dc.contributor.advisor | Chavin Naotunna | |
dc.contributor.author | SISAY TILAHUN,ABDISA | |
dc.date.accessioned | 2022-07-16T15:51:38Z | |
dc.date.available | 2022-07-16T15:51:38Z | |
dc.date.issued | 2022 | |
dc.identifier | no.uis:inspera:102982611:49603616 | |
dc.identifier.uri | https://hdl.handle.net/11250/3006050 | |
dc.description | Full text not available | |
dc.description.abstract | In the manufacturing of Portland cement concrete, fly ash is frequently utilized as a
supplemental cementitious material (SCM). High-volume fly ash (HVFA) concrete is concrete
that contains a significant proportion of fly ash. Occasionally, it is also referred to as "green
concrete." Fresh concrete's properties include setting, workability, bleeding, segregation,
hydration, and air entrainment. The majority of these qualities depend on the Water-to-Cement
Ratio, Optimal Temperature, Cement Content, Cement Type, Cement Fineness, Relative
Humidity, Admixture Type, and Aggregate Quantity. The addition of standard amounts of fly
ash to Portland cement concrete has economic, environmental, and performance advantages.
The economic and environmental advantages of adding fly ash to concrete are lower cement
manufacturing costs, decreased greenhouse gas emissions, and enhanced sustainability. The
purpose of this study is to examine the effect of high-volume fly ash on the qualities of fresh
concrete, with the physical and chemical properties of high-volume fly ash evaluated in various
articles serving as the research materials. The study came to the conclusion that up to 50 percent
fly ash can be used in most elements, as long as the early-age strength requirements for concrete
are met. | |
dc.description.abstract | In the manufacturing of Portland cement concrete, fly ash is frequently utilized as a
supplemental cementitious material (SCM). High-volume fly ash (HVFA) concrete is concrete
that contains a significant proportion of fly ash. Occasionally, it is also referred to as "green
concrete." Fresh concrete's properties include setting, workability, bleeding, segregation,
hydration, and air entrainment. The majority of these qualities depend on the Water-to-Cement
Ratio, Optimal Temperature, Cement Content, Cement Type, Cement Fineness, Relative
Humidity, Admixture Type, and Aggregate Quantity. The addition of standard amounts of fly
ash to Portland cement concrete has economic, environmental, and performance advantages.
The economic and environmental advantages of adding fly ash to concrete are lower cement
manufacturing costs, decreased greenhouse gas emissions, and enhanced sustainability. The
purpose of this study is to examine the effect of high-volume fly ash on the qualities of fresh
concrete, with the physical and chemical properties of high-volume fly ash evaluated in various
articles serving as the research materials. The study came to the conclusion that up to 50 percent
fly ash can be used in most elements, as long as the early-age strength requirements for concrete
are met. | |
dc.language | eng | |
dc.publisher | uis | |
dc.title | Green Concrete | |
dc.type | Bachelor thesis | |