Design Of High Performance Concrete With Environmental Benefits

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Title: Design Of High Performance Concrete With Environmental Benefits

Author(s): Patricia Kara and Giacomo Moriconi

Publication: Special Publication

Volume: 305

Issue:

Appears on pages(s): 39.1-39.10

Keywords: HPC; glass waste powder; poly-phosphonic superplasticizer; workability; compressive strength

Date: 9/1/2015

Abstract:
Advances in concrete technology have led to the development of a new class of cementitious composites with improved mechanical and durability properties, named high performance concrete (HPC). Along with improved performance of HPC there is high cement consumption in the production of this type of concrete which leads to certain increases in CO2 emissions. Ecological and environmental benefits support the use of waste glass powder as supplementary cementing material by decreasing the necessity for landfills, by the reduction of non-renewable natural resource consumption, by the reduction of energy demand for cement production (less cement is needed), and by reducing the greenhouse gas emissions. The present research is focused on design of an HPC using different glass waste cullet ground along with sand into powders which have the most promising effect on the properties of concrete and the effectiveness of application of new generation poly-phosphonic superplasticizers blended with PCE based superplasticizer for HPC concrete. Portland cement is substituted at a level of 20% by mass with glass waste powder which gives the improvement of workability and mechanical properties of the concrete what makes glass powder a valuable Portland cement substitute.