Potential for Use of Recycled Cathode Ray Tube Glass in Making Concrete Blocks and Paving Flags
The potential to use waste glass, including cathode ray tube (CRT) glass, for making new products or as an admixture to existing ones is being intensively investigated. This kind of research intensified particularly in the period after CRT TV sets and computer monitors were replaced in the market by...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/15/4/1499 |
| _version_ | 1797478378245193728 |
|---|---|
| author | Dušan Grdić Iva Despotović Nenad Ristić Zoran Grdić Gordana Topličić Ćurčić |
| author_facet | Dušan Grdić Iva Despotović Nenad Ristić Zoran Grdić Gordana Topličić Ćurčić |
| author_sort | Dušan Grdić |
| collection | DOAJ |
| description | The potential to use waste glass, including cathode ray tube (CRT) glass, for making new products or as an admixture to existing ones is being intensively investigated. This kind of research intensified particularly in the period after CRT TV sets and computer monitors were replaced in the market by the advanced technology of thin film transistor (TFT) and liquid crystal display (LCD) screens. Cathode ray tube glass represents a considerable part of electronic waste (e-waste). E-waste globally increases at a far higher rate than other solid waste materials. There is a possibility to recycle cathode ray tube glass and use it in the construction industry. This paper shows the test results of physical and mechanical properties of blocks and paving flags. The reference specimen was made with quartz sand, while the other product employed a combination of quartz sand and ground panel cathode ray tube glass. The glass was ground to the fraction 0.25/1.00 mm, which corresponds to quartz sand fineness. The following tests were performed: shape and dimensions, resistance to freeze/thaw and de-icing salts, water absorption, splitting tensile strength and tensile strength by bending. Special attention was paid to the tests of Böhme wear resistance, slip resistance of the top surface of CRT products using a pendulum, radioactivity and leaching. The texture of the experimental concrete products was observed by SEM (scanning electron microscopy) and analyzed. The results obtained by experimental testing unequivocally show that CRT glass can successfully be used for making concrete blocks and paving flags. |
| first_indexed | 2024-03-09T21:31:03Z |
| format | Article |
| id | doaj.art-0191df4d3d4b4bb09be1c1c6f0066cea |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T21:31:03Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-0191df4d3d4b4bb09be1c1c6f0066cea2023-11-23T20:54:13ZengMDPI AGMaterials1996-19442022-02-01154149910.3390/ma15041499Potential for Use of Recycled Cathode Ray Tube Glass in Making Concrete Blocks and Paving FlagsDušan Grdić0Iva Despotović1Nenad Ristić2Zoran Grdić3Gordana Topličić Ćurčić4Faculty of Civil Engineering and Architecture, University of Niš, Aleksandra Medvedeva 14, 18000 Niš, SerbiaFaculty of Mechanical and Civil Engineering in Kraljevo, University of Kragujevac, Dositejeva 19, 36000 Kraljevo, SerbiaFaculty of Civil Engineering and Architecture, University of Niš, Aleksandra Medvedeva 14, 18000 Niš, SerbiaFaculty of Civil Engineering and Architecture, University of Niš, Aleksandra Medvedeva 14, 18000 Niš, SerbiaFaculty of Civil Engineering and Architecture, University of Niš, Aleksandra Medvedeva 14, 18000 Niš, SerbiaThe potential to use waste glass, including cathode ray tube (CRT) glass, for making new products or as an admixture to existing ones is being intensively investigated. This kind of research intensified particularly in the period after CRT TV sets and computer monitors were replaced in the market by the advanced technology of thin film transistor (TFT) and liquid crystal display (LCD) screens. Cathode ray tube glass represents a considerable part of electronic waste (e-waste). E-waste globally increases at a far higher rate than other solid waste materials. There is a possibility to recycle cathode ray tube glass and use it in the construction industry. This paper shows the test results of physical and mechanical properties of blocks and paving flags. The reference specimen was made with quartz sand, while the other product employed a combination of quartz sand and ground panel cathode ray tube glass. The glass was ground to the fraction 0.25/1.00 mm, which corresponds to quartz sand fineness. The following tests were performed: shape and dimensions, resistance to freeze/thaw and de-icing salts, water absorption, splitting tensile strength and tensile strength by bending. Special attention was paid to the tests of Böhme wear resistance, slip resistance of the top surface of CRT products using a pendulum, radioactivity and leaching. The texture of the experimental concrete products was observed by SEM (scanning electron microscopy) and analyzed. The results obtained by experimental testing unequivocally show that CRT glass can successfully be used for making concrete blocks and paving flags.https://www.mdpi.com/1996-1944/15/4/1499concrete blocksconcrete flagsrecycled cathode ray tube glassmechanical characteristicsradioactivityleaching test |
| spellingShingle | Dušan Grdić Iva Despotović Nenad Ristić Zoran Grdić Gordana Topličić Ćurčić Potential for Use of Recycled Cathode Ray Tube Glass in Making Concrete Blocks and Paving Flags Materials concrete blocks concrete flags recycled cathode ray tube glass mechanical characteristics radioactivity leaching test |
| title | Potential for Use of Recycled Cathode Ray Tube Glass in Making Concrete Blocks and Paving Flags |
| title_full | Potential for Use of Recycled Cathode Ray Tube Glass in Making Concrete Blocks and Paving Flags |
| title_fullStr | Potential for Use of Recycled Cathode Ray Tube Glass in Making Concrete Blocks and Paving Flags |
| title_full_unstemmed | Potential for Use of Recycled Cathode Ray Tube Glass in Making Concrete Blocks and Paving Flags |
| title_short | Potential for Use of Recycled Cathode Ray Tube Glass in Making Concrete Blocks and Paving Flags |
| title_sort | potential for use of recycled cathode ray tube glass in making concrete blocks and paving flags |
| topic | concrete blocks concrete flags recycled cathode ray tube glass mechanical characteristics radioactivity leaching test |
| url | https://www.mdpi.com/1996-1944/15/4/1499 |
| work_keys_str_mv | AT dusangrdic potentialforuseofrecycledcathoderaytubeglassinmakingconcreteblocksandpavingflags AT ivadespotovic potentialforuseofrecycledcathoderaytubeglassinmakingconcreteblocksandpavingflags AT nenadristic potentialforuseofrecycledcathoderaytubeglassinmakingconcreteblocksandpavingflags AT zorangrdic potentialforuseofrecycledcathoderaytubeglassinmakingconcreteblocksandpavingflags AT gordanatopliciccurcic potentialforuseofrecycledcathoderaytubeglassinmakingconcreteblocksandpavingflags |