Performance behaviour of agro-waste based gypsum hollow blocks for partition walls

Crop residue management is a massive problem in the agriculture sector. Agricultural waste in the form of stubble which is usually burnt in the farm fields, causes severe air pollution and poses a threat to the environment. The present study investigates the addition of agro-waste (rice straw) in gy...

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Bibliographic Details
Published in:Scientific reports 2022-02, Vol.12 (1), p.3204-3204, Article 3204
Main Authors: Singh, Siddharth, Maiti, Soumitra, Bisht, Ravindra Singh, Balam, Nagesh Babu, Solanki, Rakesh, Chourasia, Ajay, Panigrahi, Soraj Kumar
Format: Article
Language:English
Subjects:
639/166
639/301/1023
639/301/1023/303
Agricultural wastes
Agriculture
Air pollution
Calcium Sulfate
Compressive Strength
Crop management
Crop residues
Gypsum
Heat conductivity
Humanities and Social Sciences
multidisciplinary
Noise reduction
Oryza
Rice
Rice straw
Science
Science (multidisciplinary)
Sound
Straw
Stubble
Thermal Conductivity
Thermal insulation
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Summary:Crop residue management is a massive problem in the agriculture sector. Agricultural waste in the form of stubble which is usually burnt in the farm fields, causes severe air pollution and poses a threat to the environment. The present study investigates the addition of agro-waste (rice straw) in gypsum hollow-core blocks for partition walls. Various compositions of agro-waste-based gypsum samples have been studied for compressive strength, thermal, sound absorption, sound transmission loss, and fire-resistant properties. The addition of rice straw in gypsum reduces the density and compressive strength of the test sample, thus making it lightweight for non-load bearing wall application. The thermal conductivity of the rice straw added gypsum samples show a decrease in thermal conductivity from 0.2 to 0.11 W/m K. Acoustic properties viz., noise reduction coefficient (NRC) increases from 25 to 45% with increase in rice straw addition and a decreasing trend in sound transmission class (STC) from 37 to 28 dB. The fire-resistant properties viz., surface spread of flame, and fire propagation index test have shown good fire-resistant properties. The agro-waste-based hollow gypsum blocks may be used as a promising material for drywall partitions owing to its thermal insulation, low density, good acoustic and fire-resistant properties.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-07057-y