RESEARCH INTO AND IMPROVEMENT OF DAMAGE BY ALKALI TO CONCRETE STRUCTURES

ERFORSCHUNG UND SANIERUNG VON ALKALISCHAEDEN AN BETONBAUWERKEN

THE AIM IS TO WORK OUT PROPOSALS FOR THE CONSERVATION OF DAMAGED OR POTENTIALLY ENDANGERED CONCRETE STRUCTURES; THE AIM IS TO CARRY OUT PROVISIONAL IMMEDIATE MEASURES AND TO WORK AT THE LONG-TERM IMPROVEMENT OF THESE STRUCTURES USING INFORMATION OBTAINED ON THE CHEMICAL AND MECHANICAL REACTIONS OF ALKALIS IN CONCRETE. PLAN OF WORK: 1 - STUDY OF STRUCTURES DAMAGED BY ALKALIS IN SITU AND IN THE LABORATORY, TAKING ACCOUNT OF THE EFFECTS OF LOCAL CONDITIONS; 2 - STUDY OF THE EFFECTIVENESS OF CHEMICAL CONSERVATION AND REPAIR METHODS; 3 - WORKING OUT OF RECOMMENDATIONS FOR PREVENTIVE MEASURES TO BE APPLIED TO POTENTIALLY ENDANGERED STRUCTURES, FOR IMMEDIATE CONSERVATION MEASURES TO BE APPLIED TO STRUCTURES ALREADY DAMAGED, AND FOR LONG-TERM MECHANICAL, CHEMICAL OR COMBINED IMPROVEMENT MEASURES.