Effects of the curing methods on the process of plastic shrinkage of self-compacting concrete in Vietnam

  • Nguyen Hung Cuong Faculty of Construction Economics and Management, National University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Luu Van Thuc Faculty of Construction Economics and Management, National University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Tran Hong Hai Faculty of Construction Economics and Management, National University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Pham Nguyen Van Phuong Faculty of Construction Economics and Management, National University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam

Abstract

This paper presents the experimental results of researching on plastic shrinkage (plastic deformation) and the effect of curing methods on the process of plastic shrinkage at the early stages when self-compacting concrete (SCC) starts setting and develops the strength. The experiments were carried out in two typical climatic conditions in Vietnam which are humid and dry. The experiments were conducted with two typical water/powder ratios of 0.3 and 0.35 and four cases of curing methods which are nylon membrane, watering, no-curing and soaking in water (the standard condition). Besides, the influences of plastic shrinkage at the early stages on strength development and occurrence of surface cracking of SCC were also investigated. The conclusions were drawn about the plastic deformation process and the curing method that might minimize plastic shrinkage of SCC, control surface cracking early, and ensure the quality and strength of SCC in the hot and humid climatic condition of Vietnam.

Keywords: plastic shrinkage; self-compacting concrete; hot and humid climate; hardening process.

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Published
30-08-2018
How to Cite
Cuong, N. H., Thuc, L. V., Hai, T. H., & Phuong, P. N. V. (2018). Effects of the curing methods on the process of plastic shrinkage of self-compacting concrete in Vietnam. Journal of Science and Technology in Civil Engineering (STCE) - NUCE, 12(5), 39-50. https://doi.org/10.31814/stce.nuce2018-12(5)-05
Section
Research Papers