Glass Cullet as Additive to New Sustainable Composites Based on Alumina Binder

Energies

Jacek Szulej¹  Mariusz Pecio²  Aleksandra Powęzka²  Paweł Ogrodnik³ 

[1] Faculty of Civil Engineering and Architecture, Lublin University of Technology, 20-618 Lublin, Poland;Faculty of Security Engineering and Civil Protection, Main School of Fire Service, 01-629 Warsaw, Poland;Institute of Security Engineering, Main School of Fire Service, 01-629 Warsaw, Poland;

关键词: recycling;    glass cullet;    waste glass powder;    recycled aggregates;    alumina cement;    cement composite;   

DOI  :  10.3390/en14123423

来源: DOAJ

【 摘 要 】

The article investigated the possibility of reusing heat resistant glass cullet to improve the mechanical properties of high-temperature composites. This is an excellent recycled aggregate that may be used as a substitute for alumina cement, and for fine natural aggregate in the production of concrete based on hydraulic binder. The experimental programme comprised of strength testing conducted on 40 × 40 × 160 mm cuboidal samples. The model mixture was modified by filler that comprised glass recyclate, amounting to 5%, 10%, and 15% of the mass of gravel and cement. Given the degree of glass grounding, use was made of two fractions, 0/4 and 0/0.125 mm. Six modified mixtures were produced. Tests were then carried out on their selected physical and mechanical properties as well as the impact of temperature, topography, and chemical composition exerted on the composite. Next, the progress and development of compressive strength and flexural strength after 14 and 28 days of curing were studied. Results showed that concrete with a 5% content of glass dust had a maximum compressive strength at the level of 85.1 MPa. Results also showed that concrete (Zk.I.5) heated at a temperature of 500 °C had a 46% higher compressive strength when compared to basic concrete (Z.I.0). The results show that it is possible to use the described components to obtain a composite that meets requirements imposed on structural materials used in construction engineering.

【 授权许可】

Unknown