Influence of Curing Regimes on Engineering and Microstructural Properties of Geopolymer-Based Materials from Water Treatment Residue and Fly Ash

Autor: Do Quang Minh, Nguyen Hoc Thang, Bui Khac Thach
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Technology, Vol 12, Iss 4, Pp 700-710 (2021)
ISSN: 2087-2100
2086-9614
Popis: Geopolymerization is a new method for treating water treatment residue (WTR)from water purification plants to reduce the amount of stored land in urban areas. Polymeric bond formation depends on the curing conditions. In this study, the curing conditions suitable for subsequent treatment to save energy consumption and production costs in the future application were investigated.TheWTR had a high aluminosilicate content with low alkaline activity, sofly ash (FA) was added to FAandWTR mixtures inthe ratio of 40 and 60weightpercent(% in wt.), respectively.The moisture content of the mixtures ranged in 12–15%, suitable for semi-dry pressing to form pellets. After this formation, the geopolymer samples were cured under different conditions (room temperature, microwaveoven,in dryerat 110°C,and in autoclave with hydrothermalcondition). The experimental results showed that the hydrothermal samples had better properties, such as pH
Databáze: OpenAIRE