A5008152787- Concrete and Cement Materials Research
- Innovations in Concrete and Construction Materials
- Additive Manufacturing and 3D Printing Technologies
- Innovative concrete reinforcement materials
- Recycled Aggregate Concrete Performance
- Bone Tissue Engineering Materials
- Smart Materials for Construction
- BIM and Construction Integration
- Natural Fiber Reinforced Composites
- Magnesium Oxide Properties and Applications
- Recycling and utilization of industrial and municipal waste in materials production
- Sustainable Supply Chain Management
- Material Properties and Applications
- Nanocomposite Films for Food Packaging
- Building materials and conservation
- Mining and Gasification Technologies
- Graphite, nuclear technology, radiation studies
- Graphene research and applications
- biodegradable polymer synthesis and properties
- Surface Treatment and Coatings
- TiO2 Photocatalysis and Solar Cells
- Environmental Impact and Sustainability
- Sustainable Building Design and Assessment
- Waste Management and Environmental Impact
- Nuclear materials and radiation effects
Brunel University of London
2020-2024
University of Rome Tor Vergata
2019-2023
National Interuniversity Consortium of Materials Science and Technology
2020
The weak mechanical properties the 3D printed parts can limit competence of this technology when compared to conventionally cast-in-mold cementitious composites structures. However, experimental results in study showed that incorporation nano additives could improve property Six geopolymeric mixtures were designed and tested for their flow-ability, shape stability, buildability performance. Different dosage graphite platelets (NGPs) ranging from 0.1% 1%, by weight geopolymer, incorporated...
Polyvinyl chloride plastic (PVC) and glass waste have proven to be significant environmental concerns considering their restricted reuse complicated recycling procedures. Glass PVC materials form a substantial portion of total solid wastes that negatively influence the environment. This study aims fully replace natural sand with recycled aggregates in alkali-activated (AAMs). A comprehensive testing programme was employed investigate effect 100 % aggregate replacement on composites'...
The widespread popularity of additive manufacturing in most industries ranging from biomedical to aerospace suggests a transformation manufacturing, which has recently also emerged the construction sector. This paper presents an active system for extrusion-based 3D printing cementitious materials. can be extended other materials and scaled up with slight hardware modifications. proposed uses unconventional yet simplistic approach generate consistent output material throughout process....
This study investigates the addition of Poly-vinyl Alcohol (PVA) fibres and attapulgite nanoclay to alkali-activated materials (AAMs) with aim enhancing mechanical performance optimizing printability buildability AAMs. The fresh properties six mix formulations, including flowability, slump values, rheology, shape retention, extrusion window, were evaluated. best performing mixes, that exhibited optimal properties, 3D printed, their performance, microstructure, investigated. 1 wt.-% (i.e....
One of the fields in construction industry where 3D printing cementitious composites can play a significant role is associated with manufacturing lightweight structures. Thanks to printing, structural self-weight be reduced by topology optimization printed elements. Moreover, further decrements and improvement thermal insulating properties achieved mixture design introduction materials low conductivity. To date, limited knowledge on printable mixtures available. The main objective this study...
The utilisation of biochar, the carbon negative product pyrolysis, reduces footprint cementitious composites as it possesses potential to replace consumption Portland cement. In a systematic investigation, biochar was used partial cement replacement for up 20 wt% in both pastes and mortars. A comprehensive experimental framework conducted evaluate impact on performance (i) paste terms hydration kinetics, rheology, strength development, porosity, (ii) mortars mechanical, thermal, transport...
This study investigates the effects of natural and calcined halloysite clay minerals ("NH" "CH", respectively) on performance 3D printed alkali-activated materials (AAMs). Halloysite are selected as they low-cost abundantly available. At first, different characterisation techniques were employed to characterise NH CH additives. Mechanical performance, extrusion window, shape stability several AAM formulations containing various dosages (0.5 wt% 5 wt%) additives evaluated. The best-performing...
The built environment sector is under increasing pressure to reduce costs while improving environmental quality. This paper examines Kuwait's current construction and demolition waste (CDW) management policy, highlights the obstacles faced by recycling processes suggests solutions enhance practices. Kuwait has only one landfill dedicated exclusively CDW, operating since 2009. Even though facilities handling faces several that hinder its efficacy. study aims identify impediments efficient...
There is an increasing trend in research projects and case studies to demonstrate the potential of Additive Manufacturing (AM) with concrete, better known as 3D concrete printing. Like ordinary construction, latest upgrades on this topic are strongly focused towards improving eco-sustainability terms low-carbon materials. Low-carbon binders' alternative Portland cement utilisation selected waste materials place virgin aggregates has high fulfilling sustainable development goals. In paper,...
3D printing technology can be of crucial importance in the design sustainable and energy-efficient building envelopes. With this technology, there is potential to mechanically thermally optimise topology printed walls. Additionally, infill materials used insulating, thus contributing overall reduction heat loss. To date, limited examples envelopes information about thermal mechanical performance walls are available. This study developed a printable wall element with an insulating property...
This paper explores the new potential strategy of using fine recycled aggregates (fRA) derived from waste 3D printed concrete (3DPC) as a substitute for cement in additive manufacturing. study hypothesizes that fRA can optimize mixture design, reduce content, and contribute to sustainable construction practices. Experimental programs were conducted evaluate fresh hardened properties, printability window, buildability 3DPC mixes containing fRA. Mixes with replacement rates by 10 vol%, 20 30...
This study explores the potential of waste brick and geo-cement aggregates as substitutes for natural sand in alkali-activated materials (AAMs) mortar production. With a focus on achieving net-zero construction mitigating environmental impact, replaces Portland Cement (OPC) virgin with by-products. The investigation evaluates substitution (up to 100 % by weight) AAMs (WBA) (WGA) obtained from demolished research lab waste, respectively. methodology involves assessing mechanical, durability,...
One of the ways to achieving net-zero concept in construction industry is use alternatives Portland cement (OPC) and virgin aggregates for concrete manufacturing. Recycled rubber polyvinyl chloride (PVC) conjunction with low-carbon binders can be potentially utilised substitute natural sand reduce negative environmental impacts OPC. A replacement (up 70% by volume) alkali-activated materials (AAMs) recycled PVC particles derived from tyre waste insulation coating electric wires,...
Utilising wheat straw reinforced OPC-free composites in the construction industry requires efficient, eco-friendly pre-treatment coupled with surface functionalisation methods to turn it into a high-performance material. Herein, alkali-activated material (AAM) was used as an matrix, while hybrid and functionalisations were applied mitigate quality deficiencies of improve its compatibility low-carbon binders. Wheat particles subjected mild physical (hot-water followed by steam) using...
This study investigates the printability of one-part brick powder-based alkali-activated materials (AAMs) containing end-of-life particles as aggregate. The novel formulation showcases promise for 3D printing small to medium-sized building blocks, reminiscent a Lego-type system, capitalising on rapid setting time inherent AAMs. effect replacing up 50% by weight natural aggregate with fresh properties materials, including slump measurements, flowability, time, open and green strength were...