Instant-chilled steel slag aggregate in concrete — Fracture related properties

Montgomery, Denis; Wang, George

doi:10.1016/0008-8846(92)90098-g

Cited by 44 publications

(12 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, these two SFS aggregate sources reduced the split tensile strength relative to the control concrete. These findings agree with the literature in that SFS aggregates can increase [18,20,22,34,42,56,57,[67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82][83][84][85][86] or decrease [16,59,[87][88][89] the compressive strength and similarly increase [18,20,22,42,57,70,[72][73][74]76,79,82,85,90,91] or decrease [75,80,89] …”

Section: Concrete With Sfs Aggregatessupporting

confidence: 93%

“…Increased strength properties could be the result of a stronger interfacial transition zone in concrete with SFS aggregates, as has been evidenced through microhardness testing [68,70]. One study suggested that the reduction in concrete strength with SFS aggregates could be due to poor paste-aggregate bonding as a result of hydration or reaction products on the surface of the slag particle [59].…”

Section: Concrete With Sfs Aggregatesmentioning

confidence: 98%

See 1 more Smart Citation

Steel furnace slag aggregate expansion and hardened concrete properties

Brand

Roesler

2015

Cement and Concrete Composites

196

View full text Add to dashboard Cite

Section: Concrete With Sfs Aggregatessupporting

confidence: 93%

Section: Concrete With Sfs Aggregatesmentioning

confidence: 98%

Steel furnace slag aggregate expansion and hardened concrete properties

Brand

Roesler

2015

Cement and Concrete Composites

196

View full text Add to dashboard Cite

“…Minor elements include manganese, iron, aluminium and sulfur compounds, as well as trace amounts of other elements. The main mineral phases characterized by X-ray diffraction are C 2 S, C 3 S, C 2 F, Ca(OH) 2 The P.O grade-42.5 from Huaxin Corp. was used.…”

Section: Introductionmentioning

confidence: 99%

“…The large unused portion was deposited in areas adjacent to the steel manufacturing plants, occupied a large amount of farms, and polluted environment. In recent years, the excellent physical and mechanical properties generated by steel slag have been reported and give a promise for a potential new use for the material in civil engineering as aggregates [2][3][4][5][6] Volume stability of steel slag has drawn great concerns for the cementitious material can not undergo any appreciable volume change after hardening. Several process methods have been developed to gain sufficient volume stability.…”

Section: Introductionmentioning

confidence: 99%

Methods for improving volume stability of steel slag as fine aggregate

Lun

Zhou

et al. 2008

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

View full text Add to dashboard Cite

Suitable methods for enhancing the volume stability of steel slag utilized as fine aggregate were determined. The effects of steam treatment at 100 ℃ and autoclave treatment under 2.0 MPa on the soundness of steel slag sand were investigated by means of powder ratio, linear expansion, compressive and flexural strength. DTA, EDX, XRD and ethylene glycol methods were employed to analyze both the treated slags and susceptible expansion grains. Experimental results indicate that powder ratio, content of free lime and rate of linear expansion can express the improvement in volume stability of different treated methods. Steam treatment process cannot ultimately prevent specimens from cracking and decrease of strength, but mortar made from autoclave treated slag keeps integration subjected to hot water of 80 ℃ until 28 d and its strength do not show significant decrement. The hydration of over-burn free lime and periclase phase are the main cause for the disintegration or crack of untreated and steam treated steel slag's specimens. Autoclave treatment process is more effective than steam treatment process on enhancement of volume stability of steel slag.

show abstract

“…In the last approximate 30 years, researches have been conducted on steel slag use as aggregates in concrete and its advantageous properties have been reported (Arribas, Santamaria, Ruiz, Ortega-Lopez, and Manso, 2015;Montgomery and Wang, 1992;Papayianni and Anastasiou, 2010;Sinha, 2014;Sumi and Malathy, 2013). The improvement and modification of concrete mainly come from the unique characteristics of steel slag.…”

Section: Introductionmentioning

confidence: 99%

Can Steel Slag Be Used as an Aggregate in Concrete and How? A Technical Approach by and Testing and Theoretical Molding

Wang

2016

Construction Research Congress 2016

View full text Add to dashboard Cite

Steel slag is the molten byproduct from steelmaking operations that is subsequently air-cooled for use. It has been used in cement manufacture and as unbound granular materials in construction. While numerous studies have revealed that concrete containing steel slag aggregate possesses good mechanical properties, and slag, as a byproduct, is cheaper than virgin aggregates, its practical use in portland cement concrete is currently a forbidden area in the construction practices. What is the practicality, where is the crux of converting research results into to real production, and how to build the bridge between the laboratory experiment and the end products? Based on the philosophy of slag utilization, i.e., laboratory testing, field demonstration, and criteria establishment, the questions to be answered includes (i) two distinct laboratory test methods to determine the expansion force generated by slag particles; (ii) conversion of the expansion force of mass slag aggregate to the expansion force of single slag particle; (iii) mechanical disruption model of slag failure; and (iv) usability criteria for the use of steel slag in a rigid or restrained matrices. The paper introduced the answers for the first two questions; and provides the mechanical model and criterion deduction to answer the other two questions that lead to criteria and specification establishment. 2 INTRODUCTIONThe intention to use of steel slag to replace natural aggregate in concrete is initially based on its availability and good characteristics. In addition, sustainable development of construction industry and conservation of natural resources require using recycled and industrial coproducts of all kinds in construction (Brito and Saikia, 2013; USGS, 2010).

show abstract

Instant-chilled steel slag aggregate in concrete — Fracture related properties

Cited by 44 publications

References 4 publications

Steel furnace slag aggregate expansion and hardened concrete properties

Steel furnace slag aggregate expansion and hardened concrete properties

Methods for improving volume stability of steel slag as fine aggregate

Can Steel Slag Be Used as an Aggregate in Concrete and How? A Technical Approach by and Testing and Theoretical Molding

Contact Info

Product

Resources

About