Calibration of sonic pulse velocity tests for detection of variable conditions in masonry walls
| Autor: | Maria Rosa Valluzzi, Lorenzo Cantini, Camilla Colla, Giuliana Cardani, Elvis Cescatti, Luigi Zanzi, F. Casarin |
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| Rok vydání: | 2018 |
| Předmět: |
0211 other engineering and technologies
020101 civil engineering 02 engineering and technology Direct tests engineering.material 0201 civil engineering NDT Nondestructive testing Flaw 021105 building & construction Calibration General Materials Science Brick masonry Grout injection MASW Sonic pulse velocity Stone masonry Tomography Civil and Structural Engineering Building and Construction Materials Science (all) Reliability (statistics) Consolidation (soil) business.industry Grout Structural engineering Masonry Surface wave engineering business Geology |
| Zdroj: | Construction and Building Materials. 192:272-286 |
| ISSN: | 0950-0618 |
| Popis: | Sonic pulse velocity is a non-destructive method used for diagnosing existing masonry and evaluating the effectiveness of interventions. A new comparative study is presented here, aimed at checking the reliability of the method in detecting inhomogeneities in order to qualify various masonry conditions, according to common practice and up-to-date tools, for both on-site testing and data handling. Four research groups applied direct and tomographic sonic velocity tests on three full-size wall specimens representing existing masonry types. The surface wave method was also applied to one of the specimens, to compare various outputs of elastic wave transmission. The panels incorporated various flaws and inclusions and were consolidated by grout injections. Each research unit applied its own acquisition systems and processing methods before and after panel consolidation. The results confirmed the ability of sonic pulse velocity tests in detecting large inclusions and significant variations in compactness, and provided quantitative reference values for materials and conditions. The research provided directions for further optimization of sonic waves transmission test application in already existing masonry constructions. |
| Databáze: | OpenAIRE |
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