Results 101 to 110 of about 7,814 (231)

Technological evolution of concrete : from ancient times to ultra high performance concrete [PDF]

open access: yes, 2010
Since the fall of the Roman Empire, concrete only suffered significant advances with the discovery of portland cement. The technological knowledge that the Romans held was empirical, based on the principle of trial and error, and allowed the discovery of
Camões, Aires, Ferreira, Rui Miguel
core  

Ultra-high durable concrete: A way towards safe and durable structures [PDF]

open access: yes, 2016
Durability of construction and building materials is a pivotal issue for any civil engineering project in the context of sustainable development.
Camões, Aires, Ferdosian, Iman
core  

Numerical Analysis and Resistance Design of UHPC- and UHTCC-Encased Rectangular Steel Tubular Columns Subject to Axial Compression

open access: yesBuildings
Ultra-high performance concrete (UHPC) and ultra-high toughness cementitious composite (UHTCC) offer superior mechanical properties compared to normal concrete, with UHPC excelling in compressive strength and UHTCC in tensile ductility and crack ...
Xiao-Yang Min   +5 more
doaj   +1 more source

Effects of Steel and Polypropylene Fiber Addition on Interface Bond Strength between Normal Concrete Substrate andSelf-Compacting Concrete Topping [PDF]

open access: yes, 2012
Based on facts that the composite action in semi-precast and strengthened structural system depends on the bond strength of the interface between concrete faces of different ages, this preliminary research is aimed to investigate effects of mixed ...
Imam , Satyarno   +2 more
core  

Effect of silica fume on the performance of high-early-strength UHPC prepared with magnesium ammonium phosphate cement

open access: yesCase Studies in Construction Materials
Although ultra-high performance concrete (UHPC) prepared from Portland cement has high long-term strength and durability, its early strength development is still can be enhanced for shortening the prefabrication period or using it as a rapid repair ...
Zhi-hai He   +6 more
doaj   +1 more source

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