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Thomassen, Brent (author)This project is focused on the development of circular and sustainable playground equipment (PE), as the Netherlands and its municipalities have set targets to become a Circular Economy in 2050. Furthermore, the PE should also encourage children to play outside more and engage in physical exercise. The reason for this being that children in the...master thesis 2024
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Bhuyan, Mohammad Amzad Hossain (author), Karkman, Antti (author), Prokkola, Hanna (author), Chen, B. (author), Perumal, Priyadharshini (author), Luukkonen, Tero (author)Alkali-activated foams are ceramic-like materials prepared at near-ambient temperature. This study investigates them for point-of-use water disinfection, thus providing an alternative to ceramic filters fired at a high temperature. Alkali-activated foams with different compositions were characterized for the porosity, mechanical strength,...journal article 2024
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Wang, Ranran (author), Zhang, Jun (author), Lu, Yijun (author), Ren, S. (author), Huang, Jiandong (author)The design of geopolymer concrete must meet more stringent requirements for the landscape, so understanding and designing geopolymer concrete with a higher compressive strength challenging. In the performance prediction of geopolymer concrete compressive strength, machine learning models have the advantage of being more accurate and faster....journal article 2024
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Chan, Ji Fan (author)Geopolymer concrete, a relatively new building material has been suggested as an alternative to Ordinary Portland Cement (OPC) based concretes for within the building sector, due to it having a relatively low CO2 emission during production. An issue with geopolymer concrete however, is that high amounts of early age creep, shrinkage and decrease...master thesis 2023
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Yang, Xinkui (author), Wu, Shaopeng (author), Xu, S. (author), Chen, B. (author), Chen, Dongyu (author), Wang, Fusong (author), Jiang, Jian (author), Fan, Lulu (author), Tu, Liangliang (author)Aimed to address the low utilization rate of steel slag (SS) and its challenge in resource utilization in China, this study developed ternary geopolymers made by high-content (50%) SS together with fly ash (FA) and granulated blast furnace slag (GBFS). The effects of GBFS content (0–40%) and curing methods (water curing, standard curing,...journal article 2023
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Lu, J. (author), Yang, Y. (author), van der Ham, H.W.M. (author), Fu, Danny (author)Geopolymer concrete is a new alternative material to conventional concrete with less carbon dioxide emissions. Researchers have reported much research on the material properties of geopolymer concrete. However, research on the behaviour of this newmaterial at the structural level is still limited, especially at a full-scale structural level....conference paper 2023
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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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Paredes Pineda, Jose (author)Upscaling of two geopolymer concrete mixtures in an individual prestressed girder in self-compacting geopolymer concrete (SCGC) with a topping layer cast in-situ by a ready-mix geopolymer concrete provider. The objective is to study the different material properties of the mixtures, determine their impact in the structural performance and define...master thesis 2022
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Boudouan, Youssra (author)After water, concrete is the most used substance on the planet. Approximately three tonnes of concrete is produced per person annually (Gagg, 2014). Traditionally, large amounts of Ordinary Portland Cement (OPC) are needed for the production of concrete. The production of OPC is very energy intensive and therefore a major generator of carbon...master thesis 2022
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- Ye, G. (author) journal article 2022
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Shah, Anjali (author)Global climate change has been a huge matter of concern today. While there are several factors that contribute to greenhouse gases, adversely affecting the planet, CO2 emission is one of them. It is said that 8% of total carbon dioxide emission is caused due to the production of Ordinary portland cement used for concrete in...master thesis 2021
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Wang, Yi (author), Zhang, Mingzhong (author)Strain hardening geopolymer composites (SHGC) as a tailored group of fibre reinforced geopolymer composites are featured by large tensile strain capacity with multiple micro-cracks. This paper experimentally investigates the strain hardening behaviour of SHGC in terms of flexural stress-deflection response, failure mode and cracking, flexural...conference paper 2021
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Krajnović, Ivana (author), Matthys, Stijn (author)Repair mortars are costly materials with high level of Portland cement and various additives which questions their eco-efficiency. In this respect, cement free material solutions such as alkali-activated mortars based on ground granulated blast furnace slag (BFS) are gaining interest for structural repair. The aim of this research is to study...conference paper 2021
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Gailitis, R. (author), Sprince, A. (author), Pakrastins, L. (author), Korniejenko, K. (author), Kozlovskis, T. (author)Low calcium alkaline solution activated cement composite, or geopolymer concrete has been around for about 40 years. The main benefit of this material - it is partially made by utilising waste products, such as fly-ash, slags and others. It has been claimed that the manufacturing of various geopolymer binder produces up to 6 times less CO2 than...conference paper 2021
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Wan, Xiaomei (author), Shen, Chen (author), Zhao, Tiejun (author)Ultra-high toughness geopolymer composites (UHTGC) were fabricated based on the matrix of binder composed of alkali-activated fly-ash and granulated blast furnace slag and polyvinyl alcohol (PVA) fibres in this research. The tensile behaviour and fracture toughness of UHTGC are investigated on both macro and microscales experimentally and...conference paper 2021
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Wei, L. (author), Li, Z. (author), Ye, G. (author), Rietveld, L.C. (author), van Halem, D. (author)Excessive F<sup>-</sup> in drinking water due to natural and anthropogenic activities is a serious health hazard affecting humans worldwide. In this study, a comparative assessment was made of eight mineral-based materials with advantageous structural properties for F<sup>-</sup> uptake: layered-double-hydroxides (LDHs), geopolymers,...journal article 2021
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Abbasi, Anas (author)Alkali-activated concrete (AAC) has emerged as an environmentally friendly alternative to conventional concrete, as It is a cement-free concrete made by activating precursors (mainly low-cost, low-CO2 industrial by-products) with alkalis. AAC has demonstrated some remarkable mechanical properties and long-term performance (e.g., high strength,...bachelor thesis 2020
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König, A. (author), Mahmoud, Hitham (author), Baehre, Oliver (author), Dehn, Frank (author)This paper investigates the development of the alkalinity and its impact on carbon steel reinforcement embedded in alkali-activated fly ashes (AAFA) and alkali-activated fly ashes with ten percentage mass (wt%) of blast furnace slag (AAFAS)-based materials (geopolymer–GP). The pH analysis of eluates indicates a remarkable decrease of...journal article 2020
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Zhang, Shizhe (author), Li, Victor C. (author), Ye, G. (author)Strain-hardening geopolymer composite (SHGC) lately emerged as a promising alternative to traditional strain-hardening cementitious composite with added advantages of industrial by-product utilization and enhanced sustainability. However, as the design of SHGC requires multi-factor optimization, the application of traditional trial-and-error...journal article 2020
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Meek, Maarten (author)To realise more sustainable industrial ground floors the implementation of alkali-activated concrete is considered for jointless elastically supported ground floors. Such floors are realised with large areas without dilations, the shrinkage reduction is therefore restrained causing cracks to arise at the top surface of the floor. The control of...master thesis 2019
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