粉煤灰综合利用 2015N.3 FLY ASH COMPREHENSIVE UTILIZATION 建筑科技 混凝土面板堆石坝面板混凝土配合比优化设计 Mixing Proportion Optimize of Concrete Slabs of Concrete Faced Rockfill Dam 宫经伟,李双喜,葛毅雄,何建新,凤家骥 (新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052) 摘要:以具体工程面板混凝土为例,在前期配合比研究基础上,确定粉煤灰掺量、增密剂掺量为两个试验因素,采 用在正交试验方案,以抗压强度、轴向抗拉强度、极限拉伸值、抗拉弹性模量、单位面积上的总开裂面积为考核指标,对面 板混凝土配合比展开优化设计试验研究,使面板混凝土不仅具有较好的施工性能,还具有较强的抗裂性能及抗冻、抗渗 等耐久性能。优化后的混凝土配合比在现场施工后,面板混凝土裂缝明显减少。该优化设计研究方法为其它工程面板 混凝土抗裂设计提供参考依据。 关键词:混凝土面板;配合比优化;正交试验;抗裂性能;耐久性能 中图分类号:TV61:TU528 文献标识码:A 文章编号:1005-8249(2015)03-0036-06 Gong Jingwei ,Li Shuangxi ,Ge Yixiong ,He Jianxin ,Feng Jiaji ( Collegeof Hydraulie and Civil Engineering ,Xinjiang Agricultural University ,Urumqi 830052 ,China ) Abstract :In this paper ,On the base of summarizing the previous research results for the specific engineering concrete slabs ,the contents fly ash and resistance agent were determined as two experimental factors ,with pressive strength ,axial tensile strength ,ultimate tensile elongation tensile modulus of elasticity and total cruck area per unit area as assessment indicators ,orthogonal test was carried out for the mixing proportion optimizing of concrete slabs ,make the slabs concrete not only has good ...
混凝土面板堆石坝面板混凝土配合比优化设计.pdf
