2. The quality as a concept has a deep root in the history, anyway the
quality profession greatly evolved after World War II when
suddenly people’s lives could be destroyed by poor quality
products. Edwards Deming one of the famous quality expert and
scholar emphasized that the keys to quality are in management’s
hand. According to him 85 percent of the quality problems are due
to the system and only 15 percent are due to the employees. In
other words, with a reliable system average people can achieve
good results while, in the absent of the system it is difficult to
achieve quality target. Joseph Juran is other famous quality
scholar, and he is like Deming built his quality reputation in
America and then took his expertise to Japan in 1950s.
Introduction
Quality management practices in
building construction projects
3. Quality management practices in building
construction projects
• Quality management practices in building
construction projects involve a systematic
approach to ensure that the project meets the
specified quality standards. Here are some key
practices:
1.Quality Cost
In construction projects, quality is defined and
associated with project scope, Cost and time. Cost
of quality refer to the total cost incurred during the
entire life cycle of construction project in preventing
nonconformance to owner requirement.
4. Cont…
• The project budget is fixed there for; it is important to
avoid variation during the construction process. It is
very difficult to get approval for variation during the
project execution, and it is important to avoid such
case. Quality cost related to construction project can be
summarized as follow
1.Internal failure cost
. Rework
. Rectification
. Rejection of check list
. Corrective action
5. Cont…
ii. External failure cost
• Breakdown of installed system
• Repair
• Maintenance
• Warranty
iii. Appraisal cost
.Design review/preparation of shop drawings
.Preparation of composite/coordination drawings
.Onsite material inspection/test
.Offsite material inspection/test
6. Cont…
iv. Prevention cost
. Preventive action
. Training
. Work procedures
. Method statements
. Calibration of instruments/equipment
7. Cont…
Quality management practices in building
construction projects involve a systematic
approach to ensure that the project meets the
specified quality standards. Here are some key
practices:
2. Quality Planning: This involves defining the
quality objectives, determining the necessary
resources, and developing a quality management
plan. It includes identifying quality requirements,
setting performance standards, and establishing
inspection and testing procedures.
8. Cont…
Quality plan should include;
(a) A quality policy statement (vision and mission)
(b) Project quality structure and quality management
system
(c) Quality objective
(d) Rectification of defects and prevention of future
problems
9. Cont…
The PMBOK identifies the below tool &
techniques for quality planning:
• Cost-benefit analysis
• Cost of quality
• Benchmarking
• Design of experiment
• Meeting
10. Cont…
3. Quality Control: This practice involves
monitoring and inspecting the construction
process to ensure compliance with quality
standards. It includes conducting regular
inspections, testing materials, and verifying
that work is being done according to
specifications.
The following activities consider as a
sample of quality control activities in
construction projects:-
11. Cont…
. Inspection of steel and form work for concrete members
. Field density tests for soil
. Slump tests for concrete
. Crushing tests for concrete
. Earn value reports (Control schedule by schedule index and
control cost by cost index)
. Flood test
The quality control activities are crucial to monitor and control
the execution of the project. Failing to perform these activities
has a catastrophic impact on the project.
12. Cont…
4. Quality Assurance: This practice focuses on
preventing defects and ensuring that quality
standards are met throughout the project. It
involves implementing quality control
processes, conducting audits, and providing
training to the construction team to maintain
consistent quality.
13. Cont…
The tools and techniques for quality
assurance are:
- Quality management & control tools
- Quality audits
- Process analysis
14. Cont…
5. Document Control: Proper documentation is
crucial for quality management in construction
projects. This practice involves maintaining
accurate records of design documents,
specifications, inspection reports, test results,
and any changes made during the project. It
ensures that all stakeholders have access to the
latest information and helps in resolving any
disputes or issues that may arise.
15. Cont…
The contractor should store and handle these
documents in a proper way to retrieve them upon
request. The documents are:
• Contract documents, agreement and project
technical specifications
• Overall project schedule
• Approved drawings
• Method of statements
• Request for inspections (RFI) & Request for
material inspections (RMI)
16. Cont…
- Tests records
- Marked up drawings
- Concrete pouring forms
- Factory acceptance tests (FAT) reports Inspection test
plan (ITP)
- Site instructions
- Calibration certificate
- Approved material vendor list
- Project organization chart
- Log sheet for all the documents (tests records, RFIs
&RMIs, drawings, site instructions…and so on
17. Cont…
6. Supplier and Subcontractor Management:
Ensuring the quality of materials and workmanship
from suppliers and subcontractors is essential for
overall project quality. This practice involves
evaluating and selecting reliable suppliers and
subcontractors, establishing clear quality
requirements in contracts, and conducting regular
inspections and audits of their work.
18. Cont…
7. Continuous Improvement: Quality management
in construction projects requires a continuous
improvement mindset. This involves analyzing data,
identifying areas for improvement, and
implementing corrective actions to prevent future
quality issues. It also includes learning from past
projects and incorporating lessons learned into
future projects.
19. Cont…
Quality improvement is achieved by continuously improving the
production and business process of an organization. It is optimized
by :-
• Viewing all work as process, whether it is associated with
production or process
• Making all processes effective, efficient, and adaptable
• Anticipating change in customer need
• Controlling in-process performance using metrics such as scrap and
cycle time, and monitoring tools such as control chart
• Maintaining constructive dissatisfaction with the present level of
performance
• Eliminating waste and rework wherever it occurs
• Investigating activities that do not add value to the product or
service, with the aim to eliminate those activities …ect..
20. Cont…
8. Stakeholder Engagement: Engaging stakeholders,
including clients, architects, engineers, and
contractors, is crucial for effective quality
management. Regular communication,
collaboration, and feedback help ensure that
everyone's expectations are met and that quality
requirements are understood and implemented
correctly.
21. Cont…
Overall, quality management practices in building
construction projects aim to minimize defects,
ensure compliance with specifications, and deliver
a high-quality final product that meets the client's
requirements and expectations.