Impact of light mica on the intensity of the alkali-silica
reactions in cement concrete pavements containing cataclased
granite aggregates

J 2024

Impact of light mica on the intensity of the alkali-silica reactions in cement concrete pavements containing cataclased granite aggregates

GREGEROVÁ, Miroslava; Jana ŠTULÍŘOVÁ; Aleš FRÝBORT a Jiří GROŠEK

Základní údaje

Originální název

Impact of light mica on the intensity of the alkali-silica reactions in cement concrete pavements containing cataclased granite aggregates

Autoři

GREGEROVÁ, Miroslava ; Jana ŠTULÍŘOVÁ; Aleš FRÝBORT a Jiří GROŠEK

Vydání

Case Studies in Construction Materials, Elsevier, 2024, 2214-5095

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 6.600

Kód RIV

RIV/00216224:14310/24:00137366

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1016/j.cscm.2024.e03521

UT WoS

001281373100001

EID Scopus

2-s2.0-85199362326

Klíčová slova anglicky

Cement concrete pavement; Alkali-silica reaction; Alkali-silica gel; Crystalline alkali-calcium aqueous silicates; Cataclased granite; Light mica; Feldspar; Scanning electron microscopy / energy; dispersive X-ray spectroscopy

Štítky

14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 2. 4. 2025 10:27, Mgr. Natálie Hílek

Anotace

V originále

The main goal was to determine the reaction potential of alkali-reactive aggregates containing unstable and metastable K-silicates together with quartz (predominant SiO2 polymorph) for alkali-silica reactions (ASR) in cement concrete pavements. Current methods used to determine the expansion potential of aggregates do not solve these problems. The study of mineral paragenesis of cataclased granite by the SEM/EDX method shows that the differences in the microstructural and microchemical composition of ASR products in the cement matrix reflect the mineral variability of the rocks. The final products (crystals alkali-calcium aqueous silicates (NK) CSH), formed from alkali-silica gel (ASG), not only have different K2O contents, but analysis of internal and external ASG led to the finding that the K2O content is highest in cataclased granites with polymineral paragenesis (K-feldspar, light mica, quartz). The monomineral cataclased granite aggregate (crushed quartz only), its outer edge and air-voids have a significantly lower K content. The highest K2O contents and at the same time lower CaO content were identified in ASGs appearing in paragenesis with light mica, and crushed feldspars. Based on the results presented in this work, it can be concluded that the presence of transformed feldspars and light mica significantly affect both the microchemical composition of ASR products and their crystalline product morphology.

Citovat

GREGEROVÁ, Miroslava; Jana ŠTULÍŘOVÁ; Aleš FRÝBORT a Jiří GROŠEK. Impact of light mica on the intensity of the alkali-silica reactions in cement concrete pavements containing cataclased granite aggregates. Case Studies in Construction Materials. Elsevier, 2024, roč. 21, December 2024, s. 1-24. ISSN 2214-5095. Dostupné z: https://doi.org/10.1016/j.cscm.2024.e03521.

@article{2445058,
   author = {Gregerová, Miroslava and Štulířová, Jana and Frýbort, Aleš and Grošek, Jiří},
   article_number = {December 2024},
   doi = {https://doi.org/10.1016/j.cscm.2024.e03521},
   keywords = {Cement concrete pavement; Alkali-silica reaction; Alkali-silica gel; Crystalline alkali-calcium aqueous silicates; Cataclased granite; Light mica; Feldspar; Scanning electron microscopy / energy; dispersive X-ray spectroscopy},
   language = {eng},
   issn = {2214-5095},
   journal = {Case Studies in Construction Materials},
   title = {Impact of light mica on the intensity of the alkali-silica reactions in cement concrete pavements containing cataclased granite aggregates},
   url = {https://www.sciencedirect.com/science/article/pii/S2214509524006727},
   volume = {21},
   year = {2024}
}

TY  - JOUR
ID  - 2445058
AU  - Gregerová, Miroslava - Štulířová, Jana - Frýbort, Aleš - Grošek, Jiří
PY  - 2024
TI  - Impact of light mica on the intensity of the alkali-silica reactions in cement concrete pavements containing cataclased granite aggregates
JF  - Case Studies in Construction Materials
VL  - 21
IS  - December 2024
SP  - 1-24
EP  - 1-24
PB  - Elsevier
SN  - 22145095
KW  - Cement concrete pavement
KW  - Alkali-silica reaction
KW  - Alkali-silica gel
KW  - Crystalline alkali-calcium aqueous silicates
KW  - Cataclased granite
KW  - Light mica
KW  - Feldspar
KW  - Scanning electron microscopy / energy
KW  - dispersive X-ray spectroscopy
UR  - https://www.sciencedirect.com/science/article/pii/S2214509524006727
N2  - The main goal was to determine the reaction potential of alkali-reactive aggregates containing unstable and metastable K-silicates together with quartz (predominant SiO2 polymorph) for alkali-silica reactions (ASR) in cement concrete pavements. Current methods used to determine the expansion potential of aggregates do not solve these problems. The study of mineral paragenesis of cataclased granite by the SEM/EDX method shows that the differences in the microstructural and microchemical composition of ASR products in the cement matrix reflect the mineral variability of the rocks. The final products (crystals alkali-calcium aqueous silicates (NK) CSH), formed from alkali-silica gel (ASG), not only have different K2O contents, but analysis of internal and external ASG led to the finding that the K2O content is highest in cataclased granites with polymineral paragenesis (K-feldspar, light mica, quartz). The monomineral cataclased granite aggregate (crushed quartz only), its outer edge and air-voids have a significantly lower K content. The highest K2O contents and at the same time lower CaO content were identified in ASGs appearing in paragenesis with light mica, and crushed feldspars. Based on the results presented in this work, it can be concluded that the presence of transformed feldspars and light mica significantly affect both the microchemical composition of ASR products and their crystalline product morphology.
ER  -

GREGEROVÁ, Miroslava; Jana ŠTULÍŘOVÁ; Aleš FRÝBORT a Jiří GROŠEK. Impact of light mica on the intensity of the alkali-silica reactions in cement concrete pavements containing cataclased granite aggregates. \textit{Case Studies in Construction Materials}. Elsevier, 2024, roč.~21, December 2024, s.~1-24. ISSN~2214-5095. Dostupné z: https://doi.org/10.1016/j.cscm.2024.e03521.

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