Microstructural changes and residual properties of fiber reinforced cement composites exposed to elevated temperatures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00193062" target="_blank" >RIV/68407700:21110/12:00193062 - isvavai.cz</a>

Alternative codes found

RIV/61388980:_____/12:00377485

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Microstructural changes and residual properties of fiber reinforced cement composites exposed to elevated temperatures

Original language description

The high temperature load causes irreversible changes in the microstructure of cementitious composites resulting in decrease of their mechanical performance and durability. In this paper, the effect of elevated temperatures up to 1000 °C on the mineralogical composition and microstructure of four different types of fiber reinforced cement composites is evaluated by means of X-ray diffraction analysis, mercury intrusion porosimetry and nitrogen adsorption porosimetry. The residual properties are characterized by bending strength and apparent moisture diffusivity. Experimental results show that the degradation processes of matrix (gel sintering and aggregates expansion) influence the pore system more significantly than the degradation of thermally unstable fibers. The residual bending strength is positively affected by the thermally stable fibers at least up to 600 °C but in a relative sense the strength reduction in composites with this type of fibers is more significant. The apparent m

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JI - Composite materials

OECD FORD branch

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Project

<a href="/en/project/GAP104%2F12%2F0791" target="_blank" >GAP104/12/0791: Fiber-Reinforced Cement Composites for High-Temperature Applications</a><br>

Continuities

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

Publication year

2012

Confidentiality

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

Name of the periodical

Cement Wapno Beton

ISSN

1425-8129

e-ISSN

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Volume of the periodical

17/79

Issue of the periodical within the volume

2

Country of publishing house

PL - POLAND

Number of pages

13

Pages from-to

77-89

UT code for WoS article

000302969900002

EID of the result in the Scopus database

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