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A platform for research: civil engineering, architecture and urbanism
Formula of modified copper tailings applied to cement and preparation method thereof
The invention provides a formula of modified copper tailings applied to cement and a preparation method thereof. The modified copper tailings comprise 13-19% of slag, 11-16% of sodium silicate, 12-16% of an active exciting agent, 5-9% of calcium oxide, 10-14% of alkali, 0.5-1% of a dispersing agent and the balance being copper tailings. The slag, sodium silicate and calcium oxide enable chemical components of the copper tailings to be similar to clinker components so that the copper tailings can be applied to the cement. The added active exciting agent can accelerate grinding and refining after the copper tailings and other auxiliary materials are ground, the strength of the copper tailings and the auxiliary materials after being mixed is improved, the added dispersing agent component can increase the contact area of the components, and the respective functions of the components can be more effectively exerted. According to the present invention, the breaking strength of the cement is greater than that of standard cement, the compressive strength is basically the same as that of standard cement, the copper tailings can be effectively utilized, the environmental protection and energy saving effects are realized, the clinker can be replaced so that the use amount of the clinker is reduced, and the problems that the cement filling material is difficult to cure and the later strength is low due to the high mud content and the fine particle size of the copper mine full tailings are solved. The cement can be effectively used for tail mine underground filling.
本发明提供一种铜尾砂改性应用于水泥的配方及其制备方法，矿渣13‑19％，硅酸钠11‑16％，活性激发剂12‑16％，氧化钙5‑9％，碱10‑14％，分散剂0.5‑1％，余量为铜尾砂，矿渣、硅酸钠、氧化钙可以使铜尾砂的化学成分近似于熟料的成分以用于水泥中，添加的活性激发剂使铜尾砂和其他辅料入磨之后能够加速粉磨细化，激铜尾砂和辅料混合后的强度，添加的分散剂组分能增加组分接触面积，更有效的发挥其各自的作用。本发明的抗折强度大于标准水泥，抗压强度和标准水泥基本持平，能够有效利用铜尾砂，具有环保和节能的作用，能够替代熟料从而减少熟料的用量，解决了铜山矿全尾砂含泥量高、颗粒细，导致水泥充填料难以固化，后期强度低的问题。能够有效用于尾矿井下充填。
Formula of modified copper tailings applied to cement and preparation method thereof
The invention provides a formula of modified copper tailings applied to cement and a preparation method thereof. The modified copper tailings comprise 13-19% of slag, 11-16% of sodium silicate, 12-16% of an active exciting agent, 5-9% of calcium oxide, 10-14% of alkali, 0.5-1% of a dispersing agent and the balance being copper tailings. The slag, sodium silicate and calcium oxide enable chemical components of the copper tailings to be similar to clinker components so that the copper tailings can be applied to the cement. The added active exciting agent can accelerate grinding and refining after the copper tailings and other auxiliary materials are ground, the strength of the copper tailings and the auxiliary materials after being mixed is improved, the added dispersing agent component can increase the contact area of the components, and the respective functions of the components can be more effectively exerted. According to the present invention, the breaking strength of the cement is greater than that of standard cement, the compressive strength is basically the same as that of standard cement, the copper tailings can be effectively utilized, the environmental protection and energy saving effects are realized, the clinker can be replaced so that the use amount of the clinker is reduced, and the problems that the cement filling material is difficult to cure and the later strength is low due to the high mud content and the fine particle size of the copper mine full tailings are solved. The cement can be effectively used for tail mine underground filling.
本发明提供一种铜尾砂改性应用于水泥的配方及其制备方法，矿渣13‑19％，硅酸钠11‑16％，活性激发剂12‑16％，氧化钙5‑9％，碱10‑14％，分散剂0.5‑1％，余量为铜尾砂，矿渣、硅酸钠、氧化钙可以使铜尾砂的化学成分近似于熟料的成分以用于水泥中，添加的活性激发剂使铜尾砂和其他辅料入磨之后能够加速粉磨细化，激铜尾砂和辅料混合后的强度，添加的分散剂组分能增加组分接触面积，更有效的发挥其各自的作用。本发明的抗折强度大于标准水泥，抗压强度和标准水泥基本持平，能够有效利用铜尾砂，具有环保和节能的作用，能够替代熟料从而减少熟料的用量，解决了铜山矿全尾砂含泥量高、颗粒细，导致水泥充填料难以固化，后期强度低的问题。能够有效用于尾矿井下充填。
Formula of modified copper tailings applied to cement and preparation method thereof
一种铜尾砂改性应用于水泥的配方及其制备方法
LIU GUOHUA (author) / SUN BO (author) / LI XIAOJING (author)
2022-01-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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