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Development of a New Nondestructive Method for the In-Situ Determination of Mortar Strength

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F23%3A00362717" target="_blank" >RIV/68407700:21610/23:00362717 - isvavai.cz</a>

  • Výsledek na webu

    <a href="https://doi.org/10.3390/buildings13020273" target="_blank" >https://doi.org/10.3390/buildings13020273</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3390/buildings13020273" target="_blank" >10.3390/buildings13020273</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Development of a New Nondestructive Method for the In-Situ Determination of Mortar Strength

  • Popis výsledku v původním jazyce

    The determination of the load bearing capacity of masonry in existing structures is not an easy task, even for experienced surveyors. For its assessment, it is necessary to know the compressive strength of the masonry units and mortar. Relatively good destructive and non-destructive methods were developed for the determination of the compressive strength of masonry units. However, mortar compressive strength determination is currently closer to a rough estimation rather than a deterministic approach. All of the currently used methods are either complicated, have a limited application, or are based on the surveyor’s experience only. Influence of the human factor on the results of testing is significant. The paper introduces the development of a new non-destructive method, which eliminates the influence of the human factor. The method is supposed to work as quickly and as easily as the Schmidt hammer used for concrete structure surveys. The new instrument was created where the compressive strength of mortar is assessed by hammering a steel bar into a joint with constant energy, while the depth of penetration is measured. The impact energy is provided by a steel spring with a prescribed stiffness, and the loading is provided by an automatic system similar to those used in air-soft guns.

  • Název v anglickém jazyce

    Development of a New Nondestructive Method for the In-Situ Determination of Mortar Strength

  • Popis výsledku anglicky

    The determination of the load bearing capacity of masonry in existing structures is not an easy task, even for experienced surveyors. For its assessment, it is necessary to know the compressive strength of the masonry units and mortar. Relatively good destructive and non-destructive methods were developed for the determination of the compressive strength of masonry units. However, mortar compressive strength determination is currently closer to a rough estimation rather than a deterministic approach. All of the currently used methods are either complicated, have a limited application, or are based on the surveyor’s experience only. Influence of the human factor on the results of testing is significant. The paper introduces the development of a new non-destructive method, which eliminates the influence of the human factor. The method is supposed to work as quickly and as easily as the Schmidt hammer used for concrete structure surveys. The new instrument was created where the compressive strength of mortar is assessed by hammering a steel bar into a joint with constant energy, while the depth of penetration is measured. The impact energy is provided by a steel spring with a prescribed stiffness, and the loading is provided by an automatic system similar to those used in air-soft guns.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    20101 - Civil engineering

Návaznosti výsledku

  • Projekt

  • Návaznosti

    S - Specificky vyzkum na vysokych skolach

Ostatní

  • Rok uplatnění

    2023

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Buildings

  • ISSN

    2075-5309

  • e-ISSN

    2075-5309

  • Svazek periodika

    13(2)

  • Číslo periodika v rámci svazku

    273

  • Stát vydavatele periodika

    CH - Švýcarská konfederace

  • Počet stran výsledku

    11

  • Strana od-do

  • Kód UT WoS článku

    000938356400001

  • EID výsledku v databázi Scopus

    2-s2.0-85149224549