一种环保延性水泥基复合材料的制备及其韧性

doi:10.11901/1005.3093.2018.166

材料研究学报

2018, Vol. 32

Issue (12): 905-912 DOI: 10.11901/1005.3093.2018.166

研究论文

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一种环保延性水泥基复合材料的制备及其韧性

鲍文博(

), 李维, 底高浩, 黄志强, 余芳

沈阳工业大学建筑与土木工程学院沈阳 110870

Preparation and Ductility Characterization of an Environmental Friendly Toughening Cementitious Composite

Wenbo BAO(

), Wei LI, Gaohao DI, Zhiqiang HUANG, Fang YU

(School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China)

引用本文:

鲍文博, 李维, 底高浩, 黄志强, 余芳. 一种环保延性水泥基复合材料的制备及其韧性[J]. 材料研究学报, 2018, 32(12): 905-912.
Wenbo BAO, Wei LI, Gaohao DI, Zhiqiang HUANG, Fang YU. Preparation and Ductility Characterization of an Environmental Friendly Toughening Cementitious Composite[J]. Chinese Journal of Materials Research, 2018, 32(12): 905-912.

全文: PDF(5214 KB) HTML

摘要:

使用尾矿砂替代ECC中的细骨料,借鉴ECC技术制备了尾矿砂替代天然砂的比率达50%的纤维增强尾矿砂水泥基复合材料(FRTCC),采用立方体抗压、直接拉伸、薄板弯曲和双面剪切等不同加载模式的实验系统研究了FRTCC的压缩、拉伸、弯曲和剪切韧性以及PVA纤维的增韧机制,以及PVA纤维掺量和水胶比对FRTCC延性的影响。提出了完全韧性比的概念和定义,并采用韧性比和韧性指数双特征参数表征了FRTCC的韧性。结果表明,这种材料具有环保和延性双重特征。PVA掺量与水胶比存在着交互作用,对FRTCC的韧性有显著的影响。PVA掺量与水胶的适当配比明显提高了FRTCC的延性和能量吸收能力,使FRTCC具有多裂缝开裂、应变硬化和延性破坏等特征。

关键词 ：无机非金属材料, 延性水泥基复合材料, 韧性表征, 尾矿砂, PVA纤维, 环保

Abstract：

A fiber reinforced tailing cementitious composite (FRTCC) was prepared via engineered cementitious composite (ECC) technology. By replacing 50% natural send with tailing sand, the prepared composite presents distinct ductility and environmental friendly-features. The tensile, compressive, flexural and shear ductility of FRTCC as well as the toughening mechanism of polyvinyl alcohol (PVA) fiber were systematically investigated by means of cube compression-, direct tensile-, thin plate bending- and double shear-test. The influence of the content of PVA fiber and the ratio of water to binder on the ductility of FRTCC was examined. The definition of complete toughness ratio was proposed, and the toughness of FRTCC was characterized with a set of double characteristic parameters i.e. the toughness ratio and the toughness index. The results show that the content of PVA fiber and the ratio of water to binder exhibit remarkable synergistic effect on the ductility of FRTCC. The proper mix proportion can significantly improve the ductility and energy absorption capacity of FRTCC, thereby ensure that the FRTCC possesses characteristics such as cracking with multi-cracks, strain hardening and ductile fracture etc.

Key words： inorganic non-metallic materials toughening cementitious composite characterization of toughness tailing sand PVA fiber environmental friendliness

收稿日期: 2018-02-12

基金资助:国家自然科学基金(51608331),辽宁省教育厅科学基金(LGD2016007)

作者简介:

作者简介鲍文博,男,1958年生,博士

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https://www.cjmr.org/CN/10.11901/1005.3093.2018.166 或 https://www.cjmr.org/CN/Y2018/V32/I12/905

表1 FRTCC配合比

图1 立方体抗压实验结果

图2 直接拉伸应力应变实验曲线

图3 直接拉伸实验结果

图4 弯曲力-位移实验曲线

图5 弯曲实验结果

图6 剪切实验结果

[1]	Van Tittelboom K, De Belie N, Lehmann F, et al.Acoustic emission analysis for the quantification of autonomous crack healing in concrete[J]. Constr. Build. Mater., 2012, 28: 333
[2]	Van Tittelboom K, De Belie N.Self-healing in cementitious materials-a review[J]. Materials, 2013, 6: 2182
[3]	Cao M L, Xu L, Zhang C.Review on micromechanical design, performance and development tendency of engineered cementitious composite[J]. J. Chin. Ceramic Soc., 2015, 43: 632(曹明莉, 许玲, 张聪. 高延性纤维增强水泥基复合材料的微观力学设计、性能及发展趋势[J]. 硅酸盐学报, 2015, 43: 632)
[4]	Wille K, Naaman A E, El-Tawil S.Optimizing ultra-high-performance fiber-reinforced concrete[J]. Concr. Int., 2011, 33(9): 35
[5]	Li V C.Tailoring ECC for special attributes: a review[J]. Int. J. Concr. Struct. Mater., 2012, 6(3): 135
[6]	Herbert E N, Li V C.Self-healing of engineered cementitious composites in the natural environment [A]. Parra-Montesinos G J, Reinhardt H W, Naaman A E eds. High Performance Fiber Reinforced Cement Composites[M]. Dordrecht: Springer, 2012: 155
[7]	Kan L L, Shi H S.Investigation of self-healing behavior of engineered cementitious composites (ECC) materials[J]. Constr. Build. Mater., 2012, 29: 348
[8]	Chen B C, Ji T, Huang Q W, et al.Review of research on ultra-high performance concrete[J]. J. Archit. Civil Eng., 2014, 31(3): 1(陈宝春, 季韬, 黄卿维等. 超高性能混凝土研究综述[J]. 建筑科学与工程学报, 2014, 31(3): 1)
[9]	Huang X Y, Ranade R, Ni W, et al.Development of green engineered cementitious composites using iron ore tailings as aggregates[J]. Constr. Build. Mater., 2013, 44: 757
[10]	Bao W B, Di G H, Chen S L, et al.Toughening properties of high performance tailings cementitious composites with environmental protection[J]. J. Funct. Mater., 2016, 47(11): 7(鲍文博, 底高浩, 陈四利等. 高性能环保型尾矿砂水泥基复合材料增韧性能研究[J]. 功能材料, 2016, 47(11): 7)
[11]	Bao W B, Li L F, Di G H, et al.Mechanical properties of green toughness cementitious composite[J]. J. Shenyang Univ. Technol., 2016, 38: 697(鲍文博, 李林凤, 底高浩等. 绿色韧性水泥基复合材料力学性能[J]. 沈阳工业大学学报, 2016, 38: 697)
[12]	Ding Y N, Liu S G.Study of the flexural and shear toughness of steel fiber reinforced self-compacting concrete[J]. China Civil Eng. J., 2010, 43(11): 55(丁一宁, 刘思国. 钢纤维自密实混凝土弯曲韧性和剪切韧性试验研究[J]. 土木工程学报, 2010, 43(11): 55)
[13]	Li H D, Xu S L.Research on flexural properties and flexural toughness evaluation method of ultra high toughness cementitious composites[J]. China Civil Eng. J., 2010, 43(3): 32(李贺东, 徐世烺. 超高韧性水泥基复合材料弯曲性能及韧性评价方法[J]. 土木工程学报, 2010, 43(3): 32)
[14]	China Association for Engineering Construction Standardization. CECS 13-2009 Standard test methods for fiber reinforced concrete [S]. Beijing: China Planning Press, 2010(中国工程建设标准化协会. CECS 13- 2009 纤维混凝土试验方法标准 [S]. 北京: 中国计划出版社, 2010)
[15]	Deng Z C.High Performance Synthetic Fiber Reinforced Concrete [M]. Beijing: Science Press, 2003(邓宗才. 高性能合成纤维混凝土 [M]. 北京: 科学出版社, 2003)

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