Evaluating Strength Development and Durability of High-Strength Concrete with 60% of Ground-Granulated Blast Furnace Slag

Yuan, Tian; Yang, Jun‐Mo; Kim, Ki-Don; Yoon, Young-Soo

doi:10.9798/kosham.2018.18.7.307

Cited by 3 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…제강슬래그를 건설 분야에 활용한 기존의 문헌들을 살펴 보면, 제강슬래그는 주로 잔골재 및 굵은골재로 혼입한 연구 가 다수였다 (Maslehuddin et al, 2003;Arribas et al, 2014;Qasrawi, 2014 (Pan et al, 2019;Zhang et al, 2019;Roslan et al, 2020). 연구사례를 살펴보면, 국외의 한 문헌 (Pan et al, 2019) (Park, 2008; (Gao et al, 2013;Mo et al, 2017 (Shin et al, 2016;Yuan et al, 2018 (Tang, 1996;Shin et al, 2016…”

unclassified

Assessing the Effects of Steelmaking Slag Powder on the Pore Structure and Durability of Concrete

홍¹,

원²,

최³

et al. 2021

J. Korean Soc. Hazard Mitig

Self Cite

View full text Add to dashboard Cite

This study analyzes the pore structure and durability of concrete according to four different ratios of steelmaking slag powder (SSP). Concrete containing SSP increased the formation of gel and capillary pores due to delayed hydration, and the largest cumulative pore volume was observed when the incorporation ratio was 20%. In terms of durability, the incorporation of SSP had decreased performance compared to concrete without SSP (NN), which was due to changes in the pore structure caused by incorporating SSP. In the case of the freezing and thawing resistance, concrete containing 10% SSP showed a remarkable relative dynamic elastic modulus of more than 80%, and a similar carbonation depth was predicted within 15% of SSP. In addition, the resistance performance of chloride ion migration in concrete with SSP was excellent. Accordingly, it can be utilized as a supplementary cementitious material if the freezing and thawing resistance of concrete containing 15% SSP is secured.

show abstract

unclassified

Assessing the Effects of Steelmaking Slag Powder on the Pore Structure and Durability of Concrete

홍¹,

원²,

최³

et al. 2021

J. Korean Soc. Hazard Mitig

Self Cite

View full text Add to dashboard Cite

show abstract

Shear Capacity Contribution of Steel Fiber Reinforced High-Strength Concrete Compared with and without Stirrup

Yuan

Yoo

Yang

et al. 2020

Int J Concr Struct Mater

View full text Add to dashboard Cite

This study presents the shear capacity of eco-friendly high-strength concrete (HSC) beams reinforced by 0.75% (by volume) of hooked steel fibers or shear stirrups with various spacings. Five large-scale HSC beams with steel fibers or stirrups were tested and investigated with respect to shear capacity, failure mode, and crack patterns. The test results indicate that all five tested beams finally failed by a shear-critical failure mode and that the use of 0.75 vol% of steel fibers significantly improved the shear strength although it decreased the diagonal crack angle of HSC beam in the case of without stirrups. There are some different properties compared with ACI 318-19 recommendation, but the use of 0.75 vol% steel fibers exhibited approximately 13.2% higher shear strength when compared with that of minimum shear reinforcement for the HSC beam. Furthermore, the shear capacity of steel fibers calculated by experimental data, and it was compared with several prediction equations. The prediction models containing fiber factor were more closely agreeable with test results with a minimum of 10.9% difference.

show abstract

Experimental Study on the Evaluation of the Compressive Strength of Concrete Bricks Containing Waste Fiber

Ryou¹,

Lee²,

Ahn³

et al. 2019

J. Korean Soc. Hazard Mitig

View full text Add to dashboard Cite

Owing to the environmental problems of the 21st century, such as global warming and soil and water pollution, environmental improvement has been recognized as an important issue. The average amount of industrial waste generated nationwide was 160,000 tons per day in 2016, which was enough to cause various environmental problems. Recycling is recognized as the most ideal treatment method because the disposal, incineration, and recycling of waste fiber, which is an industrial waste, and landfill cause many environmental problems such as subsidence, soil pollution, and carbon dioxide emission. Thus, in this study, concrete bricks were produced using waste fiber as the material, and the unconfined compressive strength characteristics according to the mixing amount and blending ratio of the waste fiber were obtained. In addition, the crystal structure of the concrete brick was visualized and analyzed using a scanning electron microscope (SEM), and the physical structure of the concrete brick made from waste fiber was obtained by X-Ray diffraction (XRD). As a result of the experiment, the uniaxial compressive strength of the concrete bricks decreased for increasing amounts of waste fiber. However, there is a value that satisfies the minimum uniaxial compressive strength standard for waste fiber incorporation, which is expected to be commercialized in the future.

show abstract

Evaluating Strength Development and Durability of High-Strength Concrete with 60% of Ground-Granulated Blast Furnace Slag

Cited by 3 publications

References 13 publications

Assessing the Effects of Steelmaking Slag Powder on the Pore Structure and Durability of Concrete

Assessing the Effects of Steelmaking Slag Powder on the Pore Structure and Durability of Concrete

Shear Capacity Contribution of Steel Fiber Reinforced High-Strength Concrete Compared with and without Stirrup

Experimental Study on the Evaluation of the Compressive Strength of Concrete Bricks Containing Waste Fiber

Contact Info

Product

Resources

About