Experimental investigation of mortar mechanical properties for glass brick masonry

Fíla, Jiří; Eliášová, Martina; Sokol, Zdeněk

doi:10.1007/s40940-018-0085-6

Cited by 7 publications

(9 citation statements)

References 3 publications

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“…Besides adhesives, cement-based mortars, conventionally applied in bonding hollow glass bricks, can also be considered for solid glass block assemblies. Cementbased mortars and tile adhesives demonstrate an excellent gap-filling capability (optimum joint thickness for solid-glass block assemblies is suggested to be 3-7 mm by (Fíla et al 2019)), allowing for an easy assembly by a conventional building crew. Compared to stiff and flexible adhesives, they are considerably less expensive and their application is less sensitive to site conditions such as temperature, moisture and dust (Fíla et al 2019).…”

Section: Cement-based Mortars and Tile Adhesivesmentioning

confidence: 99%

“…Cementbased mortars and tile adhesives demonstrate an excellent gap-filling capability (optimum joint thickness for solid-glass block assemblies is suggested to be 3-7 mm by (Fíla et al 2019)), allowing for an easy assembly by a conventional building crew. Compared to stiff and flexible adhesives, they are considerably less expensive and their application is less sensitive to site conditions such as temperature, moisture and dust (Fíla et al 2019). They typically set within 24-48 h but require a considerable amount of time (typically 28 days) to fully harden.…”

Section: Cement-based Mortars and Tile Adhesivesmentioning

confidence: 99%

“…Another consideration is that cementbased mortars and tile adhesives require a rougher surface to achieve a good adhesion; this is contradictory to the characteristic glossy, smooth finishing surface of solid cast glass components. Experimental work on solid glass blocks with a smooth finishing surface bonded with a selection of cement-based mortars by (Fíla et al 2019) indicated an adhesion failure mode and a shear strength considerably lower than 1 MPa. In comparison, specimens comprising glass bricks with a sandblasted surface presented a higher shear strength.…”

Section: Cement-based Mortars and Tile Adhesivesmentioning

confidence: 99%

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Adhesive solutions for cast glass assemblies: ground rules emerging from built case studies on adhesive selection and experimental validation

Oikonomopoulou

Bristogianni

2022

Glass Struct Eng

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Cast glass is a promising, three-dimensional expression of the material for architectural and structural applications, particularly for the creation of all-transparent, self-supporting structures and envelopes. Typically applied in the form of solid blocks, cast glass components can be used as repetitive units to comprise fully-transparent, cast glass masonry walls. To maximize transparency and ensure an even load distribution, the glass blocks are bonded together by a colourless adhesive. Currently, there is a lack of standardized structural specifications, strength data and building guidelines for such adhesively-bonded cast glass-block systems. As a result, any new application is accompanied by experimental testing to select the adhesive and certify the adhesively bonded system. Since the choice of adhesive is highly dependent on the prerequisites set for each case-study -such as the structural and visual performance, available budget, the structure’s geometry and climate conditions- the preselection of the most prominent adhesive family at an early project stage can prevent an excessive budget and construction complications. This paper, therefore, aims to shed light on the selection process of adhesives for cast glass assemblies by first providing an overview of the most suitable bonding media families for such systems; these include stiff adhesives, flexible adhesives and cement-based mortars. Following, the paper reviews the research & development process of the adhesively-bonded glass-block systems in three distinct built projects, in which the TU Delft team has been involved: The Crystal Houses façade (NL), the LightVault, a robotically assembled glass vault (UK) and the Qaammat pavilion in the arctic circle (GL). The adhesive requirements for each of the three case studies are discussed in terms of structural and visual performance and ease-of-assembly (constructability). These criteria are decisive in pointing out the most promising bonding media family per case-study. The final shortlist of adhesive candidates within that bonding media family is subject to the full list of performance criteria, but also to market availability. The shortlist of adhesive candidates are typically experimentally evaluated, first via application testing and then via strength tests in order to choose the most suitable candidate. Based on the above, the review concludes in proposing guidelines for the effective selection, design and experimental verification of adhesively-bonded cast glass assemblies.

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Section: Cement-based Mortars and Tile Adhesivesmentioning

confidence: 99%

Section: Cement-based Mortars and Tile Adhesivesmentioning

confidence: 99%

Section: Cement-based Mortars and Tile Adhesivesmentioning

confidence: 99%

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Adhesive solutions for cast glass assemblies: ground rules emerging from built case studies on adhesive selection and experimental validation

Oikonomopoulou

Bristogianni

2022

Glass Struct Eng

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“…These experiments are part of a long-term research on glass brick masonry, see. (Fíla, Eliášová, & Sokol, 2017, 2018. Three-point bending test were done on MTS Qtest 100 testing machine (maximum load 100 kN).…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of solid glass bricks

Fíla

Eliášová

Sokol

2019

Modern Building Materials, Structures and Techniques (MBMST)

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Glass as one of the oldest building materials has been used for centuries to fill window openings. In recent years is it increasingly used also for load-bearing structural elements such as beams, columns, ribs, railings, etc. In addition to flat glass and hollow glass blocks, which have been used historically for non-load-bearing partitions and facades, new load bearing structures from solid glass bricks are arising. Their greater use is hampered by a lack of knowledge of their material properties. Also, their joining is difficult, as can be seen from the realized structures and published works focused on the glass bricks masonry. Most often, transparent adhesives or special mortars are used on the joint between glass bricks. In addition to some examples of completed glass brick structures, the paper is aimed at determining the material properties of glass bricks, which are a prerequisite for the design of safe structures. Two sets of experiments were performed. There were made three-point bending tests and compression tests to determine the bending tensile strength, modulus of elasticity and compressive strength of glass bricks.

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“…Using glass bricks in masonry walls to a greater extent could be the future. The last paper in this issue by Fíla et al (2018), presents an experimental investigation of the mechanical properties of the mortar used for glass bricks.…”

mentioning

confidence: 99%

Glass is all around us!

et al. 2018

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Glass is all around us, has been so for many years and will continue to be for years to come. Most people associate glass with windows and facades. However, a perception of glass as a resistant and load carrying material used for structural key elements seems to be increasingly present in the engineering society. Considering the publications and conferences over the last couple of years, the number of universities and especially young researchers involved in the field of glass research for the built environment seems to be increasing as well. All of which makes it an even more important task for all of us working in the field, whether it is engineering, academia, research, development, production or design

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Experimental investigation of mortar mechanical properties for glass brick masonry

Cited by 7 publications

References 3 publications

Adhesive solutions for cast glass assemblies: ground rules emerging from built case studies on adhesive selection and experimental validation

Adhesive solutions for cast glass assemblies: ground rules emerging from built case studies on adhesive selection and experimental validation

Mechanical properties of solid glass bricks

Glass is all around us!

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