Statistical Evaluation of Mechanical Properties of Slag Based Alkali-Activated Material

Sustainability

Martin Sisol¹  Tomáš Holub¹  Peter Varga¹  Dušan Kudelas¹  Michal Marcin¹ 

[1] Institute of Earth Resources, Faculty of Mining, Ecology, Process Control and Geotechnologies Technical University of Košice, Letná 9, 040 01 Košice, Slovakia;

关键词: geopolymer;    slag;    compressive strength;    flexural strength;   

DOI  :  10.3390/su11215935

来源: DOAJ

【 摘 要 】

Slag is one of the by-products of the energy industry, which is suitable for secondary industrial processing. Although slag has been successfully used in industrial production for several decades, its use does not achieve the level of its potential. Today, to achieve a sustainable construction industry, alternative types of cement have been extensively investigated. Geopolymer is a kind of material which is obtained from the alkaline activator and it can be produced from the industrial wastes or by-products. In this study, SiO₂/Na₂O ratio and the amount of Na₂O in activation solution parameters of alkali-activated materials were tested how they affect the strengths of hardened geopolymers from ground granulated blast furnace slag (GGBFS). Compressive and flexural strength tests were conducted, and the results were analyzed by analysis of variance (ANOVA). Strengths were tested after 7, 28, and 90 days.

【 授权许可】

Unknown