Physico-Mechanical Properties of Bio-Based Bricks

Makomra, Valentin; Tapsia, Lionel Karga; Ndiwe, Bénoît; Kaoutoing, Maxime Dawoua; Konaï, Noël; Njom, Abel; Laynde, Tawe; Raïdandi, Danwé

doi:10.4236/msce.2022.104002

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…From a mechanical perspective, the results show that wheat fibres influence the flexural and compressive strengths. These results are in agreement with results from several authors who have shown that the length of fibres influences the mechanical strength of the building materials and increases with an increase in the fibre content [31,33,[70][71][72].…”

Section: Flexural Strengthsupporting

confidence: 93%

“…To highlight the mechanical behaviour of vegetable-fibre-reinforced clay materials, several studies have also been conducted on the compressive and flexural strength of different clay mixtures with and without fibres. These studies aim at investigating the use of compressed earth blocks reinforced with plant fibres and consider factors such as fibre length and addition rates [30,31]. Some studies have found that the addition of fibres in compressed earth blocks helps limit crack propagation [30].…”

Section: Of 16mentioning

confidence: 99%

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The Impact of Vegetable Fibres on the Shrinkage and Mechanical Properties of Cob Materials

Kabore,

Ouellet-Plamondon

2024

Materials

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This study examined the shrinkage rate and mechanical properties of cob samples. Cob is a natural building material composed of clay, water, and varying amounts of plant fibres. The red and beige cob materials in this study containing 3% and 6% wheat fibres were manufactured by hand with clay, bulk fibres (short and long fibres), and a 25% water ratio (water/clay) in order to make their manufacture and use on construction sites feasible and simple. The reference samples were mixed with clay, 25% water, and 0% wheat fibre. The mechanical properties were assessed through compression and flexural tests after 28 and 120 days. The results showed that the fibre addition decreased the bulk density of the composites from 1902 kg/m3 to 1264 kg/m3. The compressive strength increased from 1.8 MPa to 4.57 MPa for the red clay samples and from 1.65 MPa to 4.61 MPa for the beige clay samples at 28 days. The compressive strength of each mixture decreased slightly with age for the red and beige clay samples, respectively. Conversely, the flexural strength increased with age for the samples reinforced with 3% and 6% fibres. The results also showed that the cob samples can deform without breaking. Increasing the fibre content in the mix resulted in a significant reduction in the shrinkage rate and an increase in the mass loss rate during thermogravimetric analysis. This analysis showed a total mass loss of approximately 5.64%, 6.12%, and 44.87% for the red clay, beige clay, and fibres, respectively. An average volume shrinkage of 1% was observed for the samples with 6% fibre content. The cob discussed in this article can be used as a filling material. In large quantities, it can be made by hand, with feet protected by boots, or with the use of a mixer. The environmental benefits are considerable, as the raw materials are renewable, and the manufacturing process is less energy-intensive.

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Section: Flexural Strengthsupporting

confidence: 93%

Section: Of 16mentioning

confidence: 99%

The Impact of Vegetable Fibres on the Shrinkage and Mechanical Properties of Cob Materials

Kabore,

Ouellet-Plamondon

2024

Materials

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“…Instead of considering these materials as a waste without any added value, valorizing them through the exploitation of their properties and their salvaging in other industrial sectors constitute nowadays a real challenge for scientists. For example, physic-mechanical properties of bio-based bricks [1], mechanic and physical properties of particle board panels produced with horns sheaths [2], and African tree bark exudate extracts as bio hardeners of fully bio sourced thermoset tannin adhesives for wood panels [3] was studied. Our present study aims at taking both scientific and environmental steps into the said field.…”

Section: Introductionmentioning

confidence: 99%

Physical and Chemical Properties of Horns Sheaths Particles for the Manufacture of Composite Materials

Laynde,

Yaou,

Lionel

et al. 2024

MSCE

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Salvaged cow horns from slaughterhouses have been transformed into fine particles for a physical characterization that has led us to determine the humidity rate (2.34% ± 0.054%), the actual density situated between 0.586 g/cm 3 and 0.732 g/cm 3 , the swelling rate (12%), and one chemical characterization that permitted us to determine the rate of dry matters (97.05%), of mineral matters (2.5%), of protein matters (94.52%). From these weak values, it can easily be seen that cow horn case doesn't absorb much water and improve the mechanical characteristics of the composite; the high rate of protein shows that keratin which is the structural molecule favors its gripping as reinforcing element in the manufacturing of composite materials.

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A review on recent eco-friendly strategies to utilize rice straw in construction industry: pathways from bane to boon

Rajput

Gupta

Bansal

2022

Environ Sci Pollut Res

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Physico-Mechanical Properties of Bio-Based Bricks

Cited by 4 publications

References 2 publications

The Impact of Vegetable Fibres on the Shrinkage and Mechanical Properties of Cob Materials

The Impact of Vegetable Fibres on the Shrinkage and Mechanical Properties of Cob Materials

Physical and Chemical Properties of Horns Sheaths Particles for the Manufacture of Composite Materials

A review on recent eco-friendly strategies to utilize rice straw in construction industry: pathways from bane to boon

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