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	含有活性或惰性掺合料的复合胶凝材料硬化浆体的微观结构特征
	阎培渝 ; 张庆欢 ; YAN Peiyu ; ZHANG Qinghuan
	2010-06-07 ; 2010-06-07
关键词	复合胶凝材料 孔隙率 微观形貌 粉煤灰 石英粉 complex binder porosity morphology fly ash quartz powder TU599
其他题名	MICROSTRUCTURAL CHARACTERISTICS OF COMPLEX BINDER PASTE CONTAINING ACTIVE OR INERT MINERAL ADMIXTURES
中文摘要	用压汞法测定了不同温度条件下养护的含有粉煤灰或石英粉的复合胶凝材料硬化浆体的孔隙率。用扫描电镜观察了硬化浆体的微观形貌,同时测定了各种组成的复合胶凝材料的净浆强度。常温水化初期,活性与惰性矿物掺合料都只具有物理填充的作用,硬化浆体的孔隙率和强度由矿物掺合料的掺量所决定。高温水化条件下粉煤灰的火山灰反应提前发生。随水化龄期延长,粉煤灰逐渐发生火山灰反应,使硬化浆体结构密实,其强度逐步提高。活性与惰性矿物掺合料对复合胶凝材料浆体结构与性能的影响的差异在水化后期逐渐显现。; Porosity of hardened complex binder pastes containing fly ash or quartz powder cured under different temperature regimes was determined using mercury intrusion porosimetry.The morphology of hardened pastes was investigated using a scanning electron microscope.The strength of pastes was measured.There was only a physical filling effect for both active and inert mineral admixtures during the initial hydration period.The porosity and strength of the pastes were controlled by the proportion of mineral admixtures.High hydration temperature advances the pozzolanic reaction of fly ash.With the prolongation of hydrating age the pozzolanic reac-tion of fly ash takes place,which densifies the pastes and enhances the development of their strength.The diff-erence of influence between active mineral admixture and inert ones on the structure and properties of complex binders emerges gradually in the later hydration period.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/46978]
专题	清华大学
推荐引用方式 GB/T 7714	阎培渝,张庆欢,YAN Peiyu,等. 含有活性或惰性掺合料的复合胶凝材料硬化浆体的微观结构特征[J],2010, 2010.
APA	阎培渝,张庆欢,YAN Peiyu,&ZHANG Qinghuan.(2010).含有活性或惰性掺合料的复合胶凝材料硬化浆体的微观结构特征..
MLA	阎培渝,et al."含有活性或惰性掺合料的复合胶凝材料硬化浆体的微观结构特征".(2010).

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