Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Advances in Science and Technology. Research Journal

1 2023

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

A Potential Environmental Sustainability of Wood Ash in Normal and Geopolymer Concrete – A Review

Nura Isa Muhammad, Awang Hanizam, Muthusamy Khairunisa

Advances in Science and Technology. Research Journal

2023

Vol. 17, no 4

1--20

The production of cement for concrete has led to the emission of carbon dioxide (CO₂) into the atmosphere, which has contributed to global warming. Moreover, the excessive amount of industrial waste from biomass energy production landfilled in our environments is continuously causing sustainability challenges. However, several studies were carried out to ascertain the possibilities of using these waste materials in concrete production to address the cement and waste disposal sustainable issues simultaneously. The present study reviewed multiple studies that were carried out on wood ash (WA) application in both normal and geopolymer concrete with an emphasis on fresh, hardened, and durability properties. WA effects as a pozzolanic material are summarized for its application in mortar/concrete production. WA can be used to replace cement in mortar/concrete at up to 20% replacement level, similarly, in geopolymer production, it was revealed that WA can be effectively utilized to replace ground granulated blast furnace slag (GGBS) or pulverized fly ash (PFA) at up to 50% replacement level. The sustainability impacts of WA utilization in concrete production were presented and discussed. Results of these findings revealed its suitability as supplementary cementitious material, but still there exists a gap in its utilization in geopolymer concrete.