The aggressiveness of pig slurry to cement mortars

Massana Guitart, Jordi and Guerrero Bustos, Ana and Antón Fuentes, Rebeca and Garcimartin Molina, Miguel Angel and Sanchez Espinosa, Elvira (2013). The aggressiveness of pig slurry to cement mortars. "Biosystems Engineering", v. 114 (n. 2); pp. 124-134. ISSN 1537-5110.


Title: The aggressiveness of pig slurry to cement mortars
  • Massana Guitart, Jordi
  • Guerrero Bustos, Ana
  • Antón Fuentes, Rebeca
  • Garcimartin Molina, Miguel Angel
  • Sanchez Espinosa, Elvira
Item Type: Article
Título de Revista/Publicación: Biosystems Engineering
Date: February 2013
Volume: 114
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Construcción y Vías Rurales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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The aim was to measure the behaviour of various mortars employed in livestock media in central Spain and to analyse the aggressiveness of pig slurry to cement blended with fly ash mortars. To achieve this, mortar specimens were immersed in ponds storing pig slurry. Mortar specimens, of 40 ? 40 ? 160 mm, were made from four types of cement commonly used and recommended for rural areas. The types were a sulphate-resistant Portland cement and three cements blended in different proportions with fly ash and limestone filler. After 3, 6, 12, 24, 36, 48 and 60 months of exposure, three or four specimens of each cement type were removed from the pond and washed with water. Their compressive strength and microstructure (X-ray diffraction, mercury intrusion pore-symmetry, thermal analysis and scanning electron microscopy) were then measured. Sulphate-resistant Portland cement (SR-PC), found to be more susceptible to degradation due to its greater proportion of macro-pores and increased total porosity, was found not to be suitable for use with livestock. After 60 months of immersion in the pig slurry medium, CEM II-A (40.3%) mortar retained the greatest compressive strength. Mortars with less than 20% replacement of cement by fly ash were found to be the most durable, with the most suitable mechanical behaviour.

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Item ID: 26650
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Deposited by: Memoria Investigacion
Deposited on: 16 Jun 2014 15:23
Last Modified: 30 Nov 2015 10:08
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