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全自動混凝土攪拌時間有什么要求呢?
來源:http://www.wtiqradio.com發布日期:2021-05-24   瀏覽量:
 
一般情況下,混凝土的勻質性是隨著攪拌時間的延長而提高,但攪拌時間超過某一限度后,混凝土的勻質性便無明顯改 善了。所以混凝土全自動攪拌車要對攪拌時間有嚴格的要求,這樣對混凝土的質量及生產率都很有好處。下面中科以多年的行業經驗來為大家總結了混凝土攪拌時間要求規定,以供大家參考。
In general, the homogeneity of concrete is improved with the extension of mixing time, but when the mixing time exceeds a certain limit, the homogeneity of concrete is not significantly improved. Therefore, the automatic concrete mixer should have strict requirements on mixing time, which is good for the quality and productivity of concrete. Following years of industry experience, Zhongke summarizes the requirements of concrete mixing time for your reference.
混凝土攪拌時間要求規定:
Concrete mixing time requirements:
一、人工攪拌:
1、 Manual mixing:
攪拌時力求動作敏捷,攪拌時間從加水時算起,應大致符合下列規定:
The stirring time should be calculated from the time of adding water, which should roughly meet the following
requirements:
全自動混凝土攪拌機
攪拌物體積為30L以下時4~5min(分鐘)
4 ~ 5min (min) when the volume of mixture is less than 30L
攪拌物體積為30L--50L時5~9min
5 ~ 9min when the volume of mixture is 30l-50l
攪拌物體積為51L--75L時9~12min
When the volume of the mixture is 51l-75l, it takes 9-12min
拌好后,根據試驗要求,立即做坍落度測定或試件成型。從開始加水時算起,全部操作須在30min內完成。
After mixing, according to the test requirements, slump measurement or specimen molding shall be conducted immediately. From the beginning of adding water, all operations must be completed within 30 minutes.
二、機械攪拌:
2、 Mechanical mixing:
先預拌一次,即先涮膛,以免正式拌和時影響拌合物的配合比。開動攪拌機,向攪拌機內依次加入石子、砂和水泥,干拌均勻,再將水徐徐加入,全部加料時間不超過2min,水全部加入后,繼續拌和2min。
Premix first, that is, rinse the chamber first, so as not to affect the mix proportion of the mixture during formal mixing. Start the mixer, add stones, sand and cement to the mixer in turn, dry mix evenly, and then add water slowly. The total feeding time shall not exceed 2 min. after all water is added, continue to mix for 2 min.
將拌合物自攪拌機卸出,傾倒在拌打撈上,再經人工拌和1~2min,即可做坍落度測定或試件成型。從開始加水時算起,全部操作一定在30min內完成。
The mixture is discharged from the mixer, dumped on the mixer, and then mixed by hand for 1 ~ 2min to measure the slump or form the specimen. From the beginning of adding water, all operations must be completed within 30 minutes.
以上分享的混凝土攪拌時間要求規定相信大家都已了解,大家不妨按照以上方法來規定攪拌時間或是用自己實驗出來的佳時間來規定即可。
I believe you all know the concrete mixing time requirements shared above. You may as well specify the mixing time according to the above methods or use the good time from your own experiments.
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