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Topic Review
Predicting Pavement Condition Index Using Fuzzy Logic Technique
The fuzzy logic technique is one of the effective approaches for evaluating flexible and rigid pavement distress. The process of classifying pavement distress is usually performed by visual inspection of the pavement surface or using data collected by automated distress measurement equipment. Fuzzy mathematics provides a convenient tool for incorporating subjective analysis, uncertainty in pavement condition index, and maintenance-needs assessment, and can greatly improve consistency and reduce subjectivity in this process.
  • 1.1K
  • 14 Jul 2022
Topic Review
Nature-Based Solutions in Urban Landscapes
Urban landscapes are under great pressure and particularly vulnerable, due to climate change, population growth and economic development. Despite the growing understanding that Nature-Based Solutions (NBS) represent efficient solutions to facilitate adaptation to climate change and increase cities’ resilience, their wide-scale adoption is still limited. There is a need to include NBS in urban governance and planning agendas through policy instruments, such as plan/legislative, economic and information instruments. However, there is a lack of studies that assess such policy instruments and, through the use of specific examples, how they can foster NBS adoption.
  • 1.1K
  • 31 Aug 2021
Topic Review
Sense of Gain and Rural Infrastructures
Rural infrastructure is not only the foundation for the development of various rural undertakings but also an integral part of the rural economic system. Its construction and operation are closely related to farmers’ quality of life. However, owing to the urban–rural dual structure in many countries in the world, there is still a big gap between the level of rural infrastructure and that of cities, which affects the interests of farmers and restricts the sustainable development of rural areas. The sense of gain can reveal shortcomings in the rural infrastructure from the perspective of farmers, helping to suggest rapid and accurate improvements according to the farmers’ feelings.
  • 1.1K
  • 24 May 2022
Topic Review
Smart Pavement Data with Decision Support Systems
Nowadays, pavement management systems (PMS) are mainly based on monitoring processes that have been established for a long time, and strongly depend on acquired experience. However, with the emergence of smart technologies, such as internet of things and artificial intelligence, PMS could be improved by applying these new smart technologies to their decision support systems, not just by updating their data collection methodologies, but also their data analysis tools. The application of these smart technologies to the field of pavement monitoring and condition evaluation will undoubtedly contribute to more efficient, less costly, safer, and environmentally friendly methodologies.
  • 1.1K
  • 08 Dec 2021
Topic Review
Phytoremediation of Domestic Wastewater
A circular economy (CE) based strategy is essential to progress toward Sustainable Development Goals (SDG). CE is centered on the conversion of waste into meaningful products and resource efficiency with the objective of promoting resource reuse. This study presents the potential of CE approaches in the phytoremediation of wastewater and energy recovery using hydroponic tanks. The integration of phytoremediation with bioenergy, construction and lifespan of hydroponic tanks in phytoremediation of wastewater, selection of aquatic plants, and the expected challenges in the implementation of CE in phytoremediation of wastewater were discussed. It further elucidates a comprehensive circularity assessment methodology that would enable and support a strategic CE framework for phytoremediation techniques in wastewater treatment. Additionally, a complete view of the feedstock conversion process into valuable end products was discussed in this CE strategic study. The findings obtained provided insights into the relative growth rate of the plant-based biomass harvested from the phytoremediation of domestic wastewater. It also provided information on the economic and technical feasibility of wastewater phytoremediation using hydroponic tanks for simultaneous recovery of treated water and plants’ biomass to enable large-scale implementation. Furthermore, optimizing resource recovery and bioenergy generation, developing new approaches and solutions, and improving process stability would help encourage and enhance the adoption of the CE framework in the phytoremediation of domestic wastewater.
  • 1.1K
  • 30 Jun 2022
Topic Review
Guidelines for Measuring Particulate Matter at Construction Sites
PM is a set of air pollutants consisting of solid or liquid particles. These particles are suspended in the atmosphere, but they can also be sedimented on surfaces. Despite a number of differences, PM is mainly classified by its aerodynamic diameter into three groups: (1) fine or breathable particles (PM2.5) with aerodynamic diameter up to 2.5 µm, (2) coarse or inhalable particles (PM10) with an aerodynamic diameter up to 10 µm, and (3) total suspended particles (TSP) that have a wide particle size range, typically with an equivalent aerodynamic cutting diameter of 100 µm.
  • 1.1K
  • 19 Apr 2022
Topic Review
Catchment Resilience
Catchment resilience can be used as a unifying concept to explore the role of latent conditions that are triggered by hydro-hazards and their impact on exposed people or assets. Catchment resilience requires acknowledging the interactions between natural, technical, and social systems within a catchment, and considering feedbacks between exposure, vulnerability, and resilience of the catchment.
  • 1.1K
  • 12 Mar 2021
Topic Review
Sustainable Development for Oil and Gas Infrastructure
The oil and gas (O&G) sector is a critical energy infrastructure to a Nation’s welfare. As developed as the O&G industry may seem, its aging infrastructure gradually shows numerous challenges to keep up with the growing energy demand, increasing operation costs, and environmental concerns. A robust O&G infrastructure that is risk-free, reliable, and resilient towards expected or unexpected threats can offer an uninterrupted supply of O&G to downstream stakeholders, competitive prices to customers, and better environmental footprints. With the shift towards renewable energy, the notion of sustainable development should be firmly embedded in O&G infrastructure and operations to facilitate the smooth transition towards future renewable energy generation. 
  • 1.1K
  • 17 Apr 2023
Topic Review
Fugitive Dust
Fugitive dust is a serious threat to unpaved road users from a safety and health point of view. Dust suppressing materials or dust suppressants are often employed to lower the fugitive dust. Currently, many dust suppressants are commercially available and are being developed for various applications. 
  • 1.1K
  • 09 Mar 2021
Topic Review
Large-Scale Extrusion-Based 3D Concrete Printing Extruder System Design
Extrusion-based 3D concrete printing (E3DCP) has been appreciated by academia and industry as the most plausible candidate for prospective concrete constructions.
  • 1.1K
  • 12 Apr 2023
Topic Review
Waste as Cement Replacement in Foamed Concrete
Foamed concrete is a lightweight construction material that has gained popularity due to its excellent thermal and acoustic insulation properties. Foamed concrete production involves using cement as a binding agent, which results in a high carbon footprint. In response to sustainable development goals (SDG), there has been a growing interest in exploring alternative materials that can replace cement to improve energy efficiency, climate change, resource efficiency, and overall improvement of foamed concrete properties.
  • 1.1K
  • 22 Mar 2023
Topic Review
Elastic Beam-like Model of Multi-Storey Framed Buildings
Modern computational techniques have greatly influenced the numerical analyses of structures, not only in terms of calculation speed, but also in terms of procedural approach. In particular, great importance has been given to structural modelling, that is, the process by which a structure and the actions to which it is subjected are reduced to a simplified scheme. The use of a simplified calculation scheme is necessary since the structures are, in general, considerably complex physical systems whose behaviour is influenced by a large number of variables.
  • 1.1K
  • 23 Sep 2022
Topic Review
Urban-Scale Physics-Based Building Energy Modeling
Urban building energy modeling (UBEM) is a practical approach in large-scale building energy modeling for stakeholders in the energy industry to predict energy use in the building sector under different design and retrofit scenarios. UBEM is a relatively new large-scale building energy modeling (BEM) approach which raises different challenges and requires more in-depth study to facilitate its application. 
  • 1.1K
  • 23 Nov 2022
Topic Review
Urban Resilience Assessment
This paper aims to provide a better understanding of the state of knowledge on urban resilience assessment through mapping the knowledge domain and highlighting emerging trends during different periods. The objects of study were 420 papers published in the Web of Science from 1998 to 2020. Science mapping was done using VOSviewer and CiteSpace, two widely known software tools for bibliometrics analysis and scientometric visualization. The results show that research published on urban resilience assessment was very limited and fragmented until 2009, and the focus has mainly been on risk mitigation and vulnerability assessment. The intellectual base grew between 2010 and 2014, when a paradigm shift from approaches based on robustness and reliability toward more adaptation-oriented approaches occurred. Finally, the annual publication trends have grown rapidly over the past five years and there has been more emphasis on climate change adaptation and flood resilience.
  • 1.1K
  • 27 Oct 2020
Topic Review
Recycled Waste Materials and Technologies in Asphalt Pavements
Given the prevailing concerns about greenhouse gas emissions, global warming, and the growing demand for renewable resources, the pavement industry, among others, is actively engaged in researching and exploring low-carbon materials and technologies. Despite the growing interest in low-carbon asphalt pavement, there is still a significant knowledge gap regarding the use of various waste materials and technologies to achieve this goal. 
  • 1.1K
  • 19 Oct 2023
Topic Review
Sustainable Approaches to Polymer-Modified Asphalt Binder
Due to periodic variations in temperature and heavy traffic loading, hot-mix asphalt (HMA) pavements undergo considerable distress during their service life. The rheological properties of asphalt binder, when subjected to complex physical and chemical processes, make it stiff and sometimes brittle, which ultimately plays a huge part in pavement deterioration. This phenomenon is commonly known as asphalt aging. Incorporating polymer modifiers with virgin asphalt can work as an effective means to change the binder properties and alleviate the issues related to asphalt aging. Different types of polymers, including elastomers, plastomers, and reactive polymers, can mixed in different combinations with the virgin asphalt to create polymer-modified binders (PMBs). In general, polymers are typically added to the virgin asphalt binder in PMB manufacturing at weight percentages ranging from 3% to 7%.
  • 1.1K
  • 28 Aug 2023
Topic Review
Relationship between Occupants’ Thermal Behavior and Energy Consumption
Despite an increased awareness about energy conservation, the energy consumed for water heating has increased by 7% from 2008 (17%) to 2018 (24%) in Hong Kong.
  • 1.1K
  • 02 Jul 2023
Topic Review
Partially Substitutions of Silica Fume for Sustainable Concrete
Self-compacting concrete (SCC) uses a lot of natural resources, much like regular concrete, which results in unsustainable construction. Slump flow, slump T50, L-box, and V-funnel tests were used to investigate fresh SCC properties, such as filling and passing capabilities. Mechanical properties were examined using compressive, tensile, and flexure strength, while the durability characteristics of SCC were examined through water absorption, porosity, sorptivity, and chloride resistance. The internal structure of SCC, with and without SF, is reviewed through scan electronic microscopy (SEM). Silica fume (SF) lacked the filling and passing ability of SCC, but is still within the limit defined by the technical specification for SCC. Improvements in SCC’s strength and durability were also seen; however, greater doses had a negative impact on these attributes due to an absence of flowability. Researchers recommended the ideal SF dosage ranges from 10 to 15% by volume of cement. 
  • 1.1K
  • 12 Oct 2022
Topic Review
Morphological Characteristic Evaluation of Road Aggregates
The sustainable performance of asphalt pavement depends on the quality and mix design of road aggregates. Identifying aggregate morphology and size is a prerequisite step for material design and numerical modeling of asphalt mixtures.
  • 1.1K
  • 31 Oct 2022
Topic Review
Earthquake Reconnaissance Data
Earthquakes are one of the most catastrophic natural phenomena. After an earthquake, earthquake reconnaissance enables effective recovery by collecting data on building damage and other impacts. This paper aims to identify state-of-the-art data sources for building damage assessment and provide guidance for more efficient data collection. We have reviewed 39 articles that indicate the sources used by different authors to collect data related to damage and post-disaster recovery progress after earthquakes between 2014 and 2021. The current data collection methods have been grouped into seven categories: fieldwork or ground surveys, omnidirectional imagery (OD), terrestrial laser scanning (TLS), remote sensing (RS), crowdsourcing platforms, social media (SM) and closed-circuit television videos (CCTV). The selection of a particular data source or collection technique for earthquake reconnaissance includes different criteria depending on what questions are to be answered by these data. We conclude that modern reconnaissance missions cannot rely on a single data source. Different data sources should complement each other, validate collected data or systematically quantify the damage. The recent increase in the number of crowdsourcing and SM platforms used to source earthquake reconnaissance data demonstrates that this is likely to become an increasingly important data source.
  • 1.1K
  • 28 Mar 2022
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