Effect of high temperature on properties of steel slag aggregate concrete

Netinger, Ivanka; Varevac, Damir; Bjegović, Dubravka; Morić, Dragan

doi:10.1016/j.firesaf.2013.03.008

Cited by 40 publications

(25 citation statements)

References 18 publications

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“…Similarly they concluded that no segregation and bleeding were observed in placing and compacting the concrete. Netinger et al [42] studied the increasing content of steel slag in the mixture and reported reduction in workability.…”

Section: Effect On Workabilitymentioning

confidence: 99%

“…These increases in the air content may be attributed to angular particle size of steel slag compared to natural aggregates. Netinger et al [42] studied that the air content of reference concrete was 0.9% but increased to 2.8% due to addition of steel slag.…”

Section: Effect On Air Contentmentioning

confidence: 99%

“…The results showed that flexural strength of concrete having steel slag was higher than control mix. Netinger et al [42] investigated the effect of temperature on flexural strength of concrete having steel slag. They observed that flexural strength of specimen having high amount of steel slag was highly affected by temperature beyond 873 K. The flexural strength decreased to zero beyond this temperature.…”

Section: Effect On Flexural Strengthmentioning

confidence: 99%

“…This increase may be attributed to hardness of steel slag. Netinger et al [42] studied the effect of temperature on concrete having steel slag as aggregate. They concluded that modulus of elasticity increased up to 373 K but beyond this there was decrease in modulus of elasticity.…”

Section: Effect On Modulus Of Elasticitymentioning

confidence: 99%

See 3 more Smart Citations

Influence of Glass Powder and Steel Slag on Properties of Concrete: A Review

Ali¹,

Rahman²,

Khan³

2017

CEJ

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To overcome the scarcity of natural resources as construction material and to reduce the hazards from industries, industrial wastes can play a very significant role. In this paper, the influence of glass powder and steel slag is reviewed. It is concluded that glass powder and steel slag can upset some portion of concrete thereby providing significant improvement in mechanical properties of concrete consequently reducing the environmental hazards from industries.

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Section: Effect On Workabilitymentioning

confidence: 99%

Section: Effect On Air Contentmentioning

confidence: 99%

Section: Effect On Flexural Strengthmentioning

confidence: 99%

Section: Effect On Modulus Of Elasticitymentioning

confidence: 99%

See 2 more Smart Citations

Influence of Glass Powder and Steel Slag on Properties of Concrete: A Review

Ali¹,

Rahman²,

Khan³

2017

CEJ

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show abstract

“…The first category investigates the degree of deterioration on the mechanical properties of concrete exposed to high temperatures and evaluates the fire damaged concrete by using nondestructive tools such as ultrasonic and resonance vibration techniques [3] [4]. The influence of high temperatures on the mechan- 3) The coarsening of pore structure due to void formation as a result of loss of bound water [13], 4) The pore pressure effects due to buildup of vapor pressure inside closed pores [14] and, 5) Cracking that develops as a result of the rehydration of lime [15].…”

Section: Introductionmentioning

confidence: 99%

Effect of High Temperatures on the Microstructure of Cement Paste

Tantawy¹

2017

MSCE

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The microstructural and compositional changes within the cement paste exposed to high temperatures were monitored by XRD, FTIR, TGA/DTA and SEM techniques to understand the nature of decomposition of C-S-H gel and the associated physicomechanical properties of thermally damaged cement paste. OPC paste (w/c ratio 0.27) was hydrated for 28 days then fired up to 750˚C for 2 hours (heating rate 10˚C/min). The relative mass percent of calcium hydrates and portlandite was estimated by calculations derived from TGA results. Beyond 450˚C, the percentage of portlandite sharply diminishes and C-S-H progressively decomposes into C 2 S and C 3 S until complete loss of calcium hydrates content occurs at 750˚C. An increase of the total porosity, severe loss in mechanical strength and propagation of harmful cracks occurs. The thermal shock as a result of cooling of the heated cement paste and the rehydration of lime enhance the propagation of harmful cracks.

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Flame‐retardant rigid polyurethane foam composites with the incorporation of steel slag and DMMP: A novel strategy for utilizing metallurgical solid waste

Shen,

Jiang,

Gao

et al. 2024

J of Applied Polymer Sci

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Steel slag (SS) as solid waste, has low resource utilization efficiency and seriously endangers environmental safety and human health. To explore the potential utilization value of SS and address the flammability challenge of rigid polyurethane foam (RPUF), with a novel flame‐retardant system composed by SS and dimethyl methyl phosphonate (DMMP) was explored. The DMMP/SS system effectively improved the high temperature stability of the RPUF composites. When the mass ratio of SS and DMMP was 1:1, the limiting oxygen index of RPUF/DMMP/SS reached 23.1 vol% and UL‐94 vertical combustion tests passed V‐2 level. Upon incorporation of 15 wt% DMMP, the initial decomposition temperature (T−5 wt%) reduced to 165.3°C, a decrease of 32.2%, while the Tmax2 and residue yield at 700°C exhibited negligible alteration. The peak heat release rate of RPUF/DMMP/SS composite (118.20 W g−1) was 11.02% lower than that of pure RPUF, indicating the significant enhancement of fire safety of the composites. Results confirmed that a synergistic flame‐retardant mechanism was existed between DMMP and SS in enhancing the fire safety of RPUF composite. Introducing a 20 wt% SS content reduces the ID/IG ratio to 1.85, thereby markedly enhancing its heat resistance. This work provides a new application field of SS and paves a novel approach to enhance fire safety of polymers.

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Effect of high temperature on properties of steel slag aggregate concrete

Cited by 40 publications

References 18 publications

Influence of Glass Powder and Steel Slag on Properties of Concrete: A Review

Influence of Glass Powder and Steel Slag on Properties of Concrete: A Review

Effect of High Temperatures on the Microstructure of Cement Paste

Flame‐retardant rigid polyurethane foam composites with the incorporation of steel slag and DMMP: A novel strategy for utilizing metallurgical solid waste

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