Preview

Author(s):
Title:	Zum Kriechen von Beton mit Superabsorbierenden Polymeren unter Druckbeanspruchung
Abstract:	Superabsorbierende Polymere (SAP) speichern im Beton Wasser und geben es während der Hydratation des Zements ab, was eine innere Nachbehandlung darstellt, oder stellen es zur Aktivierung von nicht hydratisiertem Zement in Mikrorissen zur Verfügung, was einer Selbstheilung gleichkommt. Der zweite Effekt liegt den Untersuchungen zugrunde, da Kriechen von Beton, neben viskosen Verformungen des Zementsteins, auch durch Mikrorisse verursacht wird. In einer Versuchsreihe wurden fünf Betonzusammensetzungen einer Druckspannung unterworfen und die dabei auftretenden Verformungen gemessen. Es zeigte sich, dass geringe Mengen von SAP das Kriechen signifikant vermindern. Creep of SAP modified concrete under compressive stress Superabsorbent polymers (SAPs) take up water and release the water during hydration of the cement. This behavior can support internal curing as well as activation of non-hydrated cement in microcracks (self-healing). The second effect forms the basis of investigations since creep is caused by viscous deformations and microcracks. A series of tests has been performed on five concrete mixtures subjected to compressive stress and the resulting deformations were measured. It was found that small amounts of SAP significantly reduce creep.
Source:	Beton- und Stahlbetonbau 114 (2019), No. 7
Page/s:	448-453
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (1.06 MB).
The PDF file can be read, printed and saved.
Duplication and forwarding to third parties is not allowed.

Please enter your email address now to start the order process.
The link for the download will be sent to the email address stated after the
order process has been completed.

Your email address

I am an online subscriber

As an online subscriber of the journal "Beton- und Stahlbetonbau" you can access this article via Wiley Online Library.

I would like to order "Beton- und Stahlbetonbau"

This article has been published in the journal "Beton- und Stahlbetonbau". If you would like to learn more about the journal, you can order a free sample copy or find out more information on our website.

Prices include VAT and postage. Prices for 2017/2018.
€ Prices apply to Germany only. Subject to alterations, errors excepted.