A comprehensive review on fresh and rheological properties of 3D printable cementitious composites

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 91, P. 109719 - 109719

Published: May 23, 2024

The undeniable potential of 3D printing technology to revolutionize global manufacturing processes has led the emergence advanced, digitalized, and fully automated construction techniques. Despite growing interest in this technology, a significant challenge still exists development cement-based material due complex interaction various fresh rheological property parameters. This review comprehensively explores fundamental properties (flowability, buildability, extrudability, pumpability open time) (static yield stress, dynamic plastic viscosity) essential for formulation printable cementitious composites, with without fibres. results obtained from different rheometers successful printed mixes are also summarised, highlighting variation recorded values. Moreover, thoroughly investigates factors affecting both properties, such as type supplementary materials, fibre dosage, superplasticizer, viscosity-modifying admixture. It identifies clear impact these parameters further recommends optimal range some flowability value between 160-200 mm, achieve desirable printability composites. Overall, offers valuable insights developing new mix compositions suitable serves useful tool establishing guidelines composite which currently lacking but crucial research, development, application field.

Language: Английский

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Formwork Engineering for Sustainable Concrete Construction

CivilEng, Journal Year: 2023, Volume and Issue: 4(4), P. 1098 - 1120

Published: Oct. 17, 2023

This study provides a comprehensive review of the engineering challenges formwork in concrete construction. The paper investigates different systems, their design based on form pressure, and difficulties stripping. Alternative binders are gaining more interest by opening new opportunities for sustainable materials impact pressure setting is also investigated this paper. discussion involves several such as sustainability, safety, economy, while it explores previous case studies, discusses future trends design. findings pinpoint that choosing an appropriate system depends significantly project-specific constraints development innovative technologies presents significant benefits but challenges, including need training regulation. Current use show promising possibilities integration digital ‘smart’ systems. Continued research within field has possibility to explore technologies, which will contribute implementation effective practices

Language: Английский

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On the use of 3D printing to enhance the thermal performance of building envelope – A review

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 95, P. 110284 - 110284

Published: July 26, 2024

3D printing is constantly evolving, enabling new innovative manufacturing applications. Extensive research in biomimetics underscores the significant impact of geometric configurations on thermal performance building envelopes. However, a comprehensive literature review efficacy printed components remains unexplored. This study, after offering an overview printing, its development and application construction sector, focuses potential terms optimization envelope, through use complex shapes cutting-edge materials. The ends with examination recent challenges faced by perspectives for future development, opening doors to various opportunities. Overall, 696 publications from 2006 2024 were selected, 160 them deemed suitable. Four databases used searches: Science Direct, Scopus, Springer Link, Google Scholar. main findings highlighted that while holds promise enhancing industry, it has yet reach full potential. revealed variety approaches pursued optimize components, including topology, material selection, sustainability considerations. Among examined thermophysical properties, lowest recorded conductivity, 0.04 W/mK, was achieved using wheat straw-based composite Similarly, minimum transmittance value wall found be 0.15 W/m2K.

Language: Английский

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An overview of traditional and advanced methods to detect part defects in additive manufacturing processes

Journal of Intelligent Manufacturing, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 2, 2024

Language: Английский

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Eco-efficient ultra-high-performance concrete formulation utilizing electric arc furnace slag and recycled glass powder–advanced analytics and lifecycle perspectives

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 32, P. 362 - 377

Published: July 26, 2024

Ultra-high-performance concrete (UHPC) is a promising material for sustainable and resource-efficient construction, but its high Portland Cement content poses environmental challenges. This research proposes an optimized UHPC blend that significantly reduces the dosage by incorporating industrial waste materials [i.e., Recycled Glass Powder (RGP) Electric Arc Furnace Slag (EAFS)]. The integration of these in formulation addresses critical management issues aligns with construction practices. Utilizing tri-variable Design Experiments methodology conjunction Andreasen & Andersen theory, aims to reduce without compromising compressive strength rheological behavior. incorporates RGP EAFS, achieving threshold established ACI-239 (150 MPa) while maintaining self-compacting performance fresh state. mixture features low cement (621 kg/m³) silica fume (100 content. Life cycle assessments (LCA) were conducted examine efficiency blend. A comparative LCA demonstrates developed this study surpasses control higher contents comparable mechanical properties. Notably, improvement highlighted nearly 20% reduction CO2 equivalent emissions. scientific significance lies demonstration viable pathway producing reduced impact, contributing advancement building practices, offering practical solution issues.

Language: Английский

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Advancements in Lightweight Artificial Aggregates: Typologies, Compositions, Applications, and Prospects for the Future

Sustainability, Journal Year: 2024, Volume and Issue: 16(21), P. 9329 - 9329

Published: Oct. 27, 2024

Currently, the environment and its natural resources face many issues related to depletion of resources, in addition increase environmental pollution resulting from uncontrolled waste disposal. Therefore, it is crucial identify practical effective ways utilize these wastes, such as transforming them into environmentally friendly concrete. Artificial lightweight aggregates (ALWAs) are gaining interest because their shift focus aggregates. Researchers have developed numerous ALWAs eliminate need for This article explores diverse applications across different industries. currently research phase due various limitations compared availability that form more durable solutions. However, researchers discovered certain artificial prioritize weight over strength, allowing use like pavements. We thoroughly studied discussed this found fly ash construction most sources primary material ALWAs. production also presents challenges terms processing optimization. article’s case study reveals ALWAs, consisting 80% ash, 5% blast-furnace slag, only 15% cement, can yield a sustainable solution. In single- double-step palletization, aggregate proved be less harmful. Additionally, has reduced carbon footprint recycling materials, including derived marble sludge, ground granulated slag. Despite limited mechanical exhibit superior performance, making suitable high-rise buildings landscapes. composition plays key role determining application-based properties discusses sustainability considerations, well future trends LWA field. Simultaneously, reduce promote construction. researches associated with

Language: Английский

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Microstructure and performance of recycled wind turbine blade based 3D printed concrete

Cleaner Waste Systems, Journal Year: 2025, Volume and Issue: unknown, P. 100206 - 100206

Published: Jan. 1, 2025

Language: Английский

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3D-Printing of a basic housing unit prototype using earthen-based matrices stabilized with rice husk fibers

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112111 - 112111

Published: Feb. 1, 2025

Language: Английский

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Modular Construction in the Digital Age: A Systematic Review on Smart and Sustainable Innovations

Buildings, Journal Year: 2025, Volume and Issue: 15(5), P. 765 - 765

Published: Feb. 26, 2025

Modular construction provides numerous benefits over traditional methods, especially when combined with digital technologies, offering a faster, safer, leaner, and more sustainable environment. This literature review follows the PRISMA method to assess recent advancements in digital-oriented modular towards climate-neutral built environment, identifying research trends gaps based on three pillars: tools, building solutions, environmental sustainability. examines integration of technologies extending analysis circular bioclimatic efforts, renewable energy sources, passive design strategies. While most articles focus BIM uses, there is an increasing emphasis IoT applications that leverage real-time data achieve sustainability goals. However, no full-scale automated Digital Twin was found this context. Additionally, Building Energy Modelling (BEM) Life Cycle Assessment (LCA) tools are frequently discussed, reflecting push for climate-friendly housing. Despite interest parametric generative design, machine learning artificial intelligence strategies remains underexplored. Only few papers acknowledged reaching nZEB requirements despite great solutions sources contribute goal. material circularity has yet its full potential construction. Moreover, some off-grid buildings, although further should be undertaken analyse feasibility communities. Furthermore, findings highlight digitalisation enhance efficiency ensure within Architecture, Engineering, Construction (AEC) sector.

Language: Английский

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Investigation of Mechanical Properties and Microstructural Characteristics of Earth-Based Pavements Stabilised with Various Bio-Based Binders

Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 864 - 864

Published: March 24, 2025

For centuries, earthen materials have regained popularity because of the high carbon emissions caused by construction sector. Although earth-based possess superior properties, such as recyclability, easy accessibility, affordability, and thermal conductivity, they are not without drawbacks. They are, for instance, relatively weak sensitive to water, their physical chemical properties can vary considerably depending on source from which obtained. Stabilisation is often used overcome these In this study, natural were stabilised with biopolymers organic origin, alginate, Arabic gum, xanthan locust bean preserve properties. To produce samples, earth material in road sub-base layer was mixed kaolin clay silica sand, mixtures prepared substituting biopolymer at a ratio 0.1%. After determining fresh unit volume weights, spreading diameters (flow table test), penetration depths (fall cone air content mixtures, flexural compressive strengths cured specimens measured. addition, scanning electron microscopy (SEM) X-ray diffraction (XRD) analyses performed determine microstructural characteristics. According 28-day strength results, mix gum found be almost twice strong other mixes. It has been concluded that biopolymer-stabilised fill buildings where required, or paving low-traffic roads.

Language: Английский

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