Landfill and incineration of obsoleted Basalt Fiber Reinforced Resin (BFRR) not only waste resources, but also pollute environment. Therefore, this study investigates the stock, environmen-tal ...
ABSTRACT: Fiber reinforcement can effectively improve the toughness, shrinkage, and durability characteristics of concrete. The use of recycled fibers from industrial or postconsumer waste …
Recycling concrete is crucial for waste management and sustainable building, especially products made of reinforced concrete. By recycling used concrete into new materials for construction projects, this process not only lessens the negative environmental effects of construction waste but also conserves natural resources.
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 Composites Science 2021 ...
Autoclaved aerated concrete (AAC) is made of quartz sand, cement, quicklime, anhydrite or gypsum, aluminium powder/paste (as aerating agent), and water (Kreft, 2017; German Institute for Standardization, 2018).During production, a porous structure typical for AAC is formed where the millimetres to nanometres sized pores make up 60 – 85 vol.-% (Anders, …
The waste thermoset GFRP composite was used as aggregate and filler replacement for concrete, mortar, and bitumen-reinforced concrete, and their mechanical performance, durability performance, ... To reduce the negative impacts and costs of GFRP production, countries worldwide are developing recycling and repurposing technologies. This …
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 (pyrolysis and fluidized-bed ...
Enforced carbonation of recycled concrete aggregate (RCA) is a growing technology with enormous potential. This carbonation treatment uses CO 2 to improve the …
Fiber-reinforced polymer composites, reaching a production of approximately 2.56 million tons in 2023 in Europe, display unique properties, yet they are disposed of at their end of service by conventional methods such as landfill and incineration. Here, we review the recycling of fiber-reinforced polymer wastes in the construction industry, with emphasis on fiber-reinforced …
Comparison of various building types (residential, commercial), designs, and materials (concrete, steel, timber, composite) using LCA has been made; however, mostly limited to energy and carbon ...
Fiber Reinforced Concrete (FRC), which is strengthening by short fibers, can improve not only mechanical properties but also durability due to reduced crack width by fiber …
Behaviour of recycled tyre polymer fibre reinforced concrete under dynamic splitting tension. Cem. Concr. Compos. (2020) M. Chen et al. Flexural fatigue behaviour of recycled tyre polymer fibre reinforced concrete. ... Improvement of waste tyre recycling technology based on a new Tyre markings. J. Clean. Prod. (2020)
1. Introduction. To substitute the natural aggregates of concrete with the recycled aggregates made of mining waste and demolished concrete structures, different approaches have been investigated in recent decades [1,2,3].Efforts have been put into improving the recycling process and technology of recycled aggregates to eliminate the defects of recycled coarse …
This paper aims to present a non-destructive magnetic method developed for simultaneously identifying key parameters in reinforced concrete (RC) structures. This method is designed to evaluate concrete structures containing dense reinforcement meshes. The development process of the system is presented step by step. First, the hardware layer of the …
Recycled concrete fines and recycled concrete paste . New uses for concrete demolition waste are in development. Recycled concrete fines are the residue of concrete waste after recycled aggregates are removed. It consists of cements pastes and sand. It accounts for ~15% of recycled concrete and currently has only low value uses.
Concrete is a mixture composed of a filler material (aggregate) bound together by a hardened paste. One might call it man-made stone. The hardened paste is the result of a chemical reaction, called hydration, between cement and water.In addition, admixtures —various chemicals, usually in liquid form—are often used to impart desirable qualities to the freshly …
The described method of separating the hardened cement mortar from the coarse aggregate and disintegrating this mortar, as well as the device for applying this method, will simplify existing recycling technologies of reinforced concrete structures, increase the efficiency of production lines, significantly improve the environmental protection ...
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 aggregate, …
One way to reduce this impact involves the opportunity to recycle waste materials as fiber in concrete reinforcement, thus following the circular economy principles. The feasibility of using different waste materials in Recycled Fiber Reinforced Concrete (RFRC) is attracting practitioners' attention. Through a systematic literature review ...
This paper presents the pull-out bonding behaviour and mechanical performance of recycled carbon fibre (rCF) reinforced concrete based on the recent investigation of fibre reinforced concrete (FRC) with rCF recovered from pyrolysis. Single fibre pull-out tests have been carried out to identify the apparent interfacial shear strength of different types of rCF and …
Recycling waste fiber-reinforced polymer composites for low-carbon asphalt concrete: The effects of recycled glass fibers on the durability of bituminous composites ... Advanced chemical and thermal recycling technologies have been developed in recent years to treat FRP waste and remove the polymer from the recycled fiber surface, but the ...
Nano-silica (NS) is a widely used sustainable material with a high surface area that contributes to the production of high-early-strength concrete through three primary …
This paper presents a review of waste disposal methods for fibre reinforced polymer (FRP) materials. The methods range from waste minimisation, repurposing, reusing, recycling, incineration, and ...
Then, the behavior of reinforced recycled aggregate concrete columns under concentric and eccentric compressive loads and the seismic performance under low cyclic loading are discussed. The similarities and the differences between reinforced recycled aggregate concrete and reinforced natural aggregate concrete beams and columns are highlighted.
Scholars have made considerable efforts to minimize cement use in concrete production while ensuring that its strength is uncompromised. An effective approach involves partially substituting cement with by-products such as blast silica fume, fly ash, furnace slag, or various industrial wastes [3], [4], [5], [6].However, the substitution rate is limited by inadequate …
Industrial and Laboratory Technologies for the Chemical Recycling of Plastic Waste. ACS Catalysis (IF 11.3) Pub Date: , DOI: 10.1021/acscatal.4c03194 Mason T. Chin, Tianning Diao. Recyclable thermoplastic FRP bars for reinforced concrete structures: Current status and future opportunities. Composite Structures (IF 6.3) ...
ADR and HAS are industrial-scale technologies aimed to recycle End-of-Life (EoL) concrete into coarse, fine and ultrafine particles. While ADR is used to sort out clean coarse …
Landfill and incineration of obsoleted Basalt Fiber Reinforced Resin (BFRR) not only waste resources, but also pollute environment. Therefore, this study investigates the stock, environmen-tal ...
Comparison of various building types (residential, commercial), designs, and materials (concrete, steel, timber, composite) using LCA has been made; however, mostly limited to energy and carbon ...