Engineering properties of fibre reinforced lightweight geopolymer concrete using palm oil biowastes

Malkawi, Ahmad B.; Habib, Maan; Aladwan, Jamal; Alzubi, Yazan

doi:10.1080/14488353.2020.1721954

Cited by 18 publications

(6 citation statements)

References 27 publications

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“…The durability of CFGCs can be judged by soaking in sulfuric acid solution to test its cross-section reduction, weight loss, compressive strength loss and other changes. Maan et al [ 82 ] prepared several concrete mixtures by using fly ash and crushed palm oil clinker (POC) as lightweight aggregate and oil palm trunk fiber (OPTF) as natural fiber reinforcement. In the concrete mixture, POC was added to the mixture in proportions of 25%, 50%, 75% and 100% by mass, and OPTF was added to the mixture in proportions of 1%, 2% and 3% by volume, respectively.…”

Section: Research Status Of the Durability Of Cfgcsmentioning

confidence: 99%

Durability of Cellulosic-Fiber-Reinforced Geopolymers: A Review

Liu

2022

Molecules

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Geopolymers have high early strength, fast hardening speed and wide sources of raw materials, and have good durability properties such as high temperature resistance and corrosion resistance. On the other hand, there are abundant sources of plant or cellulose fibers, and it has the advantages of having a low cost, a light weight, strong adhesion and biodegradability. In this context, the geopolymer sector is considering cellulose fibers as a sustainable reinforcement for developing composites. Cellulosic-fiber-reinforced geopolymer composites have broad development prospects. This paper presents a review of the literature research on the durability of cellulosic-fiber-reinforced geopolymer composites in recent years. In this paper, the typical properties of cellulose fibers are summarized, and the polymerization mechanism of geopolymers is briefly discussed. The factors influencing the durability of cellulosic-fiber-reinforced geopolymer composites were summarized and analyzed, including the degradation of fibers in a geopolymer matrix, the toughness of fiber against matrix cracking, the acid resistance, and resistance to chloride ion penetration, high temperature resistance, etc. Finally, the influence of nanomaterials on the properties of geopolymer composites and the chemical modification of fibers are analyzed, and the research on cellulosic-fiber-reinforced geopolymer composites is summarized.

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Section: Research Status Of the Durability Of Cfgcsmentioning

confidence: 99%

Durability of Cellulosic-Fiber-Reinforced Geopolymers: A Review

Liu

2022

Molecules

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“…The addition of mono polypropylene fibres of more than 0.15% results in a decrease in compressive strength. This may be due to the fibres' high volume fraction, which results in the balling effect of the fibres [18,[39][40][41]. It may be noted that the addition of steel or polypropylene fibres in TGPC increased the compressive strength marginally.…”

Section: Compressive Strengthmentioning

confidence: 99%

Section: Compressive Strengthmentioning

confidence: 99%

“…In the initial stage, the polypropylene fibres control the propagation of microcracks. As the load increased, the action of steel fibre comes into existence in arresting the propagation of macrocracks, thereby increasing the flexural strength of the concrete [38,41]. The percentage increase in modulus of rupture varies from 7.29% for PTGPC1 up to 39.67% for HTGPC6.…”

Section: Split Tensile Strengthmentioning

confidence: 99%

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Engineering Properties of Hybrid Fibre Reinforced Ternary Blend Geopolymer Concrete

2021

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The primary aim of this research is to find an alternative for Portland cement using inorganic geopolymers. This study investigated the effect of steel and polypropylene fibres hybridisation on ternary blend geopolymer concrete (TGPC) engineering properties using fly ash, ground granulated blast furnace slag (GGBS) and metakaolin as the source materials. The properties like compressive strength, splitting tensile strength, flexural strength and modulus of elasticity of ternary blend geopolymer concrete. The standard tests were conducted on TGPC with steel fibres, polypropylene fibres and a combination of steel and polypropylene fibres in hybrid form. A total number of 45 specimens were tested and compared to determine each property. The grade of concrete considered was M55. The variables studied were the volume fraction of fibres, viz. steel fibres (0%, 0.5% and 1%) and polypropylene fibres (0%, 0.1%, 0.15%, 0.2% and 0.25%). The experimental results reveal that the addition of fibres in a hybrid form enhances the mechanical properties of TGPC. The increase in the compressive strength was nominal, and a significant improvement was observed in splitting tensile strength, flexural strength, and modulus of elasticity. Also, an attempt to obtain the relation between the different engineering properties was made with different volume fractions of fibre.

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“…Geopolymer concrete is a new type of concrete that has zero Portland cement content. Geopolymer concrete can utilize several abandoned materials to create a strong binder that has superior properties as compared to ordinary cement concrete [96][97][98]. Geopolymer concrete uses an alkaline solution as an activating solution that largely influences its properties, including shrinkage [99,100].…”

Section: Geopolymer Concretementioning

confidence: 99%

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

et al. 2020

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Concrete is indeed one of the most consumed construction materials all over the world. In spite of that, its behavior towards absolute volume change is still faced with uncertainties in terms of chemical and physical reactions at different stages of its life span, starting from the early time of hydration process, which depends on various factors including water/cement ratio, concrete proportioning and surrounding environmental conditions. This interest in understanding and defining the different types of shrinkage and the factors impacting each one is driven by the importance of these volumetric variations in determining the concrete permeability, which ultimately controls its durability. Many studies have shown that the total prevention of concrete from undergoing shrinkage is impractical. However, different practices have been used to control various types of shrinkage in concrete and limit its magnitude. This paper provides a detailed review of the major and latest findings regarding concrete shrinkage types, influencing parameters, and their impacts on concrete properties. Also, it discusses the efficiency of the available chemical and mineral admixtures in controlling the shrinkage of concrete.

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Engineering properties of fibre reinforced lightweight geopolymer concrete using palm oil biowastes

Cited by 18 publications

References 27 publications

Durability of Cellulosic-Fiber-Reinforced Geopolymers: A Review

Durability of Cellulosic-Fiber-Reinforced Geopolymers: A Review

Engineering Properties of Hybrid Fibre Reinforced Ternary Blend Geopolymer Concrete

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

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