Variations in the composition and relations between alkali-silica gels and calcium silicate hydrates in highway concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00108827" target="_blank" >RIV/00216224:14310/18:00108827 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/44994575:_____/18:N0000105

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1044580317317710" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1044580317317710</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchar.2018.01.012" target="_blank" >10.1016/j.matchar.2018.01.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Variations in the composition and relations between alkali-silica gels and calcium silicate hydrates in highway concrete

Popis výsledku v původním jazyce

Alkali-aggregate reactions (AAR) are a form of severe concrete deterioration that can be found anywhere in the world. The rock type of aggregate is the crucial factor for AAR occurrence as well as for the chemical and morphological nature of their deleterious products alkali-silica gels (ASG). The paper focuses on highway cement concrete pavement with aggregate composed of metamorphosed volcano-sedimentary complex rocks, such as proterozoic chert, black shale, spilite, and green schist, and alluvial sandy gravels. These petrographic types of aggregate were found to be potentially hazardous. The microchemical composition of ASG was analysed and compared to calcium silicate hydrates present in the vicinity of one another. The qualitative elemental composition of both is the same. Gradual variations of ASG within a single position and among different positions in cement concrete pavement slabs were monitored and compared.

Název v anglickém jazyce

Variations in the composition and relations between alkali-silica gels and calcium silicate hydrates in highway concrete

Popis výsledku anglicky

Alkali-aggregate reactions (AAR) are a form of severe concrete deterioration that can be found anywhere in the world. The rock type of aggregate is the crucial factor for AAR occurrence as well as for the chemical and morphological nature of their deleterious products alkali-silica gels (ASG). The paper focuses on highway cement concrete pavement with aggregate composed of metamorphosed volcano-sedimentary complex rocks, such as proterozoic chert, black shale, spilite, and green schist, and alluvial sandy gravels. These petrographic types of aggregate were found to be potentially hazardous. The microchemical composition of ASG was analysed and compared to calcium silicate hydrates present in the vicinity of one another. The qualitative elemental composition of both is the same. Gradual variations of ASG within a single position and among different positions in cement concrete pavement slabs were monitored and compared.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Materials Characterization

ISSN

1044-5803

e-ISSN

1873-4189

Svazek periodika

137

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

91-108

Kód UT WoS článku

000426233800011

EID výsledku v databázi Scopus

2-s2.0-85042903222