CAJ | 학술논문

综述了木质素在混凝土外加剂中的应用。工业木质素，尤其是木质素磺酸盐，可以充当混凝土减水剂、缓凝剂、引气剂和泵送剂。由于未经改性的工业木质素性能不够理想，为了提高木质素基混凝土添加剂的性能，宜对其进行适当的改性。碱木质素经过氧化、磺化、磺甲基化、接枝共聚等改性后，可以得到具有良好性能的混凝土外加剂。
종술료목질소재혼응토외가제중적응용。공업목질소，우기시목질소광산염，가이충당혼응토감수제、완응제、인기제화빙송제。유우미경개성적공업목질소성능불구이상，위료제고목질소기혼응토첨가제적성능，의대기진행괄당적개성。감목질소경과양화、광화、광갑기화、접지공취등개성후，가이득도구유량호성능적혼응토외가제。
The applications of lignin derivatives in concrete admixtures are reviewed. Technical lignins, especially lignosulfonates, can serve as concrete water reducers, retarders, air entraining agents and pumping agents. The performance of lignin is not good. Some appropriate modifications are sometimes required in order to improve the performance of the lignin-based concrete admixtures. Lignin-based concrete admixtures with good performaces can be obtained fxom alkali lignin after modifications such as oxidation, sulfonation, sulfomethylation and graft copolymerization.