Comparative Test Study on Work Performance Evaluation Methods of Steel-Shell Submerged Tunnel Used Self-Compacting Concrete

Abstract

Abstract: There is no unified approach for evaluating the workability of self-compacting concrete. In this paper, comparison tests were carried out to self-compacting concrete with slump expansion of 500 mm to 850 mm by testing three workability indexes: filling ability, passing ability and anti-segregation ability. Evaluation method of concrete performance was then discussed. The results show that the comprehensive evaluation indexes of slump-flow (U_SF), slump time (T₅₀₀), L-type instrument passing rate (H₂/H₁) and visual stability index (A_VSI) provide good characterization to the workability of self-compacting concrete. U_SF and A_VSI provide good evaluation to filling ability to self-compacting concrete. L-type instrument or J-ring test provide good evaluation to passing ability of self-compacting concrete. The stability of on-site concrete preliminarily evaluates by visual stability test (VSI) first, and then by segregation rate sieve test (GTM sieve analysis method) when quantitative evaluation is needed. In addition to GTM sieve analysis method, pressure bleeding test should be added when necessary for the anti-segregation evaluation of concrete of vertical members such as side walls.

Key words: steel-shell submerged tunnel, self-compacting concrete, work performance index, evaluation method, filling ability, gap passing ability, anti-segregation ability

CLC Number:

TU525

YU Fang, SONG Shenyou, LI Hanbo, FAN Zhihong, LIN Weicai, LUO Wei. Comparative Test Study on Work Performance Evaluation Methods of Steel-Shell Submerged Tunnel Used Self-Compacting Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(4): 1228-1237.

References

[1] 安雪晖,黄绵松,大内雅博.自密实混凝土技术手册[M].北京:中国水利水电出版社,2008.
AN X H, HUANG M S, OUCHI Y. Technical manual for self-compacting concrete[M].Beijing: China Water Power Press, 2008 (in Chinese).
[2] 龙广成,谢友均.自密实混凝土[M].北京:科学出版社,2013.
LONG G C, XIE Y J. Self-compacting concrete[M]. Beijing: Science Press, 2013 (in Chinese).
[3] 王成启.自密实混凝土工作性测试方法及其评价标准研究进展[J].工业建筑,2013,43(s1):588-593+599.
WANG C Q. Progress in research on test methods of workability of self-compacting concrete and evaluation standards[J]. Industrial Construction, 2013, 43(s1): 588-593+599 (in Chinese).
[4] 张琨,黎鹏平,熊建波.自密实混凝土工作性评价方法研究及工程应用[C]//第五届全国钢结构工程技术交流会论文集.珠海,2014.
ZHANG K, LI P P, XIONG J B. Study on the workability evaluation method for self-compacting concrete and its application[C]//Proceedings of the 5th National Steel Structure Engineering Technology Exchange Conference. Zhuhai, 2014 (in Chinese).
[5] BARTOS P. Workability of flowing concrete. Assessment by a free orifice rheometer[J]. Concrete, 1978, 12: 28-30.
[6] OUCHI M, OZAWA K. Proceedings of the international wordshop on self-compacting concrete[J]. Tokyo: Japan Society of Civil Engineers, 1999.
[7] ASTM Standard. Standard test method for slump flow of self-consolidating concrete: C1611/C1611M[S]. West Conshohocken, 2014.
[8] The SCC European Project Group. The european guidelines for self-compacting concrete: specification, production and use[S]. UK, 2005.
[9] EFNARCC. Specification and guidelines for self-compacting concrete[S]. UK, 2002.
[10] 张勇,李化建,赵庆新,等.自密实混凝土稳定性评价方法研究进展[J].混凝土,2015(10):113-118.
ZHANG Y, LI H J, ZHAO Q X, et al. Research on the development of the test methods for the stability of self-compacting concrete[J]. Concrete, 2015(10): 113-118 (in Chinese).
[11] 黄锐新,陈嘉健.基于层次分析法的掺滑石粉自密实混凝土工作性能优化评价[J].工程建设,2020,52(7):7-11.
HUANG R X, CHEN J J. Evaluation on working performance optimization of self-compacting concrete mixed with talcum powder based on AHP[J]. Engineering Construction, 2020, 52(7): 7-11 (in Chinese).
[12] 姚楚康,汪永剑.自密实混凝土工作性能试验方法综述[J].广东水利水电,2020(5):19-27.
YAO C K, WANG Y J. Test methods for workability of self-compacting concrete-a review[J]. Guangdong Water Resources and Hydropower, 2020(5): 19-27 (in Chinese).
[13] 吕淼.自密实混凝土工作性能优化测试方法研究[D].北京:北方工业大学,2019.
LYU M. Research on optimizing testing method for working performance of self-compacting concrete[D]. Beijing: North China University of Technology, 2019 (in Chinese).
[14] 黄智山,胡琼,杜卓铮.自密实混凝土工作性评价方法与两个主要的技术指标[J].混凝土,2010(9):6-13.
HUANG Z S, HU Q, DU Z Z. Evaluation methods for workability of self-compaction concrete and two key parameters[J]. Concrete, 2010(9): 6-13 (in Chinese).
[15] 王国杰,郑建岚,李轶慧.新拌自密实混凝土工作性测试方法的评价与探讨[J].福州大学学报(自然科学版),2005,33(s1):177-181.
WANG G J, ZHENG J L, LI Y H. Study on the test methods for workability of fresh SCC[J]. Journal of Fuzhou University (Natural Sciences Edtion), 2005, 33(s1): 177-181 (in Chinese).
[16] ZERBINO R, BARRAGÁN B, GARCIA T, et al. Workability tests and rheological parameters in self-compacting concrete[J]. Materials and Structures, 2009, 42(7): 947-960.
[17] SEDRAN T, DE LARRARD F. Optimization of self-compacting concrete thanks to packing model[A]. Proceedings of 1st International RILEM Symposium on Self-Compacting concrete. Paris: RILEM Publication SARL, 1999.
[18] 中南大学,福州大学.自密实混凝土设计与施工指南:CCES 02—2004[S].北京:中国建筑工业出版社,2005.
Central South University, Fuzhou University. Guide to design and construction of self-compacting concrete: CCES 02—2004[S]. Beijing: China Construction Industry Press, 2005 (in Chinese).
[19] ASTM Standard. Standard test method for static segregation of self-consolidating concrete using column technique: C1610/C1610M[S]. West Conshohocken, 2019.
[20] ASTM Standard. Standard test method for rapid assessment of static segregation resistance of self-consolidating concrete using penetration test: C1712[S]. West Conshohocken, 2014.
[21] ASTM Standard. Standard test method for slump flow of self-consolidating concrete: C1611-14[S]. West Conshohocken, 2014.