Combined NDT techniques for Early Age monitoring of Cement Based Materials

Author(s): Gonzalo Barluenga, Javier Puentes, Irene Palomar, Cynthia Guardia
Paper category: Proceedings
Book title: Proceedings of the 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures Volume 1
Editor(s): Stéphanie Staquet and Dimitrios Aggelis
ISBN:978-2-35158-199-5
e-ISBN:978-2-35158-198-8
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 113-119
Total Pages: 7
Language : English

Abstract: Cement Based Materials (CBM) composition, environment and curing conditions and the structural member size can produce undesirable effects on the material at early age (EA), as EA cracking. Thus, a robust testing methodology is required to monitor CBM at EA. To take advantage of NDT for EA monitoring but considering the uncertainty derived from indirect measurements, a testing methodology that combines simultaneous measuring of temperature, capillary pressure, evaporation rate, free shrinkage, and p- and s- waves Ultrasonic Pulse Velocity (UPV) was developed. The multi-parameter technique allows to follow both the chemical, microstructural and mechanical development processes that take place in CBM at EA. The experimental setup can be used for pastes and concretes and has been tried with good results in laboratory conditions, in a climate chamber and in on-site real scale applications.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00