Elevated temperature and performance behaviour of rice straw as waste bio-mass based foamed gypsum hollow blocks

Singh, Siddharth; Dalbehera, Mickey Mecon; Kumar, Ashok; Maiti, Soumitra; Balam, Nagesh Babu; Bisht, Ravindra Singh; Panigrahi, Soraj Kumar

doi:10.1016/j.jobe.2023.106220

Cited by 6 publications

(3 citation statements)

References 31 publications

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“…Additionally, the surface of the cellulosic waste may not fully adhere to the gypsum matrix, which can generate weak spots in the final composite material. Finally, the cellulosic waste could hold a high level of moisture, which can reduce the mechanical strength due to a weakening of the intermolecular bonds [9,12,18]. Morales-Conde et al [48] have provided support for our concerns.…”

Section: Mechanical Propertiesmentioning

confidence: 75%

“…Taking into account the amount of CO 2 fixed during the carbonation of lime, the CO 2 emission rate is estimated to be between 335 and 415 kg/t [13]. Therefore, some researchers have pointed to the use of gypsum in the production of biobased composites because it is the least polluting building material due to its low energy consumption during production [18,19]. An amount of 140 kg of CO 2 is produced during the production of one ton of natural gypsum.…”

Section: Introductionmentioning

confidence: 99%

“…In terms of thermal behavior, the lowest thermal conductivity is the criterion for lowering building energy consumption. Studies have suggested insulation materials and demonstrated the benefits of natural waste/fibers such as date palm fibers [14], cellulose fibers [25,26], wood waste [7,27], wheat straw [28], Posidonia oceanica fibers [29], rice straw [18], and Sargassum muticum [30].…”

Section: Introductionmentioning

confidence: 99%

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Advancing the Circular Economy: Reusing Hybrid Bio-Waste-Based Gypsum for Sustainable Building Insulation

Balti,

Boudenne,

Belayachi

et al. 2023

Buildings

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Finding eco-friendly products that are beneficial to the environment and serve as tools for sustainable development is a contemporary challenge. This work illustrates the recovery of bio-waste-based materials, which not only improve the hygrothermal properties of gypsum but also promote the paper and wood recycling processes in a circular economy approach. The samples were subjected to tests for density, water absorption, ultrasonic pulse velocity, flexural strength, compressive strength, and thermophysical property characterization. A statistical analysis of variance was used to study the impact of waste on the physico-mechanical behavior of gypsum, leading to the development of predictive models that can be used to predict and optimize the performance of bio-composites in various applications. The results revealed a reduction in mechanical strength with the addition of waste, but the samples still exhibit superior insulation properties, surpassing commonly used standard boards. By adding ouate and wood wastes to a mass of 20% in its natural state, the gypsum becomes lighter and acts as a better insulator with a reduced density, thermal conductivity, and ultrasound velocity of up to 50%, 57%, and 83%, respectively. These findings show the significant implication of reducing environmental impacts while contributing to the promotion of sustainable building practices, both in new construction projects and in building renovations.

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Section: Mechanical Propertiesmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Advancing the Circular Economy: Reusing Hybrid Bio-Waste-Based Gypsum for Sustainable Building Insulation

Balti,

Boudenne,

Belayachi

et al. 2023

Buildings

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Valorization Strategies for Agriculture Residue: An Overview

Joshi,

Yadav,

Yadav

et al. 2024

Waste as a Resource

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Change in Microstructure, Mechanical Strength, Fire Resistance, and Radiation Attenuation Properties of Gypsum Plaster with Boric Acid

Arnavutoglu,

Arbag,

Koyuncu

2024

Arab J Sci Eng

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In this study, the effect of boric acid addition on the microstructure of gypsum plaster was investigated to determine an environmentally friendly gypsum additive that may enhance mechanical strength, fire resistance, and X-ray radiation attenuation properties. The mechanical strengths of bare gypsum and boric acid-added (0–0.5% by weight with respect to gypsum amount) gypsum plasters were evaluated in terms of compressive and bending strengths. The effects of the different addition procedures of boric acid (0.1% by wt.) on the fire resistance of the gypsum plasterboard were also evaluated. X-ray radiation attenuation properties of boric acid-added (0.1% by wt.) gypsum plasterboard were investigated as well. XRD, ATR-FTIR, Helium pycnometer, N2 adsorption–desorption, and SEM analysis were performed to determine the microstructural properties of gypsum plaster. XRD and ATR-FTIR analysis revealed that boric acid did not change the calcium sulfate dihydrate structure of gypsum plaster. Whereas, Helium pycnometer, N2 adsorption–desorption, and SEM analysis showed that the physical properties of gypsum changed with an increase in pore volume, skeletal density, and particle size after boric acid addition. The increase in the pore volume and particle size decreased the mechanical strength of gypsum. However, boric acid addition on the gypsum plaster plate, especially using the spraying method, enhanced the fire resistance of gypsum. Additionally, boric acid slightly enhanced the X-ray radiation attenuation properties (0.7%) of the gypsum plasterboard.

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Elevated temperature and performance behaviour of rice straw as waste bio-mass based foamed gypsum hollow blocks

Cited by 6 publications

References 31 publications

Advancing the Circular Economy: Reusing Hybrid Bio-Waste-Based Gypsum for Sustainable Building Insulation

Advancing the Circular Economy: Reusing Hybrid Bio-Waste-Based Gypsum for Sustainable Building Insulation

Valorization Strategies for Agriculture Residue: An Overview

Change in Microstructure, Mechanical Strength, Fire Resistance, and Radiation Attenuation Properties of Gypsum Plaster with Boric Acid

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