Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for constructing fill dam by blending fly ash in valley type filter cake biscuit method red mud storage yard
The invention discloses a method for constructing a fill dam by blending fly ash in a valley type filter cake method red mud storage yard, which is characterized in that in the process of constructing the fill dam, fly ash is blended in red mud. The fly ash has certain potential chemical activity, active components in silicate and aluminate vitreous bodies contained in the fly ash can be subjected to a pozzolanic reaction with a small amount of calcium hydroxide and calcium oxide in the red mud when water exists at normal temperature and normal pressure, gelling substances with strength are generated, the mechanical indexes of the red mud can be improved, and the mechanical property of the red mud is improved. The stability of the dam body is improved. The fly ash generally does not contain water basically, and the blended fly ash absorbs water in the red mud, so that the water content of the red mud is rapidly reduced to be close to the optimal water content, and construction of a fill dam is facilitated. The raw materials are single, the cost is lower, the activity of the fly ash is stimulated by using alkalinity in the red mud, and the purpose of improving the strength and stability of the red mud dam is achieved.
本发明公开了一种山谷型滤饼干法赤泥堆场掺配粉煤灰构筑堆积坝方法，其特征在于：在构筑堆积坝过程中，在赤泥中掺配粉煤灰掺配粉煤灰。本发明的粉煤灰具有一定的潜在化学活性，在常温常压有水存在时，其含的硅酸盐、铝酸盐玻璃体中的活性组分，具有能与赤泥中少量的氢氧化钙、氧化钙发生火山灰反应，并生成具有强度的胶凝物质，可以改善赤泥力学指标，提高坝体的稳定性。粉煤灰通常基本不含水，掺配后粉煤灰将吸收赤泥中的水分，使得赤泥含水率迅速下降，接近最优含水率，利于构筑堆积坝。本发明的原料单一、成本更低，利用赤泥中的碱性激发粉煤灰的活性，实现提高赤泥堆坝强度和稳定性的目的。
Method for constructing fill dam by blending fly ash in valley type filter cake biscuit method red mud storage yard
The invention discloses a method for constructing a fill dam by blending fly ash in a valley type filter cake method red mud storage yard, which is characterized in that in the process of constructing the fill dam, fly ash is blended in red mud. The fly ash has certain potential chemical activity, active components in silicate and aluminate vitreous bodies contained in the fly ash can be subjected to a pozzolanic reaction with a small amount of calcium hydroxide and calcium oxide in the red mud when water exists at normal temperature and normal pressure, gelling substances with strength are generated, the mechanical indexes of the red mud can be improved, and the mechanical property of the red mud is improved. The stability of the dam body is improved. The fly ash generally does not contain water basically, and the blended fly ash absorbs water in the red mud, so that the water content of the red mud is rapidly reduced to be close to the optimal water content, and construction of a fill dam is facilitated. The raw materials are single, the cost is lower, the activity of the fly ash is stimulated by using alkalinity in the red mud, and the purpose of improving the strength and stability of the red mud dam is achieved.
本发明公开了一种山谷型滤饼干法赤泥堆场掺配粉煤灰构筑堆积坝方法，其特征在于：在构筑堆积坝过程中，在赤泥中掺配粉煤灰掺配粉煤灰。本发明的粉煤灰具有一定的潜在化学活性，在常温常压有水存在时，其含的硅酸盐、铝酸盐玻璃体中的活性组分，具有能与赤泥中少量的氢氧化钙、氧化钙发生火山灰反应，并生成具有强度的胶凝物质，可以改善赤泥力学指标，提高坝体的稳定性。粉煤灰通常基本不含水，掺配后粉煤灰将吸收赤泥中的水分，使得赤泥含水率迅速下降，接近最优含水率，利于构筑堆积坝。本发明的原料单一、成本更低，利用赤泥中的碱性激发粉煤灰的活性，实现提高赤泥堆坝强度和稳定性的目的。
Method for constructing fill dam by blending fly ash in valley type filter cake biscuit method red mud storage yard
一种山谷型滤饼干法赤泥堆场掺配粉煤灰构筑堆积坝方法
PAN SHUPEI (Autor:in) / HE PENG (Autor:in) / HE HAIJUN (Autor:in) / WEI YONGPENG (Autor:in) / CHAI HONGYUN (Autor:in) / WANG JU (Autor:in) / ZHOU XIAOSONG (Autor:in)
01.03.2024
Patent
Elektronische Ressource
Chinesisch
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