Kajian Kuat Lentur Beton pada Perkerasan Kaku Jalan Tol Balikpapan-Samarinda

Abstract

The Balikpapan - Samarinda toll road is one part of the trans Kalimantan toll road that arrived currently under construction. The construction of this toll road uses rigid pavement. Road construction This toll road by the East Kalimantan Provincial Public Works Department requires a minimum flexural strength of 45 kg / cm� for 28 days of concrete age. The purpose of this study is to study flexural strength concrete on the rigid pavement of the Balikpapan-Samarinda toll road based on the planning of concrete mixes at field. This study uses experimental methods in the laboratory. Credit samples are made based on concrete mix planning in the field and testing in the laboratory. The sample as many as 24 pieces for a cylinder size of 15 x 30, and 12 pieces for blocks measuring 15 x 15 x 60, which will remain at the age of 7, 14, 21 and 28 days. The results of the strong test on the cylinder is obtained at 382 kg / cm2, 27% bigger than planning, and flexural strength in the beam of 53.48 kg / cm2, 18% greater than requirements. So it can be concluded that the pavement work is rigid on the Balikpapan-Samarinda toll road Has been in accordance with the provisions stipulated by the East Kalimantan Provincial Public Works Department.

Risk Analysis of Occupational Health and Safety (OHS) The Construction of the Road in Dumai City (Case Study: Sp. Batang – Sp. Kulim, Sp. Batang – Sp. Terminal and Bts. City of Dumai – Duri)

“…e. APD : Menggunakan safety shoes 4. Kulit pekerja terkena bahan berbahaya pada pekerjaan persiapan Risiko ini bisa terjadi pada saat pekerjaan survei pendahuluan seperti kulit pekerja terkena cat pilox maka pengendalian risiko yang dapat digunakan yaitu: (Rahmawati et al, 2018) a. Eliminasi : Pada pekerjaan ini tidak bisa dihilangkan aktivitasnya b. Substitusi : Menggunakan spidol c. Rekayasa/Engineering : Pembuatan instruksi kerja yang terpasang di lokasi area. d. Pengendalian administratif : Kegiatan Safety Talk dipimpin oleh pihak manajemen dan pesertanya hanya terdiri dari perwakilan petinggi dari dari masing-masing pelaksana proyek.…”