Effects of heavy weight waste glass recycled as fine aggregate on the mechanical properties of mortar specimens

• Published in: Annals of nuclear energy 2017-01, Vol.99, p.372-382
• Main Authors: Choi, So Yeong, Choi, Yoon Suk, Yang, Eun Ik
• Format: Article
• Language: English
• Subjects: Aggregates; Compressive strength; Concrete industry; Flexural strength; Glass; Heavy weight waste glass; Mechanical properties; Modulus of rupture in bending; Mortars; Pore size distribution; Radiation shielding performance; Unit volume weight; Wastes
• ISSN: 0306-4549; 1873-2100
• DOI: 10.1016/j.anucene.2016.09.035

•The properties of mortar used heavy weight waste glass as fine aggregate were compared.•Unit volume weight and shielding performance increased with the content of waste glass.•However, the strength decreased as the waste glass substitution increased.•The waste glass substitution affected on pores ranging from 10–100nm. The quantities of heavy weight waste glass have increased over time due to rapid industrialization and changes in the quality of life. Moreover, most of this waste is not recycled. Concrete is the most widely used construction material, the huge amounts of natural resources are required to make concrete. Therefore, it is necessary to investigate the possibility of recycling of heavy weight waste glass as an ingredient in the manufacturing of concrete. In this study, the suitability of heavy weight waste glass as a fine aggregate material is considered. The results of flow test, unit volume weight, radiation shielding performance, compressive strength, flexural strength, and micropore and macropore distribution of mortar are compared and evaluated. It was found that when the heavy weight waste glass substitution ratio increases, the fluidity, unit volume weight and radiation shielding performance also increase. However, the compressive and flexural strength of mortar gradually decrease with an increase in the substitution ratio of heavy weight waste glass. Moreover, the micro pore size distribution is significantly affected by the substitution of heavy weight waste glass.