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A case study on requirements of quality workmanship in construction projects
Abstract
Construction building projects has complexity in its nature because it is related to many factors such as quality, safety and resources. Quality workmanship is a comprehensive approach to bolster the durability, serviceability and safety aspects of the construction. Workmanship with higher standards is a positive and humanistic approach to productive management designed to bring together all levels of workforce and experience in an organization for setting standards of excellence and achieving better outcomes. With the evolving competitive market scenario, quality workmanship prepares the employees and workmen to meet the challenges of the changing time and conditions. The purpose of this study is to check the effectiveness of the quality work in view of improving quality, safety & reduction in wastage of resources in a construction project. This study reviews the implementation of quality circle and analyses the perspective of workmen and employees regarding quality of workmanship in construction process. This paper reports a case study of a residential building constructions of located in India and analysing the extent of quality workmanship achieved. Improper compaction and honeycomb issues and handling of materials and safety measures are found to be degrading the effectiveness of workmanship involved. The defects are documented and the causes for that particular problem is analysed upon. This study provides suitable remedial measures for rectifying the defects occurred within the structure and acts as a tool in executing the corrections as soon as possible.
... Therefore, it is not always sufficient to have good design that reflects the strength requirement capacity while sufficient stiffness to ensure the serviceability (Tahsin and Md. Rahul, 2007), proper construction matters a lot because negligence is the vane of most structural defects occurring at construction sites (Thamilarasu et al., 2017). Statistics have reliability shown that about 90% of reported buildings failure incidence are closely related workmanship issues (Thamilarasu et al., 2017). ...
... Rahul, 2007), proper construction matters a lot because negligence is the vane of most structural defects occurring at construction sites (Thamilarasu et al., 2017). Statistics have reliability shown that about 90% of reported buildings failure incidence are closely related workmanship issues (Thamilarasu et al., 2017). ...
... From the previous research, there were a lot of factors that affected the quality of workmanship in building construction and some researchers stated that all of these factors can lead to building defects in the future. The quality of workmanship is very important, as stated by Thamilarasu, Rajprasad and Pavan (2017), where workmanship with higher standards is said to be a positive and humanistic approach to productive management that is designed to bring together all levels of the workforce and experience in an organization in the setting of standards of excellence and achieving better outcomes. ...
... The factors are summarized from the above crew groups like design and planning engineering crew, Quality crew, Safety crew, Fabrication crew , Labour crew ,Construction supervisor crew ,Engineering crew and top rankings from each group are as follows Techniques and activities, Preparing and assigning the resources, distribution of skill labour, shortage of labours ,Shifting methods ,insufficient lighting and financial issues. The top 10 ranked factors affecting multiple crew based productivity scheduling are as follows (1)shortage of labours, (2).Shifting methods, (3)financial issuses, (4)workmanship (5) insufficient lighting (6) distribution of skill labour (7) Skill of labour (8) weather conditions (9)Preparing and assigning the resources (10)length of working day. ...
The development construction assumes a critical part in any developing nation. Now a days time, cost and productivity of project had become primary concern of all the construction projects so in order to tackle the time, work and resource productivity in the scheduling works. There is most likely that development is a key movement inside any economy; it impacts, and is affected by, the country's (GDP).The objective to investigation and find out the RII to identify rank of factor to influence multiple crew based productivity scheduling for construction projects on Chennai. To achieve this objective, 30 productivity scheduling factors of multiple crew which are grouped as seven groups: a)design and planning engineer crew, b).engineering crew, a) construction supervisor crew, d) labour crew, e) fabrication crew, f) safety crew, g)quality crew and this are done by the questionnaire survey and representative by the statistical approach. The factors which effects on multiple crew based productivity scheduling are investigated and top 10 are the most critical factors which are given as follows: (1) Shortage of labours, (2) Shifting methods, (3)Financial issues, (4)Workmanship, (5) Insufficient lighting, (6)Distribution of skill labour, (7) Skill of labour, (8) Weather conditions, (9) Preparing and assigning the resources, (10) Length of working day. Despite the fact that the results of this investigation in factors affecting on multiple crew in the construction companies in Chennai to fill a gap of knowledge used by construction industry members to construct up a more deeper and wider viewpoint of the issues affecting the productivity of crew, and give direction to engineers, managers, experience persons of multiple crew force for effective utilization, consequently help with accomplishing a realistic level of effectiveness and financially effective activity.
The construction industry is one of the major aspects that support and has a significant impact on the global economy, but it is not growing as other global industries when it comes to client satisfaction issues. Nepal is, therefore, not an exception to this situation. This study examined how clients perceived local contractors’ performance in the construction of residential buildings in Pokhara, Nepal.
The main aim of this study was to analyse the degree to which clients were satisfied with the building projects that local contractors completed in Pokhara.
In this study, a questionnaire was created after consulting with
experts, consultants, literature review, questionnaires were provided to clients. Based on the relative importance index the collected data were statistically analysed to determine how satisfied clients were with local contractors’ performance.
The results indicated that clients considered local contractors’
performance in the construction of residential buildings fell short
of their expectations. The following aspects of the adopted groups caused the most dissatisfaction: the ability to contribute to project brief development, site supervisor, planning and scheduling jobs, minimizing waste, efforts made by the contractor to meet specifications, personal protective equipment, labour motivation and employee devotion to contractors’ aims, deep interest in the issues and considering them as essential requests, acceptance of the client’s claims and the ability to handle variances.
Finally, it was determined that the various parties needed to communicate with one another more effectively to create a better working atmosphere that increases levels of satisfaction for clients. Furthermore, common understanding and cooperation must prevail and the contractors must enhance their practices and procedures.
Quality of material issues have been a significant source of concern since the dawn of recorded history. Building materials are essential and should be performed according to standard specifications because they cover around 60% of the project cost. Prior to project construction, specific codes, standards, and specifications should be available. Using all required materials does not guarantee a sound building appearance or function. Even with suitable materials, workmanship, and supervision, unexpected output can affect a building. Quality workmanship is a comprehensive approach to bolstering building durability, serviceability, and safety. The study evaluated Ambo University's building construction materials and quality. Convenience and quota sampling techniques were collected from all contractors and consultants involved in building construction via questionnaires and interviews. A comprehensive literature review identified 15 major factors affecting building construction materials quality and workmanship, and respondents ranked them in the order of importance. Defects in existing buildings and ongoing projects had observed due to non-compliance with construction materials and workmanship based on specifications and standards. The results indicated that Ambo University building has no defect free structure, including the degree and type of defects vary. A 94% of the studied buildings had moisture leakage, plastering defects, paint peeling, and cracks. Hence, the consultants and Ambo University project representatives should adhere with the standard specifications, and must exercise their profession according to the ethical code of conduct. All of these, it will play a vital role in the success of construction projects.
Quality of material issues have been a significant source of concern since the dawn of recorded history. Building materials are essential and should be performed according to standard specifications because they cover around 60% of the project cost. Prior to project construction, specific codes, standards, and specifications should be available. Using all required materials does not guarantee a sound building appearance or function. Even with suitable materials, workmanship, and supervision, unexpected output can affect a building. Quality workmanship is a comprehensive approach to bolstering building durability, serviceability, and safety. The study evaluated Ambo University's building construction materials and quality. Convenience and quota sampling techniques were collected from all contractors and consultants involved in building construction via questionnaires and interviews. A comprehensive literature review identified 15 major factors affecting building construction materials quality and workmanship, and respondents ranked them in the order of importance. Defects in existing buildings and ongoing projects had observed due to non-compliance with construction materials and workmanship based on specifications and standards. The results indicated that Ambo University building has no defect-free structure, including the degree and type of defects vary. A 94% of the studied buildings had moisture leakage, plastering defects, paint peeling, and cracks. Hence, the consultants and Ambo University project representatives should adhere with the standard specifications, and must exercise their profession according to the ethical code of conduct. All of these, it will play a vital role in the success of construction projects.
Quality of material issues have been a significant source of concern since the dawn of recorded history. Building materials are essential and should be performed according to standard specifications because they cover around 60% of the project cost. Prior to project construction, specific codes, standards, and specifications should be available. Using all required materials does not guarantee a sound building appearance or function. Even with suitable materials, workmanship, and supervision, unexpected output can affect a building. Quality workmanship is a comprehensive approach to bolstering building durability, serviceability, and safety. The study evaluated Ambo University's building construction materials and quality. Convenience and quota sampling techniques were collected from all contractors and consultants involved in building construction via questionnaires and interviews. A comprehensive literature review identified 15 major factors affecting building construction materials quality and workmanship, and respondents ranked them in the order of importance. Defects in existing buildings and ongoing projects had observed due to non-compliance with construction materials and workmanship based on specifications and standards. The results indicated that Ambo University building has no defect-free structure, including the degree and type of defects vary. A 94% of the studied buildings had moisture leakage, plastering defects, paint peeling, and cracks. Hence, the consultants and Ambo University project representatives should adhere with the standard specifications, and must exercise their profession according to the ethical code of conduct. All of these, it will play a vital role in the success of construction projects.
Contemporary vogue in concrete expertise was to use Industrial, Agricultural trash as Supplementary cementations materials for the development of blended cement concretes. RHA is one of waste from agricultural industry. In the present Article, Rice Husk Ash (RHA) partly replaced with cement in the proportions of 0%, 5%, 10%, 15%, and 20% to compose M60 grade Concrete. Concrete cubes were divulged Magnesium sulfate and Sodium Sulfate in concentrations of 1%, 3% and 5% for the perpetuation of 28, 60 and 90 days. The Experimental data demonstrate that RHA improved the counteraction to sulfate attack on concrete with RHA when Compared with Concrete without RHA
Contemporary vogue in concrete expertise was to use Industrial, Agricultural trash as Supplementary cementations materials for the development of blended cement concretes. RHA is one of waste from agricultural industry. In the present Article, Rice Husk Ash (RHA) partly replaced with cement in the proportions of 0%, 5%, 10%, 15%, and 20% to compose M60 grade Concrete. Concrete cubes were divulged Magnesium sulfate and Sodium Sulfate in concentrations of 1%, 3% and 5% for the perpetuation of 28, 60 and 90 days. The Experimental data demonstrate that RHA improved the counteraction to sulfate attack on concrete with RHA when Compared with Concrete without RHA.
Construction projects play a vital role in the development of Jordan. Quality control performance is one of the important features in all projects successes. Problems occur frequently during construction projects lifetime leading to disputes, delays and litigations. Therefor it is essential to study and analyze all quality control related factors and it is association with engineering defects. This research identifies nine of these factors that have the greatest impact to arise. Subsequently, a questionnaire survey was presented into 79 question. The questionnaire survey was distributed to 196 specialist engineers represent a selected sample from the Jordanian Engineers Association. Statistical analysis was carried out by employing the (SPSS) program. Data related the quality control factors and that's effects the engineering defects were analyzed and discussed in details.
The construction industry plays a very important role in nation development and in construction project delivery and timely provision of shelter and dwelling units for the masses. The aim of the study therefore is to study cost and time performance on building project in developing economy, with a view to finding ways of improving cost and time performance on building projects. Some of the developing in used in this context includes: Nigeria, Togo, Cameroun, and Ghana. A population size of 70 was selected, and a total sample size of 59 respondents was used in this study, with questionnaire distributed to construction professionals. Variables pertaining to the above listed targets were identified and incorporated into questionnaires as the primary source of data. The data was collated and analysed, using mean item score ranking, percentages and the use of descriptive statistics. It was discovered that variables like rising prices of building materials, inclusion of additional work as a result of clients' request, deterioration in economic situation, were identified as the top causes of variation in construction project from developing countries. Also, cost, poor planning and scheduling, delay in payment approval for additional work, work suspension by client, were identified as top causes of time and cost variations. The study recommend among other things that: full consideration should be given to projects from inception to completion, adequate and effective consultancy services for clients, as well as strict follow up of programme of works by every contractor for a construction project.
ISO 9001 standard for quality management system was established by International Organization for Standardization in 1987. From that time, all construction companies throughout the world have gladly welcomed this system. Main purpose of this study is to identify implementation level of basic elements of ISO and the main advantages of ISO 9001 in construction firms after implementation of these elements. A total of thirtytwo (32) certified construction companies of Pakistan were fully observed and surveyed. The structured questionnaire survey respondent rate remained fifty-eight percent (58%). The collected data was analyzed with Statistical Package for the Social Sciences (SPSS) version 24. The evaluated results present the important basic elements of ISO 9001 and the most significant advantages. The findings of this research study will help the construction campiness of Pakistan in improving the quality of work; performance and it will also create interest in other construction organizations for implementing ISO 9001 for grooming the quality standards of their projects.
Change affects every aspect of human activity. Change is the main reason for the failure of the project. Change orders play a significant role in the construction industry as they have a significant impact on the cost of the project, schedule, quality, safety and performance. Thus, the study identifies the effect of change orders on project duration. The analysis of the factors classification was made by RIW method. Financial problems of contractor & owners, weathering conditions, inadequate drawings, inadequate details, change in project specification, conflicts in contract documents and inadequate design are observed as the fundamental factors causing change orders and in result effects project duration. The study focuses on developing a knowledge-based support system for efficient change management to enable professionals to be aware of the factors that trigger changes and their frequent effects on project finalization. It provides professionals with the knowledge to make more informed decisions and take proactive measures to reduce potential changes in the future.
Construction Projects are the one which is associated with the combination of various activities, which requires a contribution from various parties. Hence there is a greater probability of the occurrence of delays in the construction. This delays in completion of construction projects can be a major problem for contractor companies leading to costly disputes and adverse relationships amongst project participants. so, by this report to explain the various factors leading to delay that is the causes of delay and their impacts on different construction projects. Because every project is unique in its perspective, although every project has its individual causes for the delay and the respective impacts like time overrun and cost overrun. The aim of this paper is to identify the causes of delay factors on India construction projects and analysing these factors with the relative important index (RII) and Analytical Network Process (ANP). For this purpose, 70 different delays factors were identified and categorized into 7 major groups through detailed literature review and the help of case study. A questionnaire survey was carried out targeting 60 we received 45 respondents. Based on this response the relative importance and ranking of these delay factors were analyzed by RII and ANP. According to these results the factors and groups contributing the most to delays and their impacts were discussed and some suggestions were made to minimize and control delays in construction projects.
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