A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Optimization of Portland-Pozzolan Concrete, Airport Runways
This report briefly reviews the history of rigid concrete pavements. The basic constituents of concrete are defined, along with their physical and chemical properties. Pozzolans, and their importance to the durability of concrete, are described, from ancient use of volcanic ash in concrete constructed by the Romans, to modern day use of coal combustion byproducts along with air-entrainment and water-reducing admixtures in Portland-pozzolan concrete. Existing empirical equations for Portland-pozzolan concrete mix design are defined, tested, and refined. A Portland-pozzolan concrete optimization theorem (for determination of optimum percent replacement of Portland cement with fly ash) is presented. The results of demonstration projects are shared. Pitfalls in design, material specification, construction, and finished concrete protection are identified. Social and political considerations are described, along with suggestions to address them.
Optimization of Portland-Pozzolan Concrete, Airport Runways
This report briefly reviews the history of rigid concrete pavements. The basic constituents of concrete are defined, along with their physical and chemical properties. Pozzolans, and their importance to the durability of concrete, are described, from ancient use of volcanic ash in concrete constructed by the Romans, to modern day use of coal combustion byproducts along with air-entrainment and water-reducing admixtures in Portland-pozzolan concrete. Existing empirical equations for Portland-pozzolan concrete mix design are defined, tested, and refined. A Portland-pozzolan concrete optimization theorem (for determination of optimum percent replacement of Portland cement with fly ash) is presented. The results of demonstration projects are shared. Pitfalls in design, material specification, construction, and finished concrete protection are identified. Social and political considerations are described, along with suggestions to address them.
Optimization of Portland-Pozzolan Concrete, Airport Runways
Bergman, Lynn A. (author)
Construction Institute Sessions at ASCE Civil Engineering Conference 2001 ; 2001 ; Houston, Texas, United States
Construction and Materials Issues 2001 ; 145-155
2001-10-08
Conference paper
Electronic Resource
English
Optimization of Portland-Pozzolan Concrete, Airport Runways
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