Physical and mechanical properties of cement containing regional hazelnut shell ash wastes

Baran, Yasemin; Gökçe, Haşan; Durmaz, Malik

doi:10.1016/j.jclepro.2020.120965

Cited by 30 publications

(17 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their study found that higher nutshell ratios led to increased hardness, where pistachios showed the best results among other nutshells. Previously, Baran et al [68] declared that an up to 5% replacement of cement with hazelnut shells could meet the necessary standards (EN 197-1) [69] for compressive strength. A higher ratio of finer particles had a better influence on increasing compressive strength due to the increased interactions among these particles and the surrounding matrix.…”

Section: Nutshell Wastementioning

confidence: 99%

Recent Advances in the Application of Agricultural Waste in Construction

Khalife,

Sabouri,

Kaveh

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

On a global scale, millions of tons of diverse agricultural residues are generated annually. Most of these wastes are burned or dumped in landfills, which causes environmental pollution. Addressing environmental issues arising from agricultural waste materials, in addition to mitigating heating and cooling expenses in the construction sector, is an interesting challenge for researchers. The utilization of agricultural wastes in different parts of construction is producing positive findings day by day, and investigating research in this field is a curiosity for researchers. This short study reviewed the most recent achievements in using agricultural wastes as a substitute or additive material for construction. Using these wastes as aggregate, ash (as a supplementary for cement), or fibers for foam concrete, insulation materials, etc. has been reviewed. This review has focused on very recent published papers. Several studies have demonstrated the effective influences of agro-waste materials in construction, like retaining the compressive strength (155 MPa) of concrete at standard levels and reducing heat losses in buildings (69% energy savings for brick insulated using wheat straw), as well as sound insulation. The use of agro-waste materials for insulation positively improved thermal conductivity, costs, and energy savings. However, some wastes did not provide a high added value, which shows that more investigations still need be performed to fill this gap in the research. Considering the global scale of agricultural waste generation and the potential benefits to both the environment and construction industry, continued research in this area is essential.

show abstract

Section: Nutshell Wastementioning

confidence: 99%

Recent Advances in the Application of Agricultural Waste in Construction

Khalife,

Sabouri,

Kaveh

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Different studies highlighted the possibility to use hazelnut shells as reinforcing and composing ingredients in some materials [114][115][116][117].…”

Section: Hazelnut Shellmentioning

confidence: 99%

Recent Innovations on the Reuse of Almond and Hazelnut By-Products: A Review

Ollani,

Peano,

Sottile

2024

Sustainability

View full text Add to dashboard Cite

Nuts consumption has increased significantly in the last 10 years, especially driven by the stimulated awareness of their possible beneficial health effects. Increased nuts consumption is linked to an obvious accumulation of by-products and waste. With the view of the circular economy, the aim of this review is to analyse the recent and innovative approaches able to valorise the by-products derived from almonds and hazelnuts, two important nut products of the Italian scene, with historical and traditional importance. The most important solutions are concerned with reuse of almond hull, shell, skin, oil cake, and hazelnut shell; skin and oil cake are often considered waste or by-products. Many interesting implications in the feed and food sectors have been detected in the last ten years, aimed at designing innovative materials developed from by-products and extraction of bioactive molecules for different purposes. The perspective chosen to discuss the topic is related to the sustainability of these processes, in terms of both the environment and economy. The circular economy supports a zero-waste approach, which should not also be meant as a zero-cost process in terms of the level of technology that has been partially developed.

show abstract

“…The approximate cost of HNS can be given as 25% of polypropylene (PP) and 10% of styrene-b-(ethylene-cobutylene)-b-styrene (SEBS). HNS can be used for various applications such as energy, 4,5 biofuel production, 6 active carbon production, 7,8 adsorption, 9,10 waste water treatment, 11 civil engineering applications, 12,13 and polymeric composites. [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] In all these applications generally, it is mechanically powderized in various sizes.…”

Section: Introductionmentioning

confidence: 99%

Bio-based sustainable composites from hazelnut shell and PP/SEBS blends

Cetin

Ipek

Fidan

et al. 2022

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

In this study, waste hazelnut shells (HNS) were powderized and used as the filler for the fabrication of sustainable polymeric composites. HNS based composites can be used for many applications because of their tunable intrinsic brown color for various indoor and outdoor applications including decking applications and furniture that require a natural esthetic appearance. Polypropylene (PP), styrene-b-(ethylene-co-butylene)-b-styrene (SEBS), and 50/50 PP/SEBS blends were used as the polymeric matrixes. HNS concentration was set to 2.5, 5, and 10 wt%. PP/SEBS blend and HNS filled granules were prepared by melt mixing in an extruder. Following that polymeric films were fabricated from the granules by compression molding. The morphological, structural, thermal, mechanical, contact angle, water absorption analyses were performed in order to characterize the composites. Matrix type and filler concentration were found significant for the properties. PP/SEBS blends showed homogeneous morphology. At low concentrations, fillers were well-dispersed. On the other hand, at 10 wt% HNS loading agglomerations were observed and mechanical properties showed a noticeable drop. PP-based composites showed the highest tensile strength and elastic modulus with the lowest tensile strain. SEBS-based composites showed the lowest tensile strength and elastic modulus with the highest tensile strain. PP/SEBS composites showed mechanical properties between PP and SEBS. The incorporation of SEBS into PP increased the flexibility of the composites and resulted in relatively higher strain at break.

show abstract

Physical and mechanical properties of cement containing regional hazelnut shell ash wastes

Cited by 30 publications

References 37 publications

Recent Advances in the Application of Agricultural Waste in Construction

Recent Advances in the Application of Agricultural Waste in Construction

Recent Innovations on the Reuse of Almond and Hazelnut By-Products: A Review

Bio-based sustainable composites from hazelnut shell and PP/SEBS blends

Contact Info

Product

Resources

About