Hydrophobic and superhydrophobic strain-hardening cement-based composites

Publikation: Spezielle Publikationen/BeiträgeSonderbeitrag/Feuilleton (Feature)BeigetragenBegutachtung

Beitragende

Abstract

Strain hardening cement-based composites (SHCC) can be a good candidate for use in critical infrastructure elements that require extended lifetimes. The use of hydrophobic or superhydrophobic (HSH) admixtures that are intended to generate air voids whose size and distribution can be tailored can enhance the performance of SHCC. These composites consist of fine grained cementitious matrix and typically 2% by volume of polymeric fiber reinforcement. Under tensile loading, they exhibit a pronounced ductility resulting from formation of fine multiple cracks. They also demonstrate an increase in load carrying capacity accompanied by a large deformation due to extensive multiple cracking. Superhydrophobic hybridization engages interdisciplinary work combining biomimetics, chemistry and nanotechnology to resolve fundamental problems with concrete, such as insufficient durability and corrosion resistance. When these materials are combined with fiber reinforcement, cracks within the cementitious materials are restrained to small sizes, which is expected to result in less water absorption and superior durability.

Titel in Übersetzung
Hydrophober und superhydrophober hochduktiler Beton

Details

OriginalspracheEnglisch
Seiten48-56
Seitenumfang9
Band82
Ausgabenummer6
FachzeitschriftBetonwerk und Fertigteil-Technik/Concrete Plant and Precast Technology
PublikationsstatusVeröffentlicht - 2016
Peer-Review-StatusJa
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