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最近我所对“干热养护”,法快速測定水泥标号进行了試驗研究,結果証明,这样測得的水泥标号与标准方法相差不大。現簡要介紹如下。一、試驗操作1.称取300克水泥試样,按标准稠度加水量制成水泥淨浆。2.将淨浆灌滿于2×2×2厘米的六格試模中,并用玻璃棒搗实(搗点不要重复);然后放在振动桌上振动(20～25秒钟內振动30次),用刀刮平,将模盖盖紧。3.試模在室溫下靜置(普通水泥2小时,矿渣水泥1小时),然后移入100—105℃的
Recently, I conducted a test study on the “dry heat curing” method and the rapid determination of cement labels. The results show that the measured cement labels have little difference with the standard methods. The brief introduction is as follows. First, the test operation 1. Weigh 300 grams of cement sample, according to the standard consistency of water volume made of cement paste. 2. Fill the slurry with a 2×2×2 cm six-grid test mold and compact it with a glass rod (do not repeat it); then place it on a vibrating table (vibrate 30 times in 20–25 seconds) ), Scrape with a knife and close the mold cover tightly. 3. The test mold is allowed to stand at room temperature (ordinary cement for 2 hours, slag cement for 1 hour) and then transferred to 100-105°C.