Mechanical properties of fly ash modified asphalt treated with crushed waste glasses as fillers for sustainable pavements

Onyelowe, Kennedy C.; Onyia, Michael E.; Onukwugha, Eze; Van, Duc Bui; Obimba-Wogu, Jesuborn; Ikpa, Chidozie

doi:10.14382/epitoanyag-jsbcm.2020.35

Cited by 6 publications

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“…It was concluded that such additives exhibit higher chemical adhesion and specific surface area, respectively. Onyelowe et al, (2020) investigated the influence of using fly ash as a modifier to enhance the mechanical properties of Asphalt for a sustainable pavement construction. The Marshall Stability behavior of the hot mix asphalt when mixed with fly ash was assessed.…”

Section: Introductionmentioning

confidence: 99%

Influence of Additives on the Viscoelastic Behavior of Asphalt Concrete

Sarsam¹

2022

bioex

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Implication of mineral additives into the asphalt concrete mixture can influence the viscoelastic behavior; change the density, gradation, and strength properties. In the present investigation, fly ash and silica fumes were added to the asphalt concrete mixture. Slab samples were compacted with the aid of laboratory roller, and then beam specimens were sawed from the slab samples. The asphalt concrete beam specimens were subjected to repeated flexural stresses through the four-points bending test at 20℃ and under 400 micro-strain level until failure. The influence of the additives was monitored and compared. It was concluded that the phase angle, flexural stiffness, and the fatigue life declines while the cumulative dissipated energy increases after implication of the additives. However, the silica fumes additives exhibit a significant impact on the viscoelastic properties as compared with the control or the fly ash treated mixtures.

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Section: Introductionmentioning

confidence: 99%

Influence of Additives on the Viscoelastic Behavior of Asphalt Concrete

Sarsam¹

2022

bioex

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Application of 3-algorithm ANN programming to predict the strength performance of hydrated-lime activated rice husk ash treated soil

Onyelowe

Iqbal²,

Jalal

et al. 2021

Multiscale and Multidiscip. Model. Exp. and Des.

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Application of Gene Expression Programming to Evaluate Strength Characteristics of Hydrated-Lime-Activated Rice Husk Ash-Treated Expansive Soil

Onyelowe

Jalal

Onyia

et al. 2021

Applied Computational Intelligence and Soft Computing

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Gene expression programming has been applied in this work to predict the California bearing ratio (CBR), unconfined compressive strength (UCS), and resistance value (R value or Rvalue) of expansive soil treated with an improved composites of rice husk ash. Pavement foundations suffer failures due to poor design and construction, poor materials handling and utilization, and management lapses. The evolution of sustainable green materials and optimization and soft computing techniques have been deployed to improve on the deficiencies being suffered in the abovementioned areas of design and construction engineering. In this work, expansive soil classified as A-7-6 group soil was treated with hydrated-lime activated rice husk ash (HARHA) in an incremental proportion to produce 121 datasets, which were used to predict the behavior of the soil’s strength parameters utilizing the mutative and evolutionary algorithms of GEP. The input parameters were HARHA, liquid limit ( w L ), (plastic limit w P , plasticity index I P , optimum moisture content ( w OMC ), clay activity (AC), and (maximum dry density (δmax) while CBR, UCS, and R value were the output parameters. A multiple linear regression (MLR) was also conducted on the datasets in addition to GEP to serve as a check mechanism. At the end of the computing and iterations, MLR and GEP optimization methods proposed three equations corresponding to the output parameters of the work. The responses validation on the predicted models shows a good correlation above 0.9 and a great performance index. The predicted models’ performance has shown that GEP soft computing has predicted models that can be used in the design of CBR, UCS, and R value for soils being used as foundation materials and being treated with admixtures as a binding component.

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Mechanical properties of fly ash modified asphalt treated with crushed waste glasses as fillers for sustainable pavements

Cited by 6 publications

References 0 publications

Influence of Additives on the Viscoelastic Behavior of Asphalt Concrete

Influence of Additives on the Viscoelastic Behavior of Asphalt Concrete

Application of 3-algorithm ANN programming to predict the strength performance of hydrated-lime activated rice husk ash treated soil

Application of Gene Expression Programming to Evaluate Strength Characteristics of Hydrated-Lime-Activated Rice Husk Ash-Treated Expansive Soil

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