1. Introduction
FAM Construction (Private) Limited; successful implementation of projects is dependent on Quality control, which is vital to the construction of any civil work project. Defects or failure in constructed facilities can result in large cost overruns and lead to delays of the implementation schedule. Even with minor defects, re-construction may be required and facility operations impaired and delayed. In the worst case, failures may cause personal injuries or fatalities. Sound project management of the program supported by a thorough Quality Control System (QCS) ensures that the work is carried out professionally with value engineering. For the efficiency of the Quality Control Project Management it will be necessary to have a fair and transparent mechanism with clear communication and instructions on site.
FAM quality system described in this project quality plan (PQP) shall form the core activities and processes to be utilized to monitor and control throughout the success of this project.
FAM Quality Control Plan comprises:
2. Objectives
With a clear concise and manageable system each member of the Construction Supervision Team can ensure that it has played its part in the success and value of the project. Procedures that have been closely followed will ensure that the Employer/Client is confidently receiving a cost effective quality product in a timely manner.
It is vital that the quality system is reviewed regularly in order to revise procedures when necessary and/or required Suggestions for improvements in procedure changes and revisions from all parties involved in the program are necessary.
This quality control plan does not endeavor to repeat or summarize agreement requirements. It describes the process that the PO will use to assure compliance with those requirements. The agreement is the foundation for the outcomes expected from the quality control plan.
3. Communication Plan (Interaction)
In order to have thorough and clear communication at all times between all involved partners Resident Engineer shall coordinate:
4. Duties, responsibilities and authority of QC personnel
4.1 Client’s representative
The Client, represented by the Resident Engineer is responsible and accountable for the implementation of all activities. The Client will facilitate the efforts of the design and construction projects. The PM will facilitate the efforts of the design and construction teams in a coherent and efficient manner and will be ultimately responsible for ensuring the objects of the PO and PPAF as described in the agreement and supporting documentation.
4.2 PO representative
Resident Engineer is directly supervising and monitoring to assure the construction quality control system. Resident Engineer will report directly on a day-to-day basis regarding the progress of the works. Resident Engineer’s Quality Control team ensures that the Program Quality Management and Safety System are being implemented according to the requirements of the PO. The Resident Engineer oversees all technical aspects in the specified technical area of work including but not limited to assessment, design, Bill of Quantities (BOQ) calculation, tendering, technical specification, and monitoring.
4.3 Resident engineer
The Resident Engineer is responsible for the directly supervision of FAM’s site engineers including FAM’s QC engineers. Provide field project control support by identifying, monitoring, project related issues, impacts and resolution. Directly liaise with contractor and Client when necessary and directly report to the Client for technical advice, support and field resolution when necessary. The Resident Engineer oversees all technical aspects of civil work project implementation work in the specified technical area of work including but not limited to assessment, design, Bill of Quantities (BOQ), calculation, integrity, professional design standards and all services required by the agreement. Furthermore for the development of design quality control plan, incorporation and maintenance for the approved design schedule. Resident Engineer’s shall be responsible for ensuring that all designs, specifications and BOQ’s produced for this award are in accordance with the requirements identified herein. The Resident Engineer will be responsible to implement and manage the quality control program. In addition to implementing and managing the quality control program, the Resident Engineer is required to perform submittal review and approval, ensure testing is performed and provide QC certification and documentation as required in the agreement. The Resident Engineer is responsible for managing and coordinating personnel required by the agreement.
4.4 FAM’s project manager
The contractor (FAM) has based on the contract agreement to assign a Project Manager with required qualifications and skills to ensure the completion of the project successful according to the approved implementation schedule in quality and quantity. He is overseeing the work of the site engineers. The PM will guarantee QCM standards are performed, and prepare QC certifications and documentation required by the agreement. The PM shall be on the construction site during any shifts when construction work is performed. Duties and responsibilities according to the QCM are not limited to the contract agreement between the Employer and Contractor.
4.5 FAM’s site engineer(s)
Site engineer oversees the whole construction process and shall assist the PM in processing and maintaining files for submittals, preparing and publishing reports, and meeting minutes. The Site Engineer(s) is responsible to ensure the quality and quantity of the work based on the Design and Technical Specifications. He has to manage all processes on site, will be responsible for the material planning and timely provision, the planning of work force to ensure the project implementation in time, quality and quantity. The site engineer(s) is empowered by the PM to suspend construction activities while deficiencies are corrected after the Client and Clients Representative are informed. There will be at least one site engineer per site but not limited if necessary and/or requested by the client or clients representative. Duties and responsibilities according to the QCM are not limited to the contract agreement between the Employer and Contractor.
5. Design
5.1 Background
Considering the limited resources in Pakistan, considering the social and economic conditions and aiming to produce and present the highest yield, quality control and quality assurance are gaining considerably large importance.
5.2 Purpose of this design quality control plan
5.3 Subjected to the conditions
5.4 The components of design quality
5.4.1 Proper team
The Design Company / Contractor which is responsible for Design QC will provide or employ professional people who have good training and have experience in developing designs. All matters concerning the quality control of the project will be reported in written to the Client and Resident Engineer.
5.4.2 Proper Utilities
The Design Company / Contractor will provide proper equipment and dependable software for Analysis, Design and Computer Aided Drawings.
5.4.3 Adequate training
The Design Company / Contractor that will have contributions to the designs will be trained about internationally accepted and used designs techniques and construction systems.
5.4.4 Codes and standards
Confirmation of the designs to the following codes and standards will be achieved by:
5.4.5 The governing codes in quality control
5.5 Main steps of quality achievement
5.6 Design quality control methodology
6. Construction
6.1 Submittal procedures and initial submittal register
Resident Engineer will administer and control the processing of contractors’ submittals. After being reviewed for completeness, submittal documents will be transmitted to the relevant staff in Design Department for review and verification for compliance with contract requirements. Submittal documents need to be approval finally by the Client.
In case of Design/Build contracts the submittal documents can be prepared in compliance between the design and construction department of the contractor but have to be finally approval by the design department.
6.1.1 Submittal register
FAM will submit and maintain a submittal schedule. The Resident Engineer will review the schedule in accordance with the construction progress schedule.
The detailed progress schedule will be initially submitted within 14 days after the award of the contract and may be updated as required or after application of the contractor. In any changes apply the contractor need the approval by the Client or Clients Representatives.
Resident Engineer will maintain a completed submittal schedule and list product s for all items requiring Clients review and approval, as follows:
These schedules shall be presented in the attached form in both electronic and hard copy version and shall be updated and sent to the Clients and/or Resident Engineers on a minimum monthly basis.
6.1.2 Review period
FAM will insure that Submittals will be prepared sufficiently in advance so that review and approval by the Resident Engineer in coordination with the Client will be given before commencement of related work. The contractor is responsible for the preparation of submittals according to the time schedule to avoid delays. If there any delays apply due to contractors fault penalties according to the contract will apply.
In case longer review and approval periods are required, Resident Engineer and the contractor shall schedule work accordingly to avoid that progress schedules are not adversely impacted.
6.1.3 Submittal reviewers
6.2 Changes in approval submittals
Changes in approved submittals will not be allowed unless those approved submittals with changes have been resubmitted and approved as written in clause 6.1.
6.2.1 Supplemental submittals
Supplemental submittals initiated by the contractors for consideration of corrective procedures shall contain sufficient data for review. Supplemental submittals will be made in the same manner as initial submittals.
6.2.2 Engineering review
Supplemental submittals initiated by the contractors for consideration of corrective procedures shall contain sufficient data for review. Supplemental submittals will be made in the same manner as initial submittals.
7. Laboratory testing for material
If required the client and Site Engineer reserves the right that contractor has to contract material testing laboratories for each job site, for on-site testing and off-site testing. The selected laboratory for each location needs to be approved by the Client and Resident Engineer.
7.1 Testing plan and logs
As tests are performed, the contractors PM or Site Engineer(s) shall record on the “Testing Plan and Log” the date the test was performed and the date the test results were forwarded to the Resident Engineer. The Resident Engineer has to submit all test results to the Client. A copy of the final “Testing Plan and Log” Shall be provided in the Operations and Maintenance support documentation.
If required materials qualification testing will be done prior to construction to verify that the materials comply with requirements of the contract Agreement, the Technical Specifications and BOQ. The contractor will obtain representative samples of the materials designated as the proposed source of the materials. Test samples will be sent by the contractor to the approved testing laboratories. The testing laboratory will report all test results for determination of materials quality. The test will be performed by the laboratory, the contractor and monitored by the Resident Engineer.
The client will periodically inspect the material being used. If determined that the characteristics of the material being used differ from the material initially tested or designed, the contractor has to repeat the qualification testing. If the new material qualification test results meet the criteria of the technical specification as determined, the materials may be used for the work, otherwise, previously approved materials must be used or other acceptable materials must be sampled and tested as noted before prior to incorporating into the work.
7.2 List of materials under testing system
The below stated list of material is for sampling and not completed. The client and Resident Engineer reserve the right to require tests for material additional to the materials as stated below.
All items for construction shall be covered under the Contract Agreement, the Technical Specifications and BOQ and shall meet IBC Standards. If required some of the items shall be provided as samples which the contractor must produce/purchase to the same standard.
7.3 Material method of testing and frequency
All quality assurance testing will be conducted in accordance with project specification, the contract agreement, technical specifications and BOQ or in accordance with an individual project construction plan. The Resident Engineer will observe all applicable testing methods, as previously identified. The documentation and reporting of test results will be included with the daily construction QC report and entered into QC system.
All test results have to be update and filed separately and if required to be presented to the client.
All tests shall be carried out in accordance with international codes and / or specification.
7.4 Routine materials testing
The Resident Engineers will routinely inspect and verify that labels, tags, manifests or the identifying documents of all construction materials conform to the approved material specifications.
The Resident Engineers reserve the right to be present to witness testing and observe constructed features before being covered or obscured by subsequent construction activities.
All daily routine inspections, testing monitoring, and independent testing performing personnel will be recorded and entered into the QC system and will be available to be viewed by the Resident engineers as required.
Resident Engineer shall develop material testing procedure based on construction progress schedule and quantities according to plans, specifications, and other contract documents for every definable feature of work include activity, sampling frequency, date, number of samples, and location of test.
Below stated table needs to be adjusted according to the project specifications and required standards in the design.
Required Test | Test Method | Test Frequency | Acceptance Criteria (verified By QC Manager) |
---|---|---|---|
Grading & Leveling | |||
As per IBC 1803 | Land surveying | Prior to start excavation | To Establish finish floor elevation as per specifications and drawings |
Compaction | |||
CBR Test Modified proctor compaction test | ASTM D 1883 & ASTM D1557 | One sample of material delivered 5 samples of compacted material for each 400m2 | |
Concrete | |||
Compressive | ASTM C39 | Preliminary testing of mix design (Test at first 7 day and 28 days). Samples of strength test will be Taken not less than once (Five samples) for every 100m3, or less than once for each 465 m2, nor less Than once a day. 3 cylinders @ 7 days, 3 cylinders @ 28 days and 2 Cylinders reserve. | Minimum strength based on technical requirements and structural design. |
Water/Cement | Preliminary testing of mix Design | Limit.45 by weight | |
Slump Test | ASTM C143 | 1 per batch prior to pouring concrete | Reinforced concrete 100mm Non reinforced concrete, side walks, SOG 75mm. |
Reinforcement Sheet | |||
Minimum Yield Strength | ACI 318 Section 3.5 | On delivery on site samples will be taken from every type of rebar prior to installation and suppliers certificate | Must meet specifications requirement of grade 60, > / 420 MPa yield strength |
Water | |||
Clearness & Cleanness | ACI 318 Sec.3.4 | Print to concrete mix | Insure free of oil, acids, salts, organic and other substances |
Aggregate Concrete | |||
Gradation, salt, harmful materials As per 318 Sec.3.3 | ASTM C33 & C330 | One sample at source prior to commencement of work | Insure physical requirement of coarse & fine aggregate. Absence of harmful substances |
Grout | |||
Minimum Compressive Strength | ASTM C1019 | Preliminary testing of mix design. Test once on a daily basis during grouting operations. | (i) Compressive strength for MTC project remain at least 13.8 MPa) @ 28days Compressive strength at least 3000 psi (21 MPa) @ 28 days |
Cement Mortar | |||
Type M and / or S Cement | ASTM C 270-08a Building Code Requirements for Masonry Structures table 2.2.3.2, Table 3.1.8.2, Table 5.4.2 | Masonry cement mortar (pre-packaged). Mix Ratio: Correct proportion of sound & water to meet ACI 530.08 min. required strength. Ref. Mix Ratio for Type M & S (refer: QC/SITE/&) |
Type M: Compressive Strength (17.2 MPa) 2500 PSI @ 28 days. (ii) Type S: Compressive Strength 1800 psi (12.4 MPa) @ 28 days |
Masonry Block | |||
Compressive strength & dimension | Sampled and tested in accordance with ASTM C 140 | Preliminary test of 3 samples of concrete blocks delivered on site | Unit conforms to ASTM C90. ASTM do not required design standard. Only help assure compliance with the design. Compressive strength and not less than of 1500 psi |
Tensile strength, rapture strength Roof Insulation system / product | ASTM C 578-01 (extruded, expanded right thermal properties | Prior to application | Insure tensile strength 600N/5cm, rapture strength130N/5cm, as per specifications |
Structural Steel Roof | |||
Welding Reqr:- Welding rod, Heaters inspection materials, Dye Penetrant, magnetic flux | Inspection according to AWS D1.1 and IBC 1704 AWS D 1.1 & 1.8 | Inspection continuous onside and shop | Insure welding is in compliance with AWS D1.1, workmanship, technique, qualification of welders |
Electrical wires & Cables | |||
Manufacture’s certificate | Inspection Electrical QC/Design Engineers and NFC standards | Samples to submitted prior to installation | To be approved by QC electrical Engineer |
Lumbing Pipes | |||
Manufacture’s certificate | Field Pressure test and IPC standards | After installation of plumbing pipes | According to the mechanical specifications |
Water Well | |||
Physical, Chemical & Bacteriological | Test according to WHO requirements | Well water will be tested after drilling well | Tested by approved water testing lab. |
8. Complete rework items-procedures
Any indication of system deficiencies whether discovered as a result of the Client, Resident Engineer and/or the Contractor/Designer checks and tests, will result in modifications to the system to correct these deficiencies.
The contractor shall be notified by the Resident Engineer in writing when deficiency is discovered and shall immediately stop work, or use of the deficiency before work continues. The Client has to be informed in written.
If any dispute the contractor shall submit in writing for Client and Resident Engineer.
If the contractor believes a suitable repair is possible, executed at their expenses, the contractor has to prepare a plan to affect repair or correction and submit for the Client, Resident Engineer for approval.
For the purpose of this manual, deficiency shall be any variation from the plan or specification that result in lower quality of work, reduce useful life circle of work and impair functionality of work and unsafe condition, or materials change in the appearance than is deemed by the Resident Engineer to be unsatisfactory and to require fulfillment according to the Contract Agreement, Technical Specifications and BOQ.
8.1 Responsibility
It is the responsibility of the Resident Engineer to ensure identified construction defects are corrected in a timely manner. Also defects identified by Client and Resident Engineer will be noted and rectified in a timely manner.
8.2 Item list
The Resident Engineer will maintain a list of work that does not comply with the construction plans and Technical Specifications Contract Agreement and BOQ.
An item that is corrected on the same day it is discovered will not be reported in this log, but in the daily quality control report.
8.3 Re-work procedure
When executed work, materials, or installations are found in non-compliance with Technical Specifications and/or drawings, the Contractors PM and Site Engineer(s) under supervision of the Resident Engineer shall ensure that non-conforming materials, work, or installation are identified and controlled storage and separated to prevent unintended use or delivery.
The Resident Engineer will notify the contractor of any non-compliance. After receipt such notice, the contractor shall take immediately corrective action.
Major deviations from the contract requirement and/or quality are non-conformance and must be formally documented for corrective action by the Contractor. A non-conformance report must be issued to the contractor for corrective action to be taken within 3 working days.
If the Contractor fails to correct a minor deficiency after 5 days of the notice, it will result in a non-conformance and been formally documented.
If the contractor fails to take corrective action regarding non-conformance within the specified period of time, a Stop Work Order will be issued to the contractor.
Related or continuing activities or construction shall be stopped until the rectification any deficiencies that are critical to the integrity of the structure or the facility and or safety of public.
If possible, this stop work order will only affect the defective, deficient or unsafe work (areas) and the contractor may continue with any or all other project work.
After issuing the Stop Work Order, or if possible in advance, the Resident Engineer has to inform the Client to help solve the issues with contractor’s management.
8.4 Preventive action
Preventive actions will be taken to eliminate any cause or potential non-conformity. Continuous prevention measures are permanently needed to avoid occurrence of deficiencies.
9. Reporting
9.1 Responsibility
FAM’s PM and site engineer(s) will maintain current and complete records of on-site and off-site quality control project operations and activities.
Resident Engineer will maintain a second copy of all quality control records in site office and guarantee the unlimited access through the Client.
Resident Engineer is responsible for reviewing and approval Contractors PM and/or Site Engineer(s) daily, weekly and monthly construction monitoring report.
FAM’s PM and/or Site Engineer(s) are responsible for submitting 3 weeks look ahead work plan and weekly performance.
9.2 Daily inspection report
QC inspection reports, provided by the Resident Engineer, will be submitted daily and will account for each calendar day throughout the life cycle of the project.
The Resident Engineer shall inspect contractors daily work activated, ranging from manpower checks, tools and equipment, availability on site, start and stop times etc. and QC inspection of work activates.
The Resident Engineer shall review, comment and approve the daily reports presented by the contractor.
Reports will include pertinent information including directions received, problems encountered during construction, work progress, safety hazards encountered, instructions given and corrective actions taken, delays encountered, a record of visitors to the work site, quality control problem areas, weather condition, photos, deviations from the QC plan, construction deficiencies encountered, and record of meetings held.
9.3 Monitoring and control of works program
The Resident Engineer team shall undertake regular review of the Contractors Overall Works Program so that it shall be in line with the approved Master Implementation Plan (base line programmed). Critical Path Analysis shall be performed to identify critical activities. The Resident Engineer would work with the contractor to mitigate any delays to keep the project on schedule. QC and site engineers shall submit weekly performance / productivity S curve chart together with 3 weeks look ahead programmed.
9.4 Monthly QC report
The monthly progress report shall contain overall progress of work plan activities reported for the current month. Financial progress, milestones key dates, accomplishments, bottlenecks, materials certifications, tests performed, QC deficiencies corrected.
9.5 Test records
All testing activities will be recorded on the relevant construction QC Report, indicating the name and number of tests performed, specification paragraph reference, and location performed, and will be entered into computerized QC tracking system. Test results will be recorded on the daily construction QC report or attachments and entered in QC system. Actual test reports will be furnished promptly to the PO as directed by the specification.
9.6 Site document control
The Document Controller (Administration support staff) shall implement the Project Quality System to control the identification, numbering, modification, approval, distribution and filing of all documents, data and drawings.
The checking, approval, identification and distribution of the document and drawings are as indicated in the Project Quality System Procedure (PQSP). Each document shall be assigned a unique number in accordance with standard numbering procedures.
9.7 Quality records
9.8 Documentation storage
QC management team shall maintain all construction related document and submittals in a combination of a secure e-document filing and storage system. The computerized document control tracking system shall be achieved in PO’s network server. Internal project QC audit shall conduct at random internal on the document controls system when necessary.