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All Journal ASEAN Journal of Community Engagement Advance Sustainable Science, Engineering and Technology (ASSET)
Khairulzan Yahya, Khairulzan
Faculty of Civil Engineering,Universiti Teknologi Malaysia, 81310 UTM Johor Bahru
Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Public Health Social Sciences Other

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‘Serene Classroom’ Minimizes Noise for More Conducive Learning Haron, Zaiton; Yahya, Khairulzan; Darus, Nadirah; Mohd Yussup, Rafidah; Awang, Abdullah Zawawi; Hussien, Norelyza; Mazlan, Ain Naadia; Zakaria, Rozana; Ismail, Mohammad; Amir Nizam, Noramera Nabila; A Kassim, Ahmad Syakir Farhan; Malek, Nur Syalyana; Rifki, Rifa Rafida; Kamaludin, Helmi; Yaakob, Syamsul Hafiz; Haron, Zaliza; Sheikh Ahmad, Sheikh Izat Azhar
ASEAN Journal of Community Engagement Vol. 5, No. 1
Publisher : UI Scholars Hub

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Abstract

Noise pollution can be categorized as a danger in silence. In school, noise pollution inhibits the focus of learning, impairs learning and cognitive development, for example, students' skills to think and understand both oral and written comprehension may be hampered by noise. Many schools in Malaysia experience excessive noise pollution as their locations are very near busy roads. This will be one factor that hinders the implementation of the education system in producing holistic students in order to prepare for the 4IR era. Knowing the importance of this problem, a group of researchers from UTM GREENPrompt, School of Civil Engineering, Universiti Teknologi Malaysia together with industry partners have built a special class called 'Serene Classroom' through a community project to overcome this problem. A classroom on the second floor of Sekolah Kebangsaan Kampong Pasir, Johor Bahru that has traffic noise exposure from the Skudai-Johor Bahru highway was selected for this purpose. The community project is in collaboration with the Johor State Education Department, Ministry of Education Malaysia and industrial partners, such as Vibrant Echo Company, Sanjung Sempurna Sdn. Bhd. and DZAZ Collection. The implementation of the project, the lessons learned from the project and challenges for the implementation are discussed. Technically, Serene classrooms significantly reduce the level of noise pollution for more conducive learning and have received better perceptions from students and teachers. Therefore, hopefully more ‘Serene Classroom’ community projects can be implemented in schools, especially in urban areas affected by high noise levels as a way to reduce the renovation costs on schools.
Optimization of Coconut Fiber and Styrofoam Composition in Concrete to Improve Strength and Sound Absorption Purwanto; Firmawan, Ferry; Ahmad, Fahrudin; Purwanti, Hani; Husna, Aimmatul; Darus, Nadirah; Haron, Zaiton; Yahya, Khairulzan
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.2752

Abstract

This study aimed to evaluate the effect of coconut husk and Expanded Polystyrene (EPS) composition on the mechanical and acoustic properties of lightweight concrete. The research was conducted experimentally using a two-way factorial design with coconut husk variations of 0%, 0.5%, 1%, 1.5%, and 2% of cement weight and EPS variations of 0%, 10%, 20%, and 30% of coarse aggregate volume. A total of 20 mix variations (5 coir levels × 4 EPS levels) were prepared with three replications for each test, resulting in 120 specimens. Compressive strength was tested at 7 days following ASTM C39, while sound absorption was measured at frequencies of 100–2000 Hz based on ISO 10534-2. The results showed that the addition of coconut husk up to 1% improved compressive strength through fibre reinforcement, whereas increasing EPS content enhanced sound absorption due to higher porosity but reduced mechanical strength. Statistical analysis using ANOVA (R² = 0.94, p < 0.05) and desirability optimisation identified the optimal composition at 1% coconut husk and 10% EPS. The developed lightweight concrete is suitable for non-structural building components requiring improved acoustic performance and reduced weight.
Co-Authors A Kassim, Ahmad Syakir Farhan Aimmatul Husna, Aimmatul Amir Nizam, Noramera Nabila Awang, Abdullah Zawawi Darus, Nadirah Fadil Othman Fahrudin Ahmad Ferry Firmawan Haron, Zaliza Hussien, Norelyza Kamaludin, Helmi Malek, Nur Syalyana Mazlan, Ain Naadia Mohammad Ismail Mohd Yussup, Rafidah Purwanti, Hani Purwanto Rifki, Rifa Rafida Sheikh Ahmad, Sheikh Izat Azhar Yaakob, Syamsul Hafiz Zaiton Haron, Zaiton Zakaria, Rozana