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A platform for research: civil engineering, architecture and urbanism
Supersulfated cement based on ironmaking slag, and preparation method thereof
The invention discloses a supersulfated cement based on ironmaking slag. The supersulfated cement is prepared from, by weight, 45-60 parts of blast furnace ironmaking slag, 40-50 parts of yellow phosphorus slag, 20-30 parts of ardealite powder and 20-30 parts of a composite activator; and the composite activator comprises, by weight, 40-70 parts of a biological alkaline activator and 30-60 parts of a clinker activator. The invention further provides a preparation method of the supersulfated cement based on the ironmaking slag. The preparation method comprises the following steps: S1, preparinga mixed raw material powder; S2 preparing a composite activator powder; S2, preparing a primary supersulfated cement powder; and S4, preparing the supersulfated cement. The alkaline microbial activepowder and the yellow phosphorus slag are utilized, so that the influence of the alkaline activator on supersulfated cement agglomeration is reduced; graphene powder is used for increasing pores of mixed powder of active Al2O3 and active SiO2, so that the overall strength of the supersulfated cement is improved; and pretreatment is carried out to achieve the purpose that raw material impurities donot influence the supersulfated cement.
本发明公开了一种基于炼铁渣的超硫酸盐水泥，采用以下重量组分的原料：45‑60份的高炉炼铁渣，40‑50份的黄磷渣，20‑30份的磷石膏粉，20‑30份的复合激活剂；所述的复合激活剂包括重量组分为40‑70份的生物碱性激活剂、30‑60份的熟料激活剂；本发明还提供一种基于炼铁渣的超硫酸盐水泥的制备方法，包括以下步骤：S1混合原料粉制备；S2复合激活剂粉制备；S3初级超硫酸盐水泥粉制备；S4超硫酸盐盐水泥制备；本发明的有益效果是：利用碱性微生物活性粉与黄磷渣，降低碱性激活剂对超硫酸盐水泥成块的影响；利用石墨烯粉增加活性AlO与活性SiO的掺和粉末的孔隙，增加超硫酸盐水泥的整体强度；通过预处理，实现原料杂质不影响超硫酸盐水泥的目的。
Supersulfated cement based on ironmaking slag, and preparation method thereof
The invention discloses a supersulfated cement based on ironmaking slag. The supersulfated cement is prepared from, by weight, 45-60 parts of blast furnace ironmaking slag, 40-50 parts of yellow phosphorus slag, 20-30 parts of ardealite powder and 20-30 parts of a composite activator; and the composite activator comprises, by weight, 40-70 parts of a biological alkaline activator and 30-60 parts of a clinker activator. The invention further provides a preparation method of the supersulfated cement based on the ironmaking slag. The preparation method comprises the following steps: S1, preparinga mixed raw material powder; S2 preparing a composite activator powder; S2, preparing a primary supersulfated cement powder; and S4, preparing the supersulfated cement. The alkaline microbial activepowder and the yellow phosphorus slag are utilized, so that the influence of the alkaline activator on supersulfated cement agglomeration is reduced; graphene powder is used for increasing pores of mixed powder of active Al2O3 and active SiO2, so that the overall strength of the supersulfated cement is improved; and pretreatment is carried out to achieve the purpose that raw material impurities donot influence the supersulfated cement.
本发明公开了一种基于炼铁渣的超硫酸盐水泥，采用以下重量组分的原料：45‑60份的高炉炼铁渣，40‑50份的黄磷渣，20‑30份的磷石膏粉，20‑30份的复合激活剂；所述的复合激活剂包括重量组分为40‑70份的生物碱性激活剂、30‑60份的熟料激活剂；本发明还提供一种基于炼铁渣的超硫酸盐水泥的制备方法，包括以下步骤：S1混合原料粉制备；S2复合激活剂粉制备；S3初级超硫酸盐水泥粉制备；S4超硫酸盐盐水泥制备；本发明的有益效果是：利用碱性微生物活性粉与黄磷渣，降低碱性激活剂对超硫酸盐水泥成块的影响；利用石墨烯粉增加活性AlO与活性SiO的掺和粉末的孔隙，增加超硫酸盐水泥的整体强度；通过预处理，实现原料杂质不影响超硫酸盐水泥的目的。
Supersulfated cement based on ironmaking slag, and preparation method thereof
一种基于炼铁渣的超硫酸盐水泥及其制备方法
LUO JIANHONG (author) / SHU AIHUA (author) / ZHOU GUIMING (author) / LU YANLEI (author)
2020-04-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Plaster of Paris activated supersulfated slag cement
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Investigations with supersulfated cement
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Influence of alkali lactates on hydration of supersulfated cement
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