Carbon steel slag as cementitious material for self-consolidating concrete

Peng, Yu-Chu; Hwang, Chao‐Lung

doi:10.1631/jzus.a0900635

Cited by 35 publications

(12 citation statements)

References 9 publications

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“…is may be because that the activity of steel slag powder is lower than that of cement, and the water requirement of composite binder containing steel slag powder is less than that of the equal mass cement in the same plastic state. ese results are consistent with a previous study [17].…”

Section: Test Methodssupporting

confidence: 93%

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Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra‐High Performance Concrete

Liu

Guo

2018

Advances in Civil Engineering

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e applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened paste and the concrete fracture surface. e results show that the fluidity of the paste containing steel slag is higher. e nonevaporable water content of the hardened paste containing steel slag powder is close to that of the control sample at late ages. Both steel slag powder and steel slag aggregate react and connect tightly to gels and hardened paste, respectively. When the cement replacement ratio is no more than 10%, the proportion of pores larger than 50 nm in the hardened paste containing steel slag powder is close to that of the control sample, and the UHPC containing steel slag powder can display satisfactory compressive strengths. e UHPC containing steel slag aggregate demonstrates higher compressive strengths.

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Section: Test Methodssupporting

confidence: 93%

“…Steel slag powder has hydraulic properties, and its hydration process is similar to that of cement [15,16]. Studies have shown that concrete that contains steel slag powder performs better in terms of workability than plain cement concrete does [17].…”

Section: Introductionmentioning

confidence: 99%

Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra‐High Performance Concrete

Liu

Guo

2018

Advances in Civil Engineering

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“…Boukendakdji et al [21] showed that the use of Algerian steel slag as supplementary cementitious material in SCC is possible and that the stability of the mix could be attained. Peng and Hwang [22] used carbon steel slag (CSS) as a fine supplementary cementitious material in SCC. Sheen et al [23] used steel reducing slags (SRS) as fillers and cement substitutions.…”

Section: Use Of Steel Slag In Normal and Self-compactingmentioning

confidence: 99%

Towards Sustainable Self-Compacting Concrete: Effect of Recycled Slag Coarse Aggregate on the Fresh Properties of SCC

Qasrawi

2018

Advances in Civil Engineering

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Steel industry results in accumulation of steel slag wastes causing severe environmental problems. ese wastes can be recycled and replace natural aggregates resulting in sustainable green concrete. In this research, natural aggregates in self-compacting concrete (SCC) are replaced, wholly or partly, by steel slag coarse aggregates that were produced by crushing by-product boulders obtained from the steel industry. Fresh properties, (workability, stability, bleeding, air content, and fresh density) are the crucial ones that affect the final properties of SCC. erefore, it becomes important to evaluate the impact of SSA on the fresh properties of SCC mixes. e properties that are studied include stability, flowability, blocking, segregation, and bleeding. Furthermore, air content and fresh density are measured. In order to evaluate the impact of SSA on SCC properties, several testing methods are employed. Slump flow, V-funnel, column segregation, sieve segregation, segregation probe, U-shaped box, and VSI tests have been used in the study. e results show that it is possible to produce SCC using steel slag aggregate. Hence, green sustainable SCC can be produced. e results show that the fresh properties become sensitive for SSA replacement ratios exceeding 50%.

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“…Li et al [7] explored that steel-slag powder possibly produced its hydraulic properties, affecting the hydration process like cement. Peng et al [8] stated that the steel-slag powder contributed to better workability and viscosity of concrete, and, it could also produce a reduction in promptly autogenous shrinkage and adiabatic temperature growth [9,10]. Song et al [11] and Nguyen et al [12] recently reported that the mechanical resistance and self-sensing capacity of high-performance fiber-reinforced concrete could be enhanced using steel-slag powder as partial cement replacement material.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Compressive Characteristics of Steel-Slag Concrete

et al. 2020

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The compressive characteristics of the steel-slag concrete were investigated through an experimental test. The term “steel-slag concrete” in this research work was defined as a kind of concrete using steel-slag material as a coarse aggregate replacement. Three types of the steel-slag concretes were examined under compression as follows: XT01, XT02, XT03 with their cement/water ratios of 1.76, 2.00, 2.21, respectively. The coarse aggregate used in producing concrete was steel-slag material, while the fine aggregate was traditional river sand; the ratio of coarse aggregate to fine aggregate was kept constant at a value of 1.98. Firstly, the age-dependent compressive strength of the steel-slag concretes were investigated up to one year; it was clear that the concrete strength increased rapidly in 7 days, then more and more slowly after that. Secondly, the modulus of elasticity and Poisson’s ratio of the steel-slag concretes were explored at the 28-day age. Thirdly, there was an important size and shape effect on the compressive strength of the XT02, and its significance of brittleness in failure was analytically analyzed. Lastly, the effects of water amount added in the XT02 on its compressive strength and slump were evaluated at the 28-day age.

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Carbon steel slag as cementitious material for self-consolidating concrete

Cited by 35 publications

References 9 publications

Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra‐High Performance Concrete

Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra‐High Performance Concrete

Towards Sustainable Self-Compacting Concrete: Effect of Recycled Slag Coarse Aggregate on the Fresh Properties of SCC

Investigation on Compressive Characteristics of Steel-Slag Concrete

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