不同砂浆强度下蒸压粉煤灰砖砌体力学性能研究  

Study on physical properties of autoclaved fly ash brick masonry under different mortar strength

作　　者：韦展艺 姜曙光[1] 高德梅 

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832000 [2]石河子开发区天业建材科技有限公司,新疆石河子832000

出　　处：《新型建筑材料》2013年第12期26-30,共5页New Building Materials

基　　金：国家科技支撑计划课题(2013BAJ03B02);西北严寒地区绿洲型村镇建设综合技术集成示范项目(2013BAJ12B05)

摘　　要：为了研究蒸压粉煤灰砖砌体的力学性能,并得出经济合理的砌筑砂浆强度等级,以原料配合比m(粉煤灰)∶m(河砂)∶m(电石渣)=41∶33∶26研制出的蒸压粉煤灰砖,在该砖各种物理力学性能均符合标准要求的前提下,通过对不同砂浆强度下该蒸压粉煤灰砖砌体抗压、抗剪、轴心抗拉以及弯曲抗拉强度试验,研究其力学性能。结果表明,该蒸压粉煤灰砖砌体符合GB 50003—2011标准要求,且各项力学性能实测值远优于GB 50003—2011的规定值;砌筑砂浆的强度会直接影响砌体的力学性能,当砌筑砂浆强度等级为M10时,砌体的各项力学性能得到了较好改善,因此,在实际工程中使用M10的砌筑砂浆比较经济合理。In order to study the mechanical properties of an autoclaved fly ash brick masonry and draw reasonable and eco- nomic mortar strength grade, the autoclaved fly ash brick is developed with raw materials mixture ratio of fly ash,river sand,car- bide slag of 41：33：26. Compression,shear, axial tension and bending tensile strength tests of the autoclaved fly ash brick masonry under different mortar strengths were carried out to research the mechanical properties under the premise that all the physical and mechanical properties of the brick meet the requirements of the standard promise. The results show that the autoclaved fly ash brick masonry conforms to the requirements of the standard GB 50003-2011,and the measured value is much superior than stan- dard specified value. And the trength of the mortar will directly affect the mechanical properties of the masonry. When the mortar strength class is M10,the mechanical properties of the masonry are greatly improved. Therefore it is more reasonable and economi- ca/ to use MIO mortar in the actual project.

关 键 词：蒸压粉煤灰砖 砌体 砂浆 力学性能 

分 类 号：TU522.19[建筑科学—建筑技术科学]