セメント

[1003] EVALUATION OF CHEMICALLY BOUND WATER OF WHITE CEMENT BY 1H-NMR SOLID ECHO MEASUREMENT

櫨達斗¹, 丸山一平¹, 大窪貴洋², 栗原諒¹ (1.名古屋大学 2.千葉大学)

キーワード：1H-NMR relaxometry, 1H-NMR 緩和測定, cement paste, chemically bound water, QXRD analysis, TG, X線回折/リートベルト解析, セメントペースト, 結合水

Amount of chemically bound water, which is a result of cement hydration, is investigated with three measuring methods: thermal gravimetry analysis (TG), powder X-ray diffraction analysis with Rietveld quantification (QXRD) and 1H-NMR relaxometry. For the measurement procedures of TG and QXRD analysis, 1H-NMR relaxometry results showed well-agreement with those obtained by QXRD. As a result, 1H-NMR relaxometry using solid-echo (quadrature) would be alternative tool to quantify the chemically bound water in white cement paste systems.