Author
Ali Kazemian
Other affiliations: Amirkabir University of Technology, Louisiana State University
Bio: Ali Kazemian is an academic researcher from University of Southern California. The author has contributed to research in topics: Medicine & Compressive strength. The author has an hindex of 11, co-authored 18 publications receiving 559 citations. Previous affiliations of Ali Kazemian include Amirkabir University of Technology & Louisiana State University.
Topics: Medicine, Compressive strength, Cancer, Internal medicine, Cementitious
Papers
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TL;DR: In this paper, a framework for performance-based laboratory testing of cementitious mixtures for construction-scale 3D printing is developed, where workability of a fresh "printing mixture" is studied in terms of print quality, shape stability, and printability window.
411 citations
TL;DR: A planning and Operations Control Software for Automated Construction (POCSAC) is developed as a major enabler for a seamless integration of BIM and Contour Crafting.
85 citations
TL;DR: The high precision and responsiveness of the developed system demonstrates the great potential for computer vision as a real-time quality monitoring and control tool for robotic construction.
73 citations
TL;DR: In this article, two approaches were employed to lower the portland cement content in self-consolidating concrete mixtures, namely, adopting a dense aggregate grading and partially replacing portland cements with natural zeolite.
Abstract: Self-consolidating concrete (SCC) is one of the innovative products in concrete technology that has been developed in recent years. However, many researchers are still trying to optimize the mixture proportions and investigate the incorporation of new materials in SCC. The typical high content of portland cement in SCC is one of the main challenges in optimization of its mixture proportions. This high cement consumption increases the production cost of SCC and, considering the large amount of CO2 emitted during portland cement production, is also undesirable from an environmental point of view. In this study, two approaches were employed to lower the portland cement content in SCC mixtures, namely, adopting a dense aggregate grading and partially replacing portland cement with natural zeolite. Portland cement was replaced by natural zeolite at different percentages to investigate the effect of this natural pozzolan on the fresh and hardened properties of the SCC mixtures. Fresh properties of the S...
72 citations
TL;DR: In this paper, the influence of pre-soaked super absorbent polymers (SAPs) on the properties of Self-Consolidating Lightweight Concrete (SCLWC) was evaluated.
50 citations
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TL;DR: A comprehensive review of the main 3D printing methods, materials and their development in trending applications was carried out in this paper, where the revolutionary applications of AM in biomedical, aerospace, buildings and protective structures were discussed.
Abstract: Freedom of design, mass customisation, waste minimisation and the ability to manufacture complex structures, as well as fast prototyping, are the main benefits of additive manufacturing (AM) or 3D printing. A comprehensive review of the main 3D printing methods, materials and their development in trending applications was carried out. In particular, the revolutionary applications of AM in biomedical, aerospace, buildings and protective structures were discussed. The current state of materials development, including metal alloys, polymer composites, ceramics and concrete, was presented. In addition, this paper discussed the main processing challenges with void formation, anisotropic behaviour, the limitation of computer design and layer-by-layer appearance. Overall, this paper gives an overview of 3D printing, including a survey on its benefits and drawbacks as a benchmark for future research and development.
4,159 citations
TL;DR: In this article, a numerical model was developed to analyse the mechanical behavior of fresh, 3D printed concrete, in the range of 0 to 90 min after material deposition, based on a time-dependent Mohr-Coulomb failure criterion and linear stress-strain behaviour up to failure.
422 citations
TL;DR: In this paper, a framework for performance-based laboratory testing of cementitious mixtures for construction-scale 3D printing is developed, where workability of a fresh "printing mixture" is studied in terms of print quality, shape stability, and printability window.
411 citations
TL;DR: In this article, the effects of print-time interval on the inter-layer strength, along with compressive and flexural strengths of extrusion-based 3D printed concrete in different directions were investigated.
322 citations
TL;DR: The application of additive manufacturing (AM) in construction has been increasingly studied in recent years as mentioned in this paper, and large robotic arm-and gantry-systems have been created to print building parts using aggregate-based materials, metals, or polymers.
Abstract: The application of additive manufacturing (AM) in construction has been increasingly studied in recent years. Large robotic arm- and gantry-systems have been created to print building parts using aggregate-based materials, metals, or polymers. Significant benefits of AM are the automation of the production process, a high degree of design freedom, and the resulting potential for optimization. However, the building components and 3D-printing processes need to be modeled appropriately. In this paper, the current state of AM in construction is reviewed. AM processes and systems as well as their application in research and construction projects are presented. Moreover, digital methods for planning 3D-printed building parts and AM processes are described.
309 citations