Effect of the incorporation of wood wool on thermo physical proprieties of sand mortars

Taoukil, Driss; Bouardi, Abdelmajid El; Ajzoul, T.; Ezbakhe, Hassan

doi:10.1007/s12205-012-1470-3

Cited by 31 publications

(19 citation statements)

References 11 publications

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“…To calculate the thermal di usivity, we used the approximate method presented by using the Degiovanni model based on the method of partial time [5,28,29]. e thermal di usivity of the sample is given as follows [29]: Advances in Materials Science and Engineering where e is the specimen thickness and t 1/3 , t 1/2 , t 2/3 , and t 5/6 are, respectively, the partial times for 1/3, 1/2, 2/3, and 5/6 of the maximum value of the temperature (Figure 10).…”

Section: E Ect Of Swm Dosage On the Ermal DI Usivity Of Lcmentioning

confidence: 99%

Experimental Study of New Insulation Lightweight Concrete Block Floor Based on Perlite Aggregate, Natural Sand, and Sand Obtained from Marble Waste

Alyousef

Benjeddou

Soussi

et al. 2019

Advances in Materials Science and Engineering

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The purpose of the present study is to recover marble waste and expanded perlite aggregate (EPA) for use as an additive to cementitious matrix building materials. The main goal is to produce a new insulation block floor from lightweight concrete (LC) by mixing sand from the waste marble crushing process (SWM), natural sand, and EPA. First, optimal mixture of natural sand, SWM, and EPA was determined for a given insulation LC. To this end, plate and cubic specimens were prepared by varying the volume proportion of SWM to natural sand in percentages of 0, 20, 40, 60, 80, and 100. Mechanical and physical properties such as the compressive strength, thermal conductivity, thermal diffusivity, specific heat capacity, and sound reduction index at different frequencies were investigated. Finally, a prototype of a new insulation lightweight block floor was manufactured from the optimal mixture of the studied LC. The results showed that the incorporation of SWM significantly improved the mechanical properties and the thermal insulation of LC compared to those of the natural sand. These results are promising and give the present insulation block floor the opportunity to be used in composite slabs.

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Section: E Ect Of Swm Dosage On the Ermal DI Usivity Of Lcmentioning

confidence: 99%

Experimental Study of New Insulation Lightweight Concrete Block Floor Based on Perlite Aggregate, Natural Sand, and Sand Obtained from Marble Waste

Alyousef

Benjeddou

Soussi

et al. 2019

Advances in Materials Science and Engineering

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“…The principle of the experimental measurement method is to emit a heat flux, for a few seconds by means of the lamp, on one face of the sample and then the thermal diffusivity is evaluated from the temperature variation of the non-irradiated face of sample [10]. Using Degiovanni model based on the method of part-time [11], the thermal diffusivity is given as follows: …”

Section: Thermal Diffusivity Measurementmentioning

confidence: 99%

“…Dividing heat capacity by the body's mass yields a specific heat capacity, which is no longer dependent on the amount of material but on the type of material and on the temperature. The specific heat is determined from measurements of the thermal conductivity and diffusivity by using the following relation [12]: CP = λexp ρ .α exp (11) …”

Section: Specific Heatmentioning

confidence: 99%

“…The specific heat of the specimens was determined by calculation using equation (11) that combines thermal conductivity, density and thermal diffusivity into one value conform to the requirements of NF EN ISO 7345. According to the results shown in Figure 8, the specific heat of specimens was increased with increasing rubber aggregates replacement and can reach a value of 1380 J/Kg.K for a percentage of 30%.…”

Section: Specific Heatmentioning

confidence: 99%

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Effect of Rubber Aggregates on the Thermophysical Properties of Self-Consolidating Concrete

Atef¹

2014

J Bioprocess Biotech

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In this work, our choice fell on the exploitation of rubber aggregates from used tires. In this context, an experimental study was conducted to provide more data on the effect of rubber aggregates on the thermophysical properties of self-consolidating concrete (SCC). To this end , four sets of rectangular specimens were prepared by varying the proportion of the rubber aggregates with percentages of 0%, 10%, 20% and 30% of the volume of gravel .Tests on hardened self-consolidating concrete rubber SCCR included measuring the thermal conductivity and the thermal diffusivity by the method of the boxes at steady and determining the specific heat . The results showed that the thermal conductivity and thermal diffusivity were decreased according to the increase of the percentage of rubber aggregates. This decrease was significantly improved thermal performance of the SCCR.

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“…This reinforcement leads to a reduction in the density and absorption of water [6]. In another study, Taoukil et al (2012) examined the effect of incorporation of wood wool on the thermo-physical properties of sand mortars with percentages ranging from 35 to 58%. They demonstrated that this incorporation decreases thermal conductivity, diffusivity, as well as compressive strength which makes is this material compatible as lightweight concrete [7].…”

Section: Introductionmentioning

confidence: 99%

Valorization of Waste in Sand Concrete Based on Plant Fibres

Rihia

Hebhoub

Kherraf

et al. 2019

Civil and Environmental Engineering Reports

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The introduction of treated plant fibres into sand concretes leads to a reduction in density, improved ductility and thermal conductivity, and makes sand concrete an environmentally friendly and ecological material. The recovery of waste in this type of material allows the production of new ecological and sustainable materials used either in the new construction or in the rehabilitation of old buildings. In this context, a comparative study was based on the valorisation of marble and ceramic waste as sand in sand concrete made from straw fibres. To carry out this study, we introduced these wastes at substitution rates of 10% and 20%, separated and mixed, and studied the development of the properties of these concretes (density, workability, air content, compressive strength and bending tensile strength) and their behaviour with respect to durability (capillary and immersion absorption and chloride penetration). The study shows that the recovery of this waste as sand in sand concrete based on straw fibres gives satisfactory results. The chemical resistance, thermal conductivity and microstructure are under study, the results of which will be the subject of another publication.

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Effect of the incorporation of wood wool on thermo physical proprieties of sand mortars

Cited by 31 publications

References 11 publications

Experimental Study of New Insulation Lightweight Concrete Block Floor Based on Perlite Aggregate, Natural Sand, and Sand Obtained from Marble Waste

Experimental Study of New Insulation Lightweight Concrete Block Floor Based on Perlite Aggregate, Natural Sand, and Sand Obtained from Marble Waste

Effect of Rubber Aggregates on the Thermophysical Properties of Self-Consolidating Concrete

Valorization of Waste in Sand Concrete Based on Plant Fibres

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