MITIGATION OF NOISE USING CONCRETE BARRIER

Naveen G.M, Ichitha M. K, Ravi Kiran L, Ayushi G Jain

Abstract: Noise is a displeasing effect on human health that disrupts the activity of daily life. Noise pollution can cause annoyance and aggression, hypertension, high stress levels, tinnitus, hearing loss, sleep disturbances and other harmful effects. One of the major sources of noise is traffic density. Hence an attempt has been made to reduce noise level by studying the traffic density and noise range produced at different roads of Mysore city. The roads selected were based on sensitive zones such as hospitals, schools, colleges and court of Mysore city. The maximum noise produced due to traffic was noted and suggestions were given to reduce noise level. The concrete barrier with certain alterations in concrete mix can be a solution to achieve good acoustic performance. In this context, an experimental study was conducted to obtain data on performance of concrete barrier by using buffer rubber in concrete mix. Concrete mix was prepared in 1:1.5:3 proportion by using cement, sand and coarse aggregate with water/cement ratio of 0.55. The fine aggregate was replaced by varying percentage of rubber. The concrete panels were then subjected to strength and acoustic tests to ensure its effectiveness. The fine aggregate up to 35% replacement with compressive strength 19.6N/mm2achieved sound absorption capacity up to 27.5dB.

Keywords: Buffer rubber, Compressive strength, Noise, Mitigation

DOI: https://doi.org/10.15623/ijret.2017.0607017