Prestress loss of post-tensioned clay diaphragm and fin brickwork

Unlike calcium silicate and concrete block masonry which undergo shrinkage with time, clay brickwork has been known to expand instead. Expansion of brick units in prestressed masonry will cause an increase in the prestressing force instead of prestress loss. However, not all clay brickwork expand wi...

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Main Author: Tapsir, Siti Hamisab
Format: Article
Language:English
Published: Faculty of Civil Engineering, Universiti Teknologi Malaysia 1994
Subjects:
Online Access:http://eprints.utm.my/27859/1/SitiHamisabTapsir1994_PrestressLossofPostTensionedClay.pdf
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author Tapsir, Siti Hamisab
author_facet Tapsir, Siti Hamisab
author_sort Tapsir, Siti Hamisab
collection ePrints
description Unlike calcium silicate and concrete block masonry which undergo shrinkage with time, clay brickwork has been known to expand instead. Expansion of brick units in prestressed masonry will cause an increase in the prestressing force instead of prestress loss. However, not all clay brickwork expand with time; higher strength clay units tend to undergo shrinkage with time. The main objective of this paper is to present experimental data obtained for prestress loss in post-tensioned high strength clay diaphragm and fin brickwork. The main objective of this paper is to present experimental data obtained for prestress loss in posttensioned high strength clay diaphragm and fin brickwork. The brickwork were built from clmisB clay engineering brick with compressive strength of 103 MPa with designation (ii) mortar. The tests which involve monitoring prestress loss, creep and shrinkage of clay sections were carried out over a period of 120 days. Usiog the 120-day experimental data, the predicted long-term prestress loss is 20%
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spelling utm.eprints-278592012-08-10T03:39:24Z http://eprints.utm.my/27859/ Prestress loss of post-tensioned clay diaphragm and fin brickwork Tapsir, Siti Hamisab TA Engineering (General). Civil engineering (General) Unlike calcium silicate and concrete block masonry which undergo shrinkage with time, clay brickwork has been known to expand instead. Expansion of brick units in prestressed masonry will cause an increase in the prestressing force instead of prestress loss. However, not all clay brickwork expand with time; higher strength clay units tend to undergo shrinkage with time. The main objective of this paper is to present experimental data obtained for prestress loss in post-tensioned high strength clay diaphragm and fin brickwork. The main objective of this paper is to present experimental data obtained for prestress loss in posttensioned high strength clay diaphragm and fin brickwork. The brickwork were built from clmisB clay engineering brick with compressive strength of 103 MPa with designation (ii) mortar. The tests which involve monitoring prestress loss, creep and shrinkage of clay sections were carried out over a period of 120 days. Usiog the 120-day experimental data, the predicted long-term prestress loss is 20% Faculty of Civil Engineering, Universiti Teknologi Malaysia 1994 Article PeerReviewed application/pdf en http://eprints.utm.my/27859/1/SitiHamisabTapsir1994_PrestressLossofPostTensionedClay.pdf Tapsir, Siti Hamisab (1994) Prestress loss of post-tensioned clay diaphragm and fin brickwork. Jurnal Kejuruteraan Awam, 7 (2). pp. 12-18. ISSN 0128-0147 http://www.civil.utm.my/content.php?id=387&cid=204&lang=1
spellingShingle TA Engineering (General). Civil engineering (General)
Tapsir, Siti Hamisab
Prestress loss of post-tensioned clay diaphragm and fin brickwork
title Prestress loss of post-tensioned clay diaphragm and fin brickwork
title_full Prestress loss of post-tensioned clay diaphragm and fin brickwork
title_fullStr Prestress loss of post-tensioned clay diaphragm and fin brickwork
title_full_unstemmed Prestress loss of post-tensioned clay diaphragm and fin brickwork
title_short Prestress loss of post-tensioned clay diaphragm and fin brickwork
title_sort prestress loss of post tensioned clay diaphragm and fin brickwork
topic TA Engineering (General). Civil engineering (General)
url http://eprints.utm.my/27859/1/SitiHamisabTapsir1994_PrestressLossofPostTensionedClay.pdf
work_keys_str_mv AT tapsirsitihamisab prestresslossofposttensionedclaydiaphragmandfinbrickwork