A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-cost high-efficiency chloride-free cement grinding aid and preparation method thereof
The invention discloses a low-cost high-efficiency chlorine-free cement grinding aid which comprises the following components in parts by mass: 15-20 parts of a compound reinforcing agent II; 8-10 parts of sodium acetate; and 12-15 parts of molasses. The invention also provides a preparation method of the low-cost and high-efficiency chlorine-free cement grinding aid. The preparation method comprises the following steps: S1, preparing the compound reinforcing agent type II; s2, adding molasses and a composite reinforcing agent II into a reaction container, and uniformly stirring and mixing to form a pre-mixture; and S3, adding sodium acetate into the pre-mixture, uniformly stirring and mixing, and adding water until the sodium acetate is completely dissolved. The molasses and the composite reinforcing agent II are firstly mixed, and then the sodium acetate is added, so that the components can be better cooperated and matched, the grinding aiding effect of the grinding aid can be better improved, the grinding efficiency of cement aggregate is higher, and the screen residue of cement can be better reduced; expensive raw materials such as triethanolamine, triisopropanolamine and diethanolisopropanolamine are not added into the prepared grinding aid, so that the cost of the grinding aid is greatly reduced.
本发明公开了一种低成本高效无氯水泥助磨剂，包括以下质量份数的组分：复合增强剂Ⅱ型15‑20份；醋酸钠8‑10份；糖蜜12‑15份。同时提供一种低成本高效无氯水泥助磨剂的制备方法，包括以下步骤：S1、制备复合增强剂Ⅱ型；S2、在反应容器中加入糖蜜、复合增强剂Ⅱ型，搅拌混合均匀，形成预混合物；S3、将醋酸钠加入至预混合物中，搅拌混合均匀，加水至完全溶解。本发明先混合糖蜜、复合增强剂Ⅱ型，再加入醋酸钠，有利于各组分更好地互相协同配合，从而有利于更好地提高助磨剂的助磨效果，使得水泥骨料的研磨效率更高，有利于更好地减小水泥的筛余量；制备的助磨剂中不加三乙醇胺、三异丙醇胺和二乙醇单异丙醇胺等昂贵的原材料，从而大幅降低助磨剂成本。
Low-cost high-efficiency chloride-free cement grinding aid and preparation method thereof
The invention discloses a low-cost high-efficiency chlorine-free cement grinding aid which comprises the following components in parts by mass: 15-20 parts of a compound reinforcing agent II; 8-10 parts of sodium acetate; and 12-15 parts of molasses. The invention also provides a preparation method of the low-cost and high-efficiency chlorine-free cement grinding aid. The preparation method comprises the following steps: S1, preparing the compound reinforcing agent type II; s2, adding molasses and a composite reinforcing agent II into a reaction container, and uniformly stirring and mixing to form a pre-mixture; and S3, adding sodium acetate into the pre-mixture, uniformly stirring and mixing, and adding water until the sodium acetate is completely dissolved. The molasses and the composite reinforcing agent II are firstly mixed, and then the sodium acetate is added, so that the components can be better cooperated and matched, the grinding aiding effect of the grinding aid can be better improved, the grinding efficiency of cement aggregate is higher, and the screen residue of cement can be better reduced; expensive raw materials such as triethanolamine, triisopropanolamine and diethanolisopropanolamine are not added into the prepared grinding aid, so that the cost of the grinding aid is greatly reduced.
本发明公开了一种低成本高效无氯水泥助磨剂，包括以下质量份数的组分：复合增强剂Ⅱ型15‑20份；醋酸钠8‑10份；糖蜜12‑15份。同时提供一种低成本高效无氯水泥助磨剂的制备方法，包括以下步骤：S1、制备复合增强剂Ⅱ型；S2、在反应容器中加入糖蜜、复合增强剂Ⅱ型，搅拌混合均匀，形成预混合物；S3、将醋酸钠加入至预混合物中，搅拌混合均匀，加水至完全溶解。本发明先混合糖蜜、复合增强剂Ⅱ型，再加入醋酸钠，有利于各组分更好地互相协同配合，从而有利于更好地提高助磨剂的助磨效果，使得水泥骨料的研磨效率更高，有利于更好地减小水泥的筛余量；制备的助磨剂中不加三乙醇胺、三异丙醇胺和二乙醇单异丙醇胺等昂贵的原材料，从而大幅降低助磨剂成本。
Low-cost high-efficiency chloride-free cement grinding aid and preparation method thereof
一种低成本高效无氯水泥助磨剂及其制备方法
LEI FAQING (author)
2022-08-12
Patent
Electronic Resource
Chinese
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