The aim of this paper is to emphasize recycling technologies used for fiber reinforced composites, and their potential reusage. Discover the world's research 25+ million members
The purpose of this review is to evaluate end-of-life FRP recycling technologies in terms of optimizing the reuse/recycling of resources and eliminating waste, thereby improving FRP waste management. The technical progress made in the recycling of thermosetting composites is reviewed, including mechanical, thermal …
Concrete pavement recycling is an environmentally sustainable choice in terms of energy and other life- cycle impacts. It can reduce the mining, use, and transportation of …
The whole life cycle of carbon fiber reinforced polymer composite from production, service to retirement will produce huge amount of waste, bringing serious environmental pollution and resource waste. In this paper, the waste carbon fiber produced in the production process was added to the concrete to study its influence law and …
There are multiple benefits to recycling and re-using that concrete to build in or near the same space. Large volumes of waste now sent to landfills could be greatly reduced, along with the amount of …
Glass fiber-reinforced plastics (GFRP) have been produced in large quantities for over half a century and nowadays their waste has become a problem worldwide. Their recycling is difficult because they are predominantly manufactured from thermosetting matrices that are not suitable for secondary processing. Only few …
The recycling process supported by EuCIA, and available in Germany, involves the addition of GRP waste to cement kilns. This gains value from all parts of the composite and is commercially active in …
Concrete is, after water, the second most widely used material on the planet. The manufacturing of concrete generates about 4.5 percent of the world's human-induced carbon dioxide emissions. Replacing even a small portion of concrete with irradiated plastic could thus help reduce the cement industry's global carbon footprint.
MIT students have developed a form of concrete using recycled plastic water bottles. The new material is 20 percent stronger than traditional concrete and could help cut the cement industry's carbon …
Innovative technologies and practices, such as self-healing concrete, 3D-printed concrete, photocatalytic concrete, insulated concrete forms (ICF), waste-derived …
Disadvantages of Reinforced Concrete . Reinforced concrete structures are heavier than others like steel, wood, and glass structures. Concrete Buildings need massive formwork, centering,shuttering to be fixed. As a …
In the last decade, waste carbon fiber-reinforced plastic (CFRP) products have not been properly recycled and reused, and they sometimes cause environmental problems. In this paper, the microwave …
The purpose of this review is to evaluate end-of-life FRP recycling technologies in terms of optimizing the reuse/recycling of resources and eliminating waste, thereby improving FRP waste management. The technical progress made in the recycling of thermosetting composites is reviewed, including mechanical, thermal …
Recycling fibre-reinforced plastic composite materials in accordance with circular economy principles might be a way to overcome such problems. Thus, this paper aims to empirically analyse the existing scientific literature regarding recycling technologies for fibre-reinforced plastic composite materials.
4. Orientation of Fibers One of the differences between conventional reinforcement and fiber reinforcement is that in conventional reinforcement, bars are oriented in the direction desired while fibers are randomly oriented. To see the effect of randomness, mortar specimens reinforced with 0.5% volume of fibers were tested.
Before exploring the recycling and reuse of formwork, we present the fabrication process of reinforced concrete beams with the integration of steel fibers and longitudinal rebars to address the objective of evaluating the load-bearing behaviour in the structural tests (Section 2.5).
Reis JML, Ferreira AJM. Assessment of fracture properties of epoxy polymer concrete reinforced with short carbon and glass fibers. Construct Build Mater 2004; 18: 523–528. Crossref. Web of Science ... et al. Composite material recycling technology—state-of-the-art and sustainable development for the 2020s. Journal of …
Recently, significant events took place that added immensely to the sociotechnical pressure for developing sustainable composite recycling solutions, namely (1) a ban on composite landfilling in Germany in 2009, (2) the first major wave of composite wind turbines reaching their End-of-Life (EoL) and being decommissioned in 2019–2020, …
The objective of this work was to conduct an experimental investigation on the performance of concrete mechanical characteristics, with a specific focus on …
BIEM technology is a non-destructive technique to enhance the durability of reinforced concrete. The reinforcement of the concrete structure is used as the cathode and the external titanium plate is used as the anode to apply an electric field in the concrete cover. Triethylenetetramine (TETA) solution is used as electrolyte.
Fiber-reinforced composites are becoming ubiquitous as a way of lightweighting in the wind, aerospace, and automotive industries, but current recycling technologies fall short of a circular economy.
The ability of recycling of ordinary FRC having various kinds of fiber was experimentally investigated.. The fiber addition (ranging from 0.2% to 1.0% in vol.) makes the size of crushed concrete smaller. • The effect of fiber type (steel and PP) on the size of produced pieces was not significant.. The contained fiber can be removed by the …
What follows is a short presentation of some results of a research project on demolition, recycling and dismantling of reinforced concrete. This paper deals with some of the results obtained with the fragmentation of 30 types of 15 years old concrete, with separation of the reinforcement by means of explosives and with the recycling of the …
This Special Issue aims to provide selected contributions on advances in the recycling technology, characterization, and applications of recycled fibers, with the aim of enhancing the quality of sustainable concrete. Potential topics include, but are not limited to: FRP recycling technologies; Methods to improve the defects of recycled FRP;
Fiber Reinforced Concrete (FRC), which is strengthening by short fibers, can improve not only mechanical properties but also durability due to reduced crack …
The concrete mix design was done in two categories; the first was a control mix concrete and the second was the experimental mix concrete with the addition of steel fibers with varying lengths ...
"It's a good business model." But to produce high quality concrete, it is important that parent concrete is of high quality as well. Alam's work points toward greater use of recycled concrete. It's one step toward getting the word out that this kind of recycling is possible, cheap, and and produces strong and long-lasting results.
The structural performances are reviewed focusing on the main geometric and material variables such as the recycled concrete aggregate replacement ratio, the …
A highly efficient, low-carbon crushing technology is urgently needed for recycling demolished reinforced concrete (RC) components. Static pressure crushing (SPC), based on fragmentation theory, is a proposed solution. This paper presents a numerical model and a corresponding quantitative analysis method for the SPC of RC components.
Advanced carbon fiber composites recycling technologies are environmentally preferred option, with substantial environmental benefits relative to conventional landfill and incineration. ... A …
Recycled aggregate concrete is an effective solution for efficiently managing municipal construction waste on a large scale. Shear bearing capacity (SBC) is significant for reinforced concrete structures, and it is essential to develop trustworthy calculation models for structural design. This paper proposes a tree model-based SBC assessment …
Recycling of waste concrete is also very important as waste concrete comprises 50–55% of C & D wastes (Andal et al., 2016; Gao et al., 2017). Lastly, this study also showcases the post-crushing/failure behavior of CFRP-reinforced concrete beam and crack propagation which is rarely reported in literature.
Conventional reinforced concrete uses steel's tensile strength and concrete's compressive strength to create a material that's strong in both compression and tension. ... Recycling Roads Saves Money and Natural Resources; ... Concrete Technology and Industry Outreach. James Farny, FACI. Director, Environmental Measurement and …
This paper reviews some of the work on concrete reinforcement using recycled fibers, including tire cords/wires, carpet fibers, feather fibers, steel shavings, …
Fibre-reinforced plastic (FRP) materials are attracting growing interest because of their high specific mechanical properties. These characteristics, in addition to a high level of tailorability and design of …
Related links. Material efficiency; Refurbishment, reuse and renewal; End of life recycling. The construction industry in the UK accounts for the use of 295 million tonnes of material per year, displaces 22 million tonnes of industrial 'by-product' by industrial ecology each year and produces approximately 150 million tonnes of construction and demolition …
