Indian Journal of Engineering & Materials Sciences

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Thermal and acoustic performance of cement fibreboard and bamboo buildings


Affiliations
1 Acoustics Instrumentation and Mechanical Systems Group, CSIR- Central Building Research Institute, Roorkee 247 667, India
2 Structural Engineering Group, CSIR- Central Building Research Institute, Roorkee 247 667, India

The present study evaluates the thermal and acoustic performance of building constructed from aerated concrete-cement fibreboards and bamboo composite. The thermal, humidity, ambient, and indoor temperature parameters are analyzed for a 24-hours cycle from April to May and December to January. The average temperature plot shows the maximum indoor temperature does not exceed 28-32 ºC for April to May and 12-16 ºC for December to January for both the buildings. Thermal admittance is observed as 7.3 W/m2K and 12 W/m2K for cement fibreboard and bamboo composite buildings respectively. Outdoor to indoor noise reduction (OINR) values at frequencies ranging from 80 Hz to 4000 Hz are noted and analysed. The maximum noise isolation provided by cement fibreboard and bamboo composite walls are found to be ~40 dBA and 35 dBA at 500 Hz. With proper ventilation and avoidance of direct sunlight in the room, a comfortable atmosphere can be achieved for these buildings
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  • Thermal and acoustic performance of cement fibreboard and bamboo buildings

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Authors

Siddharth Singh
Acoustics Instrumentation and Mechanical Systems Group, CSIR- Central Building Research Institute, Roorkee 247 667, India
Ajay Chourasia
Structural Engineering Group, CSIR- Central Building Research Institute, Roorkee 247 667, India
Ravindra Singh Bisht Bisht
Acoustics Instrumentation and Mechanical Systems Group, CSIR- Central Building Research Institute, Roorkee 247 667, India
Sameer Yadav
Acoustics Instrumentation and Mechanical Systems Group, CSIR- Central Building Research Institute, Roorkee 247 667, India

Abstract


The present study evaluates the thermal and acoustic performance of building constructed from aerated concrete-cement fibreboards and bamboo composite. The thermal, humidity, ambient, and indoor temperature parameters are analyzed for a 24-hours cycle from April to May and December to January. The average temperature plot shows the maximum indoor temperature does not exceed 28-32 ºC for April to May and 12-16 ºC for December to January for both the buildings. Thermal admittance is observed as 7.3 W/m2K and 12 W/m2K for cement fibreboard and bamboo composite buildings respectively. Outdoor to indoor noise reduction (OINR) values at frequencies ranging from 80 Hz to 4000 Hz are noted and analysed. The maximum noise isolation provided by cement fibreboard and bamboo composite walls are found to be ~40 dBA and 35 dBA at 500 Hz. With proper ventilation and avoidance of direct sunlight in the room, a comfortable atmosphere can be achieved for these buildings