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Baojun Cheng, Xiaowei Gu, Haoyue Hu, Yaning Kong and Pengyu Huang
There are some limitations in the application of tuff powder as a supplementary cementitious material (SCM). Exploring its feasibility in new fields will consume a large amount of silica-alumina mine solid wastes. This study has investigated the mechanic...
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Yuyan Zhao, Hanwen Luan, Binghan Yang, Zhenghe Li, Meitong Song, Bing Li and Xiaodan Tang
The huge annual output of coal fly ash is harmful to the environment, but it is widely used because of its good adsorption potential. In this study, using coal fly ash as a raw material and sodium hydroxide as an activator, a novel adsorbent was synthesi...
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Gabriela Rutkowska, Mariusz Zóltowski, Konstantin Rusakov, Katarzyna Pawluk, Joanna Andrzejak and Bogdan Zóltowski
CO2 emission limits introduced by the European Union are encouraging works on new-generation materials with reduced clinker content. Currently, fumed silica from hard coal combustion is used in cement and concrete technology in Europe and Poland. Its wid...
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Seyedsaleh Mousavinezhad, Judit M. Garcia, William K. Toledo and Craig M. Newtson
For several decades, class F fly ash has been an attractive supplementary cementitious material, at least in part, due to its ability to reduce Portland cement consumption and mitigate alkali-silica reactions in concrete. However, fly ash availability is...
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Masood Ur Rahman and Jing Li
This paper presents experimental investigations on epoxy mortar produced using industrial wastes. In some recent studies, coal bottom ash and polyethylene terephthalate (PET) waste have been chosen as a filler to replace sand, and fly ash and silica fume...
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Lei Sun, Chong Li, Zhijun Xu, Lianhai Tai, Yue Cao and Xiaowu Zhang
Insufficient stability of the top plate at the corner of an easily combustible coal seam comprehensive mining face may lead to a natural fire within the goaf. While corner sealing is crucial for minimizing air leakage, current sealing methods struggle to...
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Baifu An, Chenghao Cui, Jinfang Ren, Dongda Wang, Jiale Wang and Qiaomei Yi
To study the influences of different mix proportions of materials on the ultrasonic p-wave velocity of coal slime based backfill materials, influences of four factors on the p-wave velocity of specimens were investigated by designing orthogonal tests and...
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Ashfaque Ahmed Jhatial, Iveta Nováková and Eirik Gjerløw
Alternative to traditional concrete, sustainable concrete reduces cement content, waste management issues, and CO2 emissions. To achieve sustainable concrete, waste materials can be used as supplementary cementitious materials (SCMs) to partially replace...
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Arne Peys, Mateja Ko?ir, Ruben Snellings, Ana Mladenovic and Liesbeth Horckmans
New sources of supplementary cementitious materials (SCMs) are needed to meet the future demand. A potential new source of SCM is spent pot lining, a residue from aluminum production. The present work showed that the refined aluminosilicate part of spent...
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Thiago J. T. Cruz, Mariele I. S. Melo and Sibele Pergher
The synthesis of zeolites using waste as a source of Si and Al is well known, and light coal ash has been studied to minimize the problems of waste management and mitigate environmental effects. The residue used in this work was supplied by Coal Workers ...
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