Monitoring Tools amp records Quality AssuranceQuality Control Why we need Contracts Construction Management Training Module1 2 Consideration ACCEPTANCE OFFER Value Causa CONTRACT One party ID: 744094
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Slide1
Contract Supervision
Roles & Responsibilities
Monitoring Tools & records
Quality Assurance/Quality ControlSlide2
Why we need Contracts?
Construction Management Training Module-1
2Slide3
Consideration
ACCEPTANCE
OFFER
(
Value/ Causa)
CONTRACT
One party
To other party
RISK
DETREMENT
LOSS
FOREBEARRANCE
RIGHT
INTEREST
PROFIT
BENEFIT
Construction Management Training Module-1
3Slide4
Key Elements of a ContractSlide5
Conditions o
f Contract
Construction Management Training Module-1
5Slide6
ICTAD CONDITIONS OF CONTRACTS-AVAILABLE PUBLICATIONS
ICTAD/SBD/01 - Standard Bidding Document for Procurement of Works (
Vol
1&2,
Yr
2007)
ICTAD/SBD/02 - Standard Bidding Document for Major Contracts ( Vol 1&2, Yr 2007)
ICTAD/SBD/03
- Standard Bidding Document for Minor Contracts ( Vol 1&2, Yr
2007)ICTAD/SBD/04 - Standard Bidding Document for Design & Build Contracts ( Vol 1&2, Yr 2007)SCA/3/2 - Specifications for Water Supply, Sewerage & Storm water drainage ( 2nd Edition April 2002) Construction Management Training Module-1
6Slide7
Parties Involved in Contract SupervisionSlide8
What are the Engineer’s duties and powers?
Supervision
Instructions
Extensions & Suspension of Contracts
Valuation & Claims
Mediation at Contractual DisputesSlide9
Engineer’s powers - Supervision
Supervision
Organization & Correspondence
Agreed
Contactor’s work
programs.
Examining contractor’s proposal’s &
Method Statement and approving
Acceptance of
tests at completion and ordering commissioning of elements.Comment satisfaction Slide10
Responsibilities of Engineer’s
Representatives
/ site agents
Act according to delegated functions
Watch, supervise & examine site works with tests
Adherent to the orders/ decision of the engineer.Records on extra or additional works, pertaining to the extension of timeJoint admeasurementsOrder stoppage of work at unsafe situations / non-compliance with specificationAssist Engineer on valuation/ claims Slide11
11
Monitoring
Tools/methods
Audit
measures the cost or value of inputs, such as materials and manpower, in relation to producing the outputs.
Audit
could be in both Technical & Financial Aspects. Audit mainly measures efficiency using quantitative methods.
Management Information System (MIS)
is a process by which raw data is collected, summarized and given to the management of a project or program. It includes computer-aided information systems and is meant to alert the managers who then take decisions.
MIS is useful for efficiency questions; however, ensuring the validity/accuracy of information can be difficult.Performance monitoring (also called performance evaluation) checks what is achieved and the expenditure for the different achievements for the project. The validity of performance monitoring can be problematic when performance monitoring is connected to the release of payments.Auto-monitoring
(also called auto-evaluation) originally meant assessment by an individual or a small group of their own activities judged against a set of indicator, which they set for themselves. The concept has since broadened to mean increasing the capacity of the project personnel and stakeholders for monitoring their own programs and
activities taking control of their own programs. Both qualitative and quantitative methods are used.Slide12
Construction Records for Contract Monitoring
Contractor’s Submittals
Submittal register
( Program for submittals)
Master
Work Program
& Individual programs for sub-componentsMethod Statements for works including temporary worksMaterial Test reports and applicable standardsManufacturer’s
performance or test certificates
Safety & Environment Management Plan during Construction
Construction RecordsOfficial site Log book Resource utilization daily records Supervisory & LaborPlant & Machinery Daily Weather Records or weather chartsDaily work records ( DPR)Approvals Pre-inspection records
Prior approval forms ( setting out, Concrete, etc)Test witness records ( site & laboratory)Testing & commissioning approval formsSlide13
Quality Assurance & Quality Control at Construction
What is Desired Quality?
Quality of construction
attributes
appearance, aesthetic, stability, strength and durability
Construction
quality is a relative term
and thereby before controlling quality one must have a “reference quality level”
Quality at construction work shall involve cost & time
and thereby tread-offs or balance to be considered with “ complementary cost” and related “time factors”Technical quality shall be governed by “ Standards” but Functional or Operational quality is the desired level for intended purposeAchieved by how & whom?Shall be an inbuilt element of the design documentation ( design brief) and as well as at the Contract documentation ( specific terms)
“Quality Culture” is a important feature at the construction and shall be a achieved through “team spirit “ of both the Engineer /Engineer’s representatives and the Contractor
Should not strict on “ perfection” or “Zero defects” thereby tolerances and flexibility shall be clearly spelled out at the inception of work and at agreed method statements & shop drawingsQuality assurance should be ensured through standard quality tests and with trade practices and should disclose the satisfaction of quality of end product after test proceedings“ Quality is never an accidently achievement and it always the result of intelligent effort”Slide14
Standard Quality Tests
Field Tests
Long & Short Duration Pumping Tests
Standard Compaction Tests for dry density ( ASTM D 1557, BS 1337)
Hydrostatic Pressure Testing for Pipe Lines
( BS 8010, AWWA C 600, AWWA C 907) )
Hydrostatic Pressure Testing for Water Retaining Structures ( BS 8007)
Sterilization or Disinfection of completed pipe lines ( ANSI/AWWA C 651)
Trial Mix for Concreting (ASTM C 143)Slump Test for Concreting ( ASTM C 143) Laboratory TestsQuality of Water for concreting ( BS 3148)
Fine & Coarse Aggregates for Concreting (BS 882 or ASTM C33
)Sampling & Testing of Reinforcement ( BS 4449, Appendix C)Concrete Mix Design ( BS 8007, BS8110, BS 5328)Admixtures ( ASTM C 494 or BS 5075) Curing Compounds ( ASTM C 309)
Sampling & Testing of Fresh & Harden Concrete ( BS 1881 or ASTM C31 & 39)
Sampling & Testing of Cement Blocks ( BS 6073 or ASTM C 90)Slide15
Some Rural Constructions Slide16
Some Rural Constructions Slide17
Practical Aspects/Areas to Give Thought to ensure end Quality at WSS
Site layouts
Construction sequence at congested work
Depth of pipes & bedding materials
Locating washouts & air valves
Laying pipes in hilly terrains
Mix designs and admixtures for Gr 35 concreteTemperature control at concreting and placing of construction joints at water tanksColor selection for structural elements and buildings and final finishing techniquesApproving methods for defect repairsSlide18
Thanking you for your keen interest and concerns on quality construction at peaceful working environment
Sanath
Fernando