Bottom ash as a solid waste of the palm oil industry turned into a high-value cement replacement for sustainable cement-based materials

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Journal of Material Cycles and Waste Management Pub Date : 2024-09-11 DOI:10.1007/s10163-024-02064-9
Kiki Dwi Wulandari, Moh. Najib Rizal, Gati Annisa Hayu, Wahyuniarsih Sutrisno, Priyo Suprobo
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Abstract

Bottom ash needs a pre-treatment process to produce the finer particles until it is like cement material and has a good reactivity as pozzolanic material. This research investigates the effect of using bottom ash on the durability performance of concrete. The modified process was applied to bottom ash to produce finer particles that can improve the durability performances of concrete. The concrete used in this study is self-compacting concrete (SCC) due to its convenience. The bottom ash was pretreated by mechanical grinding before being used as supplementary cement materials (SCM), later called ground bottom ash, and applied from 10% to 50% as the partial replacement by the weight of cement. BA30 showed the highest compressive strength with an increasing percentage of 32% and had a similar value to BA0. The porosity of all mixtures was under 15%. The water absorption of all mixtures was under 10%. BA10, BA20, and BA30 reduced the permeability of the SCC, while BA50 increased the permeability of the SCC. BA30 had the lowest value of RCPT as 916.22 C. The results show that bottom ash positively affects the durability performance of SCC and can be used as an SCM to produce more sustainable cement-based construction materials.

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作为棕榈油工业固体废物的底灰被转化为高价值水泥替代品,用于生产可持续水泥基材料
底灰需要经过预处理过程,以产生更细的颗粒,直至其与水泥材料相似,并具有良好的反应活性,可作为一种混合材料。本研究调查了使用底灰对混凝土耐久性能的影响。对底层灰进行了改良处理,以产生更细的颗粒,从而提高混凝土的耐久性能。本研究中使用的混凝土是自密实混凝土(SCC),因为它非常方便。在用作水泥补充材料(SCM)(后称磨细底灰)之前,底灰经过机械研磨预处理,以水泥重量的 10%至 50%作为部分替代物。BA30 的抗压强度最高,抗压强度百分比增加到 32%,与 BA0 相近。所有混合物的孔隙率都低于 15%。所有混合物的吸水率都低于 10%。BA10、BA20 和 BA30 降低了 SCC 的渗透性,而 BA50 增加了 SCC 的渗透性。BA30 的 RCPT 值最低,为 916.22 C。结果表明,底灰对 SCC 的耐久性能有积极影响,可作为一种 SCM 用于生产更具可持续性的水泥基建筑材料。
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来源期刊
CiteScore
5.30
自引率
16.10%
发文量
205
审稿时长
4.8 months
期刊介绍: The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles. The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management. The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).
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