In situ Resource Utilization and Reconfiguration of Soils Into Construction Materials for the Additive Manufacturing of Buildings

Punching above its weight: life cycle energy accounting and environmental assessment of vanadium microalloying in reinforcement bar steel

“…IEE covers embodied energy contributions during the construction phase due to material usage and construction and transportation processes, whereas REE pertains to materials and processes used in maintenance, replacement and repairs during the building life cycle (Dixit, 2019). Building materials account for over 90% of the total embodied impact of construction (IEE), and their judicious selection is thus of paramount importance to reducing the enormous energy and environmental footprint of construction (Bajpayee et al, 2020;Dixit, 2017;Hasanbeigi et al, 2012).…”

“…Arguably one of the intrinsic difficulties associated with this effort is to simultaneously reduce values of both embodied energy and operational energy, which often have countervailing dependencies. Central to the adoption of sustainable building practices is the design and deployment of materials within structural elements, architectural facades, and functional components that either can be sourced with minimal impact on the environment and/or drastically reduce operational energy consumption (Bajpayee et al, 2020;Bechthold and Weaver, 2017;Hasanbeigi et al, 2012). Obtaining a rigorous accounting of materials across their life cycle is imperative to inform the selection of building materials and requires consideration of the embodied energy and CO2 implications of materials production and transportation, quantities required to achieve specific functionality, constraints arising from use of the said material, and the often entangled changes in the requirements for other materials or components.…”

Bioengineering Bone Tissue with 3D Printed Scaffolds in the Presence of Oligostilbenes

“…Dental bud stem cells (DBSCs) are widely recognized as MSCs that can effectively differentiate into osteoblast-like cells [ 13 ] becoming a suitable candidate for bone regeneration. DBSCs express the typical mesenchymal stem markers and, as we have shown, their ability to acquire the osteoblastic features and to produce mineralized bone matrix in vitro, which is the crucial event of osteogenic differentiation [ 14 , 15 ], can be positively influenced by several molecules [ 16 , 17 , 18 , 19 ]. Polydatin (Pol) deserves a particular mention among the natural molecules capable of inducing DBSCs osteogenic differentiation [ 19 ] and opens new horizons to its possible use as a therapeutic agent, as we have exhaustively detailed in our new invention patent (patent n.16999PTIT entitled “Composizioni comprendenti o costituite da Polidatina per uso nel trattamento delle patologie ossee”—“Compositions comprising or consisting of Polydatin to be used in the treatment of bone pathologies”, deposited with application number 102017000079581).…”

Influence of curing age on high-temperature properties of additive manufactured geopolymer mortar

“…The application of 3D printing technique in construction and building is attracting more and more attentions, and some researches and engineering projects have been conducted [1][2][3][4][5][6][7][8][9][10]. Geopolymer that is green, sustainable, and alternative to Portland cement has been formed as 3D printable cementitious materials [11][12][13].…”