Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Saltpetering-resistant high-content steel slag geopolymer mortar and preparation method thereof
The invention relates to an alkali efflorescence-resistant high-content steel slag geopolymer mortar and a preparation method, the geopolymer mortar comprises a cementing material and silane modified nano silicon dioxide, the addition amount of the silane modified nano silicon dioxide accounts for 1-5% of the total mass of the cementing material, the cementing material is composed of steel slag, fly ash and granulated blast furnace slag, and the addition amount of the silane modified nano silicon dioxide accounts for 1-5% of the total mass of the cementing material. The mass ratio of the steel slag in the cementing material is 10-40%; the silane modified nano silicon dioxide has hydrophobicity. The modified nano silicon dioxide KH-570 is used for modification, the modified nano silicon dioxide obtains waterproof performance and low surface energy, the modified nano silicon dioxide can be directly applied to geopolymer mortar in a dry mixing mode without ultrasonic dispersion to obtain good dispersion performance, and the compressive strength can be improved by 35% at most after 28 days.
本发明为一种抗泛碱的高掺量钢渣地聚物砂浆及制备方法，该地聚物砂浆包括胶凝材料和硅烷改性纳米二氧化硅，硅烷改性纳米二氧化硅的加入量占胶凝材料总质量的1％‑5％，胶凝材料为钢渣、粉煤灰、粒化高炉矿渣构成，胶凝材料中钢渣的质量占比为10‑40％；所述硅烷改性纳米二氧化硅具有疏水性。用改性纳米二氧化硅为KH‑570改性，经改性后纳米二氧化硅获得防水性能和较低表面能，不再需要超声分散即可直接干混应用于地聚物砂浆中获得良好的分散性能，28天抗压强度最高可提升35％。
Saltpetering-resistant high-content steel slag geopolymer mortar and preparation method thereof
The invention relates to an alkali efflorescence-resistant high-content steel slag geopolymer mortar and a preparation method, the geopolymer mortar comprises a cementing material and silane modified nano silicon dioxide, the addition amount of the silane modified nano silicon dioxide accounts for 1-5% of the total mass of the cementing material, the cementing material is composed of steel slag, fly ash and granulated blast furnace slag, and the addition amount of the silane modified nano silicon dioxide accounts for 1-5% of the total mass of the cementing material. The mass ratio of the steel slag in the cementing material is 10-40%; the silane modified nano silicon dioxide has hydrophobicity. The modified nano silicon dioxide KH-570 is used for modification, the modified nano silicon dioxide obtains waterproof performance and low surface energy, the modified nano silicon dioxide can be directly applied to geopolymer mortar in a dry mixing mode without ultrasonic dispersion to obtain good dispersion performance, and the compressive strength can be improved by 35% at most after 28 days.
本发明为一种抗泛碱的高掺量钢渣地聚物砂浆及制备方法，该地聚物砂浆包括胶凝材料和硅烷改性纳米二氧化硅，硅烷改性纳米二氧化硅的加入量占胶凝材料总质量的1％‑5％，胶凝材料为钢渣、粉煤灰、粒化高炉矿渣构成，胶凝材料中钢渣的质量占比为10‑40％；所述硅烷改性纳米二氧化硅具有疏水性。用改性纳米二氧化硅为KH‑570改性，经改性后纳米二氧化硅获得防水性能和较低表面能，不再需要超声分散即可直接干混应用于地聚物砂浆中获得良好的分散性能，28天抗压强度最高可提升35％。
Saltpetering-resistant high-content steel slag geopolymer mortar and preparation method thereof
一种抗泛碱的高掺量钢渣地聚物砂浆及制备方法
ZHANG MO (Autor:in) / HE MENG (Autor:in) / ZANG YONGQUAN (Autor:in)
07.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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