Use of oil palm shell as an aggregate in cement concrete: A review

Hamada, Hussein M.; Thomas, Blessen Skariah; Tayeh, Bassam A.; Yahaya, Fadzil Mat; Muthusamy, Khairunisa; Yang, Jian

doi:10.1016/j.conbuildmat.2020.120357

Cited by 87 publications

(41 citation statements)

References 114 publications

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“…Global demographic problems, with uncontrollable growth of population, greatly increase the demand for energy [ 1 ] and construction materials [ 2 ] over the past decade, combining the need to make the latter sustainable into a major global challenge nowadays.…”

Section: Introductionmentioning

confidence: 99%

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Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

et al. 2021

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The large increase in the world population has resulted in a very large amount of construction waste, as well as a large amount of waste glycerol from transesterification reactions of acyl glycerides from oils and fats, in particular from the production of biodiesel. Only a limited percentage of these two residues are recycled, which generates a large management problem worldwide. For that reason, in this study, we used crude glycerol as a carbon source to cultivate polyhydroxyalkanoates (PHA)-producing mixed microbial cultures (MMC). Two bioproducts derived from these cultures were applied on the surface of concrete with recycled aggregate to create a protective layer. To evaluate the effect of the treatments, tests of water absorption by capillarity and under low pressure with Karsten tubes were performed. Furthermore, SEM-EDS analysis showed the physical barrier caused by biotreatments that produced a reduction on capillarity water absorption of up to 20% and improved the impermeability of recycled concrete against the penetration of water under pressure up to 2.7 times relative to the reference. Therefore, this bioproduct shown to be a promising treatment to protect against penetration of water to concrete surfaces increasing its durability and useful life.

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Section: Introductionmentioning

confidence: 99%

“…All waste materials and by-products should be recycled and reintroduced in the productive chain for the purpose of preserving the environment. One of the most efficient strategies employed in addressing problems related to solid wastes consists on recovering usable materials from waste and use them instead of raw materials [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

et al. 2021

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“…The sand used has a density of 2680 kg/m 3 . Its bulk density is 1530 kg/m 3 and its Fineness modulus is 2.90. The gravel used is in the same range: density of Open Journal of Civil Engineering 2660 kg/m 3 and a bulk density of 1510 kg/m 3 [8].…”

Section: Properties Of the Materials Usedmentioning

confidence: 99%

“…At different periods (30, 60 and 90 days) the specimens were split, and the depth of penetration of the chloride ions was measured after spraying with a silver nitrate solution (AgNO 3 ). From these penetration depths, an apparent diffusion coefficient can be calculated according to Equation (3) proposed by Baroghel-Bouny et al [10]. It is important to note that this method is simple but has some drawbacks.…”

Section: Diffusion Of Chloride Ionsmentioning

confidence: 99%

“…The use of oil palm shells (OPS) as aggregates in concrete is an interesting alternative to reduce the negative impact of the concrete industry. During the last two decades, authors have shown the potential use of OPS to produce lightweight structural concrete [1] [2] [3]. Concrete using OPS as aggregate has a density range from 1725 to 2050 kg/m 3 which corresponds to a 15% -25% reduction compared to the density of ordinary concrete [1].…”

Section: Introductionmentioning

confidence: 99%

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Durability of Lightweight Concrete Using Oil Palm Shell as Aggregates

Traore¹,

Messan²,

Hannawi³

et al. 2021

OJCE

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Oil Palm Shell (OPS) concrete can be used in different fields of construction. To determine more accurately the fields of application, it is important to know and understand the behaviour of OPS concrete over the long term and when it is in aggressive environments. This paper presents the results of studies conducted on the durability of OPS concrete. Water absorption capacity, electrical resistivity and apparent diffusion of chloride ions have been measured on different concrete samples. In addition, the behaviour of OPS concretes to carbonation was studied in an environment rich in carbon dioxide. Results show that OPS concrete has an absorptivity of 0.97 kg/m 2 •h 1/2 , an electrical resistivity of 64.37 Ω•m and an apparent diffusion coefficient of chloride ions of 3.84 × 10 −12 m 2 /s after 90 days. All these results of OPS concrete are very close to those of concrete with normal aggregate and other lightweight concrete, which mean OPS concretes have globally good properties with regard to durability.

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Predicting the uniaxial compressive strength of oil palm shell lightweight aggregate concrete using artificial intelligence‐based algorithms

Zhu

Huang

Mao

et al. 2021

Structural Concrete

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Because natural coarse aggregates were depleting rapidly, concrete industry has been trended toward substitute aggregates from industrial by-products or waste. One of the waste materials is oil palm ash (OPS), which is widely generated in the processing of palm oil in the tropics. Concretes made with OPS to estimate the compressive strength (CS) is cost and time consuming. This study aims to propose novel hybrid models by concepts of extreme gradient boosting (XGB) model optimized with different optimization algorithms such as sinecosine algorithm, multiverse optimization algorithm (MVO), and particle swarm optimization for predicting the uniaxial CS (UCS) of oil palm shell lightweight aggregate concrete (OPS). Also, the multivariate adaptive regression spline model is also developed to present a meaningful relationship between input and output variables. To this aim, a data set containing data samples for concrete made with OPS was gathered from the published literature. Results show that all models have acceptable performance in predicting the UCS, representing the admissible correlation between observed and predicted values and models' robustness. In the training step, the value of R 2 , the root mean square error, and the variance accounted factor for MVO-XGB are 0.9713, 1.5777, and 97.129. These values in testing phase are 0.9019, 2.6786, and 89.158. Therefore, the MVO-XGB model outperforms others, and the results demonstrate the ability of the MVO algorithm to determine the optimal value of XGB parameters.

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Use of oil palm shell as an aggregate in cement concrete: A review

Cited by 87 publications

References 114 publications

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

Durability of Lightweight Concrete Using Oil Palm Shell as Aggregates

Predicting the uniaxial compressive strength of oil palm shell lightweight aggregate concrete using artificial intelligence‐based algorithms

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