CAJ | 학술논문

根据恒温条件下饱和盐水溶液控制的恒定相对湿度，测试了苏州吴江地区近现代2种青砖的等温吸湿曲线．比较了不同样砖、不同年代青砖等温吸湿曲线的差异性，给出了平衡含湿量随相对湿度变化的拟合公式．结果表明：在7％～92％的相对湿度环境中，苏州清末青砖的平衡含湿量在2．84～27．65 g/kg之间，20世纪80年代青砖的平衡含湿量在1．45～10．14 g/kg 之间，苏州清末青砖的吸湿量是苏州20世纪80年代青砖的3倍以上．得到的公式及数据可应用于历史建筑砖墙“酥碱”程度的量化确定，并为研究中国传统建筑性能劣化机理及砖构建筑热湿耦合分析提供了基础数据支撑．
근거항온조건하포화염수용액공제적항정상대습도，측시료소주오강지구근현대2충청전적등온흡습곡선．비교료불동양전、불동년대청전등온흡습곡선적차이성，급출료평형함습량수상대습도변화적의합공식．결과표명：재7％～92％적상대습도배경중，소주청말청전적평형함습량재2．84～27．65 g/kg지간，20세기80년대청전적평형함습량재1．45～10．14 g/kg 지간，소주청말청전적흡습량시소주20세기80년대청전적3배이상．득도적공식급수거가응용우역사건축전장“소감”정도적양화학정，병위연구중국전통건축성능열화궤리급전구건축열습우합분석제공료기출수거지탱．
Based on constant relative humidity from the saturated salt-water solution under isothermal conditions,the isothermal sorption curves of early modern and modern bricks in Wujiang (Suzhou, China)are measured.The sorption property differences of various samples at different ages are com-pared,and their fitting formulae of the equilibrium moisture content of grey bricks changing with rel-ative humidity are presented.The results indicate that,with the relative humidity ranging from 7%to 92%,the equilibrium moisture contents of the late Qing grey bricks are between 2.84 and 27.65 g/kg and those of the 1980s grey bricks are between 1.45 and 10.14 g/kg.The equilibrium moisture con-tent of the late Qing grey bricks is about three times that of the 1980s grey bricks.The experimental data and formula can be applied to the quantitative analysis of the efflorescence of the historical brick wall,and provide basic data for the further study on the performance degradation mechanism of Chi-nese traditional architecture and the dynamical moisture characteristics of the building envelopes.