同时测定三个试样,并在3.5小时内报出以下指标: (1)水泥中游离氧化钙(fCaO)的百分含量; (2)水泥的烧成及混合材掺量情况; (3)水泥安定性的推断; (4)水泥28天抗压强度(公斤/厘米~2)。二、怎样报出水泥中游离氧化钙(fCaO)的百分含量水泥熟料中游离氧化钙的含量与水泥质
After the article “Rapid Determination of Cement Labels by Chemical Methods” published in “Architecture Technology” (1980), readers wrote a number of questions. The comprehensive answers are as follows: 1. This method can report several indicators in 3.5 hours. This method can measure three samples at the same time and report the following indicators within 3.5 hours: (1) The percentage of free calcium oxide (fCaO) in the cement; (2) The burning of cement and the admixture of cement; (3) Inferring cement stability; (4) Cement compressive strength for 28 days (kg/cm~2). Second, how to report the percentage of free calcium oxide (fCaO) in cement The content of free calcium oxide in cement clinker and the quality of cement