电子显微学报
電子顯微學報
전자현미학보
JOURNAL OF CHINESE ELECTRON MICROSCOPY SOCIETY
2014年
1期
40-45
,共6页
矿渣%微观结构%XRD%SEM%C-S-H凝胶
礦渣%微觀結構%XRD%SEM%C-S-H凝膠
광사%미관결구%XRD%SEM%C-S-H응효
slag%microstructure%X-ray diffraction%scanning electron microscope%C-S-H gel
利用XRD和SEM对掺矿渣复合胶凝材料硬化浆体微观结构进行了研究，结果显示：矿渣的掺入使胶凝材料中水泥的质量分数下降，矿渣反应消耗部分Ca（ OH）2，导致硬化浆体中Ca（ OH）2的含量降低，2 a龄期时掺70％矿渣样品中仍有Ca（ OH）2存在。矿渣掺入后，硬化浆体的早期微观结构会较为疏松，随着养护龄期的延长，大量低Ca/Si的C-S-H凝胶生成，使复合胶凝材料硬化浆体逐渐致密，且凝胶中含Al较多。
利用XRD和SEM對摻礦渣複閤膠凝材料硬化漿體微觀結構進行瞭研究，結果顯示：礦渣的摻入使膠凝材料中水泥的質量分數下降，礦渣反應消耗部分Ca（ OH）2，導緻硬化漿體中Ca（ OH）2的含量降低，2 a齡期時摻70％礦渣樣品中仍有Ca（ OH）2存在。礦渣摻入後，硬化漿體的早期微觀結構會較為疏鬆，隨著養護齡期的延長，大量低Ca/Si的C-S-H凝膠生成，使複閤膠凝材料硬化漿體逐漸緻密，且凝膠中含Al較多。
이용XRD화SEM대참광사복합효응재료경화장체미관결구진행료연구，결과현시：광사적참입사효응재료중수니적질량분수하강，광사반응소모부분Ca（ OH）2，도치경화장체중Ca（ OH）2적함량강저，2 a령기시참70％광사양품중잉유Ca（ OH）2존재。광사참입후，경화장체적조기미관결구회교위소송，수착양호령기적연장，대량저Ca/Si적C-S-H응효생성，사복합효응재료경화장체축점치밀，차응효중함Al교다。
The microstructure of cement-slag complex binder pastes was investigated by means of XRD and SEM. The results show that the cement content in complex binder decreased with slag content and the reaction of slag consumed some Ca(OH)2, so Ca(OH)2 content decreased with slag content in complex binder pastes. The Ca( OH) 2 crystal still exists in the complex binder pastes containing 70% content slag at the age of 2 years. By replacing part of cement with slag, the early microstructure of complex binder pastes becomes loosened. With the increase of curing ages, a great quantity of C-S-H gel with low Ca/Si ratio are generated in the complex binder pastes with slag and the gel contains much Al, which makes the hardened complex binder pastes denser gradually.
