Analisis Efisiensi Biaya dan Waktu akibat Pergantian Material pada Proyek Revitalisasi Komplek Stadion Kebun Bunga (Multi Years) (Studi Kasus: Pergantian Bata Merah menjadi Bata Ringan pada Pekerjaan Dinding di Gedung Olahraga Indoor)

Abstract

ABSTRACT The need for infrastructure continues to increase along with population growth and economic development, where building construction is one example, ranging from simple residences to high-rise buildings. The building requires walls as the main structural element that limits the space, providing privacy, security, and protection from the elements. This automatically increases the need for wall materials such as bricks. The rise of development has caused the availability and production of bricks to be crucial to meet the growing market demand. Over time, the materials in wall work continue to give rise to a diversity of types with their own disadvantages and advantages, in terms of cost and time of work, for example such as red bricks and light bricks. This study aims to analyze the difference in construction cost and time caused by the change of wall material from red brick to light brick in the revitalization project of the Kebun Bunga Stadium Complex. The quantitative method of construction is used as a reference, by comparing the total cost and completion time of each material. The results of the analysis from the management of the cost budget, unit price of work and bill of quantities show that the use of red bricks results in a total cost of IDR. 191.639.270,53 with a duration of 70 days. Meanwhile, the use of light bricks resulted in a cost of IDR. 170.985.141,283 but with a settlement time of only 26 days. Where the cost of using light bricks is cheaper around 10,7%, significant time efficiency reaches 62,852%. A comprehensive evaluation shows that replacing materials with lightweight bricks provides both cost and time benefits that have the potential to increase productivity and accelerate the implementation of construction projects.