A novel epoxy-based composite with eggshell, PVC sawdust, wood sawdust and vermiculite: An investigation on radiation absorption and various engineering properties

Sevinç, Ahmet Hayrullah; Durgun, Muhammed Yasin

doi:10.1016/j.conbuildmat.2021.123985

Cited by 13 publications

(6 citation statements)

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“…Also of the essence is the chemical bonding of the matrix to the surface of the applied fillers [ 23 ]. In the literature, there are some publications reporting a lower strength of composites containing vermiculite [ 24 ]. On the other hand, the application of glass fillers with coating ensures good adhesion to the matrix, resulting in good mechanical properties [ 25 ].…”

Section: Resultsmentioning

confidence: 99%

An Approach to Testing Antivandal Composite Materials as a Function of Their Thickness and Striker Shape—A Case Study

Irzmańska,

Mizera,

Litwicka

et al. 2024

Polymers

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Our research material comprised antivandal fire-retardant hybrid composites modified with inorganic and organic fillers intended for application in public transport vehicles. This paper presents an approach to studying their impact strength as a function of the composite thickness (3 to 6 mm) and striker shape (hemispherical, semicylindrical, wedge-shaped) used in the experimental stand. Group A composites, made of single fabric layers (n = 5), were thinner and their impact strength was lower by 73% than that for Group B composites made of double fabric layers. Study results show an almost threefold improvement in impact strength for a thickness increase of as little as 0.3 mm. Statistical analysis (the Shapiro–Wilk test, p > 0.05) did not show any significant differences in the quantitative evaluation of changes (n = 3) on the surface of the examined materials caused by impacts with strikers of different shapes. In turn, a linear correlation (Shapiro-Wilk test, W = 0.0857, p = 0.022) was found between impact strength and the thickness of the studied materials. It was observed that appropriate arrangement of fabrics and powder fillers can lead to a different distribution of forces and energy absorbed by the tested material. A lower impact strength was observed for the composite which had powder fillers in its composition, which caused the formation of microvoids in the structure of the material and thus led to a weakening in their strength properties. An effect of the placement of the glass fabric layer in the composite on the results was also observed. Moreover, SEM evaluation of the composites revealed their layered structure and the impregnation of woven fabrics with resin.

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Section: Resultsmentioning

confidence: 99%

An Approach to Testing Antivandal Composite Materials as a Function of Their Thickness and Striker Shape—A Case Study

Irzmańska,

Mizera,

Litwicka

et al. 2024

Polymers

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“…Recently, a novel composite with different ratios of PVC and clay was investigated to strengthen the mechanical properties of concrete, and the results showed an improvement in cement strength, and no decrease in freshness and mechanical properties of cement was observed [ 196 ]. In another investigation, Sevinç and Durgun produced a new composite by adding PVC and vermiculite to epoxy resin, which had interesting properties such as reducing thermal conductivity coefficient and reducing water absorption of the produced composite, which are two important parameters in construction applications [ 197 ].…”

Section: Applications Of Pvc-clay Composite and Nanocompositementioning

confidence: 99%

Clay-reinforced PVC composites and nanocomposites

Abdollahi Boraei,

Bakhshandeh,

Mohammadzadeh

et al. 2024

Heliyon

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“…The recent work also proved that eggshells can be used as radiation shielding. The authors observed that composites composed of eggshells absorbed approximately 76% radiation at 59.9 keV [33]. Saldanha et al investigated the environmental impact of commercially available limes and eggshell limes using life-cycle assessments for soil stabilization, concluding that eggshell limes have good physical and mineralogical characteristics and can be satisfactorily used for soil stabilization [34].…”

Section: Introductionmentioning

confidence: 99%

Use of Various Industrial and Eggshell Wastes for the Sustainable Construction Sector

Aydın

2024

Politeknik Dergisi

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The alternative composites’ production alleviates the serious problem generated by global warming. Methods to reduce the amount of cement used in concrete production, for example, are being investigated to determine how to reduce carbon dioxide emissions in many applications. Egg shells and various industrial wastes, which are recommended to use in the construction sector at an appropriately high rate, also cause serious environmental damage. Bottom ash (BA) and marble powder (MP) wastes are used today in civil engineering applications. In addition, it is important to increase the use of eggshells due to their rich calcium carbonate content. In this work, BA and MP wastes were blended with eggshells to produce cement paste composites. Two different sets of composites were prepared during this study. The composites were prepared with cement (80%), BA (20%), and MP (20%) wastes by weight with 0.3%, 0.75%, 1.5%, and 2.5% eggshell waste. The fresh (flow table), physical (dry unit mass, apparent specific gravity, and porosity), mechanical (unconfined compressive strength and flexural strength), and durability (water absorption, seawater resistance) tests were conducted. According to the experimental results, the composites can be classified as lightweight construction materials. The test results showed that 0.75% eggshell by weight of cement in bottom ash and marble powder can be used as an optimum value for better performance. The bottom ash mixtures groups are higher water absorption and porosity values when referring to the marble powder mixture groups. The highest compressive strength value was found at 56.03 MPa in the MP mixture group and 52.79 MPa in the BA mixture groups with these optimum eggshell combinations at 56 days. The MP mixture group showed better resistance to seawater when referring to the bottom ash blended mixtures. Laboratory-produced composites are possible candidates for cost-effective and environmentally friendly building materials. The eggshells have a promising alternative binder for concrete in the near future and they are utilized together with industrial wastes such as BA and MP in sustainable concrete construction.

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A novel epoxy-based composite with eggshell, PVC sawdust, wood sawdust and vermiculite: An investigation on radiation absorption and various engineering properties

Cited by 13 publications

References 85 publications

An Approach to Testing Antivandal Composite Materials as a Function of Their Thickness and Striker Shape—A Case Study

An Approach to Testing Antivandal Composite Materials as a Function of Their Thickness and Striker Shape—A Case Study

Clay-reinforced PVC composites and nanocomposites

Use of Various Industrial and Eggshell Wastes for the Sustainable Construction Sector

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