{"id":33716,"date":"2018-05-22T08:53:26","date_gmt":"2018-05-22T08:53:26","guid":{"rendered":"https:\/\/www.its.ac.id\/news\/?p=33716"},"modified":"2018-05-22T08:53:26","modified_gmt":"2018-05-22T08:53:26","slug":"mahasiswa-ubah-limbah-marmer-jadi-beton-berkualitas","status":"publish","type":"post","link":"https:\/\/www.its.ac.id\/news\/mahasiswa-ubah-limbah-marmer-jadi-beton-berkualitas\/","title":{"rendered":"Mahasiswa ITS Ubah Limbah Marmer Jadi Beton Berkualitas"},"content":{"rendered":"
\"\"
Tim Karyabrata saat pengerjaan beton dari limbah marmer.<\/figcaption><\/figure>\n

Kampus ITS, ITS News –<\/strong> Tak semua limbah menjadi sesuatu yang tak berguna. Di tangan tiga orang mahasiswa Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember (ITS) Surabaya, limbah marmer yang biasanya hanya menjadi sampah tak berguna berhasil diubah menjadi beton yang berkualitas.<\/p><\/blockquote>\n

Ketiga mahasiswa itu adalah Dimas Sanda Wicaksana, Gifary Maulana, dan Tommy Anggryawan. Limbah marmer yang dimaksud ini berupa potongan serbuk marmer yang biasanya dihasilkan dari suatu industri pengolahan batu marmer. Menurut observasi yang pernah dilakukan tim bernama Karyabrata ini, limbah tersebut bertumpuk di sepanjang aliran sungai dan membuat laju air terhambat.<\/p>\n

\u201cJika tidak ada penanganan (limbah marmer, red) lebih lanjut, maka akan menyebabkan bencana banjir di sekitarnya,\u201d tutur Dimas selaku ketua tim Karyabrata ini.<\/p>\n

Potongan serbuk marmer tersebut, kata Dimas, hanya digunakan sebagai bahan tambahan pada pembuatan beton. Beton yang dibuat berukuran 15cm x 30cm, berbentuk silinder, dan bermutu 20 megapascal (MPa). \u201cDalam proses pembuatannya, kami hanya membutuhkan waktu tiga hari dari waktu normal 28 hari,\u201d jelas mahasiswa program diploma 4 (D4) tersebut.<\/p>\n

Selain menambahkan limbah marmer, menurut Dimas, untuk meningkatkan workability dan mempertahankan keenceran beton, digunakan juga katalis berjenis sikacim. \u201cHarganya ekonomis dan memiliki mutu yang tinggi, saya rasa ini cocok digunakan untuk membuat beton versi mahasiswa,\u201d ujarnya.<\/p>\n

Meskipun mengalami beberapa kesulitan saat pengerjaan, Dimas mengaku timnya tetap optimistis dan melakukan berbagai pengujian berulang kali hingga berhasil. Di antaranya pengujian slump-flow<\/em> untuk menentukan flowability atau kemampuan alir dan stabilitas beton. Hal ini untuk mengetahui aliran beton yang memenuhi celah-celah sempit akibat struktur yang terlalu dekat.<\/p>\n

\u201cSaat di lapangan kami kesulitan mengerjakan proses pencampuran pasir yang tergolong berlumpur. Pasir yang berlumpur akan menghambat penyerapan yang berakibat pada nilai kekuatan beton yang diharapkan,\u201d papar mahasiswa angkatan 2015 ini.<\/p>\n

Berkat inovasi yang dilakukan dalam membuat beton tersebut, tim Karyabrata ini juga telah berhasil membawa pulang juara 2 dalam kompetisi beton nasional di Universitas Muhammadiyah Purwokerto, Jawa Tengah, beberapa waktu lalu. (rio\/Humas ITS)<\/p>\n

\"\"
Tim Karyabrata<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

Kampus ITS, ITS News – Tak semua limbah menjadi sesuatu yang tak berguna. Di tangan tiga orang mahasiswa Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember (ITS) Surabaya, limbah marmer yang biasanya hanya menjadi sampah tak berguna berhasil diubah menjadi beton yang berkualitas. Ketiga mahasiswa itu adalah Dimas Sanda Wicaksana, Gifary Maulana, dan Tommy Anggryawan. […]<\/p>\n","protected":false},"author":33,"featured_media":33717,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14,12],"tags":[],"class_list":["post-33716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-berita-utama","category-headline"],"yoast_head":"\nMahasiswa ITS Ubah Limbah Marmer Jadi Beton Berkualitas - ITS News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.its.ac.id\/news\/mahasiswa-ubah-limbah-marmer-jadi-beton-berkualitas\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mahasiswa ITS Ubah Limbah Marmer Jadi Beton Berkualitas - ITS News\" \/>\n<meta property=\"og:description\" content=\"Kampus ITS, ITS News – Tak semua limbah menjadi sesuatu yang tak berguna. 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