Fred Veer
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View article: The strength of waterjet cut float glass
The strength of waterjet cut float glass Open
For well over a millennium glass has been “cut” by scoring it with a diamond or similar hard material and bending it putting the score into tension. The result is a “clean” break of the glass along the score. As this has sharp edges, nowad…
View article: New insights into the interpretation of the results of four point bending tests on float glass
New insights into the interpretation of the results of four point bending tests on float glass Open
The four point bending test is one of the most commonly used and standardised tests to determine the mechanical properties of materials. For its use on float glass there are both the ASTM C158-02R17 and European EN 1288-3:2001 standards. H…
View article: A Novel Method for the Non-Destructive Assessment of Strength Degradation and Re-Use Potential of Weathered Float Glass From Facades: A Proof of Concept Study
A Novel Method for the Non-Destructive Assessment of Strength Degradation and Re-Use Potential of Weathered Float Glass From Facades: A Proof of Concept Study Open
Lack of knowledge about the properties of weathered (used) glass is currently a major barrier to glass reuse. This results in probably unnecessary recycling or down-cycling of architectural glass at the end of life. Avoiding this creates a…
View article: Elastic Modulus and Hardness of Potassium Tantalum Germanate Glasses and Glass-Ceramics
Elastic Modulus and Hardness of Potassium Tantalum Germanate Glasses and Glass-Ceramics Open
Whilst the optical and structural properties of the glasses containing tantalum oxide have been considerably investigated, research into their mechanical properties is not substantially established. This work reports on the mechanical char…
View article: Small Hard Body Impact on Annealed, Heat Strengthened and Fully Tempered Laminated Glass
Small Hard Body Impact on Annealed, Heat Strengthened and Fully Tempered Laminated Glass Open
Neglecting the accidental soccer or golf ball hitting the window of the neighbors in a movie, actual impact on glass is rare. In architecture, the only significant case in the literature is where a fully tempered laminated panel of the New…
View article: Thermal, optical and mechanical properties of new glass compositions containing fly ash
Thermal, optical and mechanical properties of new glass compositions containing fly ash Open
The investigation of new compositions is crucial for the expansion of possible applications of glass, from the typical applications for building engineering, in the form of cast blocks or float glass, to more advanced technologies, such as…
View article: Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6
Challenging Glass Conference Proceedings, Vol. 6 (2018): Challenging Glass 6 Open
Laminated glass provides safety in an impact or explosion event by way of a polymer interlayer to which glass fragments adhere upon fracture. The mechanical deformation of the interlayer defines how the impact energy can be absorbed to pre…
View article: Exploratory Study on the Fracture Resistance of Cast Glass
Exploratory Study on the Fracture Resistance of Cast Glass Open
The emerging interest in the architectural applications of cast glass components reveals a knowledge gap on the mechanical properties of cast glass. Apart from its chemical composition, cast glass is characterized by its manufacturing hist…
View article: Fill-in-Glass Restoration: Exploring Issues of Compatibility for the Case of Schaesberg Castle
Fill-in-Glass Restoration: Exploring Issues of Compatibility for the Case of Schaesberg Castle Open
This paper explores a novel restoration approach for consolidating historic structures using structural glass to substitute for the missing elements, preserving at the same time the structural integrity of the structure. A restoration desi…
View article: Demonstration of the Structural Resiliency of Damaged Sentryglas Laminated Heat Strengthened Glass Fins in Full Scale Testing
Demonstration of the Structural Resiliency of Damaged Sentryglas Laminated Heat Strengthened Glass Fins in Full Scale Testing Open
A unique structural design was made for the glass façade of the Co-Creation Center building in Delft. The roof is completely carried by the glass fins. The fins are laterally stabilized by being included in the triple glazed façade. To cer…
View article: GS&E journal > Investigating the flexural strength of recycled cast glass
GS&E journal > Investigating the flexural strength of recycled cast glass Open
Currently, tons of high quality commercial glass are down-cycled or landfilled due to contaminants that prevent close-loop recycling. Yet, this glass is potentially a valuable resource for casting robust and aesthetically unique building c…
View article: Façade becomes structure
Façade becomes structure Open
The Green Village at the TU Delft is a living lab for sustainable innovations. The Co Creation Centre will be their new meeting centre. This centre is getting a climate tower and to get the isolation standards, triple glass was necessary. …
View article: The development and testing of large sandwich panels
The development and testing of large sandwich panels Open
The TU Delft glass group designed, developed and build three glass sandwich panels for the Glasstec 2018 in collaboration with ARUP. These were composed of heat strengthened laminated float glass with Schott glass tubes as the core. Initia…
View article: Production and Performance of Heat Bonded Glass Connections
Production and Performance of Heat Bonded Glass Connections Open
Connecting glass with heat bonds is a way to create all-transparent glass structures. Two methods have been researched in theory and practice, glass welding, through local heating, and glass fusion through global heating. Both methods have…
View article: Re^3 Glass
Re^3 Glass Open
The applicability of glass in structures is continuously ascending, as the transparency and high compressive strength of the material render it the optimum choice for realizing diaphanous structural components that allow for light transmit…
View article: Terra–Ink
Terra–Ink Open
In recent years, natural disaster and military conflicts forced vast numbers of people to flee their home countries, contributing to the migration crisis we are facing today. According to the UNHCR, the number of forcibly displaced people …
View article: The effect of manufacturing flaws in the meso-structure of cast glass on the structural performance
The effect of manufacturing flaws in the meso-structure of cast glass on the structural performance Open
The success of projects such as the Crystal Houses façade in Amsterdam has triggered an increasing interest from architects, engineers and glass producers in the development and application of structural cast glass components. This interes…
View article: Dry interlayers out of cast polyurethane rubber for interlocking cast glass structures: Experimental exploration and validation
Dry interlayers out of cast polyurethane rubber for interlocking cast glass structures: Experimental exploration and validation Open
A novel, reversible structural system comprising interlocking, dry-assembled cast glass components is currently being developed at the TU Delft Glass & Transparency Lab. This paper, in continuation of the research conducted by (Oikonom…
View article: Education on Structural Glass Design: Redefining glass through the design of innovative, full-glass structures.
Education on Structural Glass Design: Redefining glass through the design of innovative, full-glass structures. Open
In many famous architectural works, it is the structure and materiality of the building that manifest the project’s innovation. In such works, the structural system of the building becomes the primary form of expression. Ergo, the ability …
View article: Limestone and Calcined Clay-Based Sustainable Cementitious Materials for 3D Concrete Printing: A Fundamental Study of Extrudability and Early-Age Strength Development
Limestone and Calcined Clay-Based Sustainable Cementitious Materials for 3D Concrete Printing: A Fundamental Study of Extrudability and Early-Age Strength Development Open
The goal of this study is to investigate the effects of different grades of calcined clay on the extrudability and early-age strength development under ambient conditions. Four mix designs were proposed. Three of them contained high, mediu…
View article: The Effect of Viscosity-Modifying Admixture on the Extrudability of Limestone and Calcined Clay-Based Cementitious Material for Extrusion-Based 3D Concrete Printing
The Effect of Viscosity-Modifying Admixture on the Extrudability of Limestone and Calcined Clay-Based Cementitious Material for Extrusion-Based 3D Concrete Printing Open
To investigate the effects of viscosity-modifying admixture (VMA) on the extrudability of limestone and calcined clay-based cementitious materials, three mix designs with different dosages of VMA were proposed in this study. The ram extrus…
View article: Structural cast glass components manufactured from waste glass : Diverting everyday discarded glass from the landfill to the building industry
Structural cast glass components manufactured from waste glass : Diverting everyday discarded glass from the landfill to the building industry Open
Although in theory glass can be endlessly re-melted without loss in quality, in practice only a small percentage gets recycled, mainly by the packaging industry. Most of the discarded glass fails to pass the high quality standards of the p…
View article: Interlocking cast glass components, Exploring a demountable dry-assembly structural glass system
Interlocking cast glass components, Exploring a demountable dry-assembly structural glass system Open
This paper explores the potential of a novel, reversible all-glass system consisting of dryassembly, interlocking cast glass components. Owing to its interlocking geometry, the proposed system can attain the desired stiffness with the aid …
View article: An overview of some recent developments in glass science and their relevance to quality control in the glass industry
An overview of some recent developments in glass science and their relevance to quality control in the glass industry Open
The classical image of glass is that of a rigid, transparent brittle material characterized by a non-crystalline microstructure. This 19th and 20th century image however is mostly based on the contrast between soda lime glass and metals. I…
View article: Structural glass : A new remedial tool for the consolidation of historic structures
Structural glass : A new remedial tool for the consolidation of historic structures Open
This research investigates the potential of glass as a new design tool to highlight and safeguard our historic structures. Current restoration and conservation treatments with traditional materials bear the risk of conjecture between the o…