Alkali-activated concrete paver blocks made with recycled asphalt pavement (RAP) aggregates

Hossiney, Nabil; Sepuri, Hima Kiran; Mohan, Mothi Krishna; Arjun, H R; Govindaraju, Santhosh; Chyne, Jorisa

doi:10.1016/j.cscm.2019.e00322

Cited by 23 publications

(7 citation statements)

References 20 publications

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“…Precursor materials used for preparation of alkali-activated concrete was fly ash (FLA) and ground granulated blast furnace slag (GGBS). Table 1 presents the physical and chemical properties of precursor materials which comply with previous published study (Hossiney et al, 2020a, Hossiney et al, 2020b. Alkaline solution was prepared by mixing NaOH solution and Na 2 SiO 3 solution.…”

Section: Methodsmentioning

confidence: 95%

Properties of alkali-activated concrete (AAC) incorporating demolished building waste (DBW) as aggregates

et al. 2021

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Section: Methodsmentioning

confidence: 95%

Properties of alkali-activated concrete (AAC) incorporating demolished building waste (DBW) as aggregates

et al. 2021

Self Cite

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“…This further illustrates that the fractionation process of RAP material can effectively reduce the variability of road performance for a RAM. The milling process causes a decrease in the aggregate size of the RAP material [46]. Therefore, for a RAM with different RAP contents, the increase in RAP content led to a decrease in the fineness modulus of the asphalt mixture, increasing the variability of road performance for the RAM [47].…”

Section: Materials Reliability Intervals Reliability (%)mentioning

confidence: 99%

Effect of Fractionation Process and Addition of Composite Crumb Rubber-Modified Asphalt on Road Performance Variability of Recycled Asphalt Mixtures with High Reclaimed Asphalt Pavement (RAP) Content

Wei,

Ji,

Song

et al. 2023

Buildings

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The application of reclaimed asphalt pavement (RAP) can help reduce resource waste and environmental pollution in road construction. However, so far, only a small percentage of RAP materials can be used in road construction. The key obstacles to the application of a recycled asphalt mixture (RAM) with high RAP content are the variability of RAP materials and the difficulty of fully rejuvenating aged asphalt. However, there is still a lack of research on the effect of the variability of RAP materials and recycled asphalt on the quality control of a RAM. Therefore, this study investigates the effects of sieve pretreatment of RAP material using 4.75 mm sieve mesh and the use of composite crumb rubber-modified asphalt (CCRMA) to reclaim aged asphalt on the road performance and frame variability of reclaimed asphalt mixtures. Therefore, this study investigates the effects of the fractionation process of RAP material using 4.75 mm sieve mesh and the use of CCRMA to reclaim aged asphalt on the road performance of a RAM. The results show that the fractionation process can effectively reduce the mitigation of RAP agglomeration and reduce the variability of gradation, which in turn reduces the variability of road performance. The incorporation of CCRMA can effectively improve the high-temperature stability performance and low-temperature cracking resistance. The dynamic stability and the fracture energy of the CRAM (RAM prepared using CCRMA) were four and one and a half times as large as that of the NAM (RAM prepared using base asphalt), respectively. The fractionation process of RAP material and the utilization of CCRMA could help reduce the variability of the RAM while improving the road performance of the RAM.

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“…Finally, the test indicated the possibility of using recycled concrete in terms of 70% coarse and 70% fine aggregate. Hossiney 2020 [6] also added recycled material to the alkali-activated cobbles, which came from asphalt pavements. This behavior is due to the increased expansion of roads in India, which has generated a considerable amount of recycled asphalt pavement aggregate.…”

Section: Overview Of Studies In Concrete Cobblesmentioning

confidence: 99%

Experimental study about the improvement of the mechanical properties of a concrete cobble using recyclable additives

García-León,

Sanchez-Torrez,

Rincon-Cardenas

et al. 2023

DYNA

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This study presents an experimental study to improve the mechanical properties of a concrete cobble using statistical software. First, an experimental design was carried out using a statistical software to obtain the different mixtures of cement with additives such as clay and ashes from ceramic kilns and then optimize the number of tests to evaluate the mechanical properties of a cobble block with different percentages of additives. Finally, the results have shown that with a mixture composed of 93.3% of concrete, 3.33% of clay, and 3.33% of ashes, it was possible to obtain the highest compressive strength with 99% compliance.

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Alkali-activated concrete paver blocks made with recycled asphalt pavement (RAP) aggregates

Cited by 23 publications

References 20 publications

Properties of alkali-activated concrete (AAC) incorporating demolished building waste (DBW) as aggregates

Properties of alkali-activated concrete (AAC) incorporating demolished building waste (DBW) as aggregates

Effect of Fractionation Process and Addition of Composite Crumb Rubber-Modified Asphalt on Road Performance Variability of Recycled Asphalt Mixtures with High Reclaimed Asphalt Pavement (RAP) Content

Experimental study about the improvement of the mechanical properties of a concrete cobble using recyclable additives

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