THE STUDY OF ECO-COSTS ON BAMBOO PRESERVATION METHOD AS SUSTAINABLE MATERIAL ASSESSMENT OF BUILDING CONSTRUCTION

• Main Author: Zuraida, Siswanti
• Format: Theses
• Language: Indonesia
• Subjects: Arsitektur
• Online Access: https://digilib.itb.ac.id/gdl/view/33220
• Institution: Institut Teknologi Bandung

Due to its low durability, the bamboo preservation is needed to prolong bamboo lifespan. Although the preservatives have a great impact to make bamboo lifespan longer, some of bamboo preservation methods use chemical additives that have a negative impact to environment. So Life Cycle Assessment (LCA) method is used to assess the impact of bamboo preservation method to the environment. While the aims of this study are (1) to indentify bamboo preservation technique that used by society, (2) to identify environmental impact of bamboo preservation technique, (3) to reveal the effectiveness of bamboo preservation based on minimum negative value to the environment, (4) to identify the utility of bamboo as sustainable material for building construction. The study used qualitative and quantitative approach. Qualitative-exploratory was conducted to collect the data by in depth observation. Three of traditional dwelling were observed to know the traditional bamboo preservation. They are Kampong Naga, Kampong Pulo and Kampong Dukuh. While bamboo preservation plants were observed to find modern bamboo preservation, they are CV Sahabat Bambu, Jogjakarta and UD Jatimbu, Malang. Furthermore quantitative approach was conducted for data analyzing based on Life Cycle Assessment (LCA) method with eco-costs as an indicator. Based on the result of this study, traditional preservation that used by society are harvesting, soaking, and lime washing. While the modern preservation are Vertical Soak and Diffusion (VSD) with borax-boric acid solution, boiling with borax-boric acid solution, painting, and injection with the solution branded of Sarpeco 8. Thus the observation revealed that the society used another preservation method beside the traditional and modern one. This method was improved by trial-error method. They are soaking with salt solution, soaking with camphor and detergent solution, and filling or dying with used oil and kerosene. While the data analysis revealed that trial error method has the highest negative impact to the environment, especially the soaking with camphor and detergent solution. Thus the lowest impact is by lime washing technique. For economic analysis, soaking with camphor and detergent solution has the highest costs and eco-costs, while the lowest is by lime washing technique. For environmental economic analysis, soaking with camphor and detergent solution has the highest repair costs, while the lowest is by lime washing technique.Based on the result of analysis, trial-error is not recommended to be conducted, while the utility of bamboo preservation methods have a different implementation. For bamboo stem preservation that usually used for rafter, terrace and others structural element, VSD and injection of Sarpeco 8 can be conducted. Lime washing and painting are proper to conduct for architectural elements such as wall and ceiling. Basically, boiling with boraxboric acid solution and soaking with salt solution can be conducted to all building components. But it has to be considered about the fuel for boiling and the amount of salt solution.