<th id="5nh9l"></th><strike id="5nh9l"></strike><th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th><strike id="5nh9l"></strike>
<progress id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"><noframes id="5nh9l">
<th id="5nh9l"></th> <strike id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span>
<progress id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span><strike id="5nh9l"><noframes id="5nh9l"><strike id="5nh9l"></strike>
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"></span><span id="5nh9l"><video id="5nh9l"></video></span>
<th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th>
<progress id="5nh9l"><noframes id="5nh9l">

礦渣膠凝材料固結尾砂的微觀實驗

Microscopic experiment of consolidating tailings by slag cementing materials

  • 摘要: 用X射線衍射、掃描電鏡和熱重!差示掃描量熱方法表征了礦渣膠凝材料的水化產物和微觀結構,研究了礦渣膠凝材料對尾砂固結過程的影響.微觀實驗結果表明:礦渣膠凝材料的水化產物主要為水化硅酸鈣凝膠(C-S-H)、鈣礬石(AFt)及少量的帕水鈣石(Ca2Al4Si4O15(OH)2·4H2O)和沸石類礦物,隨著養護時間的延長,礦渣膠凝材料在水化過程中發生晶體結構重組和重排;尾砂中的方英石、云母和碳酸鹽類礦物(方解石、白云石等)是尾砂固結過程中的活性成分,能生成其他晶體礦物和膠凝狀礦物,這是導致固結體微觀結構不同的主要原因.

     

    Abstract: The hydration products and microstructure of slag cementing materials were characterized and the influence of slag cementing materials on the consolidation of tailings was investigated by using X-ray diffraction analysis, scanning electron microscopy and thermogravimetry-differential scanning calorimetry analysis. Microscopic experimental results indicate that the main hydration products of slag cementing materials are calcium silicate hydrate gel (C-S-H), ettringite (AFt), a small amount of partheite (Ca2Al4Si4O15(OH)2·4H2O) and zeolite minerals. It is found that the crystal structure recombines and rearranges in the hydration process with the increase of curing time. Cristobalite, mica and carbonate minerals (calcite, dolomite, etc.) are active components in the tailing consolidation process, which can generate new crystal and gelatinous minerals. This is the main reason for the difference of consolidation microstructure.

     

/

返回文章
返回
<th id="5nh9l"></th><strike id="5nh9l"></strike><th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th><strike id="5nh9l"></strike>
<progress id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"><noframes id="5nh9l">
<th id="5nh9l"></th> <strike id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span>
<progress id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span><strike id="5nh9l"><noframes id="5nh9l"><strike id="5nh9l"></strike>
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"></span><span id="5nh9l"><video id="5nh9l"></video></span>
<th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th>
<progress id="5nh9l"><noframes id="5nh9l">
259luxu-164