摘要
为减少建筑材料的成本消耗,提出利用矿渣粉制备建筑用的碱激发胶凝材料。工艺优化结果表明,选择模数为1.55的水玻璃溶液为碱激发剂,掺入38%的煤矸石,得到的胶凝材料性能最佳。同时经过200℃煅烧后,胶凝材料抗压强度上升至20MPa;经过0.4mol/L的硫酸、氢氧化钠浸泡后,材料的强度下降,说明该胶凝材料在耐酸碱性方面还需进一步提升。
In order to reduce the cost consumption of building materials,an alkali-activated cementitious material for construction is prepared with slag powder.The results of process optimization show that the performance of cementitious material is the best when the sodium silicate solution with a modulus of 1.55 is selected as alkali activator and 38%coal gangue is added.Meanwhile,after a calcination at 200℃,the compressive strength of cementitious material increases to 20MPa;after soaking in 0.4mol/L sulfuric acid and sodium hydroxide,the strength of the material decreases,which indicates that the cementitious material still needs further improvement in the acid and alkali resistance.
作者
刘丹晨
LIU Danchen(Yunnan Construction Investment Second Installation Engineering Co.,Ltd.,Kunming 650000,China)
出处
《化学与粘合》
CAS
2022年第6期506-509,538,共5页
Chemistry and Adhesion
关键词
碱激发剂
胶凝材料
建筑材料
抗压性能
alkali activator
cementitious materials
building material
compressive properties