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Microstructural control and hydration of novel micro-dendritic clinkers with CaO/SiO2=1.4
【文件类型】 【消费金额】3 【文章页数】10 【会员操作】  
【文章作者】Santos, R. L.;Horta, R. B.;Pereira, J.;Nunes, T. G.;Rocha, P.;Canongia Lopes, J. N.;Colaco, R.
【文章摘要】      In this paper we describe the production of CaO/SiO2-based hydraulic binders formed of dendritic belite embedded in an amorphous phase. These hydraulic binders are produced by a process involving heating the raw materials with a specified CaO/SiO2 ratio to a temperature bellow the liquidus surface, followed by a two-step cooling ramp, in order to obtain during solidification a dendritic morphology of the crystalline phase. After milling the clinker obtained by this process, and by adding up to 25% of water, the paste sets showing mechanical resistances that went up to 4 times higher the values obtained for a reference round shape belite clinker. This result opens the possibility of developing a novel belite-based clinker, that may lead to a relevant reduction of the CO2 emissions, as compared to common alitic clinkers. (C) 2015 Elsevier Ltd. All rights reserved.
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【卷】76 【ISSUE】 【ISSUEID】815C0068     【文章期份】2015    【发布日期】2016/8/11 17:02:54    点击率:0    打印    关闭
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