Experimental study of artificial lightweight aggregates using coal fly ash and epoxy resin

Q2 Materials Science

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI:10.5267/j.esm.2023.5.007

Ani Firda, A. Saggaff, Hanafiah Hanafiah, S. Saloma

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Abstract

A lack of natural aggregates in the future is unavoidable, which generates issues for building development. For many industries, natural resources constitute a significant source of revenue. As a result, light artificial aggregate is produced to anticipate the decreasing source of natural aggregate. Production of artificial geopolymer aggregates, fly ash from the burning of coal has been proposed. This paper investigates the optimal proportion of epoxy resin and coal fly ash-based synthetic aggregates. The artificial aggregates are produced following specific gravity and compressive strength standards that may be used as a component of lightweight structural concrete (LWC). The production polymer lightweight aggregate (PLA) comes from a combination of coal fly ash and epoxy resin. The results show that PLA 50:50 to PLA 74:26 can be used for 6 hours to make structural concrete with a strength of more than 17 MPa. PLA 80:20 could achieve compressive strength with the range of 7-17 MPa. PLA 84:16 achieves a compressive strength range of 0.35 to 7 MPa and is utilized as a non-structural element. However, the flexural strength values in concrete LWC 70:30 and LWC 80:20 are higher, at 46.1% and 7.63%, respectively.

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粉煤灰与环氧树脂合成人工轻质集料的试验研究

未来自然骨料的缺乏是不可避免的，这给建筑发展带来了问题。对许多工业来说，自然资源是收入的重要来源。因此，生产轻质人工骨料，以预测天然骨料来源的减少。提出了利用煤燃烧粉煤灰生产人工地聚合物骨料的方法。研究了环氧树脂与粉煤灰基合成骨料的最佳配比。人造骨料是按照比重和抗压强度标准生产的，可以用作轻质结构混凝土(LWC)的组成部分。高分子轻骨料(PLA)是由粉煤灰和环氧树脂混合而成。结果表明，PLA 50:50 ~ PLA 74:26的掺量可使结构混凝土的强度达到17mpa以上。PLA 80:20可达到7-17 MPa的抗压强度。PLA 84:16达到0.35到7 MPa的抗压强度范围并且被用作非结构元件。而LWC 70:30和LWC 80:20的混凝土抗弯强度值更高，分别为46.1%和7.63%。

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来源期刊

Engineering Solid Mechanics Materials Science-Metals and Alloys

CiteScore

3.00

自引率

0.00%

发文量

期刊介绍： Engineering Solid Mechanics (ESM) is an online international journal for publishing high quality peer reviewed papers in the field of theoretical and applied solid mechanics. The primary focus is to exchange ideas about investigating behavior and properties of engineering materials (such as metals, composites, ceramics, polymers, FGMs, rocks and concretes, asphalt mixtures, bio and nano materials) and their mechanical characterization (including strength and deformation behavior, fatigue and fracture, stress measurements, etc.) through experimental, theoretical and numerical research studies. Researchers and practitioners (from deferent areas such as mechanical and manufacturing, aerospace, railway, bio-mechanics, civil and mining, materials and metallurgy, oil, gas and petroleum industries, pipeline, marine and offshore sectors) are encouraged to submit their original, unpublished contributions.