Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underwater non-dispersible concrete flocculant and preparation method thereof
The invention provides an underwater non-dispersible concrete flocculant and a preparation method thereof, and belongs to the technical field of flocculants. The concrete is prepared from the following raw materials in parts by weight: 2-4 parts of polyacrylamide modified cellulose, 0.5-0.7 part of porous silicon dioxide nanoparticles, 0.2-0.4 part of fly ash, 0.7-1 part of silica fume and 3-5 parts of a polycarboxylate superplasticizer. Fresh concrete doped with the underwater non-dispersible concrete flocculant has good viscosity and flowability, has the characteristics of self-leveling and self-compacting after being poured into water, has good dispersion resistance, is low in concrete strength loss during underwater construction, reduces water quality pollution caused by pouring construction, and has the advantages of being good in water quality stability, good in water quality stability and the like. Wide application prospects are realized.
本发明提出了一种水下不分散混凝土絮凝剂及其制备方法，属于絮凝剂技术领域。由以下原料按重量份制备而成：聚丙烯酰胺改性纤维素2‑4份、多孔二氧化硅纳米颗粒0.5‑0.7份、粉煤灰0.2‑0.4份、硅灰0.7‑1份、聚羧酸减水剂3‑5份。本发明掺加水下不分散混凝土絮凝剂的新拌混凝土具有较好的粘稠性、流动性，而且混凝土在灌入水下后，具有自流平、自密实的特点，具有较好的抗分散性，在水下施工的混凝土强度损失较低，且减少了浇注施工时带来的水质污染，具有广阔的应用前景。
Underwater non-dispersible concrete flocculant and preparation method thereof
The invention provides an underwater non-dispersible concrete flocculant and a preparation method thereof, and belongs to the technical field of flocculants. The concrete is prepared from the following raw materials in parts by weight: 2-4 parts of polyacrylamide modified cellulose, 0.5-0.7 part of porous silicon dioxide nanoparticles, 0.2-0.4 part of fly ash, 0.7-1 part of silica fume and 3-5 parts of a polycarboxylate superplasticizer. Fresh concrete doped with the underwater non-dispersible concrete flocculant has good viscosity and flowability, has the characteristics of self-leveling and self-compacting after being poured into water, has good dispersion resistance, is low in concrete strength loss during underwater construction, reduces water quality pollution caused by pouring construction, and has the advantages of being good in water quality stability, good in water quality stability and the like. Wide application prospects are realized.
本发明提出了一种水下不分散混凝土絮凝剂及其制备方法，属于絮凝剂技术领域。由以下原料按重量份制备而成：聚丙烯酰胺改性纤维素2‑4份、多孔二氧化硅纳米颗粒0.5‑0.7份、粉煤灰0.2‑0.4份、硅灰0.7‑1份、聚羧酸减水剂3‑5份。本发明掺加水下不分散混凝土絮凝剂的新拌混凝土具有较好的粘稠性、流动性，而且混凝土在灌入水下后，具有自流平、自密实的特点，具有较好的抗分散性，在水下施工的混凝土强度损失较低，且减少了浇注施工时带来的水质污染，具有广阔的应用前景。
Underwater non-dispersible concrete flocculant and preparation method thereof
一种水下不分散混凝土絮凝剂及其制备方法
WANG LIWEN (Autor:in) / GUO BAOZONG (Autor:in) / MA QINGHAO (Autor:in) / MA YONGDONG (Autor:in)
08.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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