ECO-CONCRETE FOR PRECAST ELEMENTS WITH EFFECTIVE MINERAL MICRO-AND ECO-FILLERS

Gheorghe Alexandru David, Joachim Juhart, Elke Krischey, Florian Mittermayr, Markus Krüger

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Abstract

One essential requirement of precast concrete is a high early age strength, usually reached by a high content of fine Portland cement (OPC). In times of climate change, however a reduction of the global warming potential GWP and demand of primary energy PE of concrete is a desirable goal that can be reached by a low content of OPC. In this study it is shown, how mineral micro-fillers (MFs) in combination with so-called eco-fillers (EFs) can help to reduce the content of OPC of precast concrete leading to a reduction of GWP (up to -24 %) and PE (-14 %) while keeping an early age strength as high as that of a standard precast concrete. It is analysed how different fillers, depending on their fineness and type, influence the early- age- (i.e. 8 h with heat treatment), 28 d- strength, workability and demand of superplasticizer. Powder-materials of limestones, dolomites and ground granulated blast-furnace slag were used as very fine MFs (d50 < 3 µm) and EFs (3 µm ≤ d50 ≤ 30 µm).
Originalspracheenglisch
TitelConcrete with Supplementary Cementitious materials
PublikationsstatusVeröffentlicht - Aug 2016

Dies zitieren

David, G. A., Juhart, J., Krischey, E., Mittermayr, F., & Krüger, M. (2016). ECO-CONCRETE FOR PRECAST ELEMENTS WITH EFFECTIVE MINERAL MICRO-AND ECO-FILLERS. in Concrete with Supplementary Cementitious materials

ECO-CONCRETE FOR PRECAST ELEMENTS WITH EFFECTIVE MINERAL MICRO-AND ECO-FILLERS. / David, Gheorghe Alexandru; Juhart, Joachim; Krischey, Elke; Mittermayr, Florian; Krüger, Markus.

Concrete with Supplementary Cementitious materials. 2016.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

David, GA, Juhart, J, Krischey, E, Mittermayr, F & Krüger, M 2016, ECO-CONCRETE FOR PRECAST ELEMENTS WITH EFFECTIVE MINERAL MICRO-AND ECO-FILLERS. in Concrete with Supplementary Cementitious materials.
David GA, Juhart J, Krischey E, Mittermayr F, Krüger M. ECO-CONCRETE FOR PRECAST ELEMENTS WITH EFFECTIVE MINERAL MICRO-AND ECO-FILLERS. in Concrete with Supplementary Cementitious materials. 2016
David, Gheorghe Alexandru ; Juhart, Joachim ; Krischey, Elke ; Mittermayr, Florian ; Krüger, Markus. / ECO-CONCRETE FOR PRECAST ELEMENTS WITH EFFECTIVE MINERAL MICRO-AND ECO-FILLERS. Concrete with Supplementary Cementitious materials. 2016.
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title = "ECO-CONCRETE FOR PRECAST ELEMENTS WITH EFFECTIVE MINERAL MICRO-AND ECO-FILLERS",
abstract = "One essential requirement of precast concrete is a high early age strength, usually reached by a high content of fine Portland cement (OPC). In times of climate change, however a reduction of the global warming potential GWP and demand of primary energy PE of concrete is a desirable goal that can be reached by a low content of OPC. In this study it is shown, how mineral micro-fillers (MFs) in combination with so-called eco-fillers (EFs) can help to reduce the content of OPC of precast concrete leading to a reduction of GWP (up to -24 {\%}) and PE (-14 {\%}) while keeping an early age strength as high as that of a standard precast concrete. It is analysed how different fillers, depending on their fineness and type, influence the early- age- (i.e. 8 h with heat treatment), 28 d- strength, workability and demand of superplasticizer. Powder-materials of limestones, dolomites and ground granulated blast-furnace slag were used as very fine MFs (d50 < 3 µm) and EFs (3 µm ≤ d50 ≤ 30 µm).",
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AU - David, Gheorghe Alexandru

AU - Juhart, Joachim

AU - Krischey, Elke

AU - Mittermayr, Florian

AU - Krüger, Markus

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N2 - One essential requirement of precast concrete is a high early age strength, usually reached by a high content of fine Portland cement (OPC). In times of climate change, however a reduction of the global warming potential GWP and demand of primary energy PE of concrete is a desirable goal that can be reached by a low content of OPC. In this study it is shown, how mineral micro-fillers (MFs) in combination with so-called eco-fillers (EFs) can help to reduce the content of OPC of precast concrete leading to a reduction of GWP (up to -24 %) and PE (-14 %) while keeping an early age strength as high as that of a standard precast concrete. It is analysed how different fillers, depending on their fineness and type, influence the early- age- (i.e. 8 h with heat treatment), 28 d- strength, workability and demand of superplasticizer. Powder-materials of limestones, dolomites and ground granulated blast-furnace slag were used as very fine MFs (d50 < 3 µm) and EFs (3 µm ≤ d50 ≤ 30 µm).

AB - One essential requirement of precast concrete is a high early age strength, usually reached by a high content of fine Portland cement (OPC). In times of climate change, however a reduction of the global warming potential GWP and demand of primary energy PE of concrete is a desirable goal that can be reached by a low content of OPC. In this study it is shown, how mineral micro-fillers (MFs) in combination with so-called eco-fillers (EFs) can help to reduce the content of OPC of precast concrete leading to a reduction of GWP (up to -24 %) and PE (-14 %) while keeping an early age strength as high as that of a standard precast concrete. It is analysed how different fillers, depending on their fineness and type, influence the early- age- (i.e. 8 h with heat treatment), 28 d- strength, workability and demand of superplasticizer. Powder-materials of limestones, dolomites and ground granulated blast-furnace slag were used as very fine MFs (d50 < 3 µm) and EFs (3 µm ≤ d50 ≤ 30 µm).

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