粉煤灰对超轻发泡混凝土孔结构及吸声性能的影响  

Fly Ash on Pore Structure and Sound Absorption Performance of Ultralight Foamed Concrete

作　　者：吴丽曼 孙勇[1] 张晓莉[1] 彭明军[1] 殷国祥[1] 郭怀才 

机构地区：[1]昆明理工大学材料科学与工程学院,昆明650093 [2]昆明理工大学机电工程学院材料保护研究所,昆明650093

出　　处：《硅酸盐通报》2014年第9期2387-2392,共6页Bulletin of the Chinese Ceramic Society

摘　　要：以化学发泡法制备泡沫混凝土试样,并结合图像分析软件(Image-Proplus 6.0)测得了不同粉煤灰掺量时试样孔隙率、平均孔径和孔径分布等孔结构参数,并研究了粉煤灰掺量对试样28 d抗压强度和吸声性能的影响。结果表明:随着粉煤灰掺量的增大,试样孔隙率和平均孔径逐渐减小,28 d抗压强度先增加后降低,试样的吸声性能有一定程度的提高。Foamed concrete was prepared based on chemical foaming,image analysis software（ ImageProplus 6. 0） was used to calculate the pore structure of samples such as porosity,average pore size and pore size distribution,it researched the effect of fly ash content on 28 d compressive strength and absorption properties of samples. The results show that： with the increasing of fly ash content,porosity and average pore size of sample decreases,28 compressive strength first increased and then reduced,frequency sound absorption capability of sample is enhanced.

关 键 词：泡沫混凝土 粉煤灰 孔结构 吸声性能 

分 类 号：TU528[建筑科学—建筑技术科学]