Effects of seeding nucleation agent on geopolymerization process of fly-ash geopolymer

• Published in: Frontiers of Structural and Civil Engineering 2018-03, Vol.12 (1), p.16-25
• Main Authors: PRASITTISOPIN, Lapyote, SEREEWATTHANAWUT, Issara
• Format: Article
• Language: English
• Subjects: Aluminosilicates; Aluminum silicates; Calcium hydroxide; Carbon dioxide; Carbon dioxide emissions; Cement; Cities; Civil Engineering; Concrete; Construction industry; Countries; Engineering; Fly ash; geopolymer; Nucleation; nucleation agent; Performance enhancement; Polymerization; Portland cement; portland cement replacement; Portland cements; Regions; Research Article; Viability; 代理人; 苍蝇; 成核; 播种; 水泥生产; 构造技术; 反应率; 二氧化碳
• ISSN: 2095-2430; 2095-2449
• DOI: 10.1007/s11709-016-0373-7

Geopolymer, an inorganic aluminosilicate material activated by alkaline medium solution, can perform as an inorganic adhesive. The geopolymer technology has a viability to substitute traditional concrete made of portland cement （PC） because replacing PC with fly ash leads to reduced carbon dioxide emissions from cement productions and reduced materials cost. Although fly ash geopolymer stimulates sustainability, it is slow geopolymerization reaction poses a challenge for construction technology in term of practicality. The development of increasing geopolymerization reaction rate of the geopolymer is needed. The purpose of this study is to evaluate seeding nucleation agents （NA） of fly ash geopolymer that can accelerate polymerization reactions such that the geopolymer can be widely used in the construction industry. Results from the present study indicate that the use of NA （i.e., Ca（OH）2） can be potentially used to increase geopolymerization reaction rate and improve performance characteristics of the fly ash geopolymer product.