scholarly journals Non Invasive Acoustic Measurements for Faults Detecting in Building Materials and Structures

10.5772/36537 ◽  
2012 ◽  
Author(s):  
Barbara De ◽  
Carlo Piga ◽  
Vlad Popescu ◽  
Giovanna Concu
Keyword(s):  
Building Materials ◽  
Acoustic Measurements ◽  
Non Invasive

scholarly journals Architectural ruins: geoculture of the anatomy of buildings as illustrated by Casa Ippolito, Malta

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Lino Bianco
Keyword(s):  
Material Culture ◽  
Building Materials ◽  
Raw Materials ◽  
Primary Source ◽  
Secondary Sources ◽  
Non Invasive ◽  
History Of ◽  
Aerial Vehicle ◽  
Materials Used ◽  
Building Physics

AbstractRuins are a statement on the building materials used and the construction method employed. Casa Ippolito, now in ruins, is typical of 17th-century Maltese aristocratic country residences. It represents an illustration of secondary or anthropogenic geodiversity. This paper scrutinises these ruins as a primary source in reconstructing the building’s architecture. The methodology involved on-site geographical surveying, including visual inspection and non-invasive tests, a geological survey of the local lithostratigraphy, and examination of notarial deeds and secondary sources to support findings about the building’s history as read from its ruins. An unmanned aerial vehicle was used to digitally record the parlous state of the architectural structure and karsten tubes were used to quantify the surface porosity of the limestone. The results are expressed from four perspectives. The anatomy of Casa Ippolito, as revealed in its ruins, provides a cross-section of its building history and shows two distinct phases in its construction. The tissue of Casa Ippolito—the building elements and materials—speaks of the knowledge of raw materials and their properties among the builders who worked on both phases. The architectural history of Casa Ippolito reveals how it supported its inhabitants’ wellbeing in terms of shelter, water and food. Finally, the ruins in their present state bring to the fore the site’s potential for cultural tourism. This case study aims to show that such ruins are not just geocultural remains of historical built fabric. They are open wounds in the built structure; they underpin the anatomy of the building and support insights into its former dynamics. Ruins offer an essay in material culture and building physics. Architectural ruins of masonry structures are anthropogenic discourse rendered in stone which facilitate not only the reconstruction of spaces but also places for human users; they are a statement on the wellbeing of humanity throughout history.

scholarly journals Architectural Ruins: Geoculture of the anatomy of buildings as illustrated by Casa Ippolito, Malta

2021 ◽  
Author(s):  
Lino Bianco
Keyword(s):  
Material Culture ◽  
Building Materials ◽  
Raw Materials ◽  
Primary Source ◽  
Secondary Sources ◽  
Non Invasive ◽  
History Of ◽  
Aerial Vehicle ◽  
Materials Used ◽  
Building Physics

Abstract Ruins are a statement on the building materials used and the construction method employed. Casa Ippolito, now in ruins, is typical of seventeenth-century Maltese aristocratic country residences. It represents an illustration of secondary or anthropogenic geodiversity. This paper scrutinises these ruins as a primary source in reconstructing the building’s architecture. The methodology involved on-site geographical surveying, including visual inspection and non-invasive tests, a geological survey of the local lithostratigraphy, and examination of notarial deeds and secondary sources to support findings about the building’s history as read from its ruins. An unmanned aerial vehicle was used to digitally record the parlous state of the architectural structure and karsten tubes were used to quantify the surface porosity of the limestone. The results are expressed from four perspectives. The anatomy of Casa Ippolito, as revealed in its ruins, provides a cross-section of its building history and shows two distinct phases in its construction. The tissue of Casa Ippolito – the building elements and materials – speaks of the knowledge of raw materials and their properties among the builders who worked on both phases. The architectural history of Casa Ippolito reveals how it supported its inhabitants’ wellbeing in terms of shelter, water and food. Finally, the ruins in their present state bring to the fore the site’s potential for cultural tourism. This case study aims to show that such ruins are not just geocultural remains of historical built fabric. They are open wounds in the built structure; they underpin the anatomy of the building and support insights into its former dynamics. Ruins offer an essay in material culture and building physics. Architectural ruins of masonry structures are anthropogenic discourse rendered in stone which facilitate not only the reconstruction of spaces but also places for human users; they are a statement on the wellbeing of humanity throughout history.

scholarly journals Strength of industrial sandstones modelled with the Discrete Element Method

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Piotr Klejment ◽  
Robert Dziedziczak ◽  
Paweł Łukaszewski
Keyword(s):  
Discrete Element Method ◽  
Building Materials ◽  
Road Construction ◽  
Discrete Element ◽  
External Factors ◽  
Technical Parameters ◽  
Non Invasive ◽  
External Objects ◽  
Cladding Material ◽  
Element Method

Abstract Sandstone is one of the most popular building materials since the earliest times. It has various textures and colours as well as good technical parameters. Sandstones, having such wide applications, are subjected to various external factors during the period of use. So, it is of utmost importance to have a good knowledge of their strength parameters. We employed a numerical method called Discrete Element Method to examine in a non-invasive manner the mechanical strength of industrial sandstones, that are commonly used as broken stones in road construction, cladding material, paving stones, pavement tiles and so on. Various mechanical external factors were considered, such as breaking, compressional and abrasion forces or impact by external objects and vibrations. Fragmentation of the considered sandstones under compressional regime was a source of knowledge about energy storage inside the material and energy release, as well as appearance of fractures inside the matter and final sandstone fragmentation into crumbs.

Time Domain Reflectometry flat sensor for non-invasive monitoring of moisture changes in building materials

Measurement ◽  
2020 ◽  
Vol 165 ◽  
pp. 108091 ◽  
Author(s):  
Zbigniew Suchorab ◽  
Dariusz Majerek ◽  
Václav Kočí ◽  
Robert Černý
Keyword(s):  
Time Domain ◽  
Building Materials ◽  
Time Domain Reflectometry ◽  
Invasive Monitoring ◽  
Non Invasive

scholarly journals Architectural Ruins: A geocultural essay on the anatomy of buildings as illustrated by Casa Ippolito, Malta

2020 ◽  
Author(s):  
Lino Bianco
Keyword(s):  
Material Culture ◽  
Building Materials ◽  
Raw Materials ◽  
Primary Source ◽  
Secondary Sources ◽  
Non Invasive ◽  
History Of ◽  
Materials Used ◽  
Building Physics

Abstract Ruins are a statement on the building materials used and the construction method employed. Casa Ippolito, now in ruins, is typical of seventeenth-century Maltese aristocratic country residences. It represents an illustration of secondary or anthropogenic geodiversity. This paper scrutinises these ruins as a primary source in reconstructing the building’s architecture. The methodology involved on-site geographical surveying, including visual inspection and non-invasive tests, a geological survey of the local lithostratigraphy, and examination of notarial deeds and secondary sources to support findings about the building’s history as read from its ruins. The results are expressed from four perspectives. The anatomy of Casa Ippolito, as revealed in its ruins, provides a cross-section of its construction history and shows two distinct phases in its construction. The tissue of Casa Ippolito – the building elements and materials – speaks of the knowledge of raw materials and their properties among the builders who worked on both phases of its construction. The architectural history of Casa Ippolito reveals how it met its inhabitants’ needs for shelter, water and food. Finally, the ruins in their present state bring to the fore the site’s potential for cultural tourism. This case study aims to show that such ruins are not just geocultural remains of historical built fabric. They are open wounds in the built structure; they underpin the anatomy of the building and support insights into its former dynamics. Ruins offer an essay in material culture and building physics. Architectural ruins of masonry structures are anthropogenic essays rendered in stone which facilitate not only the reconstruction of spaces but also places for human users; they are a statement on the wellbeing of humanity throughout history.

Single-Sided Nuclear Magnetic Resonance as a Non-Invasive Tool to Evaluate Sprayed Polymer Concrete

2015 ◽  
Vol 1122 ◽  
pp. 185-190 ◽  
Author(s):  
Robert Schulte Holthausen ◽  
Oliver Weichold
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Quality Assurance ◽  
Magnetic Resonance ◽  
Layer Thickness ◽  
Building Materials ◽  
Depth Resolution ◽  
Polymer Concrete ◽  
Non Invasive ◽  
Materials Research ◽  
Nuclear Magnetic

Single-sided nuclear magnetic resonance (NMR) is a powerful tool to evaluate building-material properties such as layer thickness, moisture content, and ageing. Due to its simple setup, it is potentially applicable on site. It is non-invasive with a high depth resolution and makes a number of parameters for planning and executing the rehabilitation of buildings as well as for quality assurance easy accessible. In this paper, we focus on the quality assurance of a sprayed polymer-concrete (SPC), which was recently developed by Massenberg GmbH and the Institute of Building Materials Research (ibac) for the repair of sewage systems. Single-sided NMR was used to access curing time of the epoxy binder, binder content, layer thickness, and diffusion of acids through the SPC. However, single-sided NMR measurements only give relative values, so calibrations are given where required. While single-sided NMR shows great potential and can be used in various further applications, limitations of resolution, depth and measurement time need to be considered.

Comparison of invasive and non-invasive TDR sensors features for moisture evaluation of the building materials

2018 ◽  
Author(s):  
Zbigniew Suchorab ◽  
Monika Garbacz ◽  
Sylwia Duda ◽  
Danuta Barnat-Hunek ◽  
Dariusz Majerek
Keyword(s):  
Building Materials ◽  
Non Invasive

scholarly journals Free of Volatile Organic Compounds Protection against Moisture in Building Materials/Zabezpieczenia Przegród Budowlanych Przed Wilgocią Wolne Od Lotnych Związków Organicznych

2014 ◽  
Vol 21 (3) ◽  
pp. 401-411 ◽  
Author(s):  
Zbigniew Suchorab ◽  
Danuta Barnat-Hunek ◽  
Piotr Smarzewski ◽  
Zbyšek Pavlík ◽  
Robert Černý
Keyword(s):  
Water Uptake ◽  
Building Materials ◽  
Surface Condition ◽  
Time Domain Reflectometry ◽  
Physical Parameters ◽  
Non Invasive ◽  
Uptake Process ◽  
Moisture Protection ◽  
The Time Domain ◽  
Moisture Estimation

Abstract The article presents information about moisture protection of building materials. The discussed parameters determining the efficiency of the water protection are material porosity, water absorptivity and surface condition of building materials. Moreover the ecological aspect of hydrophobic VOC-free preparations available on the market has been underlined. The first part of the article is a description of moisture problem in the building envelopes and the possibilities of its prevention. The special attention is put on the electric methods of moisture estimation with a special emphasis on the Time Domain Reflectometry (TDR) method. The second part of the article is devoted an experiment of model red-brick walls exhibited on capillary uptake process. For the experiment three model red-brick walls were built and prepared for water uptake process. The experiment was monitored by the capacitive and surface TDR probes thanks to which the necessity of sampling and material destruction could be avoided. Conducted experiments show the progress of water uptake phenomenon in the model walls which differ in type of protection against moisture and prove the potential of the non-invasive measurements using the surface TDR probes. Basic physical parameters of the applied bricks were determined together with the reflectometric measurements. Furthermore, Scanning Electron Microscopy (SEM) was used to analyze the hydrophobic layer continuity.

scholarly journals Architectural Ruins: A geoheritage of the anatomy of buildings as illustrated by Casa Ippolito, Malta

2020 ◽  
Author(s):  
Lino Bianco
Keyword(s):  
Material Culture ◽  
Building Materials ◽  
Raw Materials ◽  
Primary Source ◽  
Well Being ◽  
Secondary Sources ◽  
Non Invasive ◽  
Materials Used ◽  
Building Physics

Abstract Ruins are a statement on the building materials used and the construction method employed. Casa Ippolito, now in ruins, is typical of seventeenth-century Maltese aristocratic country residences. This paper scrutinises these ruins as a primary source in reconstructing the building’s architecture. The methodology involved on-site geographical surveying, including visual inspection and non-invasive tests, a geological survey of the local lithostratigraphy, and examination of notarial deeds and secondary sources to support findings about building’s history as read from its ruins. The results are expressed from three perspectives. The anatomy of Casa Ippolito is revealed in its ruins, which provide a cross-section of its construction history and show two distinct phases in its construction. The tissue of Casa Ippolita – the building elements and materials – addresses the knowledge of raw materials and their properties among the builders who worked on both phases. Finally, the geoheritage of Casa Ippolito – how it met its inhabitants’ needs for shelter, water and food – is examined. The case study aims to show that such ruins are not just geocultural remains of historical built fabric. They are open wounds in the built structure; they underpin the anatomy of the building and support insights into its former dynamics. Ruins are an essay in the geoheritage of material culture and building physics. Architectural ruins of masonry structures are geoheritage rendered in stone which facilitate not only the reconstruction of spaces but also places for its users; they are a statement on the well-being of humanity throughout history.

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