The influence of addition of CRT Glass cullet on selected parameters of concrete composites

International Conference on the Sustainable Energy and Environmental Development

生态环境科学

Pietrzak, A.^1 ; Ulewicz, M.^1

Czestochowa University of Technology, Faculty of Civil Engineering, Czestochowa, Poland^1

关键词: Compression strength;    Computer screens;    Concrete composites;    Dust fractions;    Glass cullet;    Glass wastes;    Properties of concretes;    Research results;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/214/1/012006/pdf
DOI  :  10.1088/1755-1315/214/1/012006

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In recent years, with the abandonment of use of CRT television and computer screens the waste dumps observe systematic growth of amounts of CRT glass. This type of waste is non-biodegradable and unsafe for the environment. The best way to overcome this negative influence of glass waste on the nature surrounding us is to reuse it. The article investigates the influence of addition of CRT glass cullet on selected mechanical properties of concrete and mortar. Composition of two batches of concrete utilized 0-2 mm fraction of glass cullet, as replacement of sand, in amounts of 10 and 15%. The remaining 3 batches utilized CRT glass cullet as addition to dust fraction, calculated in relation to the mass of cement (5, 7.5 and 10% respectively) with volumetric deduction of aggregate. The following were measured for 6 resulting batches of concrete: compression strength after 2, 7 and 28 days of curing; frost resistance for 100 cycles of freezing and defrosting, water absorption and specific gravity. The CRT glass cullet was added to mortar in the following quantities: 5, 7.5 and 10% of cement mass, deducing cement. Research results indicate the validity of use of the previously unused CRT glass cullet in production of concretes.