Thermal and mechanical characterization of panels made by cement mortar and sheep’s wool fibres

Cardinale, Tiziana; Arleo, Giuseppe; Bernardo, Franco; Feo, Andrea; Fazio, Piero De

doi:10.1016/j.egypro.2017.11.132

Cited by 25 publications

(18 citation statements)

References 5 publications

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“…They revealed that wool-reinforced composites showed lower compressive strength than the reference no wool cement composite, regardless of the content and length of fibres. Similar conclusions were presented by Cardinale et al [51]. In their research, the addition of sheep wool fibres was much smaller, 2%, 5%, and 7% per dry raw materials mass.…”

Section: Mechanical Behaviorsupporting

confidence: 89%

Wool-Reinforced Cement Based Composites

Jóźwiak–Niedźwiedzka

Fantilli

2020

Materials

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In this paper, an overview of the latest research activities in the field of cement-based composites incorporating sheep wool reinforcement is presented. First, the characteristics of this type of natural fibre are described. Then, the current use of sheep wool fibres in cement-based composites is discussed. The research problems regarding the properties of cement matrix composites reinforced with sheep wool are divided into four groups: thermal and acoustic properties, mechanical behavior, durability issues, and microstructure aspects. The latter two groups are analysed separately, because both durability and microstructure are of particular importance for future applications of wool reinforcement. Finally, the main directions of future researches are presented.

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Section: Mechanical Behaviorsupporting

confidence: 89%

Wool-Reinforced Cement Based Composites

Jóźwiak–Niedźwiedzka

Fantilli

2020

Materials

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“…Based on experimental results they stated that best performances are achieved with 2-3% content of sheep wool. Cardinale [32] evaluated the possible use of sheep wool fiber to increase thermal and mechanical performances on cement mortar panels. The aim was to optimize sheep wool percentage inside the panels to obtain best performances.…”

Section: Mechanical Properties Of Sheep Woolmentioning

confidence: 99%

Organized Framework of Main Possible Applications of Sheep Wool Fibers in Building Components

Parlato

Porto

2020

Sustainability

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Greasy sheep wool is currently considered a special waste for its high bacterial load, with expensive disposal costs for sheep breeders. For this reason, wool is often burned or buried, with serious consequences for the environment. On the other hand, sheep wool is well regarded as one of the most performative insulating natural fibers due to its thermo-hygrometric and acoustic properties. In the building sector, sheep wool meets the requirements of green building components because it is an eco-friendly material, there is a surplus of it, it is annually renewable, and totally recyclable. If used instead of common insulation materials (e.g., fiberglass, rock wool, polyurethane foam, polystyrene), sheep wool offers significant benefits for sustainability such as a reduction in the production costs for new insulating materials and in environmental pollution. Mechanical and physical properties of sheep wool investigated in previous studies were assessed and discussed with the aim of providing an organized framework of possible applications of wool fibers in building components. This paper highlights in detail aspects that have not yet been investigated enough to detect new potential uses of sheep wool fibers in rural buildings and the reuse of traditional ones.

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“…The apparatus used for thermal conductivity measurements was an heat flow meter in "single sample in a double configuration" (NETZSCH heat flow meter HFM 436/0/1) [15], placed in a conditioned laboratory at a temperature of 23 ± 2 °C and relative humidity 50 ± 5 %, to ensure observance of the test conditions required by the standard UNI EN 12664:2002 "Thermal performance of building and products -Determination of thermal resistance by means of guarded hot plate and heat flow meter methods -Dry and moist products of medium and low thermal resistance" [16]. The specimen is placed between two plates placed at two different temperatures (ΔT = 20 °C) and the average temperature of equilibrium of tests is set to 10 °C.…”

Section: Thermal and Mechanical Testsmentioning

confidence: 99%

Energy and Mechanical Characterization of Composite Materials for Building with Recycled PVC

Cardinale¹,

Sposato²,

Alba³

et al. 2019

IJES

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The diffusion of plastic materials had and still has a significant impact on the environment. Among these, PVC (polyvinylchloride) is certainly able to guarantee the best cost/performance ratio, high sustainability and absolute recyclability. In particular, this work refers to cement-based mortars with PVC compound used for electric cables sheathing. The aim was to verify the potential of a "new" mix-design in terms of energy efficiency and mechanical resistance of the finished products. Some mortar specimens were prepared using as basic components cement, water, sand and PVC as powder and granules. The plastic aggregate, in volumetric substitution of the sand, has been varied in proportions varying up to 50 % of the dry component. Different mixtures were prepared, all referred to a base one without PVC, to evaluate its influence on workability, thermal conductivity, compressive and flexural strength, capillary water absorption. Experimental results have shown that increasing the amount of PVC reduces density as well as compressive and flexural strength. However, PVC mortars show a greater resistance to capillary water absorption compared to the reference one, while the thermal conductivity values slightly decrease. This study is the basis for subsequent research based on further combinations of aggregates.

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Thermal and mechanical characterization of panels made by cement mortar and sheep’s wool fibres

Cited by 25 publications

References 5 publications

Wool-Reinforced Cement Based Composites

Wool-Reinforced Cement Based Composites

Organized Framework of Main Possible Applications of Sheep Wool Fibers in Building Components

Energy and Mechanical Characterization of Composite Materials for Building with Recycled PVC

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