REUSE OF SPUN PILE PRODUCTION WASTE FOR PAVING BLOCK DEVELOPMENT BY TAGUCHI METHOD

J@ti Undip: Jurnal Teknik Industri Pub Date : 2024-05-13 DOI:10.14710/jati.19.1.1-11

Farid Wajdi, Fajar Herkuntarto, Gina Ramayanti

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Abstract

The production of precast spun piles generates solid and liquid waste products. The solid waste consists of stone, sand, and mud materials, while the liquid waste consists of K-600 grade concrete cement mixed with water. It is poured into a 1m3 container and solidifies within 3 hours. The production process of precast concrete piles is fast, which results in quick waste accumulation in the factory area. This research aims to transform the waste into paving blocks suitable for road construction. The Taguchi method is employed to determine the optimal strength of the paving blocks using three variables: (1) the ratio of solid to liquid waste in three levels - 70:30%, 60:40%, and 50:50%, (2) mixing time in three levels - 5, 10, and 15 minutes, and (3) curing time in three levels - 3, 7, and 14 days. The strength of the paving blocks is tested by measuring the maximum compressive strength. The results indicated that the best combination for achieving maximum compressive strength was using (1) a 50%:50% ratio of solid to liquid waste, (2) a curing time of 14 days, and (3) a mixing time of 5 minutes, resulting in a maximum compressive strength of 125.72 Kg/cm2. It is equivalent to Grade D paving blocks that are suitable for road application.

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用塔口法重新利用纺桩生产废料开发铺路砖

预制旋喷桩的生产过程会产生固体和液体废料。固体废料包括石、沙和泥浆材料，液体废料包括与水混合的 K-600 级混凝土水泥。它被倒入一个 1 立方米的容器中，并在 3 小时内凝固。预制混凝土管桩的生产过程速度很快，因此工厂区的废物积累也很快。本研究旨在将废料转化为适用于道路建设的铺路砖。本研究采用田口方法，利用三个变量确定铺路砖的最佳强度：(1) 固体和液体废物的比例，分为三个等级--70:30%、60:40% 和 50:50%；(2) 搅拌时间，分为三个等级--5 分钟、10 分钟和 15 分钟；(3) 养护时间，分为三个等级--3 天、7 天和 14 天。通过测量最大抗压强度来测试铺路砖的强度。结果表明，获得最大抗压强度的最佳组合是：(1) 固体和液体废料的比例为 50%:50%；(2) 固化时间为 14 天；(3) 搅拌时间为 5 分钟，从而获得 125.72 Kg/cm2 的最大抗压强度。它相当于适用于道路应用的 D 级铺路砖。

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J@ti Undip: Jurnal Teknik Industri

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