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| 优化无机复合烧结页岩空心砖性能的分析 |
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毛伟1, 周书兵2, 谢厚礼3, 宋斌华2, 张华廷4, 龙恩深1
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1.四川大学建筑与环境学院,四川成都610065;2.中机中联工程有限公司建筑技术研究所,重庆400039;3.重庆市建设技术发展中心,重庆400015;4.中机中联工程有限公司综合技术研究所,重庆400039
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| 摘要: |
| 综合应用有限容积法和有限元法，计算了无机复合烧结页岩空心砖（复合砖）的三维传热和力学性能，分析了孔内辐射、孔排数、保温浆料及页岩导热系数的变化对复合砖当量导热系数的影响.结果表明：计算时不能忽略孔内辐射对复合砖当量导热系数的影响；复合砖当量导热系数与保温浆料导热系数近似呈线性关系；在现有工艺条件下，增加孔排数的主要意义在于强化复合砖的力学性能，而对其热工性能的改善效果很小.通过优化工艺条件（加大复合砖尺寸（即砌块化）和增加孔数、孔排数）所制得的Ⅶ型砖的当量导热系数（考虑计算误差）约为0200W/（m·K），砌体的传热系数约为0718W/（m2·K），强度等级为MU35，具有良好的热工性能和力学性能.Ⅶ型砖的当量导热系数与页岩导热系数近似呈线性关系，这为进一步优化Ⅶ型砖的热工性能提供了定量化思路. |
| 关键词: 无机复合烧结页岩空心砖 热工性能 力学性能 数值方法 优化 |
| DOI：103969/j.issn1007 9629201505034 |
| 分类号: |
| 基金项目:重庆市科技攻关（应用技术研发类）项目（cstc2012gg yyjs50001） |
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| Analysis on the Performance Improvement of Inorganic Composite Sintered Shale Hollow Brick |
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MAO Wei1, ZHOU Shubing2, XIE Houli3, SONG Binhua2, ZHANG Huating4, LONG Enshen1
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1.College of Architecture & Environment, Sichuan University, Chengdu 610065, China;2.The Architectural Technology Department, CMCU Engineering Co., Ltd., Chongqing 400039, China;3.Chongqing Construction Technology Development Center, Chongqing 400015, China;4.The Integrated Technology Department, CMCU Engineering Co., Ltd., Chongqing 400039, China
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| Abstract: |
| Based on the finite volume method(FVM) and finite element method(FEM), the three dimensional heat transfer and mechanical properties of the inorganic composite sintered shale hollow brick were calculated. And the influence of hole radiation, number of hole rows, thermal conductivities of insulation mortar and shale on the equivalent thermal conductivity of inorganic composite sintered shale hollow brick were investigated. Result shows: the effect of hole radiation on the equivalent thermal conductivity shouldnt been ignored; |
| Key words: inorganic composite sintered shale hollow brick thermal property mechanical property numerical method optimization |
