A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dry powder cement grinding aid and preparation method thereof
The invention discloses a dry powder cement grinding aid. The dry powder cement grinding aid is prepared from the following raw materials in percentage by weight: 60-70% of gypsum, 2-10% of fly ash, 5-20% of anhydrous sodium sulfate, 10-20% of an alcohol amine compound, 0.5-2% of a water reducing agent, 1-3% of a dispersing agent, 0.2-1% of a surfactant and 1-5% of a flame retardant. According to the prepared dry powder cement grinding aid, a large amount of industrial waste is utilized, compared with similar products, the production process is simple, investment is small, cost is low, application and popularization are facilitated, the finally prepared product has the good condition and performance, meanwhile, the flame retardant is further added into the formula of the dry powder cement grinding aid, and the finished grinding aid has good flame retardance and can prevent powder explosion. According to the preparation method of the dry powder cement grinding aid, the specific surface area of the prepared dry powder cement grinding aid is 340-360 m<2>/kg, the fineness is about 15%, distribution is uniform, the product percent of pass is high, and the 3-day strength and 28-day strength are improved by 18% or above compared with similar products.
本发明公开了一种干粉水泥助磨剂，所述的干粉水泥助磨剂包括以下重量百分比的原料制成：石膏60‑70％、粉煤灰2‑10％、无水硫酸钠5‑20％、醇胺类化合物10‑20％、减水剂0.5‑2％、分散剂1‑3％、表面活性剂0.2‑1％、阻燃剂1‑5％；本发明制备的干粉水泥助磨剂，大量利用了工业废料，与类似产品比，生产工艺简单，投资少，成本低，有利于推广应用，并且最终制备的产品均具有良好的品相和性能，同时在干粉水泥助磨剂的配方中还添加了阻燃剂，成品助磨剂具有良好的阻燃性，能够防止出现粉末爆炸的情况。通过一种干粉水泥助磨剂的配置方法，制备的干粉水泥助磨剂比表面积在340‑360㎡/kg，细度在15％左右，分布较为均匀，产品合格率高，并且3天强度以及28天强度相较于同类产品提高了18％以上。
Dry powder cement grinding aid and preparation method thereof
The invention discloses a dry powder cement grinding aid. The dry powder cement grinding aid is prepared from the following raw materials in percentage by weight: 60-70% of gypsum, 2-10% of fly ash, 5-20% of anhydrous sodium sulfate, 10-20% of an alcohol amine compound, 0.5-2% of a water reducing agent, 1-3% of a dispersing agent, 0.2-1% of a surfactant and 1-5% of a flame retardant. According to the prepared dry powder cement grinding aid, a large amount of industrial waste is utilized, compared with similar products, the production process is simple, investment is small, cost is low, application and popularization are facilitated, the finally prepared product has the good condition and performance, meanwhile, the flame retardant is further added into the formula of the dry powder cement grinding aid, and the finished grinding aid has good flame retardance and can prevent powder explosion. According to the preparation method of the dry powder cement grinding aid, the specific surface area of the prepared dry powder cement grinding aid is 340-360 m<2>/kg, the fineness is about 15%, distribution is uniform, the product percent of pass is high, and the 3-day strength and 28-day strength are improved by 18% or above compared with similar products.
本发明公开了一种干粉水泥助磨剂，所述的干粉水泥助磨剂包括以下重量百分比的原料制成：石膏60‑70％、粉煤灰2‑10％、无水硫酸钠5‑20％、醇胺类化合物10‑20％、减水剂0.5‑2％、分散剂1‑3％、表面活性剂0.2‑1％、阻燃剂1‑5％；本发明制备的干粉水泥助磨剂，大量利用了工业废料，与类似产品比，生产工艺简单，投资少，成本低，有利于推广应用，并且最终制备的产品均具有良好的品相和性能，同时在干粉水泥助磨剂的配方中还添加了阻燃剂，成品助磨剂具有良好的阻燃性，能够防止出现粉末爆炸的情况。通过一种干粉水泥助磨剂的配置方法，制备的干粉水泥助磨剂比表面积在340‑360㎡/kg，细度在15％左右，分布较为均匀，产品合格率高，并且3天强度以及28天强度相较于同类产品提高了18％以上。
Dry powder cement grinding aid and preparation method thereof
一种干粉水泥助磨剂及其配置方法
CAO JIANMING (author) / QIAN YONGLIN (author) / GAO PENGXIANG (author) / MENG FANQIN (author) / CAO JINPEI (author)
2022-01-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Cement grinding aid, preparation method thereof and cement
| European Patent Office | 2022
Cement grinding aid, preparation method thereof and cement
| European Patent Office | 2023
Automatic production equipment for powder cement grinding aid and preparation method thereof
| European Patent Office | 2015