CAJ | 학술논문

为研究碱磷渣胶凝材料的高强机理,用扫描电子显微镜研究了碱磷渣胶凝材料硬化浆体结构及其与骨料界面的结构,用压汞法研究了硬化浆体孔结构,并与硅酸盐水泥浆体的结构进行了对比.结果表明,与硅酸盐水泥浆体相比,碱磷渣胶凝材料浆体结构非常致密,孔隙率很低,孔径细小,浆体与骨料界面结构紧密,不存在如硅酸盐水泥浆体与骨料界面区常存在的Ca(OH)_2定向生长及较非界面区疏松的情况.
위연구감린사효응재료적고강궤리,용소묘전자현미경연구료감린사효응재료경화장체결구급기여골료계면적결구,용압홍법연구료경화장체공결구,병여규산염수니장체적결구진행료대비.결과표명,여규산염수니장체상비,감린사효응재료장체결구비상치밀,공극솔흔저,공경세소,장체여골료계면결구긴밀,불존재여규산염수니장체여골료계면구상존재적Ca(OH)_2정향생장급교비계면구소송적정황.
In order to study the high-strength mechanism of alkali-activated phosphorous slag cement, the structures of the alkali-activated phosphorous cement paste and the paste-aggregate interface were studied using scanning electron microscopy, and the pore structure of the hardened paste was investigated using a mercury intrusion porosimeter. These features were compared with those of Portland cement paste. The results show that the structure of the alkali-activated phosphorous cement paste is dense with low porosity and a small pore size, compared with that of the Portland cement paste. The paste is tightly connected with aggregate, and there was no orderly development of Ca(OH)_2 crystals and a relatively looser structure at the paste-aggregate interface, which usually exists in Portland cement paste.