Rony
Moderator
Abstract
This paper presents a laboratory investigation of new application opportunity of building waste
materials and potential usage as a component in production of gypsum based building materials.
Production of new type eco-friendly gypsum based composites was studied as a potential utilisation
sector. The main focus is directed on gypsum binder mixture properties examination with different
proportion of incorporated construction waste materials 5-45%. It was designed and tested fresh state
behaviour of gypsum-waste mixture and specimens in standard water/binder ratio. Construction waste
material is a fines obtained by combined crushing-sorting installations. Slump flflow test of gypsum
waste suspension and dry samples characteristics as compressive and flflexural strength, water
absorption and shrinkage were tested. On the basis of the obtained results, it was established that the
prepared gypsum-waste mixture is an alternative for the production of gypsum based building
products. Using the tested mixture in manufacturing processes lead to reduction in the energy and
water consumption.
Key words: building waste, composite, sustainability, gypsum
This paper presents a laboratory investigation of new application opportunity of building waste
materials and potential usage as a component in production of gypsum based building materials.
Production of new type eco-friendly gypsum based composites was studied as a potential utilisation
sector. The main focus is directed on gypsum binder mixture properties examination with different
proportion of incorporated construction waste materials 5-45%. It was designed and tested fresh state
behaviour of gypsum-waste mixture and specimens in standard water/binder ratio. Construction waste
material is a fines obtained by combined crushing-sorting installations. Slump flflow test of gypsum
waste suspension and dry samples characteristics as compressive and flflexural strength, water
absorption and shrinkage were tested. On the basis of the obtained results, it was established that the
prepared gypsum-waste mixture is an alternative for the production of gypsum based building
products. Using the tested mixture in manufacturing processes lead to reduction in the energy and
water consumption.
Key words: building waste, composite, sustainability, gypsum