693.932 PEOPLE
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Çopuroğlu, O.
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (65/65 displayed)
- 2024Quantification of surface grinding during the sample preparation of cementitious materials by optical profilometry
- 2024Evaluation of the Non-destructive Character of the Stiffness Damage Test for Damage Assessment of Concrete Structures Affected by Alkali-Silica Reaction Using Acoustic Emission
- 2024An analytical equation to predict mortar spalling at laboratory scalecitations
- 2023An approach to develop set-on-demand 3D printable limestone-calcined clay-based cementitious materials using calcium nitratecitations
- 2023Non-destructive screening methodology based on handheld XRF for the classification of concretecitations
- 2022Feasibility study of using desalination brine to control the stiffness and early-age hydration of 3D printable cementitious materialscitations
- 2022EDS Microanalysis of Unhydrated Blast Furnace Slag Grains in Field Concrete with Different Service Lifecitations
- 2022Surface effects of molten slag spills on calcium aluminate cement pastecitations
- 2022Effect of slags of different origins and the role of sulfur in slag on the hydration characteristics of cement-slag systemscitations
- 2022Nano-modification in digital manufacturing of cementitious compositescitations
- 2022Influence of self-healing induced by polylactic-acid and alkanoates-derivates precursors on transport properties and chloride penetration resistance of sound and cracked mortar specimenscitations
- 2021Thermal, optical and mechanical properties of new glass compositions containing fly ash
- 2021Characterization of air-void systems in 3D printed cementitious materials using optical image scanning and X-ray computed tomographycitations
- 2021Elephant skin formation on UHPC surfacecitations
- 2021Freeze-thaw resistance and air-void analysis of concrete with recycled glass-pozzolan using X-ray micro-tomographycitations
- 2021Hydration heat, strength and microstructure characteristics of UHPC containing blast furnace slagcitations
- 2021A study of the elastic moduli and chemical composition of corrosion product naturally-generated due to chlorides through nano-indentation and energy dispersive X-ray spectrometry (EDS)
- 2021Analysis of naturally-generated corrosion products due to chlorides in 20-year old reinforced concretecitations
- 2021Assessment of the self-healing capacity of cementitious materials through active thin sectionscitations
- 2021Sodium silicate/polyurethane microcapsules synthesized for enhancing self-healing ability of cementitious materialscitations
- 2021Sustainable materials for 3D concrete printingcitations
- 2021Assessment of freeze-thaw resistance of cement based concrete with ground glass – pozzolan through X-ray microtomography
- 2020Improving printability of limestone-calcined clay-based cementitious materials by using viscosity-modifying admixturecitations
- 2020Effect of printing parameters on interlayer bond strength of 3D printed limestone-calcined clay-based cementitious materialscitations
- 2020The influence of defects at the steel/concrete interface for chloride-induced pitting corrosion of naturally-deteriorated 20-years-old specimens studied through X-ray Computed Tomographycitations
- 2019The Effect Of Viscosity Modifier Agent On The Early Age Strength Of The Limestone And Calcined Clay-Based Sustainable And 3D Printable Cementitious Material
- 2019The influence of defects at the steel/concrete interface for pitting corrosion initiation studied through X-ray Computed Tomography and image analysiscitations
- 2019Experimental and numerical study on mechanical properties of cement paste pipes subjected to uniaxial tensile loadingcitations
- 2019Effect of viscosity modifier admixture on Portland cement paste hydration and microstructurecitations
- 2019Re-curing of calcium aluminate cements post contact with molten slag
- 2019Limestone and Calcined Clay-Based Sustainable Cementitious Materials for 3D Concrete Printingcitations
- 2019Feasibility of Using Low CO2 Concrete Alternatives in Extrusion-Based 3D Concrete Printingcitations
- 2019The Effect of Viscosity-Modifying Admixture on the Extrudability of Limestone and Calcined Clay-Based Cementitious Material for Extrusion-Based 3D Concrete Printingcitations
- 2019An approach to develop printable strain hardening cementitious compositescitations
- 2018Piezoresistive properties of cementitious composites reinforced by PVA fibrescitations
- 2018Innovative Glass Recipes Containing Industrial Waste Materials
- 2018Chloride Ingress of Carbonated Blast Furnace Slag Cement Mortarscitations
- 2018New phosphate glasses containing industrial waste and their applications for building engineering
- 2018Deliberate Deformation of Concrete in the Fresh Statecitations
- 2017The ageing of the creation
- 2017Assessment of concrete characteristics during the deliberate deformation of a flexible mould after casting
- 2016EH-pH- and main element analyses of Blast Furnace Slag Cement paste pore solutions activated with sodium monofluorophosphatecitations
- 2015Using nano-indentation and microscopy to obtain mechanical properties
- 2014Nondestructive determination of chloride concentration using Ag|AgCl electrodes produced by electrochemical anodization
- 2013Experimental techniques used to verify healingcitations
- 2012A tool for concrete performance assessment for ASR affected structures: An outlook
- 2010Modeling of expansion and cracking due to ASR with a 3D lattice model
- 2010Modelling and predicting effects of deterioration mechanisms
- 2009Selective nanoindentation analysis on polished-thin sections
- 2008Micromechanical and micromorphological features of dissolved alkarli-reactive basalt in the first hours of accelerated testing
- 2008Modelling asr expansions based on measurements of local properties of expanding gel
- 2008Application of bacteria as self-healing agent for the development of sustainable concrete
- 2008Effect of silica dissolution on the mechanica properties of alkali reactive basalt
- 2007Alkali-silicareactie, zoektocht naar het mechanisme
- 2007Concrete damage due to alkaili-silica reaction: a new method to dertemine the properties of the expansive gel
- 2007Combined experimental and modelling study on the expansions of concrete microbars due to ASR
- 2006Combined experimental and numerical investigation on the mechanism of frost salt scaling in cement mortars
- 2006Carbonation of opc and slag cement systems: mineralogical an morphological aspects
- 2006Carbonation of OPC and slag cement systems: mineralogical and morphological aspects
- 2006Effect of carbonation on the micro-mechanical properties and frost salt scaling of cement pastes: experimental and modelling aspects
- 2006Effect of na-MFP treatment on microstructure and frost salt scaling
- 2006Theoretical approach to calculate surface chloride content Cs of submerged concrete under sea water laden environment
- 2006Effect of extra-fine slag replacement on carbonation and frost salt scaling resistance of mortars
- 2005Modelling of deterioration mechanisms in concrete and mortar
- 2005Frost salt scaling modeling of cement paste
Places of action
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conferencepaper
Assessment of freeze-thaw resistance of cement based concrete with ground glass – pozzolan through X-ray microtomography
Abstract
Over the last few years, the United States has experienced a shortage of fly ash and slag that consequently created a need for an alternative material that is locally available, sustainable, and provides desirable concrete properties. Recent studies have shown that Ground Glass Pozzolan (GGP) offers favorable attributes as a supplementary cementitious material (SCM) for concrete. However, there are limited studies demonstrating freeze-thaw (FT) resistance of concrete with GGP, as well as assessing the FT resistance in relation with the air-void system of GGP mixtures. In response, this study aimed to evaluate both macro- and micro-level behavior of GGP on FT resistance, and characterize mixtures with different contents of GGP. Six concrete mixtures were evaluated: three mixtures with 20, 30, and 40% GGP as cement replacements and three other reference mixtures with 30% fly ash and 40% slag and 100% Ordinary Portland cement (OPC). Following ASTM standards, concrete beam samples were tested for accelerated FT resistance and dynamic modulus of elasticity up to 1000 cycles. All concretes showed high FT resistance with a durability factor over 90% and, consequently, minimal deterioration and scaling. Core samples extracted from the FT conditioned beams were scanned with the X-ray micro-tomography (CTscan) to identify air-void parameters. Through image analysis a quantification of air-void parameters was obtained, and their relationship to FT resistance was established. Using CT scan analysis, we demonstrated that concretes with the highest cement replacement with GGP and slag developed the most desirable spacing factor and specific surface for FT resistance.