巻号一覧
1979 巻 (1979)
- 163 号 p. 222-
- 162 号 p. 175-
- 161 号 p. 109-
- 160 号 p. 83-
- 159 号 p. 48-
- 158 号 p. 2-
前身誌
1979 巻, 163 号
選択された号の論文の6件中1～6を表示しています
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宋 宗澤, ジナワス スパトラ, 大門 正機, 近藤 連一1979 年 1979 巻 163 号 p. 222-226
発行日: 1979/11/01
公開日: 2011/03/07
ジャーナル フリーThe kinetics and mechanisms of the hydration of supersulfated slag cement were studied by measuring combined water, unreacted slag, free CaSO4 and the rate of heat liberation.
According to the result, it was found that the optimum lime content for activating supersulfated slag cement was very small (around 0.3%) and the hydration processes taking place below and upper the optimum lime content were very different from each other.抄録全体を表示PDF形式でダウンロード (576K) -
門間 英毅, 上野 精一1979 年 1979 巻 163 号 p. 226-232
発行日: 1979/11/01
公開日: 2011/08/16
ジャーナル フリーThe behavior of F- ions in 80°C-suspensions of α-Ca3 (PO4) 2 [C3P] or nonstoichiometric hydroxyapatite [DAp] powders in aqueous solutions of different F- concentrations ([F-] =19-9500 ppm) was investigated with respect to reaction changes of the solids and uptake of F- by solid.
C3P was more favorable for uptake of F- than DAp. Among different fluorides, the uptake increased in order of LiF<NaF≈KF<<NH4F at the same level of [F-]. It was able to reduce [F-] below 0.05ppm by controlling initial [F-] and solid/solution ratio of the suspension. F-ions acted as an inhibitor to the conversion of C3P to apatite. The order of depressing the conversion was as NH4F, KF, NaF, and LiF at the same [F-]. When C3P was heated in 0.05-0.1M [F-] solutions, nonstoichiometric fluorapatite, Ca10-y (HPO4) y (PO4) 6-y (F·OH) 2-y·mH2O, formed predominantly. On the other hand, above0.5M [F-] CaF2 with poor crystallinity formed instead. CaF2 could be detected electron-microscopically, even if X-ray diffraction method was not available for the detection. DAp in comparison with C3P tended to produce CaF2 even in low [F-].抄録全体を表示PDF形式でダウンロード (2048K) -
荒井 康夫1979 年 1979 巻 163 号 p. 233-242
発行日: 1979/11/01
公開日: 2011/03/07
ジャーナル フリーPDF形式でダウンロード (1589K) -
神谷 寛一, 作花 済夫1979 年 1979 巻 163 号 p. 243-253
発行日: 1979/11/01
公開日: 2011/03/07
ジャーナル フリーPDF形式でダウンロード (2237K) -
番場 猛夫, 針谷 宥1979 年 1979 巻 163 号 p. 253-258
発行日: 1979/11/01
公開日: 2011/03/07
ジャーナル フリーPDF形式でダウンロード (945K) -
森 正保1979 年 1979 巻 163 号 p. 259-261
発行日: 1979/11/01
公開日: 2011/03/07
ジャーナル フリーPDF形式でダウンロード (267K)
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