DESTRUCTION OF CONCRETE STRUCTURES DUE TO THE AGGRESSIVE ACTION OF SULPHATES CONTAINED IN WATER AND SOIL

DESTRUCCION DE LAS ESTRUCTURAS DE HORMIGON POR LA ACCION AGRESIVA DE LOS SOLFATOS CONTENIDOS EN AGUAS Y SUELOS EN CONTRACTO CON LAS ESTRUCTURAS

Data are given for evaluating the aggressive action of sulphates on structures and on preventive measures to be taken if early failure is to be avoided. This report is divided as follows: 1) porous and capillary structure of hardened concrete. Its relation with the absorption and permeability of the material. 2) movement of a liquid in hardened concrete. Its relation with concrete durability; 3) destruction of concrete structures through the aggressive action of sulphates. Water and moisture as necessary factors for the aggressive action to occur. Necessity of studying soil and climatic conditions of the place where the structures are located; 4) mechanism of aggressive action; 5) forseeable degree of attack as a function of the sulphate concentration in contact soil and water; 6) sulphate-resistant cement (portland cement, pozzolanic cement); 7) forecast of cement behaviour in the presence of sulphate; 8) sulphate-resistant concrete; 9) recommendations concerning the stage prior to construction; 10) recommendations concerning the characteristics necessary for high resistance to sulphate aggression; 11) control of various types of cement on the construction site; 12) concrete quality control on the construction site; 13) recommendations for sampling water and soil coming in contact with structures. Their analysis and forecast of their aggressive properties. /TRRL/

• Corporate Authors:

  Instituto Technico del Hormigon

  Bernardo de Irigoyen 330-3P
  Buenos Aires,   Argentina 
• Authors:
  • Fava, ASC
• Publication Date: 1973

Language

• Spanish

Media Info

• Features: Photos; References;
• Pagination: 25 p.

Subject/Index Terms

• TRT Terms: Aggressive waters; Chemical properties; Concrete; Concrete construction; Concrete hardening; Concrete structures; Corrosion; Corrosion protection; Corrosion resistance; Durability; Quality control; Soils; Statistics; Sulfate resisting cement; Sulfates
• Uncontrolled Terms: Hardened concrete; Quality
• ITRD Terms: 5951: Aggressivity (of water); 4755: Concrete; 5910: Durability; 9063: Quality; 4156: Soil; 6555: Statistics
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Hydraulics and Hydrology; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00163133
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Monograph
• Files: ITRD, TRIS
• Created Date: Mar 14 1978 12:00AM