Production of sustainable concrete using sawdust

El-Nadoury, Wegdan W.

doi:10.34910/mce.105.7

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…Add water to all mixed dry ingredients in accordance with the adopted proportion [2]. It should be borne in mind that the water necessary for the recipe is the water needed by the concrete mix and the water that will be absorbed by the sawdust [19]. The latter amount has not been presented in the available literature so far.…”

Section: Manufacturing Methodsmentioning

confidence: 99%

Application of sawdust concrete in construction

Kropidłowska

2022

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Sawdust concrete is a type of lightweight concrete in which some of the mineral aggregate is replaced by sawdust - a by-product of wood processing. It is not a new material, but its potential is not utilised to its full degree. Taking into account the most important advantages of sawdust concrete - lower density and greater thermal and acoustic insulation than ordinary concrete - it is worth to consider the possibilities of its usage in construction wider than currently . In order to present the properties of sawdust concrete, the review of contemporary technical literature has been performed. For the production of sawdust concretes mineralized sawdust from various types of trees, ordinary cements, mineral aggregates and water, are used. The usage of additives and admixtures is also allowed. The properties of the finished sawdust concrete are mainly influenced by the proportion of its components, especially the amount of fine aggregates replaced by sawdust. The construction products made of sawdust concrete are characterized by a low coefficient of thermal conductivity λ and soundproofing properties. In bending tests, a simply supported sawdust concrete beam behaves similar to a regular concrete beam, cracks first appear in the tension zone. Tensile strength, compressive strength and Young's modulus of sawdust concrete products depend on the proportion of components and the method of sawdust preparation before applying in the sawdust concrete-mix. Compared to ordinary concrete, the obtained values for sawdust concrete are lower, but partially fall within the ranges for the lower classes of ordinary concrete. There are several possible applications of sawdust concrete in construction. One of the perspectives is to use it to build walls in buildings that require soundproofing between rooms, or to replace wood with it when renovating old buildings. However, further tests of sawdust concrete are needed in terms of the most favourable composition for its mechanical properties, and to define the standards according to which sawdust concrete elements should be produced.

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Section: Manufacturing Methodsmentioning

confidence: 99%

Application of sawdust concrete in construction

Kropidłowska

2022

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Strength Performance of Different Mortars Doped Using Olive Stones as Lightweight Aggregate

et al. 2022

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The amount of ground olive stone available in Spain surpasses the needs of the construction industry for lightweight aggregate. The objective herein is to generate a material, lightweight mortar, with different percentages of ground olive stone, and then evaluate the mechanical performance and viability of these materials for the manufacture of lightweight elements used in the construction sector. To this end, an experiment was designed with nine different dosages of ground olive stone and three types of cement. In all, 378 test pieces were produced to assess the material, its handling while fresh, and its performance. Based on an analysis of consistency, density, compressive strength, and flexural strength, we were able to determine how much ground olive stone can be successfully incorporated into the material: 30% ground olive stone achieved a decrease in density of 15% compared to mortar without ground olive stone. The compressive strength of the different dosages studied remained above 70% of that of the mortar without ground olive stone. Bending behavior was more severely compromised, the values being around 50%. Cements with a more robust strength performance proved capable of assimilating a higher percentage of ground olive stone. This study shows the technical viability of the materials produced.

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Production of sustainable concrete using sawdust

Cited by 2 publications

References 27 publications

Application of sawdust concrete in construction

Application of sawdust concrete in construction

Strength Performance of Different Mortars Doped Using Olive Stones as Lightweight Aggregate

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