已入深夜,您辛苦了!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!祝你早点完成任务,早点休息,好梦!

Preparation of foam concrete from solid wastes: Physical properties and foam stability

材料科学 热重分析 抗压强度 差示扫描量热法 傅里叶变换红外光谱 磨细高炉矿渣 扫描电子显微镜 粉煤灰 复合材料 发泡剂 原材料 水泥 化学工程 化学 多孔性 有机化学 工程类 物理 热力学
作者
Rui Guo,Caihong Xue,Weichao Guo,Shuai Wang,Yuxuan Shi,Yongxiang Qiu,Qingxin Zhao
出处
期刊:Construction and Building Materials [Elsevier BV]
卷期号:408: 133733-133733 被引量:21
标识
DOI:10.1016/j.conbuildmat.2023.133733
摘要

The method for preparation of foam concrete from solid wastes were proposed in this study, where soda residue (SR), calcium carbide slag (CS), grand granulated blast-furnace slag (GGBS) and fly ash (FA) were used as raw materials for the binder and Al powder was used as the foam agent. The effects of Al powder, stabilisers and FA content on the dry density as well as compressive strength were assessed to determine the optimal mix proportions. Moreover, to understand the foaming process, the influence of stabilisers on the zeta potential and surface tension of the fresh mixes were measured and Low-Field Nuclear Magnetic Resonance (LF-NMR) was employed to qualitatively characterize the pore size distribution. Finally, the hydration products were analyzed by X-Ray Diffraction (XRD), Fourier transform infrared spectrometer (FTIR), Thermogravimetric Analysis-Differential scanning calorimetry (TGA-DSC), Scanning electron microscope-Energy dispersive X-ray spectroscopy (SEM-EDS). The results suggested that the optimal content of Al powder was 1–2%, and the combination of S and P (SP) stabilisers showed better stabilization effect than the single use of S or P, leading to well distributed foam with smaller size. The stabilization effect was attributed to the dissolved negative complex that absorbed on the foam film to increase the repulsion between foams as well as to reduce the surface tension of the fresh mixture. The substitution of GGBS by FA generally resulted in reduced dry density and compressive strength, while the extent varied with the addition of stabilizers, and thus the optimal amount of FA depended on the selection of stabilisers. Overall, our study highlighted the potential of using industrial waste materials for producing sustainable light weight concrete with satisfactory dry density and compressive strength.
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
脑洞疼应助fly采纳,获得10
3秒前
4秒前
6秒前
9秒前
10秒前
So完成签到 ,获得积分10
11秒前
樱偶猫完成签到,获得积分10
12秒前
网上飞完成签到,获得积分10
15秒前
林洁佳发布了新的文献求助10
17秒前
飞快的孱完成签到,获得积分10
24秒前
Kevin完成签到,获得积分10
26秒前
Steven发布了新的文献求助10
27秒前
29秒前
Andy完成签到,获得积分10
29秒前
科研女仆完成签到 ,获得积分10
30秒前
沐风发布了新的文献求助10
32秒前
年轻幻柏完成签到,获得积分10
32秒前
淡定从霜完成签到 ,获得积分10
33秒前
小凯完成签到 ,获得积分10
34秒前
orixero应助芯之痕采纳,获得10
38秒前
搜集达人应助田一点采纳,获得10
41秒前
42秒前
43秒前
苗条的立果完成签到 ,获得积分10
43秒前
47秒前
48秒前
2025alex完成签到,获得积分10
49秒前
Ava应助zwd采纳,获得10
51秒前
hh完成签到 ,获得积分10
51秒前
55秒前
沐风发布了新的文献求助10
57秒前
59秒前
HRZ完成签到 ,获得积分10
1分钟前
Xhh发布了新的文献求助10
1分钟前
柚子完成签到 ,获得积分10
1分钟前
李爱国应助整齐谷芹采纳,获得30
1分钟前
Doki发布了新的文献求助10
1分钟前
YDX驳回了孙孙应助
1分钟前
小汤完成签到 ,获得积分20
1分钟前
路冰完成签到,获得积分10
1分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3976583
求助须知:如何正确求助?哪些是违规求助? 3520659
关于积分的说明 11204399
捐赠科研通 3257298
什么是DOI,文献DOI怎么找? 1798683
邀请新用户注册赠送积分活动 877842
科研通“疑难数据库(出版商)”最低求助积分说明 806595