Influence of curing media on properties of alkali-treated paddy straw-based lightweight geopolymer composites

IF 3.1 3区化学 Q2 POLYMER SCIENCE

Polymer Bulletin Pub Date : 2024-08-31 DOI:10.1007/s00289-024-05379-7

Nidhya Rathinavel, Arun Murugesan, Sivasubramanian Ramanathan, Muthukaruppan Alagar, Abdul Aleem Mohamed Ismail, H. N. Panchal, Naveen Kumar Gupta

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Abstract

This research mainly focused on studying the influence of various curing media on the properties of lightweight geopolymer composites. Here, Ground Granulated Blast furnace Slag (GGBS), Paddy straws, and the combination of sodium silicate and sodium hydroxide at the ratio of 2.5:1 were used to produce geopolymer composites. For this experiment, two different parameters, i.e., variation of paddy straw (0, 5, 10, 15, and 20%) and variation of curing media (Intermittent, Heat, and Saline water), were chosen. The compressive strength of a 20% addition of paddy straw is dramatically reduced by 88.6%, while the density is reduced to 40.42%. Maximum flexure and tensile strength were noted as 65.11 and 45.5%, respectively, for the 15% addition of paddy straw. An interesting fact found from the samples cured under Saline water enhanced the overall compressive strength, tensile and flexural strength by 12.85, 45.5, and 21.2%, respectively, compared to the other two curing media.

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固化介质对碱处理稻草基轻质土工聚合物复合材料性能的影响

本研究主要侧重于研究各种固化介质对轻质土工聚合物复合材料性能的影响。在这里，使用了磨细高炉矿渣（GGBS）、稻草以及硅酸钠和氢氧化钠以 2.5:1 的比例组合来生产土工聚合物复合材料。本实验选择了两个不同的参数，即稻草的变化（0、5、10、15 和 20%）和固化介质的变化（间歇、加热和盐水）。稻草添加量为 20% 时，抗压强度大幅降低了 88.6%，而密度则降低了 40.42%。稻草添加量为 15%时，最大弯曲强度和拉伸强度分别为 65.11% 和 45.5%。一个有趣的事实是，与其他两种固化介质相比，在盐水中固化的样品的整体抗压强度、抗拉强度和抗折强度分别提高了 12.85%、45.5% 和 21.2%。

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来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

期刊介绍： "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."