Mechanochemical activation of non-conventional precursors for use as suplementary cementitious materials

IF 5.8 2区地球科学 Q2 CHEMISTRY, PHYSICAL Applied Clay Science Pub Date : 2025-01-10 DOI:10.1016/j.clay.2025.107705

A. Seco , M.A. Martín-Antunes , S. Espuelas , A. Fernández , E. Prieto

{"title":"Mechanochemical activation of non-conventional precursors for use as suplementary cementitious materials","authors":"A. Seco , M.A. Martín-Antunes , S. Espuelas , A. Fernández , E. Prieto","doi":"10.1016/j.clay.2025.107705","DOIUrl":null,"url":null,"abstract":"<div><div>This work analyzes the effect of Mechanochemical Activation (MA) of a Commercial low-grade kaolinite and low-grade illite, a feldspar, a diatomite and a clayey soil (non-commercial) as supplementary cementitious materials. Milling was conducted at different times for up to 360 min. MA decreased the particles size and increased the specific surface area except for low-grade illite. However, prolonged milling produced agglomeration in feldspar, diatomite and clayey soil. MA partially reduced diffractogram peaks and modified the dehydroxylation losses of mass in the thermogravimetric tests. MA's effect over the solubility of SiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> was not conclusive, with differences among aluminosilicate minerals and with no relationships with their physical parameters or chemical structures. Feldspar was the only one not to show Strength Activity Index (SAI) increases due to MA. Low-grade illite, feldspar and diatomite combinations surpassed 75 % on the SAI. No clear relationships were observed between the combinations SAI and their physical parameters, chemical structure or SiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> availability.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"266 ","pages":"Article 107705"},"PeriodicalIF":5.8000,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Clay Science","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0169131725000109","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

This work analyzes the effect of Mechanochemical Activation (MA) of a Commercial low-grade kaolinite and low-grade illite, a feldspar, a diatomite and a clayey soil (non-commercial) as supplementary cementitious materials. Milling was conducted at different times for up to 360 min. MA decreased the particles size and increased the specific surface area except for low-grade illite. However, prolonged milling produced agglomeration in feldspar, diatomite and clayey soil. MA partially reduced diffractogram peaks and modified the dehydroxylation losses of mass in the thermogravimetric tests. MA's effect over the solubility of SiO₂ and Al₂O₃ was not conclusive, with differences among aluminosilicate minerals and with no relationships with their physical parameters or chemical structures. Feldspar was the only one not to show Strength Activity Index (SAI) increases due to MA. Low-grade illite, feldspar and diatomite combinations surpassed 75 % on the SAI. No clear relationships were observed between the combinations SAI and their physical parameters, chemical structure or SiO₂ and Al₂O₃ availability.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

作为补充胶凝材料的非常规前体的机械化学活化

本文分析了工业低品位高岭石和低品位伊利石、长石、硅藻土和粘土（非商业）作为补充胶凝材料的机械化学活化（MA）效果。在不同的时间进行磨矿，最长可达360分钟。除了低品位伊利石外，MA降低了颗粒尺寸并增加了比表面积。然而，长时间磨矿在长石、硅藻土和粘土中产生结块。MA部分地减少了衍射峰，并改变了热重测试中去羟基化的质量损失。MA对SiO2和Al2O3溶解度的影响不确定，铝硅酸盐矿物之间存在差异，与它们的物理参数或化学结构无关。长石是唯一未表现出强度活性指数（SAI）升高的矿物。低品位伊利石、长石和硅藻土组合在SAI上超过75%。组合物SAI与其物理参数、化学结构或SiO2和Al2O3的可用性之间没有明显的关系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Applied Clay Science 地学-矿物学

CiteScore

10.30

自引率

10.70%

发文量

289

审稿时长

39 days

期刊介绍： Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as: • Synthesis and purification • Structural, crystallographic and mineralogical properties of clays and clay minerals • Thermal properties of clays and clay minerals • Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties • Interaction with water, with polar and apolar molecules • Colloidal properties and rheology • Adsorption, Intercalation, Ionic exchange • Genesis and deposits of clay minerals • Geology and geochemistry of clays • Modification of clays and clay minerals properties by thermal and physical treatments • Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays) • Modification by biological microorganisms. etc...