CAJ | 학술논문

建筑材料的力学性质、相变蓄能、生态环保、再生利用等受到广泛关注，但很少有关于不同建筑材料对汞的吸附研究。通过对水泥砖、泡沫混凝土、红砖、骨料、砂石等5种建筑材料细粉和水泥混凝土立方体标准试块置于恒温室内进行气态汞吸附模拟，探索出最易受汞污染的建筑材料和水泥混凝土块的受污染深度。通过XRD和XRF对5种建筑材料分析得出其成分以SiO2为主，其次是CaCO3。5种建筑材料进行汞吸附实验结果表明，整体上粒径越小吸附量越大，但不同材料之间存在差异性，红砖是最容易受污染的建筑材料，其次泡沫混凝土和砂石对汞也具有较大吸附性，水泥砖和骨料对汞吸附能力较弱。水泥混凝土块吸附模拟表明污染主要存在于表层0～1.5 cm范围内，汞污染严重的工厂和车间等在拆迁、改建过程中，需要对其表层剥离，去除汞污染。
건축재료적역학성질、상변축능、생태배보、재생이용등수도엄범관주，단흔소유관우불동건축재료대홍적흡부연구。통과대수니전、포말혼응토、홍전、골료、사석등5충건축재료세분화수니혼응토립방체표준시괴치우항온실내진행기태홍흡부모의，탐색출최역수홍오염적건축재료화수니혼응토괴적수오염심도。통과XRD화XRF대5충건축재료분석득출기성분이SiO2위주，기차시CaCO3。5충건축재료진행홍흡부실험결과표명，정체상립경월소흡부량월대，단불동재료지간존재차이성，홍전시최용역수오염적건축재료，기차포말혼응토화사석대홍야구유교대흡부성，수니전화골료대홍흡부능력교약。수니혼응토괴흡부모의표명오염주요존재우표층0～1.5 cm범위내，홍오염엄중적공엄화차간등재탁천、개건과정중，수요대기표층박리，거제홍오염。
The mechanical properties ,phase change energy storage ,environmental protection ,and recycling of building materials are extensively studied ,but few studies focus on the mercury adsorption of different building materials .Five types of cement brick pow der including foam concrete ,red brick ,aggregate and gravel as well as several standard concrete blocks were exposed to gaseous mercury in constant temperature to determine most vulnerable building material to mercury contamination and the contamination depth of concrete blocks .Results showed that small particle contributed to large mercury adsorption , however different performance was found amongvarious materials . Red brick was the likely to have strong adsorption capacity followed by foam concrete and gravel . For concrete block ,the pollution mainly concentratedat the 0~1.5cm of the surface .As a result ,for some seriously mercury polluted factories and workshops ,mercury pollution can be removed by peeling the skin of the buildings before demolition , renovation process .