Fresh and mechanical performance and freeze-thaw durability of steel fiber-reinforced rubber self-compacting concrete (SRSCC)

Wang, Jiaqing; Dai, Qingli; Si, Ruizhe; Ma, Yunxiang; Guo, Shuaicheng

doi:10.1016/j.jclepro.2020.123180

Cited by 72 publications

(31 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It undergoes a sudden failure after carrying the load beyond its peak capacity and it has very low residual strength (almost negligible compared to fiber-reinforced concrete) [ 7 ]. Mechanical performance of PCC undergoes significant degradation with time when subjected to environmental stresses (freeze-thaw) [ 8 ] and weathering actions of water and acid attack [ 9 ]. Due to the inherent weakness of PCC under tensile loadings, large structural dimensions cannot be avoided unless it is reinforced with some high strength material i.e., steel rebars, glass fiber-reinforced polymers (GFRP) bars, carbon fiber-reinforced polymer (CFRP) bars, etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of Varying Steel Fiber Content on Strength and Permeability Characteristics of High Strength Concrete with Micro Silica

et al. 2020

View full text Add to dashboard Cite

For the efficient and durable design of concrete, the role of fiber-reinforcements with mineral admixtures needs to be properly investigated considering various factors such as contents of fibers and potential supplementary cementitious material. Interactive effects of fibers and mineral admixtures are also needed to be appropriately studied. In this paper, properties of concrete were investigated with individual and combined incorporation of steel fiber (SF) and micro-silica (MS). SF was used at six different levels i.e., low fiber volume (0.05% and 0.1%), medium fiber volume (0.25% and 0.5%) and high fiber volume (1% and 2%). Each volume fraction of SF was investigated with 0%, 5% and 10% MS as by volume of binder. All concrete mixtures were assessed based on the results of important mechanical and permeability tests. The results revealed that varying fiber dosage showed mixed effects on the compressive (compressive strength and elastic modulus) and permeability (water absorption and chloride ion penetration) properties of concrete. Generally, low to medium volume fractions of fibers were useful in advancing the compressive strength and elastic modulus of concrete, whereas high fiber fractions showed detrimental effects on compressive strength and permeability resistance. The addition of MS with SF is not only beneficial to boost the strength properties, but it also improves the interaction between fibers and binder matrix. MS minimizes the negative effects of high fiber doses on the properties of concrete.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Varying Steel Fiber Content on Strength and Permeability Characteristics of High Strength Concrete with Micro Silica

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Nili et al, 2019 [63] and Singh et al, 2014 [1] show the higher split tensile strength than the control mix, resulting in a higher strength ratio. Even though there was For the family I, Wang et al, 2020 [50] observed the split tensile strength to compressive strength ratio as highest in the range of 0.065 to 0.1, as observed from Figure 2a. Among the family I, Wang et al, 2020 [50] possess higher split tensile strength, which results in a higher strength ratio.…”

Section: Relationship Between Compressive Strength and Split Tensile Strength To Compressive Strength Ratio For Different Scc Gradesmentioning

confidence: 69%

“…Even though there was For the family I, Wang et al, 2020 [50] observed the split tensile strength to compressive strength ratio as highest in the range of 0.065 to 0.1, as observed from Figure 2a. Among the family I, Wang et al, 2020 [50] possess higher split tensile strength, which results in a higher strength ratio. The remaining authors have a strength ratio in the range of 0.045 to 0.065 due to medium split tensile strength.…”

Section: Relationship Between Compressive Strength and Split Tensile Strength To Compressive Strength Ratio For Different Scc Gradesmentioning

confidence: 69%

“…The remaining authors have a strength ratio in the range of 0.045 to 0.065 due to medium split tensile strength. Except for Wang et al, 2020 [50] and Sadeghi-Nik et al, 2019 [49], the strength ratio decreases with an increase in compressive strength observed whereas for the remaining authors the strength ratio increases with increases in compressive strength. The strength ratio converges at a point of 0.055, when compressive strength greater than 75 MPa observed.…”

Section: Relationship Between Compressive Strength and Split Tensile Strength To Compressive Strength Ratio For Different Scc Gradesmentioning

confidence: 92%

See 1 more Smart Citation

Impact of Design Parameters on the Ratio of Compressive to Split Tensile Strength of Self-Compacting Concrete with Recycled Aggregate

Martínez‐García

Jagadesh²,

Búrdalo

et al. 2021

Materials

View full text Add to dashboard Cite

Most concrete studies are concentrated on mechanical properties especially strength properties either directly or indirectly (fresh and durability properties). Hence, the ratio of split tensile strength to compressive strength plays a vital role in defining the concrete properties. In this review, the impact of design parameters on the strength ratio of various grades of Self-Compacting Concrete (SCC) with recycled aggregate is assessed. The design parameters considered for the study are Water to Cement (W/C) ratio, Water to Binder (W/B) ratio, Total Aggregates to Cement (TA/C) ratio, Fine Aggregate to Coarse Aggregate (FA/CA) ratio, Water to Solid (W/S) ratio in percentage, superplasticizer (SP) content (kg/cu.m), replacement percentage of recycled coarse aggregates (RCA), replacement percentage of recycled fine aggregates (RFA), fresh density and loading area of the specimen. It is observed that the strength ratio of SCC with recycled aggregates is affected by design parameters.

show abstract

“…In this study, SiC was substituted for 50% and 100% of fine aggregate in order to improve the thermal conductivity. In addition, graphite was used at 5% of volume for enhancing the thermal conductivity, and the arched-type steel fiber was used for compensating the reduction in mechanical properties by the graphite [ 23 , 24 , 25 , 26 , 27 ]. Furthermore, steel fiber could be used as the thermal conductive material because the steel fiber has a high level of thermal conductivity [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Thermal Conductive Materials on the Freeze-Thaw Resistance of Concrete

et al. 2021

View full text Add to dashboard Cite

To solve the problem of black ice, many studies are being carried out. The key in recent days is enhancing the thermal conductivity of concrete. In this study, to improve the thermal conductivity, silicon carbide was used to substitute 50% and 100% of the fine aggregate. In addition, steel fiber is not only for enhancing the mechanical properties but could enhance thermal conductive material. Hence, the arched-type steel fiber was used up to a 1% volume fraction in this study. Furthermore, graphite was used for 5% of the volume fraction for enhancing the thermal conductivity. However, thermal damage would occur due to the difference in thermal conductivity between materials. Therefore, the thermal durability must be verified first. The target application of the concrete in this study was its use as road paving material. To evaluate the thermal durability, freeze–thaw and rapid cyclic thermal attacks were performed. The thermal conductivity of the specimens was increased with the increase in thermal conductive materials. Graphite has already been reported to have a negative effect on mechanical properties, and the results showed that this was the case. However, the steel fiber compensated for the negative effect of graphite, and the silicon carbide provided a filler effect. Graphite also had a negative effect on the freeze–thaw and rapid cyclic thermal attack, but the steel fiber compensated for the reduction in thermal durability. The silicon carbide also helped to improve the thermal durability in the same way as steel fiber. Comprehensively, the steel fiber enhanced all of the properties of the tests. Using 100% silicon carbide was considered the acceptable range, but 50% of silicon carbide was the best. Graphite decreased all the properties except for the thermal conductivity. Therefore, the content of graphite or using other conductive materials used should be carefully considered in further studies.

show abstract

Fresh and mechanical performance and freeze-thaw durability of steel fiber-reinforced rubber self-compacting concrete (SRSCC)

Cited by 72 publications

References 40 publications

Effect of Varying Steel Fiber Content on Strength and Permeability Characteristics of High Strength Concrete with Micro Silica

Effect of Varying Steel Fiber Content on Strength and Permeability Characteristics of High Strength Concrete with Micro Silica

Impact of Design Parameters on the Ratio of Compressive to Split Tensile Strength of Self-Compacting Concrete with Recycled Aggregate

Effects of Thermal Conductive Materials on the Freeze-Thaw Resistance of Concrete

Contact Info

Product

Resources

About