Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-alkali anti-freezing Portland cement for plateau regions and preparation method thereof
The invention relates to low-alkali anti-freezing Portland cement for plateau regions and a preparation method thereof, the preparation method comprises the following steps: step 1, weighing allyl alcohol glycidyl ether, adding the allyl alcohol glycidyl ether into absolute ethyl alcohol, adding 2, 3-dimercaptopropanol, adding a photoinitiator, and reacting under the action of ultraviolet light to obtain thioetherified glycidyl ether; 2, thioetherified glycidyl ether and amino-polyethylene glycol-maleimide are mixed in absolute ethyl alcohol, the mixture is heated and stirred for a reaction, and a modified grinding aid is obtained; and step 3, adding the low-alkali cement clinker, fly ash, gypsum and the modified grinding aid into a ball mill, carrying out grinding treatment, and after grinding is finished, sieving to obtain the low-alkali anti-freezing Portland cement. The Portland cement prepared by the invention is prepared by mixing and grinding the low-alkali cement clinker, the fly ash and the gypsum by using the modified grinding aid. Experimental application shows that the low-alkali cement prepared by the invention has relatively high strength, crack resistance and freezing resistance.
本发明涉及一种用于高原地区低碱抗冻硅酸盐水泥及其制备方法，制备方法包括以下步骤：步骤1，称取烯丙醇缩水甘油醚加入无水乙醇内，加入2,3‑二巯基丙醇，加入光引发剂，在紫外光的作用下反应，得到硫醚化缩水甘油醚；步骤2，将硫醚化缩水甘油醚和氨基‑聚乙二醇‑马来酰亚胺混合在无水乙醇内，升温搅拌反应，得到改性助磨剂；步骤3，将低碱水泥熟料、粉煤灰、石膏和改性助磨剂加入至球磨机内，进行粉磨处理，粉磨结束后，过筛，即得到低碱抗冻硅酸盐水泥。本发明制备的硅酸盐水泥是使用改性助磨剂对低碱水泥熟料、粉煤灰、石膏混合研磨后制备得到。而经过实验应用发现，本发明制备的低碱水泥具有较高的强度、抗裂性以及抗冻性。
Low-alkali anti-freezing Portland cement for plateau regions and preparation method thereof
The invention relates to low-alkali anti-freezing Portland cement for plateau regions and a preparation method thereof, the preparation method comprises the following steps: step 1, weighing allyl alcohol glycidyl ether, adding the allyl alcohol glycidyl ether into absolute ethyl alcohol, adding 2, 3-dimercaptopropanol, adding a photoinitiator, and reacting under the action of ultraviolet light to obtain thioetherified glycidyl ether; 2, thioetherified glycidyl ether and amino-polyethylene glycol-maleimide are mixed in absolute ethyl alcohol, the mixture is heated and stirred for a reaction, and a modified grinding aid is obtained; and step 3, adding the low-alkali cement clinker, fly ash, gypsum and the modified grinding aid into a ball mill, carrying out grinding treatment, and after grinding is finished, sieving to obtain the low-alkali anti-freezing Portland cement. The Portland cement prepared by the invention is prepared by mixing and grinding the low-alkali cement clinker, the fly ash and the gypsum by using the modified grinding aid. Experimental application shows that the low-alkali cement prepared by the invention has relatively high strength, crack resistance and freezing resistance.
本发明涉及一种用于高原地区低碱抗冻硅酸盐水泥及其制备方法，制备方法包括以下步骤：步骤1，称取烯丙醇缩水甘油醚加入无水乙醇内，加入2,3‑二巯基丙醇，加入光引发剂，在紫外光的作用下反应，得到硫醚化缩水甘油醚；步骤2，将硫醚化缩水甘油醚和氨基‑聚乙二醇‑马来酰亚胺混合在无水乙醇内，升温搅拌反应，得到改性助磨剂；步骤3，将低碱水泥熟料、粉煤灰、石膏和改性助磨剂加入至球磨机内，进行粉磨处理，粉磨结束后，过筛，即得到低碱抗冻硅酸盐水泥。本发明制备的硅酸盐水泥是使用改性助磨剂对低碱水泥熟料、粉煤灰、石膏混合研磨后制备得到。而经过实验应用发现，本发明制备的低碱水泥具有较高的强度、抗裂性以及抗冻性。
Low-alkali anti-freezing Portland cement for plateau regions and preparation method thereof
一种用于高原地区低碱抗冻硅酸盐水泥及其制备方法
ZHOU JIE (Autor:in) / DANZENG DUNZHU (Autor:in) / CIREN QUNPEI (Autor:in) / LI MIN (Autor:in) / ZENG CONG (Autor:in)
13.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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