The Impact of a Large amount of Ultra-fine Sunflower Ash With/without Polypropylene Fiber on the Characteristics of Sustainable Self-compacting Concrete

Saleh, Rawaa Dheyaa; Hilal, Nahla; Sor, Nadhim Hamah

doi:10.1007/s40996-022-00845-6

Cited by 14 publications

(4 citation statements)

References 32 publications

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“…Analyzing the results obtained in the study, it should be noted that if the rational recipe identified during the work is followed, it is possible to obtain concrete with a high-quality structure. The obtained effect can be explained using the following theses: Firstly, the modifying additive in the form of sunflower seed husk ash acts effectively in the process of structure formation and the formation of concrete properties and allows the creation of additional crystallization centers around which the concrete structure is formed, thereby manifesting the homogeneity of the distribution of properties in the mass of cement conglomerate [18,26,[71][72][73][74]. The increase in strength characteristics is determined by an increase in the mechanical properties of concrete, obtaining a structure with a denser packing of particles, a high degree of homogeneity, and the possibility of qualitative improvement of all properties and characteristics of concrete, subject to compliance with rational recipes and technological parameters [53,75,76].…”

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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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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“…Use of LPPF led to delayed development of micro-cracks inside the matrix and consequently increased the FS. It found that improvement in FS and STS by utilizing the LPDF is somewhat less than with other types of fiber [22,25], which may be due to fewer bond properties of the LPDF besides inadequate paste for the fibers that are required for transferring stress from the matrix to the fibers by bonding [41]. Also, there is a quadratic formula that correlates the FS, (the FS for any mix/the FS for R0 mix), with LPDF's ratio of R 2 0.922 as observed in figure 15.…”

Section: Flexural Strengthmentioning

confidence: 99%

The behavior of sustainable self-compacting concrete reinforced with low-density waste Polyethylene fiber

Sor

Ali

Vali

et al. 2022

Mater. Res. Express

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Sustainable concrete production and recycling the construction wastes are of utmost importance for today’s sustainable urban development. In this study, low-density polyethylene waste was recycled in the form of fibers (LDPF) to produce eco-friendly fiber-reinforced sustainable self-compacting concrete (SCC). The content of LDPF ranged from 0.5% to 3.5% at a raise of 0.5% of the mix’s volume. The SCC’s features in fresh and hardened states were tested. The slump flow diameter, T500, V-funnel, and L-box ratio were measured for the fresh properties. The compressive, splitting tensile and flexural strengths were tested at the age of 28 days. However, the outcomes indicated that LPDF had some negative effect on the workability features, but all the results of SCC mixtures were within the standard limitations of SCC except that related to the L-box, which satisfied the standards up to 2% of LDPF. However, the incorporation of LDPF enhanced the mechanical properties, especially the flexural strength. The optimum ratio for the LPDF was 2%, which satisfies the required workability and the highest strength with modulus of elasticity. The thermal conductivity decreased with increasing LDPF content in the SCC mixtures.

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“…In addition, the lightweight aggregate has the ability to provide non-continuous voids inside the hardened concrete and, therefore, leads to a reduction of the density. However, the usage of Polyvinyl chloride (PVC) as a plastic waste material in the recycling process is recognized as a good solution because of the economic cost and impervious characteristics of PVC 5 – 9 . An efficient way for disposing of PVC is through the grinding of plastic waste into small particles in order to replace coarse or fine aggregates within concrete mixing.…”

Section: Introductionmentioning

confidence: 99%

The influence of nanosunflower ash and nanowalnut shell ash on sustainable lightweight self-compacting concrete characteristics

Hilal,

Hamah Sor,

Hadzima-Nyarko

et al. 2024

Sci Rep

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The absence of biodegradability exhibited by plastics is a matter of significant concern among environmentalists and scientists on a global scale. Therefore, it is essential to figure out potential pathways for the use of recycled plastics. The prospective applications of its utilisation in concrete are noteworthy. The use of recycled plastic into concrete, either as a partial or complete substitution for natural aggregates, addresses the issue of its proper disposal besides contributing to the preservation of natural aggregate resources. Furthermore, the use of agricultural wastes has been regarded as a very promising waste-based substance in the industry of concrete manufacturing, with the aim of fostering the creation of an environmentally sustainable construction material. This paper illustrates the impact of nano sunflower ash (NSFA) and nano walnut shells ash (NWSA) on durability (compressive strength and density after exposure to 800 °C and sulphate attack), mechanical properties (flexural, splitting tensile and compressive strength) and fresh characteristics (slump flow diameter, T50, V-funnel flow time, L-box height ratio, segregation resistance and density) of lightweight self-compacting concrete (LWSCC). The waste walnut shells and local Iraqi sunflower were calcinated at 700 ± 50 °C for 2 h and milled for 3 h using ball milling for producing NSFA and NWSA. The ball milling succeeded in reducing the particle size lower than 75 nm for NSFA and NWSA. The preparation of seven LWSCC concrete mixes was carried out to obtain a control mix, three mixtures were created using 10%, 20% and 30% NWSA, and the other three mixtures included 10%, 20% and 30% NSFA. The normal weight coarse aggregates were substituted by the plastic waste lightweight coarse aggregate with a ratio of 75%. The fresh LWSCC passing capacity, segregation resistance, and filling capability were evaluated. The hardened characteristics of LWSCC were evaluated by determining the flexural and splitting tensile strength at 7, 14 and 28 days and the compressive strength was measured at 7, 14, 28 and 60 days. Dry density and compressive strength were measured after exposing mixes to a temperature of 800 °C for 3 h and immersed in 10% magnesium sulphate attack. The results demonstrated that the LWSCC mechanical characteristics were reduced when the percentages of NWSA and NSFA increased, except for 10% NWSA substitution ratio which had an increase in splitting tensile strength test and similar flexural strength test to the control mixture. A minor change in mechanical characteristics was observed within the results of LWSCC dry density and compressive strength incorporating various NSFA and NWSA` contents after exposing to temperature 800 °C and immersed in 10% magnesium sulphate attack. Furthermore, according to the findings, it is possible to use a combination of materials consisting of 10–20% NSFA and 10–20% NWSA to produce LWSCC.

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The Impact of a Large amount of Ultra-fine Sunflower Ash With/without Polypropylene Fiber on the Characteristics of Sustainable Self-compacting Concrete

Cited by 14 publications

References 32 publications

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

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

The behavior of sustainable self-compacting concrete reinforced with low-density waste Polyethylene fiber

The influence of nanosunflower ash and nanowalnut shell ash on sustainable lightweight self-compacting concrete characteristics

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