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Processing sequence in the production of engineered cementitious composites

Jian Zhou, Shunzhi Qian, Guang Ye UGent, Klaas van Breugel and Victor C Li (2009) 4th International conference on Construction Materials : performance, innovations and structural implications. p.333-338
abstract
Engineerd Cementitious Composites (ECC) is a class of ultra ductile fiber reinforced cementitious composites, characterized by a high ductility and a tight crack width control. In the production of ECC, beside mix design, processing is another crucial factor for both fresh and hardened properties of ECC. The processing influences the fresh properties of ECC, and the fresh properties of ECC mortar have a significant effect on the hardened properties. Therefore, in order to obtain good hardened properties, fresh properties have to be properly controlled, for example, by means of water or chemical admixture adjustments. This paper explores a complementary approach, focusing on ECC processing sequence aimed at producing ECC of both good fresh and hardened properties. For the new processing sequence, a part of liquid materials, normally water and superplasticizer, are first mixed with matrix materials and fibers are then added. After fibers disperse in mortar homogenously, the rest of the liquid materials are added to modify the workability of fresh ECC and the material properties of hardened ECC. In this paper, the influence of different mixing sequences of water was investigated by comparing the experimental results of uniaxial tensile tests. The new mixing sequence was found to increase the tensile strain capacity and the ultimate tensile strength of ECC. This increase is more prominent in the mixtures with a higher water/powder ratio.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Processing sequence, Engineered Cementitious composites, Tensile strain capacity, Tensile strength
in
4th International conference on Construction Materials : performance, innovations and structural implications
editor
C Oesterlee, E Denarié and E Brühwiller
article number
S3-1-4
pages
333 - 338
publisher
Japan Concrete Institute (JCI)
place of publication
Nagoya, Japan
conference name
4th International conference on Construction Materials : Performance, innovations and structural implications (ConMat '09)
conference location
Nagoya, Japan
conference start
2009-08-24
conference end
2009-08-26
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1000217
handle
http://hdl.handle.net/1854/LU-1000217
date created
2010-07-01 12:39:40
date last changed
2017-01-02 09:52:38
@inproceedings{1000217,
  abstract     = {Engineerd Cementitious Composites (ECC) is a class of ultra ductile fiber reinforced cementitious composites, characterized by a high ductility and a tight crack width control. In the production of ECC, beside mix design, processing is another crucial factor for both fresh and hardened properties of ECC. The processing influences the fresh properties of ECC, and the fresh properties of ECC mortar have a significant effect on the hardened properties. Therefore, in order to obtain good hardened properties, fresh properties have to be properly controlled, for example, by means of water or chemical admixture adjustments. This paper explores a complementary approach, focusing on ECC processing sequence aimed at producing ECC of both good fresh and hardened properties. For the new processing sequence, a part of liquid materials, normally water and superplasticizer, are first mixed with matrix materials and fibers are then added. After fibers disperse in mortar homogenously, the rest of the liquid materials are added to modify the workability of fresh ECC and the material properties of hardened ECC. In this paper, the influence of different mixing sequences of water was investigated by comparing the experimental results of uniaxial tensile tests. The new mixing sequence was found to increase the tensile strain capacity and the ultimate tensile strength of ECC. This increase is more prominent in the mixtures with a higher water/powder ratio.},
  articleno    = {S3-1-4},
  author       = {Zhou, Jian and Qian, Shunzhi and Ye, Guang and van Breugel, Klaas and Li, Victor C},
  booktitle    = {4th International conference on Construction Materials : performance, innovations and structural implications},
  editor       = {Oesterlee, C and Denari{\'e}, E and Br{\"u}hwiller, E},
  keyword      = {Processing sequence,Engineered Cementitious composites,Tensile strain capacity,Tensile strength},
  language     = {eng},
  location     = {Nagoya, Japan},
  pages        = {S3-1-4:333--S3-1-4:338},
  publisher    = {Japan Concrete Institute (JCI)},
  title        = {Processing sequence in the production of engineered cementitious composites},
  year         = {2009},
}

Chicago
Zhou, Jian, Shunzhi Qian, Guang Ye, Klaas van Breugel, and Victor C Li. 2009. “Processing Sequence in the Production of Engineered Cementitious Composites.” In 4th International Conference on Construction Materials : Performance, Innovations and Structural Implications, ed. C Oesterlee, E Denarié, and E Brühwiller, 333–338. Nagoya, Japan: Japan Concrete Institute (JCI).
APA
Zhou, J., Qian, S., Ye, G., van Breugel, K., & Li, V. C. (2009). Processing sequence in the production of engineered cementitious composites. In C. Oesterlee, E. Denarié, & E. Brühwiller (Eds.), 4th International conference on Construction Materials : performance, innovations and structural implications (pp. 333–338). Presented at the 4th International conference on Construction Materials : Performance, innovations and structural implications (ConMat  ’09), Nagoya, Japan: Japan Concrete Institute (JCI).
Vancouver
1.
Zhou J, Qian S, Ye G, van Breugel K, Li VC. Processing sequence in the production of engineered cementitious composites. In: Oesterlee C, Denarié E, Brühwiller E, editors. 4th International conference on Construction Materials : performance, innovations and structural implications. Nagoya, Japan: Japan Concrete Institute (JCI); 2009. p. 333–8.
MLA
Zhou, Jian, Shunzhi Qian, Guang Ye, et al. “Processing Sequence in the Production of Engineered Cementitious Composites.” 4th International Conference on Construction Materials : Performance, Innovations and Structural Implications. Ed. C Oesterlee, E Denarié, & E Brühwiller. Nagoya, Japan: Japan Concrete Institute (JCI), 2009. 333–338. Print.