石膏在加气砖生产中有哪些作用? - 抹面砂浆知识

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石膏在加气砖生产中有哪些作用?

来源:http://www.rare6.com 日期:2019-07-22 发布人:admin

  令人惊讶的是,济南石膏粉仍然具有这种功能,原来石膏在生产加气砖的产气过程中起到了调节作用。它是一种常用的胶结材料,石膏不仅作为气体过程的调节剂,而且由于参与水热合成反应可以提高产品的强度,减少收缩,提高抗冻性。石膏在加气砖生产中主要有以下几个方面:

  Surprisingly, gypsum still has this function. The original gypsum played a regulating role in the production of aerated brick. It is a commonly used cementing material. Gypsum not only acts as a regulator of gas process, but also can improve the strength, shrinkage and frost resistance of products by participating in hydrothermal synthesis reaction. Gypsum in the production of aerated brick mainly has the following aspects:
  首先,要参与铝粉的气体反应,当有石膏存在时,与铝粉在水中形成氢氧化铝反应形成硫酸钙铝酸盐。因此,在一些加气砖(如水泥-矿渣砂、水泥砂),当石膏在水泥消耗太多的铝粉的反应,快速设置可能会由于缺乏抑制chalate水泥石膏,石膏应补充道。
  Firstly, it is necessary to participate in the gas reaction of aluminium powder. When gypsum exists, it reacts with aluminium powder to form aluminium hydroxide in water to form calcium aluminate sulfate. Therefore, in some aerated bricks (such as cement-slag sand, cement sand), when gypsum consumes too much aluminium powder in cement, the rapid setting may be due to the lack of inhibition of Chalate cement gypsum, gypsum should be added.
  其次,抑制石灰的消化,延长其消化时间,降低其最终消化温度。
  Secondly, it restrains the digestion of lime, prolongs its digestion time and lowers its final digestion temperature.
济南石膏粉
  第三,可以抑制水石榴子石的生成,从而使游离的铝离子进入CSH(I)中,其中部分转化为铝代托勃莫来石,而AI2O3本身也能促进CSH(I)向托勃莫来石转化,阻止其向硬硅钙石转化,因而强度提高,收缩值降低。
  Thirdly, the formation of hydrogarnet can be inhibited, so that free aluminium ions can enter CSH (I), some of which can be converted into aluminium-substituted tobermorite, while AI2O3 itself can also promote the transformation of CSH (I) to tobermorite and prevent its transformation to anhydrite, thus increasing its strength and decreasing its shrinkage value.
  第四,提高坯体及制品的强度,改善收缩等性能。济南石膏粉在静停过程中的坯体内参与生成水化硫铝酸钙和C-S-H凝胶,使坯体强度提高。增强了坯体适应蒸压时温差应力和湿差应力的能力。在蒸压过程中,石膏可以促进水热反应的进行,使CSH(I)向托勃莫来石转化。
  Fourthly, the strength and shrinkage of green bodies and products should be improved. The gypsum participates in the formation of hydrated calcium sulphoaluminate and C-S-H gel during the static shutdown process, so as to increase the strength of the green body. It enhances the ability of green body to adapt to temperature and humidity differential stresses during autoclaving. In the autoclave process, gypsum can promote hydrothermal reaction and make CSH (I) transform to tobermorite.
  读了上面的叙述你是不明白了,石膏的作用确实很大,用途也很广。如果您有济南石膏粉的需求可以点击官网进行咨询:http://www.rare6.com/
  Read the above narrative, you do not understand, the role of gypsum is really great, the use of a wide range. If you need Jinan gypsum powder, you can click on the official website to consult: http://www.rare6.com/

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