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Topic Review
3D Printing Building Envelope Prefabricated
The Fourth Industrial Revolution represents the beginning of a profound change for the building sector. In the last decade, the perspective of shapes, materials, and construction techniques is evolving fast due to the additive manufacturing technology. On the other hand, even if the technology is growing fast and several 3D printed buildings are being developed worldwide, the potential of concrete 3D printing in building prefabrication remains unexplored. Consequently, the application of new digital fabrication technologies in the construction industry requires a redesign of the construction process and its components. This paper proposes a novel conception, design, and prototyping of a precast building envelope to be prefabricated with extrusion-based 3D concrete printing (3DCP). 
  • 1.1K
  • 20 Aug 2021
Topic Review
3D Printing in Construction
Using 3D printing in the construction industry is gaining attention as a high-potential means of digitalization and automation of the construction process. Digital fabrication in construction would help reduce the environmental and economic impact of the building industry, allowing to realize efficient and sustainable structures for the future. Various types of large-scale 3D printing techniques and construction materials can be used. 
  • 480
  • 02 Dec 2022
Topic Review
3D Printing in the Building Industry
The technology of additive manufacturing, especially 3D concrete printing (3DCP), has been adopted in the construction industry as a viable alternative to traditional construction methods. Although the technology offers a wide variety of structural, economic, and environmental benefits, it is still restricted in use due to certain limitations that are still under research.
  • 330
  • 14 Apr 2023
Topic Review
3D-Printable Concrete for Energy-Efficient Buildings
Rapid construction with an energy-efficient approach is a major challenge in the present construction industry. Cement, a carbon-intensive material, is mainly used in the construction industry and hence increases the sector’s carbon footprint on the environment. Raw material characteristics play an important role in defining the physical, chemical, and mechanical properties of 3D concrete. Raw material characterization includes finding particle size distribution, specific gravity, density, and morphology.
  • 265
  • 31 May 2023
Topic Review
A Multi-Level Optimization Approach
Researchers optimizes Chlorine Booster Stations (CBS) location on a network with two main objectives; (1) to deliver minimal Free Residual Chlorine (FRC) throughout all demand nodes according to country regulations, and (2) to reduce day chlorine mass concentration supplied in the system by applying an hour time pattern in CBS, consequently associated economic, energy and environmental impacts complying with regulatory standards
  • 403
  • 28 Oct 2021
Topic Review
A Safe Infrastructure for Micromobility
Major cities in Europe have seen a significant increase in micromobility infrastructure, including cycling infrastructure, with 42 European Metropolitan cities implementing 1421.54 km of cycling infrastructure in a year. However, the design principles for bikeways primarily rely on conventional road design for bicycles and lack consistency in accommodating emerging powered micromobility devices like e-scooters.
  • 217
  • 31 Jul 2023
Topic Review
Additive Manufacturing Technology in Railway Infrastructure Systems
Additive manufacturing technologies, well known as three-dimensional printing (3DP) technologies, have been applied in many industrial fields, including aerospace, automobiles, shipbuilding, civil engineering and nuclear power. However, despite the high material utilization and the ability to rapidly construct complex shaped structures of 3D printing technologies, the application of additive manufacturing technologies in railway track infrastructure is still at the exploratory stage. 
  • 1.8K
  • 07 Jan 2022
Topic Review
Adhesion in Bitumen/Aggregate System
The five main theories describing the interaction mechanisms in the bitumen/aggregate system was conducted: theory of weak boundary layers, mechanical theory, electrostatic theory, chemical bonding theory, and thermodynamic theory (adsorption theory). The adhesion assessment methods in the bitumen/aggregate system are described, which can be divided into three main groups: determination of adhesion forces for bitumen with different materials, determination of bitumen resistance to the exfoliating action of water with different materials, and determination of adhesion as a fundamental value (contact angle measurements, interfacial fracture energy, adsorption capacity and others).
  • 1.5K
  • 04 Jan 2023
Topic Review
Aerobic Granular Sludge–Membrane BioReactor (AGS–MBR)
Membrane-fouling represents a major drawback hampering the wider application of membrane bioreactor (MBR) technology. Fouling can be mitigated by applying aerobic granular sludge technology, a novel kind of biofilm technology characterized by high settleability, strong microbial structure, high resilience to toxic/recalcitrant compounds of industrial wastewater, and the possibility to simultaneously remove organic matter and nutrients. Different schemes can be foreseen for the AGS–MBR process. However, an updated literature review reveals that in the AGS–MBR process, granule breakage represents a critical problem in all configurations, which often causes an increase of pore-blocking.
  • 992
  • 07 Apr 2021
Topic Review
AI Applications for Virtual Sensing of Underground Utilities
Accurately identifying the location and depth of buried utility assets became a considerable challenge in the construction industry, for which accidental strikes can cause important economic losses and safety concerns. While the collection of as-built utility locations is becoming more accurate, there still exists an important need to be capable of accurately detecting buried utilities in order to eliminate risks associated with digging. With advances in artificial intelligence (AI), an opportunity arose in conducting virtual sensing of buried utilities by combining robotics (e.g., drones), knowledge, and logic.
  • 400
  • 18 May 2023
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