Combined effect of recycled tire rubber and carbon nanotubes on the mechanical properties and microstructure of concrete

Shao, Jianwen; Zhu, Han; Zhao, Bo; Haruna, Sadi İbrahim; Xue, Gang; Jiang, Wenlixia; Wu, Kexiao; Yang, Jian

doi:10.1016/j.conbuildmat.2022.126493

Cited by 35 publications

(15 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This finding is consistent with Reference 42. In contrast, the incorporation of nanomaterials filled the voids in cement composite and densified the mixture, resulting in improved strength 43 . Thus, the ductility index is expected to be enhanced, as found in the previous study 44.…”

Section: Resultssupporting

confidence: 91%

“…In contrast, the incorporation of nanomaterials filled the voids in cement composite and densified the mixture, resulting in improved strength. 43 Thus, the ductility index is expected to be enhanced, as found in the previous study 44. However, a decrease in ductility index was observed in this study; this is attributed to the inclusion of SF and may be due to the nature of the specimens adopted in this study for the drop-weight impact test.…”

Section: Ductility Indexsupporting

confidence: 62%

See 1 more Smart Citation

Experimental study, modeling, and reliability analysis of impact resistance of micro steel fiber‐reinforced concrete modified with nano silica

Haruna

Zhu

Shao

2022

Structural Concrete

Self Cite

View full text Add to dashboard Cite

This paper presents the experimental, statistical modeling, and reliability analysis of impact resistance of micro steel fiber reinforced concrete (FRC) incorporated with nano silica (NS) using a drop-weight impact test. U-shaped concrete specimens were developed for the experimental work. The result showed that the combined effect of micro steel fiber (SF) and NS led to significant improvement of impact resistance of concrete mixtures, and lower ductility ratios were obtained for specimens with high SF and NS content. A common failure pattern was observed for all the concrete specimens. The response surface methodology models developed to predict the impact resistance of FRC-NS mixtures showed a high degree of correlation. Due to the variation in the dropweight impact test' result, the Weibull distribution (WD) function was employed for advance analysis, and the result revealed that the probabilistic distribution of first crack strength (N 1 ) and failure strength (N 2 ) follows the two-parameter WD.

show abstract

Section: Resultssupporting

confidence: 91%

Section: Ductility Indexsupporting

confidence: 62%

Experimental study, modeling, and reliability analysis of impact resistance of micro steel fiber‐reinforced concrete modified with nano silica

Haruna

Zhu

Shao

2022

Structural Concrete

Self Cite

View full text Add to dashboard Cite

show abstract

“…The larger the flexuralcompression ratio of the specimen indicates the high crack resistance. 34 The flexural-compression ratio of SSC is shown in Figure 11. The flexural-compression ratio of the SSC F mixture increased and then decreased with the increased SSA F content, and can increase by 23.9% at the maximum.…”

Section: Flexural Strengthmentioning

confidence: 99%

Mechanical performance, microstructure, and damage model of concrete containing steel slag aggregate

Xue

et al. 2022

Structural Concrete

Self Cite

View full text Add to dashboard Cite

Reusing industrial solid waste in cement‐based products is an economical and environmentally friendly solution. This study investigated the effect of steel slag on the mechanical properties of concrete mixtures, and development of damage constitutive relationship of steel slag concrete (SSC). Two steel slag aggregates, including fine steel slag aggregate (SSAF) and coarse steel slag aggregate (SSAC) were incorporated into the concrete mixtures to SSC. The portions of natural sand and coarse aggregate each were replaced with SSAF and SSAC at 10%–100% (interval of 20%) by weight. Therefore, effects of SSAF and SSAC on the mechanical properties of SSC mixtures were evaluated separately. Moreover, damage model of SSC mixtures was developed based on Lemaitre's equivalent strain principle and Weibull probability density function. The damage constitutive model was revised using the functional relationship between the toughness index, brittleness index, and distribution parameters. The results indicate that SSC's mechanical properties, crack resistance, and toughness have been significantly improved with increased steel slag content. However, reduction in strength was observed in the SSC specimens containing steel slag above 50% replacement. Nevertheless, these strengths are higher than that of normal concrete. The modified damage constitutive relationship fits better with the experimental results.

show abstract

“…Among all the waste which has been generated on this universe the dumping of plastic waste reminds more when compared to the any other waste in the solid waste (1) . The generation of waste material produced nowadays is inversely proportional to the rate of energy conversion (2) . If we take globally among 79% of total plastic waste were produced and only 9% of the waste is recycled (3) .…”

Section: Introductionmentioning

confidence: 99%

Effect of Polystyrene Waste on Concrete at Elevated Temperature

Rajaram¹,

Kandasamy²,

Ravichandran³

et al. 2022

IJST

View full text Add to dashboard Cite

Objectives:The purpose of the present study is to examine the thermal and impact behaviour of the concrete containing polystyrene waste as aggregates. Methods: The concrete specimens were cast and cured in a conventional way to examine the mechanical behaviour of the concrete. A separate equipment was prepared to determine the impact strength of the concrete as per ASTM D5420-21. The thermal behaviour of the concrete with plastic aggregates were also examined with reference to IS 7861-1 (1975). Artificial Neural Network was also used to predict and compare the properties between both the conventional and plastic concrete. Findings: The mechanical behaviour of the concrete behaves well at Mix 2 when compared to other mixes. The impact strength of the concrete was found to be 98.375 J at Mix3 which was 20.69% higher than the Mix2. At Mix2 the 7 days compression strength in elevated temperature is 16.79 N/mm 2 which was 4.8% higher than the Mix 1 and 31.74% higher than the Mix 3. At 28 days, the compressive strength of concrete containing 50% replacement of aggregate exposed to temperature 50 o c for 24 hours is 26.84 N/mm 2 which shows a better result and resistance in the thermal condition than the other mixes. ANN also gives reliable predicted values which exhibits a clear relation with the inclusion of the plastic aggregate and concrete matrix with some minimum errors. Novelty: From the experimental investigation it was observed that the plastic concrete fails in the transition zone of concrete due to the weaker bonding between the plastic aggregate and cement matrix. The plastic aggregate has not undergone any crushing failure in the concrete specimens when compared to the conventional aggregate. Thus, this solid polystyrene waste can be used as an alternative material for coarse aggregate in concrete.

show abstract

Combined effect of recycled tire rubber and carbon nanotubes on the mechanical properties and microstructure of concrete

Cited by 35 publications

References 76 publications

Experimental study, modeling, and reliability analysis of impact resistance of micro steel fiber‐reinforced concrete modified with nano silica

Experimental study, modeling, and reliability analysis of impact resistance of micro steel fiber‐reinforced concrete modified with nano silica

Mechanical performance, microstructure, and damage model of concrete containing steel slag aggregate

Effect of Polystyrene Waste on Concrete at Elevated Temperature

Contact Info

Product

Resources

About