Geopolymers: The influence of alkaline activator cations on efflorescence

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F21%3A00548605" target="_blank" >RIV/67985891:_____/21:00548605 - isvavai.cz</a>

Result on the web

<a href="http://hdl.handle.net/11104/0324649" target="_blank" >http://hdl.handle.net/11104/0324649</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Geopolymers: The influence of alkaline activator cations on efflorescence

Original language description

This paper describes the effect of the type of cations in the alkaline activator on geopolymer properties and especially on the formation of efflorescence. The susceptibility to the formation of efflorescence is discussed according to the standard ČSN 72 1565-13. Cations in alkaline activators influence the mineralogical type of efflorescence: Li+ and Na+ cations form carbonates (Li2CO3 and Na2CO3, respectively), whereas K+ cations form sulphate (K2SO4). The mechanical properties, workability and pore structure of the geopolymer composites have been determined. Alkaline activators with sodium and potassium ions reach higher mechanical strength than those containing lithium cations. For lithium alkaline activators, there was a noticeable difference in the properties between the SiO2/Li2O ratios 1.8 and 2.6. Based on the properties of the mentioned geopolymer composites with various alkaline cations, it is possible to use lithium alkaline activators in geopolymer technology.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Article name in the collection

Proceedings of the 8th International Conference on Chemical Technology

ISBN

978-80-88307-08-2

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

326-331

Publisher name

Czech Society of Industrial Chemistry

Place of publication

Praha

Event location

Mikulov

Event date

May 3, 2021

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

—