Effect of fillers on the mechanical properties and durability of steel slag concrete

Lai, M.H.; Chen, Z.H.; Wang, Y.H.; Ho, J.C.M.

doi:10.1016/j.conbuildmat.2022.127495

Cited by 87 publications

(17 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The slump of concrete in all grades of ordinary cement used was kept constant at 190 mm using a polycarboxylate‐based superplasticizer, while in the case of using calcium aluminate cement, the slump was almost 100 mm in all grades of cement. It should be noted that according to past research, the use of cement substitutes and fillers in concrete including steel slag aggregates, improves flowability 32–34 . Therefore, in this research, the use of microsilica, in addition to improving the mechanical characteristics of HSC made with steel slag aggregates, also improves its flowability.…”

Section: Methodsmentioning

confidence: 67%

“…It should be noted that according to past research, the use of cement substitutes and fillers in concrete including steel slag aggregates, improves flowability. [32][33][34] Therefore, in this research, the use of microsilica, in addition to improving the mechanical characteristics of HSC made with steel slag aggregates, also improves its flowability.…”

Section: Materials and MIX Designsmentioning

confidence: 99%

See 1 more Smart Citation

A high‐strength concrete resistant to elevated temperatures using steel slag aggregates

Hajiaghamemar

Mostofinejad

Bahmani

2022

Structural Concrete

View full text Add to dashboard Cite

show abstract

Section: Methodsmentioning

confidence: 67%

Section: Materials and MIX Designsmentioning

confidence: 99%

A high‐strength concrete resistant to elevated temperatures using steel slag aggregates

Hajiaghamemar

Mostofinejad

Bahmani

2022

Structural Concrete

View full text Add to dashboard Cite

show abstract

“…However, when the fineness modulus is larger, an overall increasing trend is observed. Rubber particles distribute homogenously in the cementitious system and filling the voids between aggregates, resulting in larger apparent density and higher strength 65‐68 …”

Section: Resultsmentioning

confidence: 99%

“…Rubber particles distribute homogenously in the cementitious system and filling the voids between aggregates, resulting in larger apparent density and higher strength. [65][66][67][68]…”

Section: Fineness Modulus Of Combined Fine Aggregatementioning

confidence: 99%

Impact of crumb rubber particle size on the mechanical and microstructure properties of rubberized concrete

Ren

Tian

et al. 2022

Structural Concrete

View full text Add to dashboard Cite

Crumb rubber (CR) concrete (CRC) characterized with high ductility and environment friendliness, has recently been studied widely in the field of green concrete. Generally, high volume fraction of CR in cementitious system leads to low strength. However, the effect of CR particle size has not been concluded yet. This paper focuses on the impact of CR size on the mechanical and microstructure properties of CRC. Two novel substitution approaches of CR for natural fine aggregate are adopted. In total, 10 groups are designed and experimentally tested for their workability in fresh state and mechanical properties in hardened state. Brittleness coefficient, fineness modulus, and micro‐morphology of CRC were analyzed and discussed. Results show that as size of CR decreases, workability improves significantly, apparent density and strength exhibit a firstly decrease and then increase trend, with the lowest value obtained around 1.18 mm CR size. The brittleness of concrete was significantly improved in the presence of CR, and the improvement was more significant for smaller‐sized CR. Weak ITZs between CR particles and interfacial porosity are the main reasons for the sharp strength deterioration. Crack arresting effect of CR makes the crack propagation path more tortuous, and smaller particle‐sized CR exhibits greater capability.

show abstract

“…The wet packing density of concrete mix was also improved by partially replacing cement with slag. Moreover, this improvement in wet packing density caused enhanced mechanical properties of concrete including the change in stress-strain curve (Lai et al, 2021(Lai et al, , 2022(Lai et al, , 2023. In addition, use of slag has shown improved performance of concrete after exposure to high temperature (Alharbi et al, 2021;Yuksel et al, 2011;Zhuang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Behaviour of concrete-Filled steel tube having granulated blast furnace slag as fine aggregate in normal strength concrete after exposure to elevated temperature

Gupta,

Patra

2023

Advances in Structural Engineering

View full text Add to dashboard Cite

The significant growth of steel production in India has led to a considerable increase in the production of granulated blast furnace slag (GBS). To resolve the environmental concerns associated with GBS production, it can be used as a substitute for natural fine aggregate in concrete within concrete-filled steel tube (CFST). However, literatures regarding the behaviour of GBS aggregate added concrete-filled steel tubular columns (GBSCFST) after exposure to fire is very limited. Hence the present research work aims to investigate fill the aforementioned research gap. A total 30 number of GBSCFST specimens having square, circular and rectangular shapes, including both intermediate and stub columns, are tested. GBS is used as fine aggregate for preparing infill concrete. All the specimens are heated to varying target temperatures of 200°C, 400°C, 600°C and 800°C with a temperature holding time of 2 h in a furnace. Afterwards, the specimens were left inside the furnace for cooling purposes. Axial compression load was applied to all the specimens by using a compression testing machine with a strain-controlled procedure. The reduction in the load carrying capacity ranged from 1.07% to 12.68% for stub specimens and 1.05% to 19.35% for intermediate specimens heated upto 600°C. However, the load carrying capacity experienced a significant reduction reaching a maximum percentage decrease of 24% and 34% when heated at 800°C. The primary failure shapes observed were local buckling and bulging in stub specimens and mid-height buckling in intermediate specimens.

show abstract

Effect of fillers on the mechanical properties and durability of steel slag concrete

Cited by 87 publications

References 57 publications

A high‐strength concrete resistant to elevated temperatures using steel slag aggregates

A high‐strength concrete resistant to elevated temperatures using steel slag aggregates

Impact of crumb rubber particle size on the mechanical and microstructure properties of rubberized concrete

Behaviour of concrete-Filled steel tube having granulated blast furnace slag as fine aggregate in normal strength concrete after exposure to elevated temperature

Contact Info

Product

Resources

About