The hydration behavior of polymer-incorporated calcium aluminate cement mortars at different curing temperatures

Maria Idrees*, Ozgur Ekincioglu, Muhammad Sarmad Sonyal

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The potential degradation of calcium aluminate cement (CAC) concrete due to the conversion of thermodynamically metastable compounds into stable phases is a well-known phenomenon. This research focuses on the effects of polymers on the hydration kinetics and strength development of calcium aluminate cement (CAC) mortars at two curing temperatures, i.e., 200 °C and 38 °C. The constant CAC content was used to prepare mortars. However, the sand was replaced by acrylic polymer (AP) (5%), vinyl acetate monomer/vinyl versetate polymer (VA/VV) (2%), and two different Poly (vinyl alcohol-co-vinyl acetate) (PVAc) (2%). Isothermal calorimetric investigations for 3 days, capillary absorption tests, flexural strength tests and compressive strength tests at 3, 7, 28, and 90 days were conducted. The hydration reactions of CAC mortars accelerated by replacing sand with polymer admixtures. The flexural strength of CAC mortar with the AP exhibited on-par compressive strength values at 20 °C. All the polymer-incorporated samples except VA/VV displayed an increase in their late-age mechanical properties than 28 days results, showing promising results for reduction in strength decline at a later stage. The PVAc-73 (i.e., 73% hydrolysis degree)-incorporated mortar was unaffected by increased curing temperature. The mortars exhibited early hydration behavior at increased temperatures.

Original languageEnglish
Pages (from-to)13201-13215
Number of pages15
JournalJournal of Thermal Analysis and Calorimetry
Volume147
Issue number23
DOIs
Publication statusPublished - Dec 2022

Bibliographical note

Publisher Copyright:
© 2022, Akadémiai Kiadó, Budapest, Hungary.

Funding

The authors are highly obliged to Cimsa Cement Company, which supplied calcium aluminate cement and Nippon Gohsei and Organik Kimya for supplying polymers for this study.

FundersFunder number
Cimsa Cement Company

    Keywords

    • Calcium aluminate cement
    • Capillary water absorption
    • Compressive strength
    • Flexural strength
    • Isothermal calorimetry
    • Polymers
    • The heat of hydration

    Fingerprint

    Dive into the research topics of 'The hydration behavior of polymer-incorporated calcium aluminate cement mortars at different curing temperatures'. Together they form a unique fingerprint.

    Cite this