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Rwamamara, Romuald
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Publications (10 of 20) Show all publications
Rwamamara, R. & Simonsson, P. (2012). Self-compacting concrete use for construction work environment sustainability (ed.). Paper presented at . Journal of Civil Engineering and Management, 18(5), 724-734
Open this publication in new window or tab >>Self-compacting concrete use for construction work environment sustainability
2012 (English)In: Journal of Civil Engineering and Management, ISSN 1392-3730, E-ISSN 1822-3605, Vol. 18, no 5, p. 724-734Article in journal (Refereed) Published
Abstract [en]

Many of those working on construction sites are exposed to demanding work loads; construction workers lift and carry heavy materials and work in awkward postures. Occupational injuries and accidents due to poor ergonomics are more common in the construction industry and many times lead to human tragedies, disrupt construction processes and adversely affect the cost, productivity, and the reputation of the construction industry. In Sweden, it is reported that concrete workers have the highest relative work-related musculoskeletal injury frequency. Therefore, the use of ergonomic production methods to prevent this can have a significant human, social and financial impact. Research introduced here presents a case study of comparative analyses of ergonomic situations for concrete workers performing concrete casting processes. Three different ergonomic risk assessment methods were used to assess the physical strain, hand-arm vibration and noise affects risks involved in concrete casting work tasks. The combination of technical and managerial factors results in a system where workers are as efficient and safe as possible during their work tasks, and thus, makes the construction work environment sustainable.The aim of our research is to find practical methods to evaluate and compare two different concrete casting methods from an ergonomic perspective. The focus is on the production of cast-in-place concrete bridge constructions where the traditional concrete casting method is compared with the SCC (Self-Compacting concrete) casting method. To be able to identify work-related musculoskeletal injury risks due to concrete casting work tasks, QEC (Quick Exposure Check for musculoskeletal risks), PLIBEL (Checklist for identification for Ergonomics Hazards) and ErgoSAM (Ergonomic production technology method) methods were used. Ergonomic risks analysis methods QEC, PLIBEL and ErgoSAM have all shown capabilities to evaluate construction work activities and thus determine whether a construction work activity constitutes a musculoskeletal risk to the worker or not before any ergonomic intervention is introduced.As a result the present ergonomic risks emanating from work methods used in the traditional concrete placing can be significantly reduced with the use of self-compacting concrete (SCC) that eliminates awkward work postures, noise and hand arm vibration, thereby reducing if not eliminating musculoskeletal injuries among concrete workers during their concrete casting work tasks.

National Category
Construction Management Infrastructure Engineering
Research subject
Construction Engineering and Management; Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-11021 (URN)10.3846/13923730.2012.723399 (DOI)000309445300011 ()2-s2.0-84867470571 (Scopus ID)9e9e49b5-7f8b-4e2a-92c7-e04cb64cb1b8 (Local ID)9e9e49b5-7f8b-4e2a-92c7-e04cb64cb1b8 (Archive number)9e9e49b5-7f8b-4e2a-92c7-e04cb64cb1b8 (OAI)
Note
Validerad; 2012; 20121023 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Rwamamara, R., Simonsson, P. & Ojanen, J. (2010). Advantages of industrialized methods used in small bridge construction (ed.). In: (Ed.), Ken Walsh; Thais Alves (Ed.), Proceedings of IGLC-18: 18th Conference of the International Group for Lean Construction. Paper presented at Annual Conference of the International Group for Lean Construction : 14/07/2010 - 16/07/2010 (pp. 569-579). Haifa: Technion-Israel Institute of Technology
Open this publication in new window or tab >>Advantages of industrialized methods used in small bridge construction
2010 (English)In: Proceedings of IGLC-18: 18th Conference of the International Group for Lean Construction / [ed] Ken Walsh; Thais Alves, Haifa: Technion-Israel Institute of Technology , 2010, p. 569-579Conference paper, Published paper (Refereed)
Abstract [en]

Evaluating to what extent industrialized production methods used during the steel reinforcement, formwork and concrete casting of small bridges are beneficial to the construction industry. The study evaluates the economical value of the construction of small bridges in terms of design and constructability from a production point of view. Moreover, the health and safety issues of the production processes are considered. The study method used is the internal documents study involved in the construction of the bridges. A comparison between data collected for previous studies on bridge construction projects and data collected from internal company documents will be performed. The study uses an economic analysis to evaluate alternative construction materials, assemblies, and bridge services with the objective to improve project planners or owners' decision making during the course of planning, designing and constructing a bridge. The use of bridge economic analysis to determine the most economically efficient choice among bridge design alternatives when it comes to steel reinforcement, formwork and concrete casting in regard to improved quality and working environment. The study discusses and offers recommendations for a cost effective bridge construction process which reduces waste in the production process and keeps the project schedule.

Place, publisher, year, edition, pages
Haifa: Technion-Israel Institute of Technology, 2010
National Category
Infrastructure Engineering Construction Management
Research subject
Structural Engineering; Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-30008 (URN)3abf36f0-ca3d-11df-a707-000ea68e967b (Local ID)978-965-555-495-3 (ISBN)3abf36f0-ca3d-11df-a707-000ea68e967b (Archive number)3abf36f0-ca3d-11df-a707-000ea68e967b (OAI)
Conference
Annual Conference of the International Group for Lean Construction : 14/07/2010 - 16/07/2010
Note
Godkänd; 2010; 20100927 (ojajoh)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Rwamamara, R., Lagerqvist, O., Olofsson, T., Johansson, B. & Kaminskas, K. A. (2010). Evidence-based prevention of work-related musculoskeletal injuries in construction industry (ed.). Journal of Civil Engineering and Management, 16(4), 499-509
Open this publication in new window or tab >>Evidence-based prevention of work-related musculoskeletal injuries in construction industry
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2010 (English)In: Journal of Civil Engineering and Management, ISSN 1392-3730, E-ISSN 1822-3605, Vol. 16, no 4, p. 499-509Article in journal (Refereed) Published
Abstract [en]

Many construction work tasks are physically very strenuous and the incidence of work‐related musculoskeletal disorders (WMSDs) among construction workers is considerably higher than those in most other occupations. The aim of the study presented in this paper was to contribute to understanding a healthy construction site brought about by the best practices implemented by large construction sites to prevent WMSDs. A triangulation method made of interviews, site observations and studies on company's documents was used to identify the best practices in 13 several construction projects. A range of the best practices both in the pre‐construction and construction phases of the projects were identified in six different areas of the balance of the construction workplace system; however, there seems to be a significant need for good practices in the management of a systematic work environment. It is now established that Swedish construction industry has several best practices to protect work‐related musculoskeletal health. However, inadequate worker participation and the neglect of health and safety issues by designers in the planning process as well as the implications of some remuneration methods on the production schedule were perceived as detrimental to the musculoskeletal health of construction workers.

National Category
Construction Management Production Engineering, Human Work Science and Ergonomics
Research subject
Construction Engineering and Management; Industrial Work Environment
Identifiers
urn:nbn:se:ltu:diva-10138 (URN)10.3846/jcem.2010.56 (DOI)000285648200006 ()2-s2.0-78651410785 (Scopus ID)8e2e2bc0-0755-11e0-b767-000ea68e967b (Local ID)8e2e2bc0-0755-11e0-b767-000ea68e967b (Archive number)8e2e2bc0-0755-11e0-b767-000ea68e967b (OAI)
Note

Validerad; 2010; 20101214 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2019-05-06Bibliographically approved
Rwamamara, R., Lagerqvist, O., Olofsson, T., Johansson, B. & Kaminskas, K. A. (2010). Prevention of work-related musculoskeletal injuries in construction industry (ed.). In: (Ed.), E.K. Zavadskas; P. Vainiunas (Ed.), 10th International Conference on Modern Building Materials, Structures and Techniques: Vilnius, Lithuania 19 - 21 May 2010. Paper presented at International Scientific Conference on Modern Building Materials, Structures and Techniques : 19/05/2010 - 21/05/2010 (pp. 1292-1296). Vilnius
Open this publication in new window or tab >>Prevention of work-related musculoskeletal injuries in construction industry
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2010 (English)In: 10th International Conference on Modern Building Materials, Structures and Techniques: Vilnius, Lithuania 19 - 21 May 2010 / [ed] E.K. Zavadskas; P. Vainiunas, Vilnius, 2010, p. 1292-1296Conference paper, Published paper (Refereed)
Abstract [en]

Many construction work tasks are physically very strenuous, and the incidence of work-related musculoskeletal disorders (WMSDs) among construction workers is considerably higher than that in most other occupations. The aim of the research project presented in this paper was to contribute to an understanding of a healthy construction workplace brought about by the best practices implemented by large construction sites. From a preventive perspective, a model for the construction workplace system balance was used to identify the successful strategies. To identify the successful strategies in the Swedish industry to prevent WMSDs, several construction projects were investigated through interviews, site observations and company's documents study. In every construction project, six areas, (i.e., planning, technology used, work organisation, physical work environment, work tasks and the individual worker) of the construction workplace system balance were investigated. Numerous successful strategies both in pre-production and production phases of construction projects were identified in the six different areas of the construction workplace system balance; however there seems to be a significant need for good practices in the systematic work environment management. Further, the implications of some remuneration methods on the production schedule were perceived as detrimental to musculoskeletal health of construction workers.

Place, publisher, year, edition, pages
Vilnius: , 2010
National Category
Construction Management Production Engineering, Human Work Science and Ergonomics
Research subject
Construction Engineering and Management; Human Work Science
Identifiers
urn:nbn:se:ltu:diva-35531 (URN)a17cbfb4-70ea-4b23-b0a4-3c52881f400f (Local ID)9789955285946 (ISBN)a17cbfb4-70ea-4b23-b0a4-3c52881f400f (Archive number)a17cbfb4-70ea-4b23-b0a4-3c52881f400f (OAI)
Conference
International Scientific Conference on Modern Building Materials, Structures and Techniques : 19/05/2010 - 21/05/2010
Note
Godkänd; 2010; 20141119 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Rwamamara, R., Norberg, H., Olofsson, T. & Lagerqvist, O. (2010). Using visualisation technologies for design and planning of a healthy construction workplace (ed.). Paper presented at . Construction Innovation, 10(3), 248-266
Open this publication in new window or tab >>Using visualisation technologies for design and planning of a healthy construction workplace
2010 (English)In: Construction Innovation, ISSN 1471-4175, E-ISSN 1477-0857, Vol. 10, no 3, p. 248-266Article in journal (Refereed) Published
Abstract [en]

Purpose – The purpose of the paper is to investigate how health and safety gains and improvements of the construction workplace can be made through the use of three-dimensional (3D) and four-dimensional (4D) visualization technologies. Design/methodology/approach – The methodology used in the paper was a combination of semi-structured interviews with five construction project planners from three construction projects and observations of a 4D model used in one of the three projects. Findings – The findings of the paper have shown a great potential for 3D and 4D visualization in terms of communicating construction information as well as the health and safety risks in the design process where clash detection, work tasks sequence, workspace congestion can be identified by project stakeholders who are thus able to plan for alternative solutions to reduce or eliminate rework, heavy material handling and repetitive and awkward postures which expose workers to musculoskeletal injury risk. Research limitations/implications – The 3D and 4D models as they are currently used in the design of construction projects, particularly in the three projects investigated in this paper, still lack the worker reference frame and the visual interaction between the worker and the permanent as well as the temporary works. Originality/value – The paper describes the current and emerging trends in the development of 3D, virtual reality and 4D computer-aided design visualization and simulation, which have affected or are likely to have an impact on construction projects planning in the Swedish construction sector.

National Category
Construction Management
Research subject
Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-3820 (URN)10.1108/14714171011060060 (DOI)2-s2.0-84986173210 (Scopus ID)1aa9ea90-a8c1-11dc-9057-000ea68e967b (Local ID)1aa9ea90-a8c1-11dc-9057-000ea68e967b (Archive number)1aa9ea90-a8c1-11dc-9057-000ea68e967b (OAI)
Note
Validerad; 2010; 20071212 (rorw)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Simonsson, P. & Rwamamara, R. (2009). Ergonomic exposures from the usage of conventional and self compacting concrete (ed.). In: (Ed.), E. Hirota; Y. Cuperus (Ed.), Proceedings IGLC 17: 17th Annual Conference of the International Group for Lean Construction. Paper presented at Annual Conference of the International Group for Lean Construction : 13/07/2009 - 19/07/2009 (pp. 313-322).
Open this publication in new window or tab >>Ergonomic exposures from the usage of conventional and self compacting concrete
2009 (English)In: Proceedings IGLC 17: 17th Annual Conference of the International Group for Lean Construction / [ed] E. Hirota; Y. Cuperus, 2009, p. 313-322Conference paper, Published paper (Refereed)
Abstract [en]

The use of ergonomic production methods in concrete casting does have a significant human, social and financial impact in terms of the reduction of occupational injuries and related injury compensations. This paper presents a case study of comparative analyses of the ergonomic situations for concrete workers casting with two different types of concrete, namely the conventional concrete and the self-compacting concrete (SCC). Analyses were conducted with two methods for the identification of ergonomic hazards; and in comparison to conventional concrete, the analysis results have shown that SCC consistently gave significant improvements in work postures and led to less workload and noise exposure among concrete workers. The combination of lean thinking and ergonomics result in a system where  the worker is as efficient, safe, and comfortable as possible during the concrete casting work process. Material handling plays a significant role in lean construction by keeping the worker at the center and ameliorating many of the ergonomic problems that would otherwise remove the person from the production process. Transportation and unnecessary motion are two of the seven types of wastes that can be significantly reduced with the implementation of an ergonomic production system such as SCC that eliminates awkward work postures and vibrating tools. With the correct ergonomic material/product used in production of concrete structures, waste can be removed from the production system, thus creating an increase in production, decreased costs, an increase in quality of the product and less absence of workers in the future due to less stressful work.

National Category
Construction Management Infrastructure Engineering
Research subject
Construction Engineering and Management; Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-34566 (URN)8ca0cf20-add2-11de-8293-000ea68e967b (Local ID)8ca0cf20-add2-11de-8293-000ea68e967b (Archive number)8ca0cf20-add2-11de-8293-000ea68e967b (OAI)
Conference
Annual Conference of the International Group for Lean Construction : 13/07/2009 - 19/07/2009
Note
Godkänd; 2009; 20090930 (rorw)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Rwamamara, R. A. & Smallwood, J. J. (2009). Ergonomics in construction, specifically in industrially developing countries (ed.). In: (Ed.), Patricia A. Scott (Ed.), Ergonomics in Developing Regions: Needs and Applications (pp. 307-322). Paper presented at . Boca Raton: CRC Press, Taylor & Francis Group
Open this publication in new window or tab >>Ergonomics in construction, specifically in industrially developing countries
2009 (English)In: Ergonomics in Developing Regions: Needs and Applications, Boca Raton: CRC Press, Taylor & Francis Group , 2009, p. 307-322Chapter in book (Other academic)
Place, publisher, year, edition, pages
Boca Raton: CRC Press, Taylor & Francis Group, 2009
National Category
Construction Management
Research subject
Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-21119 (URN)b624b330-acff-11de-8293-000ea68e967b (Local ID)978-1-4200-7911-1 (ISBN)b624b330-acff-11de-8293-000ea68e967b (Archive number)b624b330-acff-11de-8293-000ea68e967b (OAI)
Note
Godkänd; 2009; 20090929 (rorw)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Rwamamara, R. (2009). Evaluating concrete casting tasks through ergonomic risk assessment methods (ed.). In: (Ed.), (Ed.), 17th World Congress on Ergonomics: IEA 2009 ; Beijing, August 9 - 14, 2009. Paper presented at World Congress on Ergonomics : 09/08/2009 - 14/08/2009. Bejing: Chinese Ergonomics Society
Open this publication in new window or tab >>Evaluating concrete casting tasks through ergonomic risk assessment methods
2009 (English)In: 17th World Congress on Ergonomics: IEA 2009 ; Beijing, August 9 - 14, 2009, Bejing: Chinese Ergonomics Society , 2009Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Bejing: Chinese Ergonomics Society, 2009
National Category
Construction Management
Research subject
Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-40509 (URN)fabf3300-add4-11de-8293-000ea68e967b (Local ID)fabf3300-add4-11de-8293-000ea68e967b (Archive number)fabf3300-add4-11de-8293-000ea68e967b (OAI)
Conference
World Congress on Ergonomics : 09/08/2009 - 14/08/2009
Note
Godkänd; 2009; Bibliografisk uppgift: 1 CD-ROM; 20090930 (rorw)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved
Rwamamara, R. & Simonsson, P. (2009). Fitting steel reinforcement production methods to workers safety (ed.). Paper presented at International Symposium of the ISSA on Prevention in the Construction Industry : 23/11/2009 - 25/11/2009. Paper presented at International Symposium of the ISSA on Prevention in the Construction Industry : 23/11/2009 - 25/11/2009.
Open this publication in new window or tab >>Fitting steel reinforcement production methods to workers safety
2009 (English)Conference paper, Poster (with or without abstract) (Other academic)
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-28175 (URN)1e156d60-e980-11de-bae5-000ea68e967b (Local ID)1e156d60-e980-11de-bae5-000ea68e967b (Archive number)1e156d60-e980-11de-bae5-000ea68e967b (OAI)
Conference
International Symposium of the ISSA on Prevention in the Construction Industry : 23/11/2009 - 25/11/2009
Note
Godkänd; 2009; 20091215 (rorw)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Rwamamara, R. & Simonsson, P. (2009). Health and safety in concrete casting processes (ed.). In: (Ed.), Andrew Dainty (Ed.), Twenty-Fifth Annual Conference, 2009, September 7-9, Albert Hall, Nottingham: . Paper presented at Annual ARCOM Conference : 07/09/2009 - 09/09/2009 (pp. 1253-1262). Reading: Association of Researchers in Construction Management, 2
Open this publication in new window or tab >>Health and safety in concrete casting processes
2009 (English)In: Twenty-Fifth Annual Conference, 2009, September 7-9, Albert Hall, Nottingham / [ed] Andrew Dainty, Reading: Association of Researchers in Construction Management , 2009, Vol. 2, p. 1253-1262Conference paper, Published paper (Refereed)
Abstract [en]

Construction injuries lead to human tragedies, disrupt construction processes and adversely affect the cost, productivity, and the reputation of the construction industry. Therefore, the use of ergonomic production methods to prevent this can have a significant human, social and financial impact. This paper presents a case study of comparative analyses of ergonomic situations for concrete workers performing concrete casting processes. Ergonomic risk assessment methods were used to assess the physical strain, hand-arm vibration and noise affects risks involved in concrete casting work tasks. The combination of technical and managerial factors results in a system where workers are as efficient and safe as possible during their work tasks, and thus, makes the construction work environment sustainable. The preliminary study presented in this paper concludes that the present ergonomic risks emanating from work methods used in the normally vibrated concrete (NVC) casting can be significantly reduced. With the use of self-compacting concrete (SCC) awkward work postures, hand-arm vibration and noise are eliminated. Thus musculoskeletal injuries can be reduced if not eliminated among concrete workers during their concrete casting work tasks.

Place, publisher, year, edition, pages
Reading: Association of Researchers in Construction Management, 2009
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
urn:nbn:se:ltu:diva-34119 (URN)83aa4ed0-ad02-11de-8293-000ea68e967b (Local ID)0-9552390-1-X (ISBN)978-0-9552390-1-4 (ISBN)83aa4ed0-ad02-11de-8293-000ea68e967b (Archive number)83aa4ed0-ad02-11de-8293-000ea68e967b (OAI)
Conference
Annual ARCOM Conference : 07/09/2009 - 09/09/2009
Note
Godkänd; 2009; 20090929 (rorw)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
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