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A platform for research: civil engineering, architecture and urbanism
Method for preparing roadbed water-stable layer by utilizing copper slag in cooperation with multiple solid wastes
The invention discloses a method for preparing a roadbed water-stable layer by utilizing copper slag in cooperation with multiple solid wastes. The method comprises the following steps: uniformly mixing ardealite and fly ash, and grinding into a mixed material; the copper slag and waste soil and stone are mixed, crushed and screened, and graded broken stone is prepared; mixing the raw materials with cement, adding 3-6% of water, and uniformly stirring to prepare a water-stable material; and paving the homogenized water-stable material on a leveled field at a constant speed, paving, rolling and curing. The active component SiO2 contained in the copper slag can be subjected to weak pozzolanic reaction with a cement hydration product Ca (OH) 2 to generate a gelling substance with certain strength, so that the internal structure of the water-stable material is denser, and the strength of the compacted water-stable material is improved; the particle size of the copper slag is small, the particle size distribution of the powder can be optimized, powder particles can be dispersed, gaps among the broken stones can be filled, a compact net-shaped structure is formed, and therefore the mechanical property of the water-stable layer is improved; and resource utilization of a plurality of solid wastes such as copper slag, ardealite, fly ash and the like is realized.
本发明公开了一种利用铜渣协同多种固废制备路基水稳层的方法，包括以下步骤：将磷石膏与粉煤灰混合均匀后进行粉磨制成混合材料；将铜渣与废土石混合破碎筛分，制成级配碎石；将上述原料与水泥混合，加入3‑6％水搅拌均匀，制成水稳材料；将匀化后的水稳材料匀速摊铺在平整好的场地上，铺平碾压并养生。本发明铜渣中含有的活性成分SiO2能够与水泥水化产物Ca(OH)2发生弱火山灰反应，生成具有一定强度的胶凝性物质，使水稳材料内部结构更加密实，提高水稳材料压实后的强度；铜渣粒径较小，可以优化粉体的粒径分布，分散粉体颗粒，填充碎石之间的空隙，形成致密的网状结构，从而提高水稳层的力学性能；铜渣、磷石膏、粉煤灰等多种固废的资源化利用。
Method for preparing roadbed water-stable layer by utilizing copper slag in cooperation with multiple solid wastes
The invention discloses a method for preparing a roadbed water-stable layer by utilizing copper slag in cooperation with multiple solid wastes. The method comprises the following steps: uniformly mixing ardealite and fly ash, and grinding into a mixed material; the copper slag and waste soil and stone are mixed, crushed and screened, and graded broken stone is prepared; mixing the raw materials with cement, adding 3-6% of water, and uniformly stirring to prepare a water-stable material; and paving the homogenized water-stable material on a leveled field at a constant speed, paving, rolling and curing. The active component SiO2 contained in the copper slag can be subjected to weak pozzolanic reaction with a cement hydration product Ca (OH) 2 to generate a gelling substance with certain strength, so that the internal structure of the water-stable material is denser, and the strength of the compacted water-stable material is improved; the particle size of the copper slag is small, the particle size distribution of the powder can be optimized, powder particles can be dispersed, gaps among the broken stones can be filled, a compact net-shaped structure is formed, and therefore the mechanical property of the water-stable layer is improved; and resource utilization of a plurality of solid wastes such as copper slag, ardealite, fly ash and the like is realized.
本发明公开了一种利用铜渣协同多种固废制备路基水稳层的方法，包括以下步骤：将磷石膏与粉煤灰混合均匀后进行粉磨制成混合材料；将铜渣与废土石混合破碎筛分，制成级配碎石；将上述原料与水泥混合，加入3‑6％水搅拌均匀，制成水稳材料；将匀化后的水稳材料匀速摊铺在平整好的场地上，铺平碾压并养生。本发明铜渣中含有的活性成分SiO2能够与水泥水化产物Ca(OH)2发生弱火山灰反应，生成具有一定强度的胶凝性物质，使水稳材料内部结构更加密实，提高水稳材料压实后的强度；铜渣粒径较小，可以优化粉体的粒径分布，分散粉体颗粒，填充碎石之间的空隙，形成致密的网状结构，从而提高水稳层的力学性能；铜渣、磷石膏、粉煤灰等多种固废的资源化利用。
Method for preparing roadbed water-stable layer by utilizing copper slag in cooperation with multiple solid wastes
一种利用铜渣协同多种固废制备路基水稳层的方法
HUANG JIANHONG (author) / ZHU BIN (author) / SHU JUNYU (author) / YAN XIMING (author) / ZHANG GEN (author) / SI MEIYAN (author) / XIE XIN (author) / TIAN SENLIN (author)
2023-02-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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