Sustainable use of waste in flexible pavement: A review

Gautam, Prabhat; Kalla, Pawan; Jethoo, Ajay Singh; Agrawal, Rahul Kumar; Singh, Harshwardhan

doi:10.1016/j.conbuildmat.2018.04.067

Cited by 125 publications

(47 citation statements)

References 65 publications

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“…P s � 0.1266(3.6 × activity) 3.47 , (6) activity � 0.2783(FS) 0.288 . (7) e identification and characterization of expansive soils are presented in numerous studies during the annals of history. In Table 1, the expansive soils have been classified based on swell tests, Atterberg limits, free swell ratio, dominant clay type, suction, and absorption capability.…”

Section: Unit Layermentioning

confidence: 99%

“…Among others, the main clay minerals in expansive soils include illite, kaolinite, and montmorillonite (further on referred to as Mt). Owing to the hydrophilic nature and high dispersivity of the clay minerals, they cause high risk to the civil engineering foundations, to landslides triggering [2], and to the road subgrades [3] especially before bituminous coating as soil improvement additives or cold mixtures [4][5][6][7]. For practical implications in engineering, the treatment of expansive soils is imperative.…”

Section: Introductionmentioning

confidence: 99%

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On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Jalal

Jamhiri

et al. 2020

Advances in Materials Science and Engineering

109

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Calcium-based stabilizer materials (CSMs) exhibit pozzolanic properties which improve the properties of clayey soils by hydration, cation exchange, flocculation, pozzolanic reaction, and carbonation. In this comprehensive review, comprising over past three decades from 1990 to 2019, a mechanistic literature of expansive soil stabilization by incorporating CSMs is presented by reviewing 183 published research articles. The advantages and disadvantages of CSMs as the ground stabilizing agent are succinctly presented, and the major outcomes of physicochemical effects on soil properties are discussed in detail. After blending with CSM, the main and interaction effects on soil properties with focus on chemical processes such as X-ray fluorescence, X-ray diffraction analyses, and microstructure interaction by using scanning electron microscopy and thermogravimetric analysis have been reviewed in light of findings of past researchers. This work will help geotechnical engineers to opt for suitable CSM in the field of geoenvironmental engineering in committing to sustainable construction of civil engineering structures over expansive soils.

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Section: Unit Layermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Jalal

Jamhiri

et al. 2020

Advances in Materials Science and Engineering

109

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“…The main purpose of this paper is to review the state of existing literature and identify the critical processes and stages for effective asset management and life-cycle assessment of road network projects towards overall cost, social and environmental sustainability. Researchers have performed individual extensive reviews of studies on the use of recycled materials (Anthonissen et al, 2016;Balaguera et al, 2018;Gautam et al, 2018) in road projects, attributes for life-cycle costs (Babashamsi et al, 2016), LCA as a project procurement and planning tool (Butt et al, 2015;AzariJafari et al, 2016), significance of traffic/transit load and patterns in the overall life-cycle impact of road networks (Inyim et al, 2016) and the social and policy concerns (Santos et al, 2010;Jiang et al, 2017). On the other hand, studies on quantifying/minimising the environmental burden, e.g., particulate matter pollutants (Pant and Harrison, 2013) and fuel consumed by the traffic (Rahman et al, 2017) were reviewed by other researchers.…”

Section: Figure 1 Schematic Of Processes In Infrastructure Design Andmentioning

confidence: 99%

Critical review and methodological issues in integrated life-cycle analysis on road networks

Hasan

Whyte

Jassmi

2019

Journal of Cleaner Production

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Life-cycle management of road network projects traditionally emphasise material production and construction stages, with less attention given to usage stage and functionality improvement. Increasingly there is a need to address: inconsistencies in cost attribute selection; adjusting for uncertainties and costs; clarifying system boundaries; data sources; functional units and regional or temporal applicability of life-cycle frameworks. The current study focuses on a critical literature review of life-cycle cost analysis (LCCA) and life-cycle assessment (LCA) research published in the last decade (post 2008) towards identification of research gaps. Accurately analysing all life-cycle stages, feedback loops, future cash and resource flows, and interlinking performance with overall sustainability can aid the decision-making process towards sustainable alternatives for constructing new, or rehabilitating existing roads. This review finds that the use of recycled materials, base/sub-base stabilisers and asphalt binder replacement has the potential of energy saving (≥ 34% or 3.1 TJ), mitigating landfill disposal issues, and greenhouse gas load reduction (≥ 34.5% CDE). Lack of real world LCCA-LCA application and stakeholder prejudice against recycled material usage are addressable by better stakeholder (decision-makers and road users) engagement via a social component. The proposed enhancements identified in this study can increase LCA/LCCA attraction to policy-makers, planners and users and ultimately ensure a more sustainable asset.

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“…Specimen preparation: all specimens were prepared using CP II-Z-32 cement, with dimensions: 10 cm in diameter and 20 cm in height. Before the incorporation of the recycled aggregates into the composition of the traces, it was verified the need to pre-wet them, since the recycled aggregates with high porosity alter the water amount in the mixtures, which can affect the concrete properties in the hardened state and also their hydration [16]. Nine cylindrical specimens were prepared for each composition: reference trace and five traces with 20, 40, 60, 80 and 100% replacement of the large aggregate by crushed and moistened CDW, totalizing 54 specimens.…”

Section: Methodsmentioning

confidence: 99%

“…Interlocking paving is considered a flexible paving that has several layers, the outer paving being made up of concrete pieces juxtaposed with each other and filled by a grout material [15]. On layers previously prepared, pre-molded concrete pieces, commonly called slabs, blocks, parallelepipeds, pavers or drainage pavements, are placed: first on a sand layer, followed by the base, sub-base, and subgrade [16]. In addition, they must have adequate dimensions, compressive strength, abrasion resistance, water absorption, and other characteristics in accordance with the appropriate standards.…”

Section: Introductionmentioning

confidence: 99%

Construction and demolition waste in concrete: property of pre-molded parts for paving

2019

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Construction and demolition waste (CDW) production is a growing factor on a global scale and its incorrect disposal becomes an increasingly common problem in cities. It is estimated to represent, on average, 50% of the urban solid waste mass in the world. In this sense, an alternative to the destination is their reuse. In this work, the properties of interlocking concrete pieces for paving with the CDW in substitution to large aggregates were analyzed. The substitution occurred in fractions from 20 to 100 wt% of CDW in cylindrical test specimens to find the ideal substitution content, so that to prepare pre-molded concrete blocks. The piece properties obtained were analyzed according to Brazilian standards for compressive strength and water absorption. Therefore, the influence of the residue incorporation in the pieces, from the technical viewpoint, was verified. The sample that presented the best performance had a substitution of 20% of the natural aggregate by crushed CDW.

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Sustainable use of waste in flexible pavement: A review

Cited by 125 publications

References 65 publications

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

On the Recent Trends in Expansive Soil Stabilization Using Calcium‐Based Stabilizer Materials (CSMs): A Comprehensive Review

Critical review and methodological issues in integrated life-cycle analysis on road networks

Construction and demolition waste in concrete: property of pre-molded parts for paving

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