矿物掺合料对PVA-ECC性能的影响_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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矿物掺合料对PVA-ECC性能的影响

The Effect of Mineral Admixture on the Performance of PVA-ECC

2020年第9期

PVA-ECC；矿物掺合料；粉煤灰；硅灰；力学性能；裂缝；抗渗性能

PVA-ECC; Mineral admixture; Fly ash; Silica fume; Mechanical property; Crack; Impermeability

2020年第9期

10.19761/j.1000-4637.2020.09.043.04

国家自然基金青年科学基金项目（NSFC51308271）；昆明理工大学分析测试基金项目（2019M20182210048）。

周旭，李晓琴，丁捷，黄可

昆明理工大学建筑工程学院，云南昆明 650500

周旭，李晓琴，丁捷，黄可

周旭,李晓琴,丁捷,等.矿物掺合料对PVA-ECC性能的影响[J].混凝土与水泥制品,2020(9):43-46.

ZHOU X,LI X Q,DING J,et al.The Effect of Mineral Admixture on the Performance of PVA-ECC[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):43-46.

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1000

摘要：研究了单掺粉煤灰和复掺粉煤灰与硅灰代替部分水泥对PVA-ECC试件力学性能、裂缝宽度及抗渗性能的影响。结果表明，单掺粉煤灰会导致PVA-ECC试件强度下降，但可显著增加其韧性。复掺粉煤灰与硅灰时，PVA-ECC试件表现出优异的应变硬化特性以及多缝开裂现象，力学性能得到提升，基体均匀性增加，抗渗性能得到改善，最大提升了约33%。试验得到了具有良好性能的粉煤灰-硅灰-水泥三元体系PVA-ECC试件，其极限拉伸应变达到2.07%，抗压强度达到42.6 MPa，裂缝宽度较小且分布均匀，渗透系数仅为2.136×10-11 m/s，抗渗性能较优。 Abstract: The effects of single-doped fly ash and mixed fly ash and silica fume instead of part of cement on the mechanical properties, crack width and impermeability of PVA-ECC specimen were studied. The results show that the single-doped fly ash can reduce the strength of PVA-ECC specimen, but significantly increase its toughness. When mixed with fly ash and silica fume, PVA-ECC specimen shows excellent strain hardening characteristics and multi-slit cracking, the mechanical properties are improved, the matrix uniformity is increased, and the impermeability is improved with a maximum increase of about 33%. The good performance of fly ash-silica fume-cement ternary system PVA-ECC specimen is obtained, and its ultimate tensile strain is 2.07%, compressive strength is 42.6 MPa, crack width is small and uniformly distributed, permeability coefficient is only 2.136 × 10-11 m/s, and its impermeability is good.

英文名 : The Effect of Mineral Admixture on the Performance of PVA-ECC

刊期 : 2020年第9期

关键词 : PVA-ECC；矿物掺合料；粉煤灰；硅灰；力学性能；裂缝；抗渗性能

Key words : PVA-ECC; Mineral admixture; Fly ash; Silica fume; Mechanical property; Crack; Impermeability

刊期 : 2020年第9期

DOI : 10.19761/j.1000-4637.2020.09.043.04

文章编号 :

基金项目 : 国家自然基金青年科学基金项目（NSFC51308271）；昆明理工大学分析测试基金项目（2019M20182210048）。

作者 : 周旭，李晓琴，丁捷，黄可

单位 : 昆明理工大学建筑工程学院，云南昆明 650500

周旭，李晓琴，丁捷，黄可

周旭,李晓琴,丁捷,等.矿物掺合料对PVA-ECC性能的影响[J].混凝土与水泥制品,2020(9):43-46.

ZHOU X,LI X Q,DING J,et al.The Effect of Mineral Admixture on the Performance of PVA-ECC[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(9):43-46.

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摘要

参数

结论

参考文献

引用本文

Abstract: The effects of single-doped fly ash and mixed fly ash and silica fume instead of part of cement on the mechanical properties, crack width and impermeability of PVA-ECC specimen were studied. The results show that the single-doped fly ash can reduce the strength of PVA-ECC specimen, but significantly increase its toughness. When mixed with fly ash and silica fume, PVA-ECC specimen shows excellent strain hardening characteristics and multi-slit cracking, the mechanical properties are improved, the matrix uniformity is increased, and the impermeability is improved with a maximum increase of about 33%. The good performance of fly ash-silica fume-cement ternary system PVA-ECC specimen is obtained, and its ultimate tensile strain is 2.07%, compressive strength is 42.6 MPa, crack width is small and uniformly distributed, permeability coefficient is only 2.136 × 10^-11 m/s, and its impermeability is good.

关键词:

pva-ecc

the

and

粉煤灰

fly

ash

性能

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[1] ZHOU J,QIAN S,YE G,et al.Improved fiber distribution and mechanical properties of engineered cementitious composites by adjusting the mixing sequence[J].Cement and Concrete Composites,2012,34(3):342-348.
[2] WANG Y.Toughness characteristics of synthetic fibre-reinforced cementitious composites[J].Fatigue & fracture of engineering materials & structures,1998,21(4):521-532.
[3] 姜锦磊,孙敏,李风雷.海水腐蚀环境下PVA-钢混杂纤维混凝土弯曲韧性研究[J].混凝土与水泥制品,2018(12):53-56.
[4] 王登科,曾艺卓,张海东,等.不同种类纤维对海工混凝土力学性能的影响[J].混凝土与水泥制品,2018(7):55-57.
[5] 王海龙,罗月静,彭光宇,等.掺合料对纤维增强水泥基材料拉伸性能的影响[J].西南交通大学学报,2017,52(1):61-68.
[6] LI V C.Advances in ECC research[J].ACI Special Publications,2002,206:373-400.
[7] LI V C,WANG S,WU C.Tensile strain-hardening behavior of polyvinyl alcohol engineered cementitious composite(PVA-ECC) [J].ACI Materials Journal-American Concrete Institute,2001,98(6):483-492.
[8] GAO Y,CHENG L,GAO Z,et al.Effects of different mineral admixtures on carbonation resistance of lightweight aggregate concrete[J].Construction and Building Materials,2013,43:506-510.
[9] YAZC H.The effect of silica fume and high-volume Class C fly ash on mechanical properties, chloride penetration and freeze-thaw resistance of self-compacting concrete[J].Construction and Building Materials,2008,22(4):456-462.
[10] ZHANG P,LI Q F.Effect of polypropylene fiber on durability of concrete composite containing fly ash and silica fume[J].Composites Part B: Engineering,2013,45(1):1587-1594.
[11] YUN K K,CHOI S Y,YEON J H.Effects of admixtures on the rheological properties of high-performance wet-mix shotcrete mixtures[J].Construction and Building Materials,2015,78:194-202.
[12] 中华人民共和国建设部,国家质量监督检验检疫总局.普通混凝土力学性能试验方法标准:GB/T 50081—2002[S].北京:中国建筑工业出版社,2003.
[13] 中华人民共和国住房和城乡建设部.普通混凝土拌合物性能试验方法标准:GB/T 50080—2016[S].北京:中国建筑工业出版社,2017.
[14] 庞超明,LEUNG C K Y,孙伟.高掺量粉煤灰高延性水泥基复合材料的制备和性能[J].硅酸盐学报,2009(12):119-125.
[15] NOCHAIYA T,WONGKEO W,CHAIPANICH A.Utilization of fly ash with silica fume and properties of Portland cement-fly ash-silica fume concrete[J].Fuel,2010,89(3):768-774.
[16] ZHANG Z,ZHANG B,YAN P.Comparative study of effect of raw and densified silica fume in the paste, mortar and concrete[J].Construction and Building Materials,2016,105:82-93.

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