摘要
透水砖因其具有透水性、保湿性,防滑、高强度、抗寒、耐风化、降噪、吸音等特点.然而在实际应用中,透水砖易发生泛碱现象,究其原因,主要是可溶盐通过结构内部多孔介质,迁移至其表面经化学反应,积聚结晶析出的结果,该迁移过程与环境温度及湿度密切相关,该泛碱的主要成分为碳酸钙(CaCO3).研究表明,在生产过程中,为有效预防透水砖的泛碱现象,一般采用物理方法、化学方法、微生物方法及养护方法.
Abstract
Permeable bricks have the characteristics of permeability,moisture retention,anti slip,high strength,cold resistance,weathering resistance,noise reduction,and sound absorption.However,in practical applications,permeable bricks were prone to the phenomenon of pan alkali.The main reason for this is that soluble salts migrate to their surface through porous media within the structure,undergo chemical reactions,accumulate and crystallize,and the migration process is closely related to environmental temperature and humidity.The main component of this pan alkali is calcium carbonate(CaCO3).Research has shown that in the production process,physical methods,chemical methods,microbiological methods,and maintenance methods are generally used to effectively prevent the phenomenon of alkali formation in permeable bricks.
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