Journal ArticleDOI
Use of recycled fibers in concrete composites: A systematic comprehensive review
TLDR
In this article, a comprehensive review was carried out on the influence of recycled plastic fibers (RPFs), recycled carpet fibers (RCFs) and recycled steel fibers (RSFs) on the fresh, mechanical and ductility properties of concrete.Abstract:
Municipal solid waste materials are growing worldwide due to human consumption. Nowadays, a different type of goods on large-scale is produced in the factories which is going to generate numerous amount of solid waste materials in the near future. Therefore, the management of these solid waste materials is a great concern around the world. Inadequate landfill, environmental pollution and its financial burden on relevant authorities, recycling and utilization of waste materials have a significant impact compared to disposing them. Studies have been done to reuse of waste materials as one of the elements of concrete composites. Each of the elements gives the concrete strength; however, the reuse of these wastes not only makes the concrete economical and sustainable, but also helps in decreasing environmental pollution. There are a number of different types of waste materials such as plastics, carpets, steels, tires, glass, and several types of ashes. In this paper, a comprehensive review was carried out on the influence of recycled plastic fibers (RPFs), recycled carpet fibers (RCFs) and recycled steel fibers (RSFs) on the fresh, mechanical and ductility properties of concrete. The previous studies were investigated to highlight the effects of these waste product fibers on the most important concrete properties such as slump, compressive strength, splitting tensile strength, flexural strength, modulus of elasticity, ultrasonic pulse velocity, energy absorption, ductility, and toughness. In this regard, more than 200 published papers were collected, and then the methods of preparation and properties of these recycled fibers (RF) were reviewed and analyzed. Moreover, empirical models using mechanical properties were also developed. As a result, RPFs, RCFs and RSFs could be used safely in concrete composites due to it is satisfactory fresh, physical and mechanical properties.read more
Citations
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Soft computing models to predict the compressive strength of GGBS/FA- geopolymer concrete
TL;DR: In this paper , Artificial Neural Network (ANN), M5P-Tree (M5P), Linear Regression (LR), and Multi-logistic regression (MLR) models were used to develop the predictive models for predicting the compressive strength of blended ground granulated blast furnace slag and fly ash based-geopolymer concrete (GGBS/FA-GPC).
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Proposing several model techniques including ANN and M5P-tree to predict the compressive strength of geopolymer concretes incorporated with nano-silica
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Application of Graphene in Fiber-Reinforced Cementitious Composites: A Review
TL;DR: In this article, a critical and synthetical overview on recent research findings of the implementation of graphene in fiber-reinforced cementitious composites was conducted, highlighting the main contribution of nucleation effect, filling effect, interfacial bonding effect, and toughening effect.
Journal ArticleDOI
A critical review on the utilization of coir (coconut fiber) in cementitious materials
TL;DR: In this paper , a review article summarizes the published literature and identifies future research gaps on the behavior of coir-reinforced composites for civil engineering applications, including the benefits and drawbacks of using coir as fiber reinforcement in concrete.
Journal ArticleDOI
Epoxy, polyester and vinyl ester based polymer concrete: a review
TL;DR: In this article, the authors provide a comparative state-of-the-art review of fresh, mechanical and durability properties, of each resin used with their respective results, based on the reviewed content, the addition of resins can enhance physicomechanical and durability of concrete structures, especially if used in combination with other fillers and cementitious materials, producing a cost-effective composite material.
References
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Book
Concrete: Microstructure, Properties, and Materials
P.K. Mehta,Paulo J.M. Monteiro +1 more
TL;DR: Concrete: Microstructure, Properties, and Materials as mentioned in this paper provides complete details on the microstructure-property relationship approach to provide scientific explanation for the strength and durability of concrete.
What a Waste : A Global Review of Solid Waste Management
TL;DR: In this paper, the authors estimate that the amount of municipal solid waste (MSW) generated by urban populations is growing even faster than the rate of urbanization and that by 2025 this will likely increase to 4.3 billion urban residents.
Journal ArticleDOI
Recycling and recovery routes of plastic solid waste (PSW): A review
TL;DR: Although primary and secondary recycling schemes are well established and widely applied, it is concluded that many of the PSW tertiary and quaternary treatment schemes appear to be robust and worthy of additional investigation.
Journal ArticleDOI
Solid waste management challenges for cities in developing countries
TL;DR: In this article, a combination of methods was used in order to assess the stakeholders and the factors influencing the performance of waste management in the cities, in more than thirty urban areas in 22 developing countries in 4 continents.
Journal ArticleDOI
Fibre reinforced cement-based (FRC) composites after over 40 years of development in building and civil engineering
TL;DR: In this paper, the main fields of application of FRC composites are examined and future perspectives discussed, and some attention is paid to computation methods and composite materials' design approaches.