Utilization of rice husk ash and waste glass in the production of ternary blended cement mortar composites

Younes, M.M.; Abdel-Rahman, H.A.; Khattab, Magdy M.

doi:10.1016/j.jobe.2018.07.001

Cited by 66 publications

(27 citation statements)

References 35 publications

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“…Figure 1 provides a general subdivision of the organic natural fibers predominantly used as reinforcement in cement and geopolymer composites. Additionally, agricultural wastes such as rice husk ash from burning rice hulls process and bagasse from cane sugar production have also been incorporated in these composites [ 16 , 17 , 18 , 19 ].…”

Section: Natural Fibersmentioning

confidence: 99%

A Review on Natural Fiber-Reinforced Geopolymer and Cement-Based Composites

et al. 2020

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The use of ecological materials for building and industrial applications contributes to minimizing the environmental impact of new technologies. In this context, the cement and geopolymer sectors are considering natural fibers as sustainable reinforcement for developing composites. Natural fibers are renewable, biodegradable, and non-toxic, and they exhibit attractive mechanical properties in comparison with their synthetic fiber counterparts. However, their hydrophilic character makes them vulnerable to high volumes of moisture absorption, thus conferring poor wetting with the matrix and weakening the fiber–matrix interface. Therefore, modification and functionalization strategies for natural fibers to tailor interface properties and to improve the durability and mechanical behavior of cement and geopolymer-based composites become highly important. This paper presents a review of the physical, chemical and biological pre-treatments that have been performed on natural fibers, their results and effects on the fiber–matrix interface of cement and geopolymer composites. In addition, the degradation mechanisms of natural fibers used in such composites are discussed. This review finalizes with concluding remarks and recommendations to be addressed through further in-depth studies in the field.

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Section: Natural Fibersmentioning

confidence: 99%

A Review on Natural Fiber-Reinforced Geopolymer and Cement-Based Composites

et al. 2020

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“…High-performance asphalt concrete mixtures were reported based on high-strength BOF in the U.S. state of Colorado [ 29 ], and studies have been carried out using BOF in agricultural (non-construction) applications, such as soil demineralization [ 30 , 31 ]. More recently, studies have been conducted to investigate the advanced performance of blended cement [ 32 , 33 , 34 , 35 , 36 ]. Zhang et al [ 37 ] investigated the use of the BOF by studying the effect of the slag product and iron concentrate (products resulted from the magnetic separation process performed on the BOF).…”

Section: Introductionmentioning

confidence: 99%

Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material

et al. 2020

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Portland cement tends to exhibit negative environmental impacts; thus, it is required to find measures that will improve its green credentials. In this study, we report a blended Portland slag cement as an alternative environmentally-friendly building material in order to reduce the total carbon footprint resulted from the production of the ordinary Portland cement (OPC), which may resolve the environmental issues associated with carbon dioxide emissions. The ordinary Portland cement type I enhanced by basic oxygen steelmaking slag (BOF) is produced and casted into cubic and beam-like samples for the compressive and three-point bending tests, and the compressive and flexural strengths are experimentally measured. Numerical simulations are conducted to compare with the experimental result and satisfactory agreements are obtained. X-ray diffraction (XRD) investigations and porosity tests are then carried out using the semi-adiabatic calorimetry, which indicates that 5% BOF is the optimal ratio to accelerate the hydration process while increasing the amount of hydration products, especially at the early curing age of 3 days. Scanning electron microscope (SEM) images further indicate that BOF can be used to prevent the development of microcracks while mitigating their propagation within cement mortar. Our study indicates that the compressive strength of OPC can be critically increased by BOF at the relatively low concentrations of 5%. The blended slag cement reported in this paper provides advanced understanding on the green building material that uses byproduct wastes for the mechanical and electrical performance.

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“…Water absorption and IRA may increase with glass powder content [60,119] followed by a reduction at higher dosages [110]. A reverse trend has been found by other authors [120][121][122][123][124][125].…”

Section: Durability Properties and Thermal/fire Performancementioning

confidence: 71%

Current Sustainable Trends of Using Waste Materials in Concrete—A Decade Review

et al. 2020

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Concrete is the most used construction material in the world. Consequently, the mass extraction of virgin materials required for concrete production causes major environmental impacts. With a focus on promoting sustainability, numerous research studies on incorporating waste materials to replace virgin substances in concrete were undertaken. Despite this vast volume of published literature, systematic research studies on these sustainable concrete mixes that inform various stakeholders on current research trends, future research directions, and marketability options products are seldom conducted. This paper presents a decade review on sustainable concrete with a focus on virgin materials being replaced with waste materials. It aims to inform researchers of current research trends and gaps in the research area of waste material use in concrete. The review also identifies key parameters that restrict the marketability of these sustainable concrete products. The three-step research methodology involves a bibliometric assessment, a key review of selected waste materials, and an interview with a panel of experts focusing on impediments towards the transition of sustainable concrete products into the industry market. Bibliometric assessment was based on 1465 research publications in which five key materials (plastic, glass, fly ash, slag) and construction and demolition waste were selected for the review. The interview was conducted with ten industry experts to discuss the industry limitations in the commercial establishment of materials. The review of existing knowledge and the findings on sustainable concrete presented in this paper provide directions for both research academics and industry stakeholders to systematically focus on sustainable concrete products that are market-ready.

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Utilization of rice husk ash and waste glass in the production of ternary blended cement mortar composites

Cited by 66 publications

References 35 publications

A Review on Natural Fiber-Reinforced Geopolymer and Cement-Based Composites

A Review on Natural Fiber-Reinforced Geopolymer and Cement-Based Composites

Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material

Current Sustainable Trends of Using Waste Materials in Concrete—A Decade Review

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