粉煤灰混凝土吸音隔声砌块的研制  

Development of sound insulation and acoustical absorption fly ash concrete block

作　　者：牛季收[1] 马先伟[1] 王东立 

机构地区：[1]平顶山工学院土木工程系,河南平顶山467001 [2]平顶山福星现代建材有限公司,河南平顶山467000

出　　处：《新型建筑材料》2008年第5期21-24,共4页New Building Materials

基　　金：河南省科技攻关项目(072102350035)

摘　　要：由于城市噪声变得日益严重,对人们的生活、工作、学习造成了很大的危害。从砌体材料出发,研制出一种新型砌块以消除噪声的危害,并从结构上解释2种类型(Ⅰ型和Ⅱ型)砌块的吸音原理。Ⅰ型和Ⅱ型砌块的吸声系数均远大于0.2,尤其是Ⅱ型砌块的吸声系数达到0.7以上,在125～315Hz和800Hz以上效果显著。Ⅰ型砌块在中高频范围隔声效果较好。The urban noise become stronger and stronger, and heavily impaired people＇s daily life, work and study. A kind of new wall material is developed in order to elimination the noise. And the acoustical mechanism of two types （ Ⅰ and Ⅱ） of blocks is explained from structure. The sound absorption coefficient of both block types is far more than 0.2,especially the block type Ⅱ which sound absorption coefficient is more than 0.7. The sound absorption effect of the block type Ⅱ is very obvious from 125 Hz to 315 Hz and over 800 Hz. In addition,the block type Ⅰ has good sound insulation effect within medium high frequency range.

关 键 词：粉煤灰混凝土砌块:吸音 隔声 

分 类 号：TU522.34[建筑科学—建筑技术科学]