Detection of alkali-silica reaction by means of ultrasonic sounding - a pilot study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F15%3A00444509" target="_blank" >RIV/67985831:_____/15:00444509 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Detection of alkali-silica reaction by means of ultrasonic sounding - a pilot study

Popis výsledku v původním jazyce

During the past 20 years, alkali silicate reaction (ASR) as a cause of concrete deterioration has been studied by a wide range of experimental methods such as microstructural and macrostructural analysis, bulk chemical analysis, X-ray and neutron diffraction analysis, etc. All of these data are compared with expansion values of mortar bars (following ASTM standard C 1260). Ultrasonic testing methods (including ultrasonic pulse velocity UPV) are widely used to determine material mechanical properties andthe changes induced by a variety of mechanical or chemical processes. However, only a few laboratory studies of ASR focused on ultrasonic testing of mortar bars. Due to this fact, a heating chamber was designed and constructed to enable ultrasonic sounding of mortar bar specimens while stored in accelerating solution. Regular ultrasonic sounding of mortar bars reveals significant dependence of ultrasonic data such as longitudinal P-wave velocity, signal energy, signal amplitude and sign

Název v anglickém jazyce

Detection of alkali-silica reaction by means of ultrasonic sounding - a pilot study

Popis výsledku anglicky

During the past 20 years, alkali silicate reaction (ASR) as a cause of concrete deterioration has been studied by a wide range of experimental methods such as microstructural and macrostructural analysis, bulk chemical analysis, X-ray and neutron diffraction analysis, etc. All of these data are compared with expansion values of mortar bars (following ASTM standard C 1260). Ultrasonic testing methods (including ultrasonic pulse velocity UPV) are widely used to determine material mechanical properties andthe changes induced by a variety of mechanical or chemical processes. However, only a few laboratory studies of ASR focused on ultrasonic testing of mortar bars. Due to this fact, a heating chamber was designed and constructed to enable ultrasonic sounding of mortar bar specimens while stored in accelerating solution. Regular ultrasonic sounding of mortar bars reveals significant dependence of ultrasonic data such as longitudinal P-wave velocity, signal energy, signal amplitude and sign

Druh

D - Stať ve sborníku

CEP obor

DC - Seismologie, vulkanologie a struktura Země

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP104%2F12%2F0915" target="_blank" >GAP104/12/0915: Kvantitativní analýza deformačních struktur křemene ovlivňujících vznik ASR v betonu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Innovations in Applied and Theoretical Rock Mechanics

ISBN

978-1-926872-25-4

ISSN

—

e-ISSN

—

Počet stran výsledku

12

Strana od-do

—

Název nakladatele

Canadian Institute of Mining, Metallurgy and Petroleum

Místo vydání

Montréal

Místo konání akce

Montréal

Datum konání akce

10. 5. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—