A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation on Impacts of Municipal Solid Waste Incineration Bottom Ash on Cement Hydration
The goal of this study is to explore beneficial use of municipal solid waste incineration (MSWI) bottom ash in cement-based products for saving waste-disposal cost, conserving natural resources, and saving energy. However, uncertain engineering characterization of this waste product has been always a major concern; thus, particularly in the United States, there has been no recycling of MSWI bottom ash. In this study, efforts were made to characterize MSWI bottom ash and to evaluate the effects of the ash as a partial replacement of cement and fine aggregate in cement paste and concrete, respectively. This paper presents and discusses: 1) physical and chemical properties of MSWI bottom ash; 2) its effect on cement hydration; and 3) physical and mechanical properties of cement paste and concrete specimens containing bottom ash. The main focus of the investigation particularly was on the impact of MSWI bottom ash on cement hydration. It was found that MSWI bottom ash causes both a hydration effect due to existing calcium oxide, calcium sulfate, and silica dioxide, as well as volume expansion due to hydrogen gas evolution.
Investigation on Impacts of Municipal Solid Waste Incineration Bottom Ash on Cement Hydration
The goal of this study is to explore beneficial use of municipal solid waste incineration (MSWI) bottom ash in cement-based products for saving waste-disposal cost, conserving natural resources, and saving energy. However, uncertain engineering characterization of this waste product has been always a major concern; thus, particularly in the United States, there has been no recycling of MSWI bottom ash. In this study, efforts were made to characterize MSWI bottom ash and to evaluate the effects of the ash as a partial replacement of cement and fine aggregate in cement paste and concrete, respectively. This paper presents and discusses: 1) physical and chemical properties of MSWI bottom ash; 2) its effect on cement hydration; and 3) physical and mechanical properties of cement paste and concrete specimens containing bottom ash. The main focus of the investigation particularly was on the impact of MSWI bottom ash on cement hydration. It was found that MSWI bottom ash causes both a hydration effect due to existing calcium oxide, calcium sulfate, and silica dioxide, as well as volume expansion due to hydrogen gas evolution.
Investigation on Impacts of Municipal Solid Waste Incineration Bottom Ash on Cement Hydration
Jinwoo An (author) / Jinyoung Kim / Boo Hyun Nam
ACI materials journal ; 114
2017
Article (Journal)
English
Investigation on Impacts of Municipal Solid Waste Incineration Bottom Ash on Cement Hydration
| British Library Online Contents | 2017
| British Library Online Contents | 2017
Cement hydration in the presence of municipal solid waste incineration fly ash
| British Library Conference Proceedings | 1998