Properties of mortar with waste tyre rubber as partial sand replacement

Around 1000 million waste tyres are generated annually and over 5000 million more are estimated to be discarded by 2030. It is estimated that one waste tyre is discarded per person in developed areas; hence 1 billion waste tyres are disposed worldwide. Waste tyre is difficult to manage as it takes u...

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Main Authors: Chong, Beng Wei, Rokiah, Othman, Tan, Wei Sheng, Putra Jaya, Ramadhansyah, Mohd Mustafa Al Bakri, Abdullah
Format: Article
Language:English
Published: Trans Tech Publications, Switzerland 2021
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/30528/
http://umpir.ump.edu.my/id/eprint/30528/1/Properties%20of%20Mortar%20with%20Waste%20Tyre%20Rubber%20as%20Partial%20Sand.pdf
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author Chong, Beng Wei
Rokiah, Othman
Tan, Wei Sheng
Putra Jaya, Ramadhansyah
Mohd Mustafa Al Bakri, Abdullah
author_facet Chong, Beng Wei
Rokiah, Othman
Tan, Wei Sheng
Putra Jaya, Ramadhansyah
Mohd Mustafa Al Bakri, Abdullah
author_sort Chong, Beng Wei
building UMP Institutional Repository
collection Online Access
description Around 1000 million waste tyres are generated annually and over 5000 million more are estimated to be discarded by 2030. It is estimated that one waste tyre is discarded per person in developed areas; hence 1 billion waste tyres are disposed worldwide. Waste tyre is difficult to manage as it takes up space, is difficult to compress and combustion of tyre releases highly toxic substance into the air. Hence, most of them end up in the landfill, as past research data estimated that currently 4 billion waste tyres can be found in landfills. In this study, up to 30% tyre rubber with a fine grind size of 300nm to 500nm was used as partial sand replacement in type N cement mortar. The rubber was treated with 1M NaOH solution to enhance its ability to bond with the other constituent materials. Tests were conducted to determine the properties of rubberised mortar, including consistency, compressive strength, flexural strength, water absorption and acid attack. From the test result, tyre rubber reduced the consistency and strength of mortar. Mathematical regression model showed that reduction of strength occurred in a second-order polynomial function with percentage of rubber. It was concluded that at up to 20% replacement rubberised mortar has the best resistance against water absorption and acid attack while still achieving the target strength.
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spelling ump-305282021-04-14T03:24:28Z http://umpir.ump.edu.my/id/eprint/30528/ Properties of mortar with waste tyre rubber as partial sand replacement Chong, Beng Wei Rokiah, Othman Tan, Wei Sheng Putra Jaya, Ramadhansyah Mohd Mustafa Al Bakri, Abdullah TH Building construction Around 1000 million waste tyres are generated annually and over 5000 million more are estimated to be discarded by 2030. It is estimated that one waste tyre is discarded per person in developed areas; hence 1 billion waste tyres are disposed worldwide. Waste tyre is difficult to manage as it takes up space, is difficult to compress and combustion of tyre releases highly toxic substance into the air. Hence, most of them end up in the landfill, as past research data estimated that currently 4 billion waste tyres can be found in landfills. In this study, up to 30% tyre rubber with a fine grind size of 300nm to 500nm was used as partial sand replacement in type N cement mortar. The rubber was treated with 1M NaOH solution to enhance its ability to bond with the other constituent materials. Tests were conducted to determine the properties of rubberised mortar, including consistency, compressive strength, flexural strength, water absorption and acid attack. From the test result, tyre rubber reduced the consistency and strength of mortar. Mathematical regression model showed that reduction of strength occurred in a second-order polynomial function with percentage of rubber. It was concluded that at up to 20% replacement rubberised mortar has the best resistance against water absorption and acid attack while still achieving the target strength. Trans Tech Publications, Switzerland 2021 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/30528/1/Properties%20of%20Mortar%20with%20Waste%20Tyre%20Rubber%20as%20Partial%20Sand.pdf Chong, Beng Wei and Rokiah, Othman and Tan, Wei Sheng and Putra Jaya, Ramadhansyah and Mohd Mustafa Al Bakri, Abdullah (2021) Properties of mortar with waste tyre rubber as partial sand replacement. Key Engineering Materials, 879. pp. 49-61. ISSN 1013-9826 (print); 1662-9795 (online). (Published) https://doi.org/10.4028/www.scientific.net/KEM.879.49 https://doi.org/10.4028/www.scientific.net/KEM.879.49
spellingShingle TH Building construction
Chong, Beng Wei
Rokiah, Othman
Tan, Wei Sheng
Putra Jaya, Ramadhansyah
Mohd Mustafa Al Bakri, Abdullah
Properties of mortar with waste tyre rubber as partial sand replacement
title Properties of mortar with waste tyre rubber as partial sand replacement
title_full Properties of mortar with waste tyre rubber as partial sand replacement
title_fullStr Properties of mortar with waste tyre rubber as partial sand replacement
title_full_unstemmed Properties of mortar with waste tyre rubber as partial sand replacement
title_short Properties of mortar with waste tyre rubber as partial sand replacement
title_sort properties of mortar with waste tyre rubber as partial sand replacement
topic TH Building construction
url http://umpir.ump.edu.my/id/eprint/30528/
http://umpir.ump.edu.my/id/eprint/30528/
http://umpir.ump.edu.my/id/eprint/30528/
http://umpir.ump.edu.my/id/eprint/30528/1/Properties%20of%20Mortar%20with%20Waste%20Tyre%20Rubber%20as%20Partial%20Sand.pdf