Coconut Shell Fly-Ash Stabilized Soft Soil Characteristics; Utilization of Local Waste in Ternate

Abstract

The problem of waste is a problem in almost all urban areas. In Ternate City, for example, one of the most common wastes is coconut waste. Coconut waste is often found in Ternate City because North Maluku, including Ternate City, is one of the largest coconut producers in Indonesia. However, many coconut traders and consumers are reluctant to dispose of coconut waste in a place provided by the government. In landfills, coconut waste that is burned causes a lot of air pollution due to large-scale burning. Therefore, there is a need for a solution to overcome this problem. One thing that can be done is to look for alternative uses of coconut waste to be used or processed into other forms. In this case, this research focuses on the byproduct of Fly Ash which is derived from coconut shells. Fly Ash in this study was used as an additive for stabilizing soft soil. The method used in this study includes observing changes in plasticity properties, compaction characteristics and CBR values ​​for variations in Fly Ash content. The results showed that the addition of Fly Ash from coconut shell waste could increase the CBR value. Thus, coconut waste in Ternate City can provide benefits to the development of Ternate City