Abstract
One of the most important components in the construction execution is concrete works. Therefore, we need formworks to form the structural elements that are planned in a construction process. In the process, an economical alternative needs to be taken regarding choosing formwork material to get more benefits, both in terms of cost and time. Fabric formwork can be an alternative solution for formwork material. An example of a feasible formwork material alternative is woven polyethylene-based formwork. The purpose of this research is to evaluate the performance value of woven polyethylene formwork and compare it with the conventional formworks such as wood and brick in terms of cost and time. Field observations and literature reviews have been done to answer these questions. By using woven polyethylene formwork on tie beam and pile cap structure, it was found that the average time and the investment cost of installation are consecutively 344.23 s/m2 and IDR75000 which is faster and cheaper than using conventional ones.
Highlights
Concrete work is one of the most important components of the construction project
Based on the results of the research, in terms of time, woven polyethylene formwork has a faster installation time compared to other materials such as woods and bricks, which has an average installation time of 344.23 s/m2
Woven polyethylene formwork is cheaper compared to other materials such as wood and brick, which has an installation cost of IDR 75 000/m2
Summary
Concrete work is one of the most important components of the construction project. Concrete is a material that can reduce building maintenance costs, give the fire resistance to the building, is able to reduce noise, so it can provide a longer life to a building (Hanna, 1999). Concrete needs a mould to form the structural elements in the construction projects, which is usually called formwork. Formwork is defined as a temporary structure whose purpose is to provide support and resistance until the concrete can support its own weight. Formwork contributes 40-60% of total concrete work and about 10% of total building costs (Hanna, 1999). The construction team should make an economical decision from the material selection to the formwork installation, so it can provide a benefit both in terms of cost and time (Jones, 2003; Umit Dikmen & Sonmez, 2011)
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