Impact-resistant and wear-resistant concrete for civil engineering and preparation method thereof: Fid-Bau Portal

Impact-resistant and wear-resistant concrete for civil engineering and preparation method thereof

LIU MINGMING

The invention provides impact-resistant and wear-resistant concrete for civil engineering and a preparation method thereof. The preparation method comprises the following steps: firstly, weighing raw materials in parts by weight, and ultrasonically dispersing the weighed fly ash, silica fume and nano corn starch in water accounting for 1/3 of the total water quantity to obtain a suspension A; ultrasonically dispersing the weighed large-aperture mesoporous silica and lithium polysilicate in water accounting for 1/3 of the total water amount to obtain a suspension B; then ultrasonically dispersing the weighed igneous rock fiber, nanocrystal cellulose and HF impact-resistant and wear-resistant special water reducing agent into water accounting for 1/3 of the total water quantity to obtain a suspension C; and finally, mixing Portland cement and river sand, respectively scattering the obtained suspension C, a graphene oxide solution, the suspension A and the suspension B in a stirring state, uniformly mixing and stirring, conveying the obtained mixed material into a finished product homogenizing bin by using an elevator, and homogenizing by using air generated at the bottom of the homogenizing bin to obtain the product. The concrete provided by the invention has excellent impact resistance and wear resistance, and is not easy to break.

一种土木工程用抗冲耐磨混凝土及其制备方法，先按重量份称取原材料，将称取的粉煤灰、硅灰、纳米玉米淀粉超声分散于总水量1/3的水中，得悬浮液A；再将称取的大孔径介孔二氧化硅、聚硅酸锂超声分散于总水量1/3的水中，得悬浮液B；然后将称取的火成岩纤维、纳米结晶纤维素、HF抗冲耐磨专用减水剂超声分散于总水量1/3的水中，得悬浮液C；最后将硅酸盐水泥、河砂混合后，搅拌状态下，分别撒入所得的悬浊液C、氧化石墨烯溶液、悬浮液A、悬浮液B，混合搅拌均匀后，用提升机将所得的混合物料输送入成品匀化仓中，通过匀化仓底部产生的空气均化后即得；本发明混凝土具有优良的抗冲耐磨性能，且不易断裂。

Zugriff

Download

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren