Development of Green Concrete Containing Ternary High Volume SCMs and its In-situ Application
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Bibliographic Details
| Author(s): |
Kwangsoo Youm
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | 18th IABSE Congress: Innovative Infrastructures – Towards Human Urbanism, Seoul, Korea, 19-21 September 2012 | ||||
| Published in: | IABSE Congress Seoul 2012 | ||||
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| Page(s): | 1073-1079 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/222137912805111483 | ||||
| Abstract: |
Recently, the use of cement-less concrete containing high volumes of fly ash, and GGBFS instead of purely Portland cement is increasing recently in Korea to reduce energy consumption and the embodied CO₂ of structures. However, as the contents of supplementary cementitious materials (SCMs) increase within the concrete binder, so the early-age compressive strength within 14 days is usually less than normal concrete. In order to improve this early-age compressive strength, a green concrete was developed containing two types of high volume SCMs, such as maximum 70% of GGBFS and fly ash below 40% of total content, to replace cement content using an acceleration chemical admixture. Adiabatic temperature rise tests were conducted to evaluate the thermal and low-heat properties of green concrete with various cement and SCMs content suitable for mass concrete structures. Recently this green concrete containing only 20% cement and 80% SCMs was applied for the placement of in-situ mass foundations of both buildings and bridges. |
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| Keywords: |
green concrete compressive strength thermal supplementary cementitious materials adiabatic temperature rise low-heat
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