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Monitoring the Air Influence on Cement-Lime Mortar Hydration Using Low-Field Nuclear Magnetic Resonance Relaxometry

Simina, M, Molnar, L, Manea, D and Ardelean, I (2012) Monitoring the Air Influence on Cement-Lime Mortar Hydration Using Low-Field Nuclear Magnetic Resonance Relaxometry Applied Magnetic Resonance, 43 (3). pp. 443-450.

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Abstract

In the present study, we investigate the relationship between the nuclear magnetic resonance relaxation rate and the hydration time in two types of masonry cement-lime mortar. The studies are performed with the mortars both in an enclosed and a standard atmosphere to monitor the air influence on cement-lime mortar hydration and setting. The constituents of the investigated mortar samples are: cement, slaked lime, sand and water. They were mixed to achieve a flow spread of 10 cm. These types of mortars are usually suitable for historical masonry maintenance, but they can also be used for modern buildings, or even for concrete structures coatings to prevent concrete carbonation. All nuclear magnetic resonance relaxation experiments were performed at 20 °C using a low-field nuclear magnetic resonance instrument operable at 20 MHz proton resonance frequency. A slowing down of the hydration kinetics is demonstrated for the samples kept in closed atmosphere conditions. The results contribute to the understanding of cement-lime mortar hydration, carbonation and setting under closed atmosphere conditions. © 2012 Springer-Verlag.

Item Type: Article
Authors :
NameEmailORCID
Simina, Mm.simina@surrey.ac.ukUNSPECIFIED
Molnar, LUNSPECIFIEDUNSPECIFIED
Manea, DUNSPECIFIEDUNSPECIFIED
Ardelean, IUNSPECIFIEDUNSPECIFIED
Date : 10 October 2012
Identification Number : https://doi.org/10.1007/s00723-012-0389-7
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:23
Last Modified : 17 May 2017 13:23
URI: http://epubs.surrey.ac.uk/id/eprint/839000

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