TOTAL QUALITY MANAGEMENT (TQM) EFFICIENCY BETWEEN WOOD MATERIALS AND SCAFFOLDING IN BUILDINGS

Abstract

The purpose of this study was to efficiently use wood to support concrete casting and ceiling frames, to
find out the cost efficiency of implementing two different types of formwork systems, between
conventional wood formwork by reusing post-casting scaffold wood for ceiling frame materials, with semimodern formwork systems. Formwork (Scaffolding) and hollow metal ceiling frame systems. The data
collection method in this study was carried out by observing the process of building an office building in
JABODETABEK on conventional Formwork, wooden Scaffolding and semi-modern Formwork, interviews,
questionnaires on the efficiency of field implementation, and documentation. Tests to compare the two
scaffolding formwork systems were carried out in one-story buildings to four-story buildings with a typical
floor area of one to a specific four-floor floor area with the same area to compare and measure the two
scaffold formwork systems. At the time of project implementation on conventional formwork scaffolding,
there is a loss of wood volume of ±40% of the total wood use. Overall calculated from the test results of
these two systems in terms of casting costs, it turns out that conventional formwork with wood scaffold
formwork system is much better and more efficient, saves implementation time, saves implementation
costs, the difference between the two systems on wood is calculated using SNI 7394:2008, ranging from
±122.7 % to ±146.2 % wood is more efficient than the formwork system (Scaffolding). Then in terms of
efficiency, the volume of post-casting scaffolding wood, of ±60%, can also be reused more than enough
to meet the needs of the ceiling frame material for the high-rise building itself, which means that there is
no need to buy new ceiling frame materials. Meanwhile, the semi-modern formwork system for the ceiling
frame needs to spend more on buying ceiling frame materials such as hollow iron. Comparing the test
results of these two scaffold formwork systems for simple high-rise buildings and low-rise buildings (onestory buildings to four-story buildings) is recommended to use a conventional formwork system, namely
the wooden scaffolding formwork system.