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Based on Cellular Automata concrete carbonation aggregate distribution effects of

Author: WeiKeYu
Tutor: ZhaoYanLin；LvHaiBo
School: Guangxi University
Course: Structural Engineering
Keywords: Concrete Carbonize Cellular Automata Random aggregate distribution
CLC: TU528
Type: Master's thesis
Year: 2005
Downloads: 138
Quote: 1
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Abstract


In this paper, cellular automata of this novel method for concrete carbonation problem and carbonized aggregate distribution effects were studied. First, according to concrete carbonation mechanism to establish a cellular automata model . The cellular automata and finite difference method, finite element method were compared , indicating that the cellular automata is more applicable and concrete carbonation calculations. By the carbonation depth calculation method has been carbonation depth and carbonation of time, based on experimental data of concrete carbonation depth predicted. Based on two-dimensional concrete coarse aggregate by grading and distribution of randomly generated , random delivery method , proposed a new simpler aggregates overlap judgment and aggregate minimum spacing generation method , the aggregate random distribution of a higher success rate and more efficient. This will simulate the aggregate random distribution of results with cellular automata combination , were considered coarse aggregate distribution in concrete carbonation computing , built of concrete from meso characteristics to the macroscopic properties of the bridge. On the aggregate content of different concrete carbonation conditions were calculated and compared the different aggregate content of the average depth of carbonation and carbonation time curve analyzes causes of the difference . Through the aggregate content and the diffusion coefficient of relationship surface fitting , indicating consider coarse aggregate distribution on the study of concrete properties of importance for engineering applications provide a practical formula.

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