Micropore Structure of Cement-Stabilized Gold Mine Tailings

被引：7

作者：

Lee, Joon Kyu ^{[1
]}

Shang, Julie Q. ^{[2
]}

机构：

[1] Univ Seoul, Dept Civil Engn, Seoul 02504, South Korea

[2] Western Univ, Dept Civil & Environm Engn, London, ON N6A 5B9, Canada

来源：

MINERALS | 2018年 / 8卷 / 03期

基金：

新加坡国家研究基金会; 加拿大自然科学与工程研究理事会;

关键词：

tailings; cement; microstructure; mercury intrusion porosimetry; activation; CALCIUM-CHLORIDE; FLY-ASH; MICROSTRUCTURE;

D O I：

10.3390/min8030096

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Mine tailings have often to be stabilized by mixing them with cementing agents. In this study, the pore structure of gold tailings stabilized with Portland cement was evaluated by means of mercury intrusion porosimetry. The investigation was conducted on samples prepared with different fractions of tailings and cement as well as on samples activated with elevated temperature curing and chemical (CaCl2) addition. It was observed that all mixed samples exhibit a mono-modal pore size distribution, indicating that the cement-stabilized tailings are characterized by a single-porosity structure. The results also showed that the higher fraction of tailings and cement leads to a dense and finer pore structure. The total porosity of mixture samples decreases with increasing curing temperature and CaCl2 concentration due to the acceleration of hydration reaction.

引用

页数：9

共 50 条

[1] Evaluation of Cement-Stabilized Mine Tailings as Pavement Foundation Materials
Djellali, Adel
Laouar, Mohamed Salah
Saghafi, Behrooz
Houam, Abdelkader
GEOTECHNICAL AND GEOLOGICAL ENGINEERING, 2019, 37 (04) : 2811 - 2822
[2] Microstructure and Strength Parameters of Cement-Stabilized Loess
Axel, Mani
Li, Xi'an
Wen, Feng
An, Ming-Xiao
GEOTECHNICS, 2023, 3 (02): : 161 - 178
[3] Investigation on geomechanical behaviour and microstructure of cement-stabilized fly ash
Samanta, Manojit
INTERNATIONAL JOURNAL OF GEOTECHNICAL ENGINEERING, 2018, 12 (05) : 449 - 461
[4] A comparative study: Effects of different nanoparticles on the properties of gold mine tailings containing cement mortars
Ozen, Meral Yildirim
Derun, Emek Moroydor
CONSTRUCTION AND BUILDING MATERIALS, 2019, 202 : 396 - 405
[5] Experimental researches on microstructure of nanometer silicon and cement-stabilized soils
Wang, Lifeng
ADVANCES IN STRUCTURAL ENGINEERING, PTS 1-3, 2011, 94-96 : 358 - 364
[6] Substitution of Tailings Sand in Cement-Stabilized Gravel Base Material for Road Construction: Mechanical Properties, Durability, and Microstructure
Que, Yun
Jia, Shenghui
Wang, Lun
Fang, Lei
Mu, Honglin
JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2025, 37 (04)
[7] Application of self-sensing cement-stabilized sand for damage detection
Roshan, Mohammad Jawed
Abedi, Mohammadmahdi
Correla, Antonio Gomes
Fangueiro, Raul
CONSTRUCTION AND BUILDING MATERIALS, 2023, 403
[8] Strength and deformation characteristics of cement-stabilized Fe-rich fine iron ore tailings
Khamseh, Behnaz
Shourijeh, Piltan Tabatabaie
Binesh, Seyed Mohammad
CONSTRUCTION AND BUILDING MATERIALS, 2025, 463
[9] An Experimental Study on the Resilient Modulus of Cement-Stabilized Mine Overburden as Sustainable Base Materials
Ghanizadeh, Ali Reza
Jahanshahi, Farzad Safi
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, 2025, 50 (03) : 1511 - 1530
[10] Mechanism of cement-stabilized soil polluted by magnesium sulfate
Han Peng-ju
Wang Shuai
Chen, Frank Y.
Bai Xiao-hong
JOURNAL OF CENTRAL SOUTH UNIVERSITY, 2015, 22 (05) : 1869 - 1877

← 1 2 3 4 5 →