Curing technologies, strength and durability performance

Author(s): R. Wasserman, A. Bentur
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 37 – 38
Total Pages: 2
Language: English

Abstract: 
Concrete practices and specifications require stringent water curing practices on site to materialize the potential quality of the concrete. Since common practices such as ponding are laborintensive and difficult to control, a variety of technologies have been developed which either eliminate water loss or provide an alternative source of moisture. However the changes in the surface of the concrete due to these treatments at early age might affect long term penetration and permeability performances at the concrete cover which might not be observed in the evaluation of concrete strength which is the common quality control method.
The influence of various curing technologies, standard water immersion, membrane-forming liquid curing compounds and covering with wet geo-textile fabrics was evaluated by determining strength development and permeability of water and air. A variety of influences were resolved which do not necessarily correlate with strength. Most important are (i) The sensitivity of the effect of deficient curing on penetration characteristics is much higher than that on strength, (ii) Curing with wet fabric was as effective as standard water curing with respect to strength and somewhat less effective when considering penetration characteristics, and (iii) The performance of curing compounds was less effective in preserving strength and penetration characteristics, leading to ∼8% and 50% loss in the potential strength and penetration characteristics relative to those which can be achieved in water curing.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00