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Chen, B. (author)In recent years, considerable attention has been given to the utilization of municipal solid waste incineration (MSWI) bottom ash as a mineral resource for construction materials. MSWI bottom ash is the primary residue discharged after incinerating municipal solid waste. The generation of MSWI bottom ash is increasing dramatically with the wide...doctoral thesis 2023
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Wu, Haoming (author)Alkali-activated material (AAM) is one of the most attractive alternatives to ordinary Portland cement (OPC). Recently, more and more research interests are devoted to durability performance. In cold areas, freeze-thaw resistance is a crucial durability factor for concrete. However, the understanding of the freeze-thaw resistance of AAMs is...master thesis 2023
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Vasileiadis, A. (author), Li, Yuqi (author), Lu, Yaxiang (author), Hu, Yong Sheng (author), Wagemaker, M. (author)There are several questions and controversies regarding the Na storage mechanism in hard carbon. This springs from the difficulty of probing the vast diversity of possible configurational environments for Na storage, including surface and defect sites, edges, pores, and intercalation morphologies. In the effort to explain the observed voltage...journal article 2023
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Sun, Yubo (author), Miranda de Lima Junior, L.C. (author), Rossi, Laura (author), Jiao, Dengwu (author), Li, Z. (author), Ye, G. (author), De Schutter, Geert (author)To better understand early stiffening of AAS pastes, distinctive microstructural features by varying the silicate modulus (Ms) have been visualized with in-situ microscopy. In addition, the activation reaction was monitored with multiple approaches, while solid and liquid phases in hydrating AAS were characterized separately. In silicate...journal article 2023
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Zhang, S. (author)Alkali-activated Materials (AAMs), including those classified as geopolymer, are obtained through the reaction between a solid precursor and an alkaline solution. Compared with ordinary Portland cement (OPC) binders, these materials maintain comparable mechanical properties but have the advantage of reducing greenhouse gas emissions and...doctoral thesis 2022
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Firas Sameh Abdel-Karim Al-Share', FIras (author)Research about alkali-activated materials or geopolymers has increased in the past decade as they are regarded as a potential replacement to cement-based materials. This is due to the fact that alkali-activated materials possess several advantages over cement-based materials, and the most important one is that they are more sustainable to the...master thesis 2022
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van Rijswijk, Tom (author)Alkali activated concrete is seen as possible contender to alleviate the environmental footprint of the concrete industry. The goal of this research is to evaluate the extend to which ground granulated blast furnace slag and calcined clay-based alkali activated concrete can be utilized in concrete revetment applications with equal performance in...master thesis 2022
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Masulli, Marco (author), Liu, Z. (author), Guo, Feng Zhi (author), Li, Xue (author), Sudhölter, Ernst J. R. (author), Kumar, N. (author)Chemical loss such as surfactants and alkalis by adsorption to reservoir rock surface is an important issue in enhanced oil recovery (EOR). Here, we investigated the adsorption behaviors of anionic surfactants and alkalis on silica for the first time as a function of temperature using quartz crystal microbalance with dissipation (QCM-D). The...journal article 2022
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Yang, Zhengxian (author), Shi, Peng (author), Zhang, Yong (author), Li, Z. (author)The influences of liquid-binder ratio and mixing sequence on the performance of superabsorbent polymer (SAP)-containing alkali-activated slag (AAS) mortar are investigated in this study. It is found that the SAP absorbs much less liquid in upper supernatant of AAS than in water. Mixing SAP with liquid first induces a larger absorption...journal article 2022
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Ren, Jie (author), Zhang, Lihai (author), Zhu, Yingcan (author), Li, Z. (author), San Nicolas, Rackel (author)This study compares the degradation behavior of the alkali-activated slag/fly ash (AASF) and ordinary Portland cement (OPC) mortars exposed to phosphoric acid with different pH values. The experimental results show that AASF mortars exhibit better resistance than OPC mortars against surface damage, although both systems get white deposits on the...journal article 2022
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Zitha, P.L.J. (author), Guo, H. (author)Capillary forces result in the trapping of the oleic phase in porous media even after extensive flushing with brine. Alkali-surfactant-polymer formulations drastically diminish capillary forces, whereas adding polymer to the water phase increases viscous forces, resulting in highly efficient extraction of the residual oil. However, by virtue...journal article 2022
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Yin, Kangting (author), Jiang, Yaqing (author), Wang, Yu (author), Zhao, Wenhao (author), Pan, Zhenghua (author), Li, Z. (author)One-part alkali-activated slag (AAS) as a binder material has a promising application in the construction industry. The properties of one-part AAS incorporating agricultural wastes have been seldom studied. In this paper, the fresh and hardened properties of one-part AAS with the addition of rice straw powder (RSP) were investigated. The...journal article 2022
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Gluth, Gregor J.G. (author), Ke, Xinyuan (author), Vollpracht, Anya (author), Weiler, Lia (author), Bernal, Susan A. (author), Dombrowski-Daube, Katja (author), Geddes, Daniel A. (author), Grengg, Cyrill (author), Nedeljković, Marija (author)The current understanding of the carbonation and the prediction of the carbonation rate of alkali-activated concretes is complicated inter alia by the wide range of binder chemistries used and testing conditions adopted. To overcome some of the limitations of individual studies and to identify general correlations between mix design...journal article 2022
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Sun, Beibei (author), Ye, G. (author), de Schutter, Geert (author)Alkali-activated materials (AAM) are known to be environmentally friendly alternatives to cement-based materials because they can potentially reduce greenhouse gas emissions and reutilize industrial by-products/wastes. To study the factors influencing the strength of slag based alkali-activated materials (BFS-AAM), fly ash based alkali...review 2022
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Sun, Yubo (author), Ghorbani, Saeid (author), Dai, Xiaodi (author), Ye, G. (author), De Schutter, Geert (author)This study provides a detailed investigation on the reproducibility of two groups of alkali-activated slag (AAS) mixtures, from both fresh properties and strength development perspectives. Three different commercial sodium silicate solutions and one lab-produced silicate activator (made of silica fume and sodium hydroxide) were used to...journal article 2022
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Sun, Yubo (author), Liu, Zhiyuan (author), Ghorbani, Saeid (author), Ye, G. (author), De Schutter, Geert (author)The present study explores the possibility of replacing blast furnace slag (BFS) with coal fly ash (FA) to produce alkali-activated material (AAM) concrete with hybrid precursors. With an increased FA replacement ratio, the reaction kinetics, fresh and hardened properties of AAM mixtures have been investigated. The retardation effect on the...journal article 2022
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Rossi, Laura (author), Miranda de Lima Junior, L.C. (author), Sun, Yubo (author), Dehn, Frank (author), Provis, John L. (author), Ye, G. (author), De Schutter, Geert (author)The production of cement and concrete contributes significantly to global greenhouse gas emissions. Alkali‐activated concretes (AACs) are a family of existing alternative construction materials that could reduce the current environmental impact of Portland cement (PC) production and utilisation. Successful applications of AACs can be found in...journal article 2022
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Yang, Zhengxian (author), Shi, Peng (author), Zhang, Yong (author), Li, Z. (author)Internal curing by superabsorbent polymer (SAP) has been applied in alkali-activated slag (AAS) systems by a few previous studies with the purpose to mitigate the autogenous shrinkage. However, the effects of SAP on other properties of AAS have been rarely studied. In this paper, the workability, strength, permeability, and frost resistance...journal article 2022
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Li, Z. (author), Liang, X. (author), Liu, C. (author), Liang, M. (author), van Breugel, K. (author), Ye, G. (author)This study investigates the deformation of free and stress of restrained alkali-activated slag concrete (AASC), respectively, under semi-adiabatic condition. The concrete shows first thermal expansion, which is compensated soon by autogenous shrinkage. The subsequent cooling down of the concrete aggravates shrinkage and development of tensile...journal article 2022
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- Ye, G. (author) journal article 2022