1. Statistical analysis of recycled aggregates derived from different sources for sub-base applications;Barbudo;Constr. Build. Mater.,2012
2. Use of selected waste materials in concrete mixes;Batayneh;Waste Manag.,2007
3. Belgian standard, 1987. NBN b 15-231 concrete testing - Resistance to freezing.
4. Belgian standard, 1977. NBN b 05-203 resistance of building materials to freezing and thawing cycles.
5. Belgian standard, 1976. NBN b 15-230 concrete testing - Non destructive testing - Measurement of the resonant frequencies.