Influence of palm oil fuel ash in concrete and a systematic comparison with widely accepted fly ash and slag: A step towards sustainable reuse of agro-waste ashes

Chinnu, S.N.; Minnu, S.N.; Bahurudeen, A.; Senthilkumar, R.

doi:10.1016/j.clema.2022.100122

Cited by 17 publications

(4 citation statements)

References 91 publications

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“…The PSA reduced the SCC's mass density and made the SCC's mass density containing 10% PSA smaller than the counterpart with 0% of PSA in each w/b variation. This behavior is shown in Figure 7, following the previous research, which stated that PSA caused decreased mass density [26]. The greater ratio of w/b caused a lower mass density of SCC [27], as are shown in Figures 8 and 9.…”

Section: Mass Density Test With Variations Of Sctsupporting

confidence: 80%

Influence of Steam Curing Temperature on the Characteristic of Self-Compacting Concrete Incorporating Palm Shell Ash

Nurjannah,

Muliawan,

Nurazizah

et al. 2024

Cantilever

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Self-Compacting Concrete (SCC) is proven as durable concrete and applied to constructions. In this paper, a study was conducted to analyze the influence of variations of steam curing temperature (SCT) and water/binder (w/b) ratio on the characteristics of SCC incorporating 10% Palm Shell Ash (PSA) as a partial substitution for cement mass. The SCT was arranged from 25 C to 80 C. The variation of w/b in the compositions of SCC was 0.325, 0.350, and 0.375. The results showed that using PSA, the variation of SCT and the w/b ratio influenced the workability of the fresh concrete. The PSA, SCT, and the w/b ratio affected the concrete compressive strength and mass density. The increased SCT caused a lighter density and greater compressive strength. However, the decreased compressive strength occurred due to an excessive SCT of 70 C and above. The SCT of 60 C, 10% PSA, and w/b ratio of 0.350 in the mixture produced the greatest compressive strength of 36.27 MPa at 28 days of age, while without SCT, the greatest compressive strength of 36.78 MPa was achieved at the age of 28 days containing 10% PSA and w/b ratio of 0.325. It indicated that the w/b ratio was more influential than the SCT on the increase of the SCC compressive strength.

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Section: Mass Density Test With Variations Of Sctsupporting

confidence: 80%

Influence of Steam Curing Temperature on the Characteristic of Self-Compacting Concrete Incorporating Palm Shell Ash

Nurjannah,

Muliawan,

Nurazizah

et al. 2024

Cantilever

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“…Substituting part of the cement with sugarcane bagasse ash (up to 10%) positively impacts the physical and mechanical properties of concrete, but the range from 20% to 30% is also acceptable and does not lead to significant losses in strength [23,26]. Palm oil fuel ash, when replacing part of the cement up to 10% [67][68][69][70], contributed to an increase in the strength characteristics and durability of concrete. The addition of ashes from sunflower and pumpkin seed husks [35] improved the compressive strength by 27.3% when used as a partial replacement of the binder, up to 15%.…”

Section: Figure 10 the Impact Of Ssha Content On The Water Absorption...mentioning

confidence: 99%

Influence of Sunflower Seed Husks Ash on the Structure Formation and Properties of Cement Concrete

Shcherban',

Stel'makh,

Beskopylny

et al. 2024

Civ Eng J

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The limitation of the application of non-renewable materials is one of the solutions to the problem of the sustainable evolution of civilization in the 21st century. Using additional binders in concrete obtained from plant waste will be economically and environmentally beneficial and will also allow us to move closer to achieving sustainable development goals. This study searches for rational composition components and a methodological approach regarding the technological characteristics to get the highest quality elements and prime concrete properties on the basis of sunflower seed husk ash (SSHA). Experimental concrete specimens were manufactured with partial Portland cement substitution with SSHA amounts ranging from 2% to 16% by weight in increments of 2%. This study focuses on investigating the density and workability of the concrete mixture, along with the compressive strength, concrete density, and water absorption. This article used granulometric, microscopic, and X-ray phase analysis methods. Including SSHA in all considered ranges reduces the slump in concrete mixtures. The optimal SSHA content in concrete is up to 12%. An 8% SSHA content has been found to deliver the most favorable mechanical characteristics of the concrete studied. The compressive strength of the investigated concrete has increased by 14.89%, and water absorption has decreased by 15.78%. Doi: 10.28991/CEJ-2024-010-05-08 Full Text: PDF

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“…There are also possible ways to increase the efficiency of the use of ash waste through their use not only as a filler, but also as an active mineral additive [ 9 ]. Known methods of using include the ash of agricultural waste in concrete as a pozzolana [ 10 ]. Many authors note that ash as a pozzolan in concrete shows the same effect as a natural pozzolan, which indicates its great potential for use.…”

Section: Introductionmentioning

confidence: 99%

The Use of Aluminosilicate Ash Microspheres from Waste Ash and Slag Mixtures in Gypsum-Lime Compositions

et al. 2023

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The article considered the issues of the modification of gypsum stone to improve its performance properties. The influence of mineral additives on the physical and mechanical characteristics of the modified gypsum composition is described. The composition of the gypsum mixture included slaked lime and an aluminosilicate additive in the form of ash microspheres. It was isolated from ash and slag waste from fuel power plants as a result of their enrichment. This made it possible to reduce the carbon content in the additive to 3%. Modified compositions of the gypsum composition are proposed. The binder was replaced with an aluminosilicate microsphere. Hydrated lime was used to activate it. Its content varied: 0, 2, 4, 6, 8 and 10% of the weight of the gypsum binder. Replacing the binder with an aluminosilicate product for the enrichment of ash and slag mixtures made it possible to improve the structure of the stone and increase its operational properties. The compressive strength of the gypsum stone was 9 MPa. This is more than 100% higher than the strength of the control composition of gypsum stone. Studies have confirmed the effectiveness of using an aluminosilicate additive—a product of enrichment of ash and slag mixtures. The use of an aluminosilicate component for the production of modified gypsum mixtures allows the saving of gypsum resources. Developed formulations of gypsum compositions using aluminosilicate microspheres and chemical additives provide the specified performance properties. This makes it possible to use them in the production of self-leveling floors, plastering and puttying works. Replacing traditional compositions with a new composition based on waste has a positive effect on the preservation of the natural environment and contributes to the formation of comfortable conditions for human habitation.

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Influence of palm oil fuel ash in concrete and a systematic comparison with widely accepted fly ash and slag: A step towards sustainable reuse of agro-waste ashes

Cited by 17 publications

References 91 publications

Influence of Steam Curing Temperature on the Characteristic of Self-Compacting Concrete Incorporating Palm Shell Ash

Influence of Steam Curing Temperature on the Characteristic of Self-Compacting Concrete Incorporating Palm Shell Ash

Influence of Sunflower Seed Husks Ash on the Structure Formation and Properties of Cement Concrete

The Use of Aluminosilicate Ash Microspheres from Waste Ash and Slag Mixtures in Gypsum-Lime Compositions

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