To grasp, with respect to an element diffused in concrete, an accurate concentration distribution of the diffused element by numerical analysis.
The concentration distribution analysis method comprises determining the concentration distribution of the diffused element by numerical analysis of simultaneous equations of the following equation (1) including an effective diffusion coefficient for a space structure related to void structure and the following equations (2) and (3) related to nonlinear fixation of the diffused element. The equation (2) is represented by cb=αcβ. The equation (3) is represented by Ct=(c+cb), wherein c is a free concentration, cb is a fixed concentration, De is the effective diffusion coefficient, Ct is a total concentration, is the porosity of the concrete, and α and β are parameters related to the nonlinear fixation of the diffused element.
YAMADA KAZUO
MORI DAISUKE
JPN6010022068, 山田一夫， ＺＩＢＡＲＡ Ｈ， 細川佳史， 平尾宙, "各種試験で求めた塩化物イオン拡散係数を用いた塩害環境下におけるコンクリート構造物の寿命予測に関する一", セメント・コンクリート論文集, 2003, Ｎｏ．５７, Ｐａｇｅ．２８５−２９２, JP
JPN6010022069, 細川佳史， 森大介， 山田一夫, "電気泳動によるコンクリートの実効拡散係数を用いた塩化物イオンの浸透ならびにＲＣ構造物の寿命予測に関する", セメント技術大会講演要旨, 20040420, Ｖｏｌ．５８ｔｈ, Ｐａｇｅ．１１６−１１７, JP
Shigeki Ueda
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