Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Proportioning method of high-volume fly ash grouting raw material
The invention discloses a proportioning method of a high-volume fly ash grouting raw material. The high-volume fly ash grouting raw material comprises cement, fly ash and water, and the proportioningmethod comprises the following steps: S1, preliminary test; S2, carrying out an optimized proportioning test; S3, drawing a curve graph, determining a solidification effect change rule of the slurry according to the slurry bleeding rate and the slurry density increase amplitude, and summarizing the change rule; and S4, selecting a corresponding proportion in combination with the grouting requirement according to the change rule determined in the step S3. According to the method, the change rules of the consolidation effect, the coagulation time and the compressive strength are obtained throughthe free drainage test of the slurries with different proportions of the high-volume fly ash cement material so that the corresponding proportions can be selected according to the strength requirement of the grouting reinforced top plate and the coagulation time requirement of the slurries, and the method has important significance for ensuring the engineering quality and reducing the engineeringcost.
本发明公开一种高掺量粉煤灰注浆原料的配比方法，高掺量粉煤灰注浆原料包括水泥、粉煤灰和水，配比方法包括以下步骤：S1、初步试验；S2、优化配比试验；S3、绘制曲线图，根据浆液析水率和浆液密度增长幅度确定浆液的固结效果变化规律，总结变化规律；S4、根据步骤S3中确定的变化规律，结合注浆要求选择相应的配比。本发明通过大掺量粉煤灰水泥材料不同配比的浆料自由析水测试，得到固结效果、凝结时间和抗压强度变化规律，从而可以根据注浆加固顶板的强度要求和浆液的凝结时间要求选择相应的配比对确保工程质量，降低工程造价有重要意义。
Proportioning method of high-volume fly ash grouting raw material
The invention discloses a proportioning method of a high-volume fly ash grouting raw material. The high-volume fly ash grouting raw material comprises cement, fly ash and water, and the proportioningmethod comprises the following steps: S1, preliminary test; S2, carrying out an optimized proportioning test; S3, drawing a curve graph, determining a solidification effect change rule of the slurry according to the slurry bleeding rate and the slurry density increase amplitude, and summarizing the change rule; and S4, selecting a corresponding proportion in combination with the grouting requirement according to the change rule determined in the step S3. According to the method, the change rules of the consolidation effect, the coagulation time and the compressive strength are obtained throughthe free drainage test of the slurries with different proportions of the high-volume fly ash cement material so that the corresponding proportions can be selected according to the strength requirement of the grouting reinforced top plate and the coagulation time requirement of the slurries, and the method has important significance for ensuring the engineering quality and reducing the engineeringcost.
本发明公开一种高掺量粉煤灰注浆原料的配比方法，高掺量粉煤灰注浆原料包括水泥、粉煤灰和水，配比方法包括以下步骤：S1、初步试验；S2、优化配比试验；S3、绘制曲线图，根据浆液析水率和浆液密度增长幅度确定浆液的固结效果变化规律，总结变化规律；S4、根据步骤S3中确定的变化规律，结合注浆要求选择相应的配比。本发明通过大掺量粉煤灰水泥材料不同配比的浆料自由析水测试，得到固结效果、凝结时间和抗压强度变化规律，从而可以根据注浆加固顶板的强度要求和浆液的凝结时间要求选择相应的配比对确保工程质量，降低工程造价有重要意义。
Proportioning method of high-volume fly ash grouting raw material
一种高掺量粉煤灰注浆原料的配比方法
WANG KUN (Autor:in) / LI DAMING (Autor:in) / MENG FEI (Autor:in) / GUO YANGYANG (Autor:in)
27.10.2020
Patent
Elektronische Ressource
Chinesisch
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