Work

The Plasticization of Alkali-Activated Cement System Na2O-CaO-Al2O3-SiO2-H2O: Problems and Decisions

Year: 2025

Type: article

Abstract: The paper is devoted to the plasticization mechanisms of alkali-activated cement system Na2O-CaO-Al2O3-SiO2-H2O. The fundamentals and basic factors determining the effectiveness of plasticizing surfactants for alkali-activated cement materials are discussed. The factors under consideration in the study were alkali-activated cement basicity (the content of granulated blast furnace slag), the anion of the alkaline component or activator, and the degree of dispersing of the cement particles in the system. The action effect of plasticizers was determined by finding the interrelation between the stability of its molecular structure, degree of adsorption, and molecular weight depending on mentioned basic factors. A systematic approach to the systematization of surfactants and their choice to be taken into consideration to control technology-related and physico-mechanical properties of alkali-activated cement-based heavyweight concretes, building mortars, and lightened grouts has been proposed.

Source: Applied Sciences

DOI: 10.3390/app15126928

Authors: Pavlo Kryvenko, Igor Rudenko, Oleksandr Konstantynovskyi

Institution: Kyiv National University of Construction and Architecture

Language: English

Topic: Concrete and Cement Materials Research

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

Funder: Ministry of Education and Science of Ukraine