鉄筋コンクリート補強された歴史的煉瓦造建造物に生じる白華現象のメカニズム : 煉瓦壁体中の水分移動に関するモデル実験と数値解析

概要

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It is important that clarifying water distribution and moisture movement in the brick masonry wall quantitatively, so as to design the mitigation method for efflorescence of historical brick masonry buildings reinforced with concrete. For this purpose, model wall specimen was built in the laboratory and observation of efflorescence was carried out. And the water distribution in the model wall was measured by using TDR method in the test. It was considered that the higher water content of inner brick masonry wall become, the more soluble salt moved from the interface of concrete to the surface of brick masonry wall. The numerical simulation of water movement in the model wall was performed with the Delphin4 program developed by TU Dresden. It seemed that the simulation results reproduced the tendency of measured moisture profiles in each position.
2006-10-30