A case study on maintenance of bituminous concrete pavement considering life cycle cost analysis and carbon footprint estimation

Krishna, U. Siva Rama; Kumar, Ch. Naga Satish

doi:10.1080/15623599.2020.1742629

Cited by 22 publications

(10 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is a method for evaluating environmental implications at various activities of a project's life cycle. The carbon footprint computation throughout its design life is depicted in the Figure 2.The formula term as (2) for calculating greenhouse gas emissions in terms of carbon dioxide equivalent (CO2e) is adapted from a research paper [15] KgCO2e= (Amount of gas in kg) * (GWP of the gas)…”

Section: Computation Of Life Cycle Environmental Costmentioning

confidence: 99%

“…To compute the LCC for both pavements, reference prices as per ministry of road transport& highways (MORTH) specifications from Haryana state in India as shown in Table 1 is used. The NPV for pavements is calculated in Indian rupees (₹) using a discount rate of 12 % and an inflation rate of 5%, according to a recent study [15].…”

Section: Input Data For Computation Of Life Cycle Costmentioning

confidence: 99%

“…The NHAI provides a layer with defined properties, and the job mix formula is drawn from the kandhal book [19] as shown in Table 2 to estimate the material necessary for both pavements. For material's movement, distance between sources to destination as shown in Table 3 is taken from real geographical location and recent study [15] .…”

Section: Input Data For Computing Environmental Costmentioning

confidence: 99%

See 2 more Smart Citations

Perpetual Flexible Pavement vs. Rigid Pavement: An Economic and Environmental Cost Comparison

Kumar

Sharma

2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

India needs roads that can handle a large volume of traffic and have a long service life due to the scarcity of natural resources and their rising cost. Over the last decade, type. As a result, the notion of a perpetual flexible pavement with a life of more than 50 years and great structural capacity has emerged. Perpetual flexible pavement has a direct competition with cement concrete-based rigid pavement. The comparison of life cycle cost (LCC) and life cycle environmental cost (LCEC) is an analytical method for determining the long-term viability of any pavement. This paper examined the overall sustainability of each pavement by comparing (1) the life cycle cost with the help of net present value (NPV) method and (2) life cycle environmental cost considering greenhouse gas emissions from various activities in construction and maintenance of pavements over a 50-year analysis period. The cross-sections of the Delhi-Mumbai expressway with perpetual flexible pavement and the Mumbai-Pune expressway with conventional rigid pavement, both of which have been designed for a long service life and a good structural capability were chosen for the investigation as a case study. The findings of the present study reveal that the per kilometre life cycle cost of perpetual flexible pavement is 2.12 lakh rupee less than the rigid pavement. Also, perpetual pavement emits 4.5 times less greenhouse gases than rigid pavement over their design life. In comparison to a rigid pavement during a 50-year design life, the study concludes that perpetual flexible pavement is not only economically effective but also environmentally sustainable

show abstract

Section: Computation Of Life Cycle Environmental Costmentioning

confidence: 99%

Section: Input Data For Computation Of Life Cycle Costmentioning

confidence: 99%

Section: Input Data For Computing Environmental Costmentioning

confidence: 99%

See 1 more Smart Citation

Perpetual Flexible Pavement vs. Rigid Pavement: An Economic and Environmental Cost Comparison

Kumar

Sharma

2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…With the development of pavement materials and preventive maintenance techniques [1][2][3][4], the application of ultra-thin overlays and functional pavers has become increasingly widespread [5][6][7]. However, it is difficult to ensure the interlayer bonding performance due to differences in material properties and relatively weakened mechanical compatibility between the upper and lower cladding layers, as well as surface contamination of the lower cladding layer caused by milling [8,9].…”

Section: Introductionmentioning

confidence: 99%

Investigation on One-Component Waterborne Epoxy Emulsified Asphalt (OWEEA) Used as Bonding Material

Wu,

Song

et al. 2024

Buildings

View full text Add to dashboard Cite

Due to the issue of weakened adhesion between ultra-thin surface overlays, higher demands have been placed on bonding layer materials in practical engineering. This study proposed a method for preparing a one-component waterborne epoxy resin-modified emulsified asphalt (OWEEA) and explored the impact of different ratios on its performance. The basic physical and mechanical properties of the OWEEA, as well as its rheological characteristics, were investigated through penetration tests, softening point tests, ductility tests, tensile tests, and dynamic shear rheological tests. Pull-out tests and shear tests considering different substrates were used to evaluate the interfacial bonding performance of the OWEEA as a bonding layer material, and comparative analysis was conducted with conventional waterborne epoxy resin-modified emulsified asphalt. Based on microscopic testing and analysis, the laws of physical and chemical changes and secondary curing characteristics of the one-component waterborne epoxy emulsion (OWE) during the modification of emulsified asphalt were elucidated. The results indicated that the OWE prepared in this study significantly enhanced the tensile strength and bonding properties of emulsified asphalt. The results showed that the tensile strength, bonding strength, and shear strength of the OWEEA increased from 0.15 MPa, 0.36 MPa, and 0.35 MPa to 0.55 MPa, 1.29 MPa, and 2.01 MPa, respectively. The modification effect of the OWEEA surpassed that of conventional waterborne epoxy emulsion, albeit with a certain reduction in elongation at break, reduced from 1551% to 98%. Furthermore, the OWEEA showed a distinct secondary curing phenomenon. The results of the SEM tests showed that high temperatures accelerated the formation of the crosslinked network structure of OWE, promoting its integration with emulsified asphalt and resulting in a more uniform and dense structure, significantly enhancing bonding strength in a short period. In the actual road construction process, laying hot-mix asphalt mixtures on the bonding layer can further enhance its curing effect and improve its bonding performance.

show abstract

“…Cement replacement in concrete to produce sustainable concrete has been extensively researched in previous studies to investigate the material properties, mechanical characteristics and sustainable benefits (Shwekat and Wu, 2018; Nath et al , 2018; Dirgantara et al , 2017; Soutsos et al , 2016; Diaz-Loya et al , 2011; O'Brien et al , 2009). Most of the studies related to sustainable concrete have considered GHG emissions with limited concentration on the overall environmental impacts including the effect of non-GHG emissions (Bajpai et al , 2020; Siva Rama Krishna and Naga Satish Kumar, 2020; Zhang et al , 2017). Apart from the GHG emissions such as CO 2 , N 2 O and CH 4 , it is important to consider non-GHG emissions such as NO x , CO, PM 10 as well when considering life cycle environmental impacts.…”

Section: Introductionmentioning

confidence: 99%

Environmental impact assessments during construction stage at different geographic levels – a cradle-to-gate analysis of using sustainable concrete materials

Sandanayake

Kumanayake

Peiris

2021

ECAM

View full text Add to dashboard Cite

PurposeThe main objective of the study is to present a systematic process that can assess, compare and benchmark different geographical levels environmental impacts of using sustainable materials at construction stage.Design/methodology/approachCurrent study presents a methodological framework to evaluate environmental impacts at the construction stage of using sustainable materials through a cradle-to-gate process based quantitative LCA study. Scenario analyses and an optimisation analysis using Monte-Carlo simulation are conducted to investigate the influence of external factors on environmental impacts at different geographical regions.FindingsMaterials account for 98% of greenhouse gas (GHG) emissions. Carbon monoxide (CO) and non-methane volatile organic compounds (NMVOC) record significant non-GHG emissions. Particulate matter (PM10) emissions are significant from transportation and equipment. High significance of global warming potential (GWP) (38.98%) and photochemical oxidation formation potential (POFP) (34.49%) at global level and eutrophication potential (EP) (52.83%) and human toxicity potential (HTP) (25.30%) impacts at local level were observed. Shortest transportation distance reduces 14.91% PM10 and 4.69% nitrous oxide (NOx) emissions. Inventory variations have major influence on POFP impact at global level. Local level impacts are not significantly affected by inventory variations. Optimisation analysis indicated, high fly ash in concrete increase local level carbon emissions, if OPC concrete transportation distance is less than 23.7 km.Research limitations/implicationsUse of case-specific information for validation may lack generalisation. However, methodology can be used for future sustainable decision making over using sustainable materials in construction.Originality/valueThe study estimate environmental impacts at different geographical levels when sustainable materials are used for construction.

show abstract

A case study on maintenance of bituminous concrete pavement considering life cycle cost analysis and carbon footprint estimation

Cited by 22 publications

References 12 publications

Perpetual Flexible Pavement vs. Rigid Pavement: An Economic and Environmental Cost Comparison

Perpetual Flexible Pavement vs. Rigid Pavement: An Economic and Environmental Cost Comparison

Investigation on One-Component Waterborne Epoxy Emulsified Asphalt (OWEEA) Used as Bonding Material

Environmental impact assessments during construction stage at different geographic levels – a cradle-to-gate analysis of using sustainable concrete materials

Contact Info

Product

Resources

About