Sustainable Green Interlocking Pavement Block
Keywords:environmental friendly product, concrete, coconut shell ash, interlocking pavement
In accordance upon conservation efforts, this research emphasizes on prevention of environmental pollution and considers the elements of sustainable of infrastructure construction materials, which is interlocking pavement block. The development of this innovative product apply the concept of 3Rs and waste to wealth by using the agricultural waste product, coconut shell, where widely available with very minimum cost worldwide especially in tropical country such as India, Indonesia, Philippines, Thailand and Malaysia. The main objective of this research is to produce an environmental friendly product with a good quality, low cost and lightweight known as Green Interlocking Pavement (GIP Block). The chemical composition of coconut shell ash and ordinary Portland cement being identified and compared to know whether it is able to react as a good binder in the mixture or not. The quality of GIP Block considered is compressive strength, water absorption and bulk density. All the blocks were curing in seven and 28 days before implementing the entire test. The existing interlocking pavement used as bench mark and GIP Block 0% of proportion of coconut shell ash used as control variables. The specimen of the interlocking pavement prepared in this research is 10%, 20% and 30% proportion of coconut shell ash to partially replace the quantity of cement. The ratio of the interlocking pavement apply in this research is 1:2 which stand for one part cement and two part of sand. The findings withdrawn from this research are: first, the chemical characteristic of the coconut shell ash and cement. Second, the value of bulk density slightly reduces as the percentage of coconut shell ash increases. Third, the additional of coconut shell ash to partially replace the quantity of cement in the product reduce the compressive strength and increase the percentage of water absorption.