A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Alkali-activated cementitous materials: Alternative matrices for the immobilisation of hazardous wastes
Part I. Stabilisation of boron
AbstractBoron is a nonmetal element that is present in nature in many kinds of minerals and in a lot of industrial products of public use. The importance of this element lies in the fact that boron compounds are present in some water streams from nuclear power plants (Pressure Water Reactor [PWR]) and that the boron-soluble salts modify Portland cement hydration retarding setting and hardening, and negatively affecting its durability characteristics. Thus, the main objective of this research was to study the efficiency against boron of the solidification systems based on alkali-activated fly ashes. Results show that boron does not significantly alter the hardening process of the new matrices. The presence of boron hardly modifies mechanical strengths of activated fly ashes and additionally, boron leaching tests indicate that this stabilisation/solidification system is more effective than traditional ones.
Alkali-activated cementitous materials: Alternative matrices for the immobilisation of hazardous wastes
Part I. Stabilisation of boron
AbstractBoron is a nonmetal element that is present in nature in many kinds of minerals and in a lot of industrial products of public use. The importance of this element lies in the fact that boron compounds are present in some water streams from nuclear power plants (Pressure Water Reactor [PWR]) and that the boron-soluble salts modify Portland cement hydration retarding setting and hardening, and negatively affecting its durability characteristics. Thus, the main objective of this research was to study the efficiency against boron of the solidification systems based on alkali-activated fly ashes. Results show that boron does not significantly alter the hardening process of the new matrices. The presence of boron hardly modifies mechanical strengths of activated fly ashes and additionally, boron leaching tests indicate that this stabilisation/solidification system is more effective than traditional ones.
Alkali-activated cementitous materials: Alternative matrices for the immobilisation of hazardous wastes
Part I. Stabilisation of boron
Palomo, A. (author) / López dela Fuente, J.I. (author)
Cement and Concrete Research ; 33 ; 281-288
2002-08-12
8 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2003
| British Library Conference Proceedings | 2003
| British Library Online Contents | 2003