Analisis Perbandingan Harga Pekerjaan Dinding Menggunakan Bata Merah Dan Bata Ringan Pada Proyek Pembangunan SD Katolik 10 St. Theresia Manado

Abstract

The advancement of construction material technology necessitates innovation in the selection of building materials that are efficient in terms of cost, time, and structural performance. One such innovation is the use of lightweight bricks (Autoclaved Aerated Concrete/AAC) as an alternative to traditional clay bricks for wall masonry work. This study aims to analyze and compare the cost efficiency and construction time of wall masonry work using clay bricks versus lightweight bricks in the construction project of SD Katolik 10 St. Theresia Manado, executed by PT. Cakra Buana Megah. A quantitative approach was employed through analytical calculations based on field data, including material requirements, adhesive or mortar, transportation costs, labor productivity, and daily wages. The analysis compared the total cost and duration of work for both material types. The results show that the total cost of wall masonry using clay bricks reached IDR 328,054,520, while using lightweight bricks amounted to IDR 289,202,490, yielding a cost saving of IDR 38,852,030 (approximately 11.8%). In terms of construction time, clay brick masonry required 37 days, whereas lightweight brick masonry required only 14 days, representing a time efficiency of 62.2%. Technically, lightweight bricks offer advantages in terms of lower weight, higher dimensional precision, and ease of installation, all of which collectively enhance on-site productivity. Therefore, the use of lightweight bricks is proven to be more efficient and economical than clay bricks in both cost and duration, and is recommended as an alternative material to support the effectiveness of educational building construction projects.