亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Ladle furnace slag as a new source of supplementary cementitious material: Evaluating long-term performance and environmental impact in Portland cement systems

硅酸盐水泥 胶凝的 熔渣(焊接) 水泥 钢包 冶金 磨细高炉矿渣 环境科学 废物管理 材料科学 工程类
作者
Paulo Araos,Diego Aponte,Marilda Barra Bizinotto
出处
期刊:Journal of building engineering [Elsevier BV]
卷期号:: 109995-109995
标识
DOI:10.1016/j.jobe.2024.109995
摘要

Portland cement (OPC) and steelmaking industries exhibit high production levels and will continue to grow to meet global infrastructure/urbanization requirements. However, their production processes are not environmentally friendly, producing approximately 5-8% of global CO2 emissions. They introduced several improvements in their processes to mitigate their negative externalities towards cleaner production. However, the steelmaking industry generates large volumes of solid waste, such as ladle furnace slag (LFS), which could be used as part of the new sources of supplementary cementitious material (SCM) to reduce OPC consumption once its main technological barriers related to fast setting, variable mechanical performance, volume instability, and environmental impact issues are resolved. This study explores a safe and high-value application that valorizes a local LFS as a new source of SCM. Pastes were prepared to study the effect of medium-to mid-high LFS-OPC content replacement by weight. Fresh/hardened state properties, environmental impact by leaching, and chemical/mineralogical characterization of raw/hydrated samples were tested, and a new methodology was proposed to calculate the degree of hydration of the LFS-OPC system considering the particularities of this type of slag to analyze the long-term performance evolution from 7 to 900 days. Our results suggest that using LFS as part of the era of SCMs is feasible because of its adequate mechanical/environmental performance, reaching values over the compressive strength index performance at 28 days and behaving as an inert waste. It is essential to consider the changes in workability and setting time. In addition, it displayed a higher potential volumetric instability depending on the LFS content. Finally, the microstructural characterization revealed a change in the typical OPC reactions, increasing the AFm/AFt hydration products because of the higher content of Ca/Al reactive phases contributed by the slag.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
11秒前
Xw完成签到,获得积分10
19秒前
科研通AI5应助迷人问兰采纳,获得10
34秒前
Hello应助LSH970829采纳,获得10
44秒前
Xw发布了新的文献求助10
47秒前
寒冷的应助核桃采纳,获得30
1分钟前
wen发布了新的文献求助10
1分钟前
隐形曼青应助科研通管家采纳,获得10
1分钟前
科研通AI2S应助科研通管家采纳,获得10
1分钟前
MchemG应助科研通管家采纳,获得10
1分钟前
wen完成签到,获得积分10
1分钟前
1分钟前
1分钟前
1分钟前
yar应助wen采纳,获得10
1分钟前
核桃发布了新的文献求助30
1分钟前
迷人问兰发布了新的文献求助10
1分钟前
1分钟前
牛牛完成签到 ,获得积分10
2分钟前
时间煮雨我煮鱼完成签到,获得积分10
3分钟前
Plum22发布了新的文献求助10
3分钟前
BiuBiu怪完成签到,获得积分10
3分钟前
bkagyin应助陈苗采纳,获得10
4分钟前
核桃发布了新的文献求助10
4分钟前
Plum22完成签到 ,获得积分10
5分钟前
自由觅松发布了新的文献求助20
5分钟前
5分钟前
核桃发布了新的文献求助10
5分钟前
深情安青应助科研通管家采纳,获得10
5分钟前
科研通AI2S应助科研通管家采纳,获得10
5分钟前
阳阳阳发布了新的文献求助10
5分钟前
阳阳阳完成签到,获得积分10
5分钟前
5分钟前
5分钟前
CATH完成签到 ,获得积分10
5分钟前
6分钟前
zhanghao发布了新的文献求助10
6分钟前
Hillson完成签到,获得积分10
6分钟前
糯糯完成签到 ,获得积分10
6分钟前
6分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3990084
求助须知:如何正确求助?哪些是违规求助? 3532108
关于积分的说明 11256447
捐赠科研通 3271016
什么是DOI,文献DOI怎么找? 1805171
邀请新用户注册赠送积分活动 882270
科研通“疑难数据库(出版商)”最低求助积分说明 809228