Recovery of Mineral Wool Waste and Recycled Aggregates for Use in the Manufacturing Processes of Masonry Mortars

The environmental problems caused by industrial waste are of a universal nature. In this sense, achieving an adequate management of construction and demolition waste has become one of the great challenges of today’s society. This work studies the possibility of recovering mineral wool thermal insula...

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Bibliographic Details
Published in:Processes 2022-05, Vol.10 (5), p.830
Main Authors: Ferrández, Daniel, Álvarez, Manuel, Saiz, Pablo, Zaragoza-Benzal, Alicia
Format: Article
Language:English
Subjects:
Aggregates
Cement
Ceramic fibers
Climate change
Concrete aggregates
Concrete mixing
Construction management
Consumption
Demolition
Environmental impact
Fibers
Flexural strength
Industrial wastes
International organizations
Manufacturing
Masonry
Mineral wool
Mortars (material)
Particle size
Physical properties
Raw materials
Recycling
Thermal conductivity
Thermal insulation
Waste disposal
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Summary:The environmental problems caused by industrial waste are of a universal nature. In this sense, achieving an adequate management of construction and demolition waste has become one of the great challenges of today’s society. This work studies the possibility of recovering mineral wool thermal insulation waste for its reincorporation into the manufacturing process of masonry mortar. To this end, an experimental campaign has been conducted with mortars made with natural aggregate and two types of recycled aggregates: concrete and mixed ceramic, in which mineral wool fibers are incorporated as a partial replacement of sand in percentages of 0%, 10% and 20%. The results show that, although the traditional mortars offer better technical performance, the mortars made with recycled aggregate present adequate viability for use on-site. Furthermore, it has been concluded that the incorporation of recycled mineral wool fibers in the mortar matrix decreases the thermal conductivity and shrinkage during the setting of these materials, increasing their mechanical flexural strength and durability.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr10050830