Length changes of fine-grained cement-based composites specimens in early stage of ageing: correction reflecting temperature variations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU124642" target="_blank" >RIV/00216305:26110/17:PU124642 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Length changes of fine-grained cement-based composites specimens in early stage of ageing: correction reflecting temperature variations

Popis výsledku v původním jazyce

The paper deals with the numerical analysis of the experimental data obtained from the measurement of relative length changes during the ageing of cementitious composites. Two fine-grained composites based on the Portland cement, with different water to cement (w/c) ratio and amount of plasticizer, were prepared for the experiment. The quartz-aggregate with maximum grain size of 2 mm was used for both mixtures. The measurement procedure was designed to record simultaneously the relative length changes (measured along the longitudinal axis of test specimens), weight losses, temperature inside the test specimens and ambient temperature and relative humidity. Test specimens were manufactured in special moulds with dimension of 100 x 60 mm in cross section and 1000 mm in length which allows to measure the length changes very early after their filling. The moulds were placed on a special weighing table and a thermal sensor was embedded at the end of the test specimens. The relative length changes, weight l

Název v anglickém jazyce

Length changes of fine-grained cement-based composites specimens in early stage of ageing: correction reflecting temperature variations

Popis výsledku anglicky

The paper deals with the numerical analysis of the experimental data obtained from the measurement of relative length changes during the ageing of cementitious composites. Two fine-grained composites based on the Portland cement, with different water to cement (w/c) ratio and amount of plasticizer, were prepared for the experiment. The quartz-aggregate with maximum grain size of 2 mm was used for both mixtures. The measurement procedure was designed to record simultaneously the relative length changes (measured along the longitudinal axis of test specimens), weight losses, temperature inside the test specimens and ambient temperature and relative humidity. Test specimens were manufactured in special moulds with dimension of 100 x 60 mm in cross section and 1000 mm in length which allows to measure the length changes very early after their filling. The moulds were placed on a special weighing table and a thermal sensor was embedded at the end of the test specimens. The relative length changes, weight l

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA17-14302S" target="_blank" >GA17-14302S: Experimentální analýza objemových změn cementových kompozitů v raném stádiu tuhnutí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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