Effect of Ultrafine Ground Granulated Blast-Furnace Slag (UFGGBFS) and Copper Slag on Ambient Cured Geopolymer Concrete

IF 0.6 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Annales De Chimie-science Des Materiaux Pub Date : 2019-12-23 DOI:10.18280/acsm.430603

V. Rathanasalam, J. Perumalsami, K. Jayakumar

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引用次数: 3

Abstract

Received: 15 August 2019 Accepted: 6 November 2019 This paper explores deep into the effects of mineral admixtures, e.g. ultrafine ground granulated blast-furnace slag (UFGGBFS) and copper slag (CPS), on ambient cured geopolymer concrete (GPC). First, a GPC was prepared from mineral admixtures like the UFGGBFS, fly ash and the CPS, and alkali activators like sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). Then, 10M, 12M and 14M GPC samples were created, with UFGGBFS content of 0%, 5%, 10% and 15%, respectively. These samples were subjected to compressive strength tests, rapid chloride permeability test (RCPT), X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The results show that the GPC samples achieved good compressive strength after 56 days of ambient curing; with the increase of the UFGGBFS content, the porosities and RCPT values of the samples decreased after 180 days of ambient curing; the samples with different mix ratios all showed good performance with the growth in molar concentration. The research results shed new light on the development of eco-friendly alternatives to cementitious GPC.

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超细磨粒级高炉渣和铜渣对环境固化地聚合物混凝土的影响

本文深入探讨了矿物掺合料(如超细磨粒状高炉渣(UFGGBFS)和铜渣(CPS))对环境固化地聚合物混凝土(GPC)的影响。首先，用矿物外加剂(如UFGGBFS、粉煤灰和CPS)和碱活化剂(如氢氧化钠(NaOH)和硅酸钠(Na2SiO3))制备GPC。然后制作10M、12M和14M的GPC样品，UFGGBFS含量分别为0%、5%、10%和15%。对样品进行了抗压强度测试、快速氯化物渗透性测试(RCPT)、x射线衍射(XRD)和扫描电子显微镜(SEM)等。结果表明:经过56 d的环境养护，GPC试样获得了较好的抗压强度;环境养护180 d后，随着UFGGBFS含量的增加，试样的孔隙率和RCPT值降低;随着摩尔浓度的增加，不同配比的样品均表现出良好的性能。研究结果为开发胶凝GPC的环保替代品提供了新的思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annales De Chimie-science Des Materiaux 工程技术-材料科学：综合

CiteScore

1.70

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： The ACSM is concerning the cutting-edge innovations in solid material science. The journal covers a broad spectrum of scientific fields, ranging all the way from metallurgy, semiconductors, solid mineral compounds, organic macromolecular compounds to composite materials. The editorial board encourages the submission of original papers that deal with all aspects of material science, including but not limited to synthesis and processing, property characterization, reactivity and reaction kinetics, evolution in service, and recycling. The papers should provide new insights into solid materials and make a significant original contribution to knowledge.