矿物掺合料对自密实混凝土流变性能的影响

doi:10.13229/j.cnki.jdxbgxb201602016

吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (2): 439-444.doi: 10.13229/j.cnki.jdxbgxb201602016

矿物掺合料对自密实混凝土流变性能的影响

高小建^{1, 2}, 孙博超², 叶焕², 王子龙²

1.哈尔滨工业大学结构工程灾变与控制教育部重点实验室,哈尔滨 150090;
2.哈尔滨工业大学土木工程学院,哈尔滨 150090

收稿日期:2014-06-23 出版日期:2016-02-20 发布日期:2016-02-20
作者简介:高小建(1976-), 男, 教授,博士.研究方向:混凝土材料早期性能.E-mail:xjgao2002@aliyun.com
基金资助:
教育部新世纪优秀人才支持计划项目(NCET-12-0157); 国家自然科学基金项目(51578192)

Influence of mineral admixtures on the rheological behavior of self-compacting concrete

GAO Xiao-jian^{1, 2}, SUN Bo-chao², YE Huan², WANG Zi-long²

1.Key Lab of Structures Dynamic Behavior and Control,Ministry of Education, Harbin Institute of Technology,Harbin 150090, China;
2.School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China

Received:2014-06-23 Online:2016-02-20 Published:2016-02-20

摘要/Abstract

摘要： 采用新型混凝土流变仪,研究了不同矿物掺合料对新拌自密实混凝土(SCC)拌合物流变性能的影响规律.研究结果表明:随着粉煤灰的掺入,SCC拌合物的屈服剪切应力与塑性黏度逐渐降低;矿渣可使SCC拌合物的屈服剪切应力先降低再增加,触变性能显著增强;石灰石粉的掺入使SCC拌合物的屈服剪切应力及触变性均有所增大.随着静置时间延长,SCC拌合物的触变性逐渐变弱,屈服剪切应力增大,塑性黏度减小.

关键词: 建筑材料, 自密实混凝土, 流变性能, 粉煤灰, 矿渣, 石灰石粉

Abstract: In this paper, the influence of mineral admixtures on the rheological properties of fresh Self-Compacting Concrete (SCC) mixture was studied using a new type of concrete rheometer. The results show that both yield shear stress and plastic viscosity of the SCC mixture decrease as the content of fly ash in the mixture increases. As the content of Ground Granulated Blast Furnace Slag (GGBFS) increases, the thixotropy behavior of the SCC mixture becomes more obvious, and the yield stress decreases first and then increases. Both the yield stress and the thixotropy behavior of SCC mixture increase with the addition of limestone powder. For all the SCC mixtures with different mineral admixtures, as the storage time increases, the thixotropy behavior of fresh concrete is gradually weakened, the yield stress increases and the plastic viscosity decreases.

Key words: building materials, self-compacting concrete(SCC), rheological behavior, fly ash, ground granulated blast furnace slag(GGBFS), limestone powder

中图分类号:

TU528.53

高小建, 孙博超, 叶焕, 王子龙. 矿物掺合料对自密实混凝土流变性能的影响[J]. 吉林大学学报(工学版), 2016, 46(2): 439-444.

GAO Xiao-jian, SUN Bo-chao, YE Huan, WANG Zi-long. Influence of mineral admixtures on the rheological behavior of self-compacting concrete[J]. 吉林大学学报(工学版), 2016, 46(2): 439-444.

参考文献

[1] Domone P L. A review of the hardened mechanical properties of self-compacting concrete[J]. Cement & Concrete Composites, 2007,29(1): 1-12.
[2] 刘运华,谢友均, 龙广成. 自密实混凝土研究进展[J]. 硅酸盐学报, 2007,35(5): 671-678.
Liu Yun-hua,Xie You-jun, Long Guang-cheng. Progress of research on self-compacting concrete[J]. Journal of the Chinese Ceramic Society, 2007,35(5): 671-678.
[3] Yu Zhi-wu, Shi Cai-jun, Khayat K H, et al. Performance and use of self-consolidating concrete[C]//Proceedings of 1st International Symposium on Design. Paris: RILEM Pub-location SARL, 2005: 137-144.
[4] Víctor Fernàndez-Altable, Ignasi Casanova. Influence of mixing sequence and superplasticiser dosage on the rheological response of cement pastes at different temperatures[J]. Cement and Concrete Research,2006,36(7): 1222-1230.
[5] Nehdi M, Mindess S, Atcin P C. Rheology of high performance concrete: effects ultrafine particles[J]. Cement and Concrete Research, 1998, 8(5): 687-697.
[6] Park C K, Noh M H, Park T H. Rheological properties of cementitious materials containing mineral admixtures[J]. Cement and Concrete Research, 2005, 35(5): 842-849.
[7] Hu Chong, de Larrard F. The rheology of fresh high performance concrete[J]. Cement and Concrete Research, 1996, 26(2): 283-294.
[8] Masahiro Ouchi.Self-compactablity of fresh concrete[C]//Proceedings of 1st International Symposium on Design.Paris:RILEM Publication SARL,2005:65-73.
[9] Leemann Andreas, Hoffmann Cathleen, Winnefeld Frank. Pressure of self-consolidating concrete on formwork[J].Concrete International, 2006,28(2): 27-31.
[10] Billberg Peter, Silfwerbrand Johan, Osterberg Thomas. Form pressures generated by self-consolidating concrete[J].Concrete International, 2005,27(10): 35-42.
[11] Feys D, Verhoeven R, Schutter G D. Fresh self compacting concrete, a shear thickening material[J]. Cement and Concrete Research, 2008,38(7): 920-929.
[12] 李政, 张德思.粉煤灰对自密实混凝土流变性能的影响[J].粉煤灰综合利用, 2005(5): 3-5.
Li Zheng,Zhang De-si.Influence of fly ash on the rheological behavior of self-closely-concrete[J]. Fly Ash Comprehensive Utilization, 2005(5): 3-5.
[13] 刘伟强.自密实混凝土流变性能与强度试验研究[D].北京:北京交通大学土木建筑工程学院, 2010.
Liu Wei-qiang. Study on rheological properties and strength test of self-compacting concrete[D].Beijing: School of Civil Engineering, Beijing Jiaotong University,2010.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

矿物掺合料对自密实混凝土流变性能的影响

Influence of mineral admixtures on the rheological behavior of self-compacting concrete

RICH HTML

PDF (PC)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 6

Metrics

本文评价

推荐阅读 0

[1]	肖锐, 邓宗才, 兰明章, 申臣良. 不掺硅粉的活性粉末混凝土配合比试验[J]. 吉林大学学报(工学版), 2013, 43(03): 671-676.
[2]	孟松鹤, 高慧婷, 孙莉安, 史洪军. 硅灰-矿渣对聚丙烯纤维混凝土性能的影响[J]. 吉林大学学报(工学版), 2010, 40(增刊): 214-0217.
[3]	刘寒冰,何岩,魏海斌,刘昊. 聚丙烯纤维改良粉煤灰土的动力特性[J]. 吉林大学学报(工学版), 2010, 40(03): 672-0675.
[4]	刘寒冰, 何岩, 魏海斌, 葛琪. 聚丙烯纤维改良粉煤灰土[J]. 吉林大学学报(工学版), 2010, 40(02): 431-0434.
[5]	刘秀奇,，邢贺钦3，张国,，王立艳4，金晶， . 废弃矿渣粉填充EPDM泡沫型复合材料的制备及其吸油特性[J]. 吉林大学学报(工学版), 2009, 39(01): 56-60.
[6]	魏海斌，刘寒冰，高一平，李长雨，方瑛 . 冻融循环对粉煤灰土动强度的影响[J]. 吉林大学学报(工学版), 2007, 37(02): 329-0333.