Yunan Hanun, Sofia W. Alisjahbana, Dadang M. Ma'Soem, M. Ikhsan Setiawan, Ansari Saleh Ahmar
Estimated value of construction industry in Indonesia in 2016 is Rp. 1.303 trillion, in 2017 is Rp. 1.460 trillion and in 2018 is Rp. 1.640 trillion. Especially for the value of the infrastructure industry in 2016 is Rp. 708 trillion, in 2017 is Rp. 795 trillion and in the year 2018 is Rp. 891 trillion (Office of Public Appraisal Services (KJPP), 2016). The Ability to produce concrete of each company is different, depending on the foresight in calculating material costs, carefulness in the management of materials to be wasted a little, buying materials for cheap prices, the use of the right tools, optimizing tool operation, selecting factory location, and placing human resource to manage production process, whose ultimate goal is to get the lowest cost (production cost) in producing concrete. The objectives of this study are to design the cost estimation of Beton Production and to identify factors influencing the cost of Beton Production. The study was conducted on 38 (thirty eight) factories in Java. The method used is doubled linear regression using SPSS (Statistical Package for the Social Sciences) software. This method is chosen because it is a technique that can be used to analyze and predict the contribution of a potential variable for overall reliability. The estimated model is Y = - 2351,577 + 1,386 X1 + 0,856 X2 + 0,656 X3 + 279,253 X5 + 3,041 X6 + 2,576 X8, with Y = cost of production, X1 = Use of cement (kg/m3), X2 = rubble stone usage (m3/m3 of beton), X3 = sand usage (m3/m3 of beton), X5 = additive usage (liter/m3)), X6 = tool period (year), X8 = time of equipment operation (hour/month). © Published under licence by IOP Publishing Ltd.
Tarumanagara University, Indonesia; Bakrie University, Indonesia; Trisakti University, Indonesia; Narotama University, Indonesia; Universitas Negeri Makassar, Indonesia; AHMAR Institute, Indonesia
