THE ACTION OF SOME AGGRESSIVE SOLUTIONS ON PORTLAND, POZZOLANIC AND BLASTFURNACE SLAG CEMENT MORTARS

An account of the results of a systematic investigation into the effects of percolation by solutions of magnesium sulphate and magnesium chloride of the same normality, respectively, through mortar samples manufactured with different types of cement is given in this article. The aim of the investigation is the comparative evaluation of the behaviour of the single cements under the attack from the two aggressive solutions, as well as the search for possible relationships between the manifold factors responsible, to a different extent, for the lowering of the mechanical strength of the resultant mortars. The results show that magnesium sulphate solution is more aggressive than magnesium chloride. Percolation by magnesium sulphate can also cause the cement sample to crumble. There is a relationship between the amount of magnesium retained after the percolation tests, and a decrease in mortar strength. Mortar strength decreases from between 20 and 40%, depending on the type of cement used.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Frigione, G
  • Sersale, R
• Publication Date: 1989-11

Language

• English

Media Info

• Pagination: p. 885-893
• Serial:
  • Cement and Concrete Research
  • Volume: 19
  • Issue Number: 6
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Cement; Chlorides; Corrosion; Deterioration; Magnesium; Mortar; Percolation; Strength of materials; Sulfates
• Uncontrolled Terms: Decreases
• ITRD Terms: 4758: Cement; 5252: Corrosion; 9009: Decrease; 5255: Deterioration; 7314: Halide; 7188: Magnesium; 4769: Mortar; 4315: Seepage; 5544: Strength (mater); 7310: Sulphate
• Subject Areas: Materials;

Filing Info

• Accession Number: 00498867
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM