Mortar consumption characteristics of 'brickwork' and a framework for managing brick and mortar walls in chaotic environments

Article


Abeysekera, Vasantha. 2012. "Mortar consumption characteristics of 'brickwork' and a framework for managing brick and mortar walls in chaotic environments." Engineer: Journal of the Institution of Engineers, Sri Lanka. 45 (2), pp. 49-64.
Article Title

Mortar consumption characteristics of 'brickwork' and a framework for managing brick and mortar walls in chaotic environments

ERA Journal ID123182
Article CategoryArticle
Authors
AuthorAbeysekera, Vasantha
Journal TitleEngineer: Journal of the Institution of Engineers, Sri Lanka
Journal Citation45 (2), pp. 49-64
Number of Pages16
Year2012
Place of PublicationSri Lanka
ISSN1800-1122
Web Address (URL)http://www.iesl.lk/Engineers%20Journal/April%202012/Paper%206.pdf
Abstract

This study investigated how bricks and mortar could be used in a chaotic environment where brick and joints sizes could be varied to achieve better outcomes (such as cost minimisation) through an understanding of mortar consumption characteristics of brickwork. This was made possible by integrating three innovative concepts, viz. 'type' of wall, 'cost polarity', and 'bricks to mortar' ratio.
New formulae for computing mortar volumes had to be developed as the simple formula of subtracting the volume of bricks from the volume of wall that did not produce accurate mortar volumes. Having validated these formulae, mortar volumes in different joints were computed. Accordingly, it was found that the bed-joint accounted for the largest portion of mortar in single brick thick walls in English bond, irrespective of the size of brick used. With more than two thirds of the total volume of mortar in the bed joint (even with a smaller bed joint of 10mm), it plays a significant role in changing the volume of mortar in brickwork.
As the volume of mortar in the study walls was as high as 73% when compared with (less than) 25% for walls with standard brick and joint sizes, the very notion of what 'brick-work' was challenged. This led to the identification of three 'types' of walls, namely, 'mortar-wall' (with volume of mortar over 50%), 'brick-mortar wall' (with volumes of mortar between 25-50%), and 'brick-wall' (with a volume less than 25%) with corresponding 'bricks to mortar' ratios of less than 1, 1 to 3, and greater than 3. This classification was used for specifying a 'type' of wall.
It was found that 'brick to mortar' ratio was quite sensitive to variations in small values of the bed joint when large bricks were used though this was not the case with smaller bricks and larger bed joints. This suggests the importance of controlling workmanship if the ratio is to be maintained at small values of bed joint. A strategy-map for selecting a desirable 'bricks to mortar ratio' was provided based on 'type' of wall, brick and joint sizes, and degree of control required for ensuring workmanship.
In order to make strategic decisions on costs, the concept of 'cost polarity' (cost of density of bricks to mortar) was used. Accordingly, a cost-efficient 'type' of wall could be selected based on whether cost polarity was less than 1 or greater using a strategy-map for such decision making. Further savings in costs could be achieved by using the strategy-map for 'brick to mortar' ratios whilst giving consideration to the build ability of the bed joint, and sizes of other joints including joint fullness.
The framework thus proposed provides a fresh perspective on how walls built with bricks and mortar could be managed (particularly in Sri Lanka) with potential for enormous cost savings using a chaotic environment to bring a new order.

Keywordsbrick size; brickwork; bed joint; chaos; cost polarity; chapparu; mortar
ANZSRC Field of Research 2020400505. Construction materials
330202. Building construction management and project planning
490109. Theoretical and applied mechanics
Public Notes

c. The Institution of Engineers, Sri Lanka.

Byline AffiliationsFaculty of Engineering and Surveying
Institution of OriginUniversity of Southern Queensland
Permalink -

https://research.usq.edu.au/item/q1542/mortar-consumption-characteristics-of-brickwork-and-a-framework-for-managing-brick-and-mortar-walls-in-chaotic-environments

  • 2083
    total views
  • 20
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Export as

Related outputs

A Methodology for Establishing the Relevance of the RGR Model to Construction
Shelke, Mayur and Abeysekera, Vasantha. 2019. "A Methodology for Establishing the Relevance of the RGR Model to Construction." Ahmed, Syed M., Hampton, Paul, Saul, Amelia D, Azhar, Salman, Smith, Norma A., Campbell, Shaunna C. and Mahaffy, Kelly L. (ed.) CITC Global Construction in the 21st Century 11th International Conference (CITC-11). London, United Kingdom 09 - 11 Sep 2019 United Kingdom. https://doi.org/10.1007/978-3-030-48465-1_108
Reviewing and Refining the RGR Model for Quality Management: A Generic Blueprint
Abeysekera, Vasantha and Shelke, Mayur. 2019. "Reviewing and Refining the RGR Model for Quality Management: A Generic Blueprint." Ahmed, Syed M., Hampton, Paul, Saul, Amelia D., Azhar, Salman, Smith, Norma A., Campbell, Shaunna C. and Mahaffy, Kelly L. (ed.) CITC Global Construction in the 21st Century 11th International Conference (CITC-11). London, United Kingdom 09 - 11 Sep 2019 United Kingdom. https://doi.org/10.1007/978-3-030-48465-1_107
The journey of exploring ‘construction as biological cells’ for improving construction quality: articulating the research paradigm
Abeysekera, Vasantha and Shelke, Mayur. 2018. "The journey of exploring ‘construction as biological cells’ for improving construction quality: articulating the research paradigm." Ahmed, Syed M., Shah, Attaullah, Azhar, Salman, Smith, Norma A., Campbell, Shauna, Mahaffy, Kelly and Saul, Amelia (ed.) 10th International Conference on Construction in the 21st Century (CITC-10) . Colombo, Sri Lanka 02 - 04 Jul 2018 Greenville, North Carolina, USA.
Biological cell surveillance: implication on construction cell
Shelke, Mayur and Abeysekera, Vasantha. 2018. "Biological cell surveillance: implication on construction cell ." Ahmed, Syed M., Shah, Attaullah, Azhar, Salman, Smith, Norma A., Campbell, Shauna, Mahaffy, Kelly and Saul, Amelia (ed.) 10th International Conference on Construction in the 21st Century (CITC-10) . Colombo, Sri Lanka 02 - 04 Jul 2018 Greenville, North Carolina, USA.
Biological cell theory based interventions and the impact on quality: the case of a tower project
Shelke, Mayur and Abeysekera, Vasantha. 2017. "Biological cell theory based interventions and the impact on quality: the case of a tower project ." Ahmed, Syed M., Azhar , Salman, Smith, Norma A., Campbell, Shaunna C., Russell , Laura and Shah, Attaullah (ed.) 9th International Conference on Construction in the 21st Century (CITC-9) . Dubai, United Arab Emirates 05 - 07 Mar 2017 Greenville, North Carolina, USA.
Understanding the relevance of biological cell control theory and cell control mechanism for solving quality problems in a tunnel construction project
Shelke, Mayur and Abeysekera, Vasantha. 2017. "Understanding the relevance of biological cell control theory and cell control mechanism for solving quality problems in a tunnel construction project ." Ahmed, Syed M., Azhar , Salman, Smith, Norma A., Campbell, Shaunna C., Russell , Laura and Shah, Attaullah (ed.) 9th International Conference on Construction in the 21st Century (CITC-9) . Dubai, United Arab Emirates 05 - 07 Mar 2017 Greenville, North Carolina, USA.
A trade-based risk management approach towards the elimination of defects in residential construction
Abeysekera, Vasantha and Dhakal, Bibek. 2017. "A trade-based risk management approach towards the elimination of defects in residential construction ." Ahmed, Syed M., Azhar , Salman, Smith, Norma A., Campbell, Shaunna C., Russell , Laura and Shah, Attaullah (ed.) 9th International Conference on Construction in the 21st Century (CITC-9) . Dubai, United Arab Emirates 05 - 07 Mar 2017 Greenville, North Carolina, USA.
Personalised study time plans, and study time management: a joint responsibility of staff, students, and university administrators
Abeysekera, Vasantha and Abeysekera, Ashoka. 2017. "Personalised study time plans, and study time management: a joint responsibility of staff, students, and university administrators ." Ahmed , Syed M., Azhar , Salman, Smith, Norma A., Campbell, Shaunna C., Russell , Laura and Shah, Attaullah (ed.) 9th International Conference on Construction in the 21st Century (CITC-9) . Dubai, United Arab Emirates 05 - 07 Mar 2017 Greenville, North Carolina, USA .
Construction as biological cells: an exploratory study
Abeysekera, Vasantha and Shelke, Mayur. 2018. "Construction as biological cells: an exploratory study." The International Journal of Construction Management. 18 (4), pp. 276-292. https://doi.org/10.1080/15623599.2017.1358132
Construction as biological cells: can construction cells be similar to biological cells?
Abeysekera, Vasantha and Shelke, Mayur G.. 2015. "Construction as biological cells: can construction cells be similar to biological cells?" Ahmed, Syed M., Xenidis, Yiannis, Azhar, Salman, Smith, Norma A., Yaris, Cat E. and Campbell, Shaunna (ed.) 8th International Conference on Construction in the 21st Century (CITC-8). Thessaloniki, Greece 27 - 30 May 2015 Greenville, North Caroina, USA.
Construction as biological cells: implications of the biological cell cycle for managing construction
Abeysekera, Vasantha and Shelke, Mayur G.. 2015. "Construction as biological cells: implications of the biological cell cycle for managing construction ." Ahmed, Syed M., Xenidis, Yiannis, Azhar, Salman, Smith, Norma A., Yarris, Cat E. and Campbell, Shaunna (ed.) 8th International Conference on Construction in the 21st Century (CITC-8). Thessaloniki, Greece 27 - 30 May 2015 Geenville, North Carolina, USQ.
Wither monetary retentions for subcontract work? A theoretical framework for rationalising its use
Abeysekera, Vasantha. 2015. "Wither monetary retentions for subcontract work? A theoretical framework for rationalising its use ." Ahmed, Syed M., Xenidis, Yiannis, Azhar, Salman, Smith, Norma A., Yarris, Cat E. and Campbell, Shaunna (ed.) 8th International Conference on Construction in the 21st Century (CITC-8). Thessaloniki, Greece 27 - 30 May 2015 Greenville, North Carolina, USA.
Sowing the seeds of success: the provision of a personalised study time management plan
Abeysekera, Vasantha and Abeysekera, Ashoka. 2015. "Sowing the seeds of success: the provision of a personalised study time management plan ." Ahmed, Syed M., Xenidis, Yiannis, Azhar, Salman, Smith, Norma A., Yarris, Cat E. and Campbell, Shaunna (ed.) 8th International Conference on Construction in the 21st Century (CITC-8). Thessaloniki, Greece 27 - 30 May 2015 Greenville, North Carolina, USA.
Managing quality in construction: construction as biological cells
Abeysekera, Vasantha and Shelke, Mayur G.. 2013. "Managing quality in construction: construction as biological cells." Kajewski, Stephen, Manley, Karen and Hampson, Keith (ed.) 19th International CIB World Building Congress. Brisbane, Australia 05 - 09 May 2013 Brisbane, Australia.
A conceptual framework for client financed construction and non-traditional approaches for financing construction work
Abeysekera, Vasantha. 2012. "A conceptual framework for client financed construction and non-traditional approaches for financing construction work." World Construction Conference 2012: Global Challenges in Construction Industry. Colombo, Sri Lanka 28 - 30 Jun 2012 Colombo, Sri Lanka.
Motivating the construction academic: a conceptual study
Abeysekera, Ashoka and Abeysekera, Vasantha. 2012. "Motivating the construction academic: a conceptual study." World Construction Conference 2012: Global Challenges in Construction Industry. Colombo, Sri Lanka 28 - 30 Jun 2012 Colombo, Sri Lanka.
Monetary retentions for subcontract work: a risk-based approach
Abeysekera, Vasantha and Soysa, Mohantha. 2012. "Monetary retentions for subcontract work: a risk-based approach." World Construction Conference 2012: Global Challenges in Construction Industry. Colombo, Sri Lanka 28 - 30 Jun 2012 Colombo, Sri Lanka.
Resolving retention polarity: the perceptions of structural steel fabricators
Abeysekera, Vasantha. 2012. "Resolving retention polarity: the perceptions of structural steel fabricators." World Construction Conference 2012: Global Challenges in Construction Industry. Colombo, Sri Lanka 28 - 30 Jun 2012 Colombo, Sri Lanka.
Security of final account payments: the case of New Zealand
Choi, Daniel, Abeysekera, Vasantha and Ramachandra, Thanuja. 2010. "Security of final account payments: the case of New Zealand." Barrett, Peter, Amaratunga, Dilanthi, Haigh, Richard, Keraminiyage, Kaushal and Pathirage, Chaminda (ed.) CIB World Congress 2010: Building a Better World. Salford Quays, United Kingdom 10 - 13 May 2010 London, United Kingdom.
Output characteristics of 'Chapparu' brickwork
Abeysekera, Vasantha. 2010. "Output characteristics of 'Chapparu' brickwork." Engineer: Journal of the Institution of Engineers, Sri Lanka. 43 (4), pp. 57-74.
Revisiting terminology in construction project management
Kumaraswamy, M. and Abeysekera V.. 2008. "Revisiting terminology in construction project management." 4th International Structural Engineering and Construction Conference (ISEC 2007). Melbourne, Australia 26 - 28 Sep 2007