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Pengaruh Air Laut pada Kualitas Paving Block untuk Aplikasi Non-Struktural
Abstract
Penggunaan air tawar dalam industri konstruksi, termasuk dalam pembuatan paving block, menghadapi tantangan besar akibat keterbatasan sumber daya air tawar di banyak wilayah. Penelitian ini bertujuan untuk mengevaluasi potensi penggunaan air laut sebagai alternatif pengganti air tawar dalam proses pencampuran dan perawatan paving block, terutama untuk aplikasi non-struktural di daerah pesisir. Metode penelitian melibatkan empat jenis campuran paving block: AT-AT (pencampuran dan perawatan dengan air tawar), AT-AL (pencampuran dengan air tawar dan perawatan dengan air laut), AL-AT (pencampuran dengan air laut dan perawatan dengan air tawar), dan AL-AL (pencampuran dan perawatan dengan air laut). Pengujian dilakukan pada umur benda uji 28 dan 91 hari untuk mengevaluasi kuat tekan, daya serap air, porositas, ketahanan terhadap larutan asam, dan nilai resistivitas listrik. Hasil penelitian menunjukkan bahwa campuran AT-AT memiliki kualitas terbaik dengan kuat tekan tertinggi, porositas dan daya serap air terendah, serta ketahanan optimal terhadap lingkungan asam dan korosi. Campuran AL-AT juga menunjukkan performa baik dengan electrical resistivity tinggi dan penurunan porositas signifikan, menjadikannya layak untuk aplikasi di wilayah pesisir. Meskipun campuran AL-AL menunjukkan peningkatan porositas dan penurunan ketahanan terhadap asam, hasil resistivitasnya tetap memadai untuk aplikasi non-struktural ringan. Temuan ini mengindikasikan bahwa air laut dapat digunakan sebagai alternatif yang ekonomis dalam pembuatan dan perawatan paving block di daerah dengan keterbatasan air tawar, tanpa mengorbankan kualitas secara signifikan untuk aplikasi non-struktural.
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DOI: https://doi.org/10.35334/be.v8i3.5993
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