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Applications of High-Performance Concrete in Construction

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (20 August 2024) | Viewed by 1027

Special Issue Editor


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Guest Editor
Singapore Centre for 3D Printing, School of Mechanical & Aerospace Engineering, Nanyang Technological University, Singapore City, Singapore
Interests: 3D printing; sustainable construction; rheology; cementitious materials; functionally graded materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the ever-evolving landscape of construction materials, high-performance concrete (HPC) has emerged as a versatile and influential player. It encompasses variants like high-strength concrete and light-weight concrete, offering a range of options for structural applications. These concrete types are known for their strength and durability, addressing the critical aspect of structural integrity.

Sustainability concerns have spurred significant progress in HPC, aligning it with the principles of green construction materials. Reinforcements, particularly fiber-reinforced concrete, have contributed to enhanced resilience and longevity. The advent of self-consolidating concrete (SCC) has also streamlined construction processes for increased efficiency.

Moreover, the integration of HPC with 3D printing technology has opened up new avenues for material innovation and construction methods. The addition of this innovative tool has changed the conventional construction process into a more sustainable one. In recent years, there has also been significant growth in the amount of literature on the technical aspects of this technology. This combination offers the potential for intricate and customized structures, revolutionizing the way we approach construction. Technical aspects such as its printing parameters, rheology, testing methods, fresh state properties and mechanical properties have been evaluated to ensure that the adoption of the technology can produce structurally safe element for use.

This Special Issue of Applied Sciences aims to explore the diverse facets of HPC and related variants, showcasing their pivotal role in construction. We invite researchers, engineers, and practitioners to contribute their insights and experiences in the field of high-performance concrete materials. Together, we work towards a more sustainable, resilient, and innovative built environment.

Dr. Daniel Yiwei Tay
Guest Editor

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Keywords

  • high-performance concrete
  • 3D printing
  • high-strength concrete
  • light-weight concrete
  • structural integrity
  • sustainability
  • reinforcements
  • fiber-reinforced concrete
  • self-consolidating concrete (SCC)
  • seismic resistance

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Published Papers (1 paper)

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Research

17 pages, 7988 KiB  
Article
Sustainable Support Material for Overhang Printing in 3D Concrete Printing Technology
by Guan Heng Andrew Ting, Yi Wei Daniel Tay, Tan Kai Noel Quah, Ming Jen Tan and Teck Neng Wong
Appl. Sci. 2024, 14(17), 7800; https://doi.org/10.3390/app14177800 - 3 Sep 2024
Viewed by 668
Abstract
The advantage of 3DCP technologies is the ability to fabricate free-form structures. However, printing openings in concrete structures are limited by the presence of overhanging sections. While various 3D printing and additive manufacturing technologies have established methods for handling overhangs with temporary supports, [...] Read more.
The advantage of 3DCP technologies is the ability to fabricate free-form structures. However, printing openings in concrete structures are limited by the presence of overhanging sections. While various 3D printing and additive manufacturing technologies have established methods for handling overhangs with temporary supports, many existing techniques for 3D concrete printing still rely on wooden planks and corbelling, which restrict the design flexibility and slope angles. The objective of this study is to develop a removable and sustainable support material with high printability performance. This support material serves as temporary support for overhang sections in 3D-printed structures and can be removed once the primary concrete has hardened sufficiently. This study observed that increasing the recycled glass content in the mixture raises both the dynamic and static yield stresses, with only mixtures containing up to 60% recycled glass remaining pumpable. Optimization of the mixture design aimed to balance high flowability and buildability, and the results indicated that a mixture with 60% recycled glass content is optimal. The effectiveness of the optimized support material was validated through the successful printing of a structure featuring a free-form opening and overhang section. Full article
(This article belongs to the Special Issue Applications of High-Performance Concrete in Construction)
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