MINERAL ADMIXTURES REACTIVITY DETERMINATION

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43925783" target="_blank" >RIV/60461373:22310/22:43925783 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/22:00364134

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

MINERAL ADMIXTURES REACTIVITY DETERMINATION

Original language description

Sustainability and new greening measures bring new challenges to the construction industry within the EuropeanUnion. Reducing CO2 emissions is forcing the market to find new ways and use new materials as admixturesin cement or concrete. Lower quality clays could undoubtedly be such materials. Fly ashes from co-combustionof biomass are also beginning to appear on the market. They have different composition and propertiescompared to conventional fly ashes. In addition, it cannot be forgotten that there is the potential use of powerplant bottom ashes. In this work, the pozzolanic activity and reactivity of various types of mineral admixtures,both traditional and new ones, were compared. The reactivity of the admixtures was determined using theFrattini test and the electrical conductivity test. The 8-day Frattini test proved the pozzolanic activity of all rawmaterials except for one sample of fly ash from biomass. The shortened 1-day Frattini test showed a differentreactivity of the materials after one day of hydration in comparison to 8-day Frattini test. Nevertheless, thequantitative agreement between the results of the 1-day Frattini test and the electrical conductivity test was notclearly demonstrated. It was further confirmed that the pozzolanic activity of the supplied substances isdetermined by their grain size as well.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/FW01010195" target="_blank" >FW01010195: Advanced and inovative processing technologies for strategic utilization and storing of coal combustion products (CCPs)</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Article name in the collection

Proceedings of the 9th International Conference on Chemical Technology

ISBN

978-80-88307-11-2

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

84-89

Publisher name

Czech Society of Industrial Chemistry

Place of publication

Prague

Event location

Mikulov

Event date

Apr 25, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—