Building Maintenance Technology

Yuen, George C. S.; Son, Lee How

doi:10.1007/978-1-349-23150-8

Cited by 23 publications

(32 citation statements)

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“…Son and Yuen (1993) explained that the term "retain" means the defects that are prevented from developing by carrying out work in anticipation of failure, whilst the term "restore" means that minor defects are allowed to occur before they are corrected. This explanation highlights the two main types of maintenance, reactive maintenance, which is to "restore", and planned maintenance, which is to "retain" (Spedding, 1994).…”

Section: Bathroom Maintenancementioning

confidence: 42%

Maintenance cost implications of utilizing bathroom modules manufactured offsite

Pan

Gibb

Sellars

2008

Construction Management and Economics

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Though the benefits from using offsite technologies have been rehearsed, their uptake within the UK construction industry is slow. A critical barrier is the lack of cost data of using such technology. Another is the unsubstantiated perception that maintenance of offsite solutions is difficult and expensive. But, yet again, there appears to be no data publicly available on this topic. This knowledge gap is addressed by presenting the cost data of maintaining offsite and insitu bathrooms for student accommodation. The records of 732 maintenance jobs were investigated. These jobs span three years for 398 bathrooms, including precast concrete modules, Glass Reinforced Polyester (GRP) modules and insitu bathrooms. The results suggest that GRP modules required the lowest maintenance costs whilst insitu bathrooms were significantly more expensive to maintain. For offsite modules, drainage, toilets, vents and sink were identified as the main problematic areas for maintenance. The maintenance of insitu bathrooms was more complex and involved a wider range of problematic areas. The design imposed significant effects on the long-term cost of offsite bathrooms. Aspirations of clients need to be fully understood and integrated into design. The findings should facilitate the design decision-making of using offsite bathrooms for residential buildings.

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Section: Bathroom Maintenancementioning

confidence: 42%

Maintenance cost implications of utilizing bathroom modules manufactured offsite

Pan

Gibb

Sellars

2008

Construction Management and Economics

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“…Salt crystallisation, and efflorescence "bloom" 382 SS 29,5 building that has a high degree of shelter due to trees to require additional maintenance interventions associated with cleaning leaves from gutters and drains. These minor interventions, if neglected, can play a significant role in more damaging defects such as penetrating damp and an inability of the building to readily dehydrate (Thomas et al, 1992).…”

mentioning

confidence: 43%

A framework for specifying natural hydraulic lime mortars for masonry construction

Förster

Carter

2011

Structural Survey

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Purpose -The selection of lime mortars for masonry structures can be an important component of a repair or new build project. This selection is considered difficult due to the number of variables to consider during the decision-making process and the perceived inherent complexity of the materials. The purpose of this paper is to discuss the selection process for determining suitable natural hydraulic lime repair mortars for masonry. Design/methodology/approach -The paper presents a conceptual and practical framework for the determination of suitable lime mortars for repair and construction of masonry structures, drawing and building on relevant, literature and existing best practice guidance on specification.Findings -The use of various relatively newly produced data sets pertaining to durability can aid in the appropriate selection of lime mortars. These determinants must however, be correlated with traditional evaluation of exposure levels, building detailing and moisture handling performance. Building condition survey of the existing fabric is essential to enable refinement of the selection process of these mortars. The adjustment of the initially identified mortars highlighted in the best practice guide may potentially benefit from modification based on the aforementioned factors. Originality/value -Whilst data exist to help the practitioner select hydraulic lime mortars they have never been correlated with the tacit and expressed protocols for survey and the evaluation of the performance of structures. IntroductionThis paper discusses the selection process for determining suitable natural hydraulic lime (NHL) repair mortars for masonry. This selection must be based upon a multifaceted approach that combines building surveying, a detailed understanding of the materials and the science of meteorology and exposure levels. Whilst this work focuses on repairs for existing buildings, the majority of the procedures are suitable for new build applications. The determination of a suitable repair mortar requires the following:

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“…For example, unwashed sea sand, type of cement and condition of steel bars are, in general, among the causes of damp occurrence (Bennett, 2007;Bertolini, 2013;Popescu et al, 2005;Rekela, 2004;Shabha, 2003;Sharon, 2012;Someville, 2008). Additionally, employing unskilled builders or picking any builders from the hiring market is the dominant element in workforce practices (Everett, 1994;Hendry, 1998;Hendry;Neville & Brooks, 1993;Sinha & Davies, 1997;Son & Yuen, 1993). The design of exterior wall and roof, leakage from water tanks on the roof and type of exterior finishing are also highlighted (Allen, 1997;Son &Yuen, 1993;Straube, 2002;Tait et al, 2001;Talib et al, 2015;Wekesa et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Specific factors identified by Talib, Ahmad, Sulieman and Boyd (2015) in a study of flat roofs in Malaysian heritage buildings included cracking due to weather, building movement due to the foundations, and leakage from water tanks. Son and Yuen (1993) also highlighted that poor foundation design can cause differential movement within the structure or differential settlement if the loads are too high.…”

Section: Construction Designmentioning

confidence: 99%

“…Ng et al (2011), who conducted an empirical study in Hong Kong among residents of public housing properties built before and after the implementation of the ISO9000-based quality management system, stated that the defects of a particular building are good indicators of the quality of the construction. Son and Yuen (1993) also pointed out that faulty design, poor workmanship, adverse environmental conditions and poor raw materials can be responsible to varying degrees for the occurrence of building defects. Additionally, Forty (2012) noted that concrete has the potential to last a long time unless it is subjected to poor quality of materials, workmanship and others.…”

Section: Introductionmentioning

confidence: 99%

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An AHP damp penetration model for concrete houses: Green Mountain, Libya

Laeirj¹

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The Green Mountain region of Libya experiences a persistent housing problem with regard to damp, regardless of the quality of the design, materials used, the construction practice and policy. This investigation into the factors influencing the performance of concrete housing to combat penetrating damp identified a broad range of factors: technical, managerial, economic, socio-cultural design and climatic issues. Consideration was given to specific national factors impacting on housing design and construction such as housing policy. The applicability of factors was confirmed by primary data collected from a householder questionnaire and a photographic observation survey of the condition of damp houses. Primary data were combined with secondary data in order to develop a more complete picture of the phenomenon under investigation. The analytical hierarchy process (AHP) technique was applied to construct an evaluation hierarchy of factors affecting the performance of houses in a Albeida city in North Eastern Libya. Factors were weighted and evaluated through interviews of construction professionals and self-build house owners. Results were integrated using the mathematical technique of AHP and a model of the most significant factors proposed. While the technique has been widely applied in various construction disciplines as a multiple criteria decision making technique, this study is the first to apply the technique as an analytical tool for understanding in depth a specific problem of construction and housing rather than for deciding a course of action. The results show that the issue mainly affects middle income and poor householders. Construction and socioeconomic design factors are the major causes of the presence of penetrating damp, together with the financial constraints of the owners. Surprisingly, management and climatic factors have less impact on the occurrence of damp. The model was subsequently validated in a sample of houses suffering from penetrating damp in Massa. This indicated that caution should be exercised regarding the application of AHP to the owners' judgments and the transferability of results. Whilst the findings of this research can assist decision makers in similar situations to identify appropriate assessment criteria for the construction of future housing projects, further investigation into the applicability of AHP in comparison with other methods is recommended. IV Acknowledgements I am most grateful to Allah Almighty for providing me with the patience and making it possible to produce this piece of work. I am also thankful to many people for their help and assistance, both directly and indirectly.

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Building Maintenance Technology

Abstract: Any person who does any unauthorised act in relation to this publication may be liable to criminal prosecution and civil claims for damages.

Cited by 23 publications

References 0 publications

Maintenance cost implications of utilizing bathroom modules manufactured offsite

Maintenance cost implications of utilizing bathroom modules manufactured offsite

A framework for specifying natural hydraulic lime mortars for masonry construction

An AHP damp penetration model for concrete houses: Green Mountain, Libya

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