煤矸石質(zhì)似膏體充填膠結(jié)料的研制及水化機(jī)理研究
發(fā)布時間:2018-08-19 18:58
【摘要】:對樣品煤矸石進(jìn)行煅燒以激發(fā)其活性,通過熱重與差熱分析得出煤矸石的溫度活性區(qū)域,采用復(fù)合熱液蝕變的活化方法確定了制作煤矸石蝕變物料的最佳參數(shù),并以此為基礎(chǔ)再配以水泥熟料、礦渣、石膏等研制了符合水泥國家標(biāo)準(zhǔn)的32.5與42.5標(biāo)號的似膏體充填膠凝材料。采用XRD衍射分析與SEM電鏡掃描等研究手段,對其水化機(jī)理進(jìn)行了分析,確定了其前期強(qiáng)度來源于水泥熟料的水化作用,后期強(qiáng)度主要是因為大量堿鋁基硅酸鹽C-S-A-H凝膠的形成。
[Abstract]:The sample gangue was calcined to excite its activity. The temperature active region of coal gangue was obtained by thermogravimetric and differential thermal analysis. The optimum parameters for making coal gangue alteration material were determined by the method of composite hydrothermal alteration activation. On this basis, cement clinker, slag, gypsum and so on were used to develop paste filling cementing materials which accord with the national standard of cement (32.5 and 42.5). The hydration mechanism was analyzed by means of XRD diffraction analysis and SEM scanning electron microscope. It was confirmed that the early strength of the hydration of cement clinker was mainly due to the formation of a large number of alkaline aluminosilicate C-S-A-H gels.
【作者單位】: 中國礦業(yè)大學(xué)(北京)資源與安全工程學(xué)院;華北科技學(xué)院管理學(xué)院;
【基金】:國家自然科學(xué)基金資助項目(50474002) 北京市科技計劃項目(D07040300690000)
【分類號】:TD823.7
[Abstract]:The sample gangue was calcined to excite its activity. The temperature active region of coal gangue was obtained by thermogravimetric and differential thermal analysis. The optimum parameters for making coal gangue alteration material were determined by the method of composite hydrothermal alteration activation. On this basis, cement clinker, slag, gypsum and so on were used to develop paste filling cementing materials which accord with the national standard of cement (32.5 and 42.5). The hydration mechanism was analyzed by means of XRD diffraction analysis and SEM scanning electron microscope. It was confirmed that the early strength of the hydration of cement clinker was mainly due to the formation of a large number of alkaline aluminosilicate C-S-A-H gels.
【作者單位】: 中國礦業(yè)大學(xué)(北京)資源與安全工程學(xué)院;華北科技學(xué)院管理學(xué)院;
【基金】:國家自然科學(xué)基金資助項目(50474002) 北京市科技計劃項目(D07040300690000)
【分類號】:TD823.7
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