Improvement of the rheological behavior: High-strength and ultra-high performance concretes

Translated title of the contribution: Improvement of the rheological behavior: High-strength and ultra-high performance concretes

Johann Plank

Research output: Contribution to specialist publicationArticle

Abstract

High-strength and ultra-high performance concretes (UHPCs) play a key role in the improvement of the rheological behavior of structural components. High-strength and UHPCs gain more and more in importance across the world. They are characterized by an optimized packing of the particles as well as by extremely low water/cement ratios of less than 0.25. The addition of polycarboxylate superplasticizers to concretes with such low water content results in very sticky, creeping concretes and the PCEs fail completely. It is shown hat a combination of common PCE superplasticizers and simple, non-ionic molecules achieves concretes with very good flow characteristics at high flow rates and without the associated stickiness.

Translated title of the contributionImprovement of the rheological behavior: High-strength and ultra-high performance concretes
Original languageEnglish
Pages13
Number of pages1
Volume83
No2
Specialist publicationBetonwerk und Fertigteil-Technik/Concrete Precasting Plant and Technology
StatePublished - 2017
Externally publishedYes

Fingerprint

Dive into the research topics of 'Improvement of the rheological behavior: High-strength and ultra-high performance concretes'. Together they form a unique fingerprint.

Cite this