Strength and microstructural analysis of concrete incorporating ash from sunflower seed shells combustion

Grubeša, Ivanka Netinger; Radeka, Miroslava; Malešev, Mirjana; Радоњанин, Властимир; Gojević, Anita; Siddique, Rafat

doi:10.1002/suco.201800036

Cited by 13 publications

(7 citation statements)

References 28 publications

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“…The hardened specimen was cured in a water bath and three cubes were tested for the 7th day test and the average value was taken. The pattern was followed for 14th day and 28th day tests also 19,20 . The graph represented below as Figure 2 shows the results obtained for the compression test.…”

Section: Methodsmentioning

confidence: 90%

Study on strength parameters of plain cement concrete added with tamarind kernel powder

Venkatraman

Rajamohan²

2020

Structural Concrete

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The quality of the construction material is required to be improved to enhance the strength and performance of the structure. From the earlier days, admixture assumes a crucial job in cement to improve the basic properties. Before knowing about the admixtures, good knowledge regarding concrete is required. In this work, an endeavor was made to contemplate the conceivable outcomes of utilizing tamarind kernel powder, a naturally available biowaste material which is a hydrocolloid in nature, as an admixture in concrete. The addition of tamarind kernel powder was varied from 0.25 to 1.25% in proportion to the weight of cement used. A huge amount of tamarind seed wastes are produced every year especially in India it is nearly 97,000 metric tons per year. In the absence of waste disposal, the utilization of tamarind seed for concrete improvement will be a great development. In this research article, tamarind kernel powder was added to fresh concrete and relevant tests were conducted on fresh and hardened concrete before and after the addition of tamarind kernel powder. Further, nondestructive tests were also carried out on concrete added with tamarind kernel powder. The concrete shows good enhancement in strength until the addition of 1% of tamarind kernel powder to the weight of cement. Moreover, the workability, mobility and compaction factor results obtained in this experiment show that the optimal addition of tamarind kernel powder does not affect the properties of fresh concrete. The tests on hardened concrete and results obtained from nondestructive testing methods confirm the same. Hence, this experimental work shows that the natural hydrocolloid, that is, tamarind kernel powder can be added to an amount of 1% to the weight of cement which shall not affect the other parameters of concrete but increases the strength considerably.

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Section: Methodsmentioning

confidence: 90%

Study on strength parameters of plain cement concrete added with tamarind kernel powder

Venkatraman

Rajamohan²

2020

Structural Concrete

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“…Finally, the filler fills the small pores between the fine powder particles and the cement particles according to the particle size distribution of the cement and the filler. All these effects influence the properties of the cement paste and thus the properties of the concrete/mortar . Many reports investigating the use of waste and by‐product materials as pozzolan in cement replacement exist in the literature .…”

Section: Introductionmentioning

confidence: 99%

“…All these effects influence the properties of the cement paste and thus the properties of the concrete/mortar. [14][15][16] Many reports investigating the use of waste and by-product materials as pozzolan in cement replacement exist in the literature. [17][18][19][20] It has been found that the use of the pozzolan as complementary cementitious materials provides a noticeable increase in the mechanical and properties of the mortar.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and durability properties of self‐compacting mortars containing binary and ternary mixes of fly ash and silica fume

Benli

2019

Structural Concrete

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In this paper, the results of experimental work on the strength and durability performances of self‐compacting mortars (SCMs) manufactured from silica fume (SF) and fly ash (FA) were presented. The cement was partially replaced with 5, 10, 15, 20, and 25% of FA and 5, 10, and 15% of SF as binary mixes. Also, ternary mixtures were prepared by the incorporation of FA and SF at different replacement dosages by weight. In total, 14 different combinations of mixes were studied at the ages of 7, 28, and 180 days. Prismatic samples of size 40 × 40 × 160 mm3 were produced and exposed to water curing to observe mechanical behavior of SCMs. The mechanical properties of SCMs were examined by the tests of compressive strength and flexural strength. Sorptivity, porosity, water absorption, and density were also measured. To evaluate fresh properties of SCMs, mini slump flow diameter and mini V‐funnel flow time tests were conducted. The results of the study reveal that increase in the dosage of FA increases SCMs flow but also reduce segregation resistance. The enhancement in flexural strength is the best in the binary mixes of SF10 and in binary mixes of FA. Ten percent replacement of FA shows the best flexural strength performance with a value of 10.21 MPa at the age of 180 days. Compressive and flexural strengths of mortars containing SF and FA reached up to about 86.14 and 10.50 MPa, respectively.

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“…Thus, the recycling of these crusts through the usage in concrete as cement materials aids significantly in producing an environmentally friendly concrete and decreases cement usage. Nevertheless, previous attempts have been made to reuse both walnut shells as coarse or fine aggregate 47 – 50 and sunflower ash in micro size 51 , 52 within concrete. However, no previous research used walnut shells ash and sunflower ash at nano size.…”

Section: Research Significancementioning

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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Strength and microstructural analysis of concrete incorporating ash from sunflower seed shells combustion

Cited by 13 publications

References 28 publications

Study on strength parameters of plain cement concrete added with tamarind kernel powder

Study on strength parameters of plain cement concrete added with tamarind kernel powder

Mechanical and durability properties of self‐compacting mortars containing binary and ternary mixes of fly ash and silica fume

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

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