On blended cement and geopolymer concretes containing palm oil fuel ash

Khankhaje, Elnaz; Hussin, Mohd Warid; Mirza, Jahangir; Rafieizonooz, Mahdi; Salim, Mohd Razman; Siong, Ho Chin; Warid, Muhammad Naqiuddin Mohd

doi:10.1016/j.matdes.2015.09.140

Cited by 137 publications

(65 citation statements)

References 62 publications

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“…Nevertheless, the optimum substitution ratio of cement for POFA is limited to 20% by some researchers [129][130][131] and 10% by others [132]. It was also noticed that 20% of POFA in concrete results in high strength with lower drying shrinkage concrete [131]. One drawback that can be found with POFA is the reduction of workability in fresh concrete mixtures [133,134].…”

Section: Other Pozzolanic Ashesmentioning

confidence: 99%

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Green Concrete: By-Products Utilization and Advanced Approaches

et al. 2019

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The popularity of concrete has been accompanied with dreadful consumptions that have led to huge carbon footprint in our environment. The exhaustion of natural resources is not yet the problem, but also the energy that is needed for the fabrication of the natural materials, in which this process releases significant amount of carbon dioxide (CO2) emissions into the air. Ordinary Portland Cement (OPC) and natural aggregates, which are the key constituents of concrete, are suggested to be recycled or substituted in order to address the sustainability concern. Here, by-products have been targeted to reduce the carbon footprint, including, but not limited to, fly ash, rice husk ash, silica fume, recycled coarse aggregates, ground granular blast-furnace slag, waste glass, and plastic. Moreover, advanced approaches with an emphasis on sustainability are highlighted, which include the enhancement of the hydration process in cement (calcium-silicate hydrate) and the development of new materials that can be used in concrete (e.g. carbon nanotube). This review paper provides a comprehensive discussion upon the utilization of the reviewed materials, as well as the challenges and the knowledge gaps in producing green and sustainable concrete.

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Section: Other Pozzolanic Ashesmentioning

confidence: 99%

“…One drawback that can be found with POFA is the reduction of workability in fresh concrete mixtures [133,134]. Therefore, superplasticizers are needed with the addition of POFA [131,135,136].…”

Section: Other Pozzolanic Ashesmentioning

confidence: 99%

Green Concrete: By-Products Utilization and Advanced Approaches

et al. 2019

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“…The generation of palm oil ash (POA) and boiler ash (BA) in Malaysia were estimated to be over 4 million tons per year [2]. The generated waste could lead to health-related issues, environmental problems, and also financial loss [3][4][5]. Although there are some studies on the utilization of POA such as a partial replacement of cement in concrete [6], as an adsorbent for the removal of heavy metal from aqueous solution [7], flue gas desulphurization [8], and recently as a nano-structured material in polymer [9], most of the ash is still disposed of in landfill that requires a lot of land area.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Palm Oil Ash Nanoparticles: Taguchi Optimization Method by Particle Size Distribution and Morphological Studies

et al. 2020

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The interest in the utilization of palm oil ash is high, mainly due to their renewable material, opportunity to enhance the properties and possibility to use in a wide range of applications. Palm oil ash is the by-product of the palm oil mill boilers and locally available in the form of micro-size particles. In this research, optimization of the milling process was designed using the Taguchi method to find the most influencing parameters for the preparation of palm oil ash (POA) nanoparticles using a ball milling technique. The experiment was applied using a L9 orthogonal array and signal to noise ratio to investigate the performance of parameters, which are milling time, milling speed, and balls size. The results from signal to noise ratio reveal that to produce POA nanoparticles in optimum parameters, the size of balls shows the highest significant effect on the production of POA nanoparticles, followed by milling time and speed. The results of the parameters optimization experiment were validated by a confirmation test of milling machine operations.

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“…Utilisation of agricultural waste such as ashes can also help make the construction industries more sustainable and eco-friendly [21]. The consumption of pozzolanic materials in the production of concrete for their benefits is a common practice.…”

Section: Introductionmentioning

confidence: 99%

Production of sustainable fibre-reinforced concrete incorporating waste chopped metallic film fibres and palm oil fuel ash

Mohammadhosseini

Tahir

2018

Sādhanā

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The consumption of waste materials is one of the essential concerns of waste management strategies in many parts of the world. With the advances in concrete technology, the utilisation of waste materials in the sustainable construction has developed increasingly widespread because of technological, economic and ecological advantages. This paper presents the workability and mechanical properties of concrete incorporating waste chopped metallic film (WCMF) fibres and palm oil fuel ash (POFA). Waste plastic results in waste discarding disaster and consequently causes significant harms to the environment. WCMF fibres were prepared by recycling metallic-plastic films used for food packaging. Six concrete mixes containing 0-1.25% WCMF fibres with a length of 20 mm were made of ordinary Portland cement (OPC). Further, six concrete mixes with the same fibre content were made, where 20% POFA substituted OPC. The combination of WCMF fibres and POFA decreased the workability of concrete mixes. The inclusion of WCMF fibres to OPC and POFA concrete mixes decreased the compressive strength. However, at the curing period of 91 days, the POFA-based mixes obtained higher compressive strength values than those of OPC-based mixtures. The positive interaction between WCMF fibres and POFA consequently enhanced the flexural and tensile strengths, impact resistance, thereby increasing energy absorption capacity and ductility of concrete composites. It revealed that WCMF fibres acted as a bridge arrester and improved the load-transfer capacity of the concrete specimens. The study showed that the utilisation of WCMF fibres in the production of sustainable concrete is a beneficial, affordable and feasible solution. Keywords. Sustainability; fibre-reinforced concrete; waste chopped metallic film fibres; palm oil fuel ash; workability; mechanical properties.

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On blended cement and geopolymer concretes containing palm oil fuel ash

Cited by 137 publications

References 62 publications

Green Concrete: By-Products Utilization and Advanced Approaches

Green Concrete: By-Products Utilization and Advanced Approaches

Preparation of Palm Oil Ash Nanoparticles: Taguchi Optimization Method by Particle Size Distribution and Morphological Studies

Production of sustainable fibre-reinforced concrete incorporating waste chopped metallic film fibres and palm oil fuel ash

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