Study of the damage evolution of the concrete under freeze-thaw cycles using traditional and non-traditional techniques

Romero Mendoza, Héctor Leonardo and Casati Calzada, María Jesús and Gálvez Ruiz, Jaime and Molero, Miguel and Segura Pérez, Ignacio (2011). Study of the damage evolution of the concrete under freeze-thaw cycles using traditional and non-traditional techniques. In: "13th International Congress on the Chemistry of Cement", 03/07/2011 - 08/07/2011, Madrid, España. p. 486.

Description

Title: Study of the damage evolution of the concrete under freeze-thaw cycles using traditional and non-traditional techniques
Author/s:
  • Romero Mendoza, Héctor Leonardo
  • Casati Calzada, María Jesús
  • Gálvez Ruiz, Jaime
  • Molero, Miguel
  • Segura Pérez, Ignacio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 13th International Congress on the Chemistry of Cement
Event Dates: 03/07/2011 - 08/07/2011
Event Location: Madrid, España
Title of Book: Proceedings of 13th International Congress on the Chemistry of Cement
Date: 2011
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería Civil: Construcción
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Some experiments have been performed to investigate the cyclic freeze-thaw deterioration of concrete, using traditional and non-traditional techniques. Two concrete mixes, with different pore structure, were tested in order to compare the behavior of a freeze-thaw resistant concrete from one that is not. One of the concretes was air entrained, high content of cement and low w/c ratio, and the other one was a lower cement content and higher w/c ratio, without air-entraining agent. Concrete specimens were studied under cyclic freeze-thaw conditions according to UNE-CENT/TS 12390-9 test, using 3% NaCl solution as freezing medium (CDF test: Capillary Suction, De-icing agent and Freeze-thaw Test). The temperature and relative humidity were measured during the cycles inside the specimens using embedded sensors placed at different heights from the surface in contact with the de-icing agent solution. Strain gauges were used to measure the strain variations at the surface of the specimens. Also, measurements of ultrasonic pulse velocity through the concrete specimens were taken before, during, and after the freeze-thaw cycles. According to the CDF test, the failure of the non-air-entraining agent concrete was observed before 28 freeze-thaw cycles; contrariwise, the scaling of the air-entraining agent concrete was only 0.10 kg/m 2 after 28 cycles, versus 3.23 kg/m 2 in the deteriorated concrete, after 28 cycles. Similar behavior was observed on the strain measurements. The residual strain in the deteriorated concrete after 28 cycles was 1150 m versus 65 m, in the air-entraining agent concrete. By means of monitoring the changes of ultrasonic pulse velocity during the freeze-thaw cycles, the deterioration of the tested specimens were assessed

More information

Item ID: 12544
DC Identifier: http://oa.upm.es/12544/
OAI Identifier: oai:oa.upm.es:12544
Deposited by: Memoria Investigacion
Deposited on: 07 Aug 2012 09:39
Last Modified: 05 Jun 2018 14:14
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