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Contract Supervision  Roles & Responsibilities Contract Supervision  Roles & Responsibilities

Contract Supervision Roles & Responsibilities - PowerPoint Presentation

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Uploaded On 2018-12-19

Contract Supervision Roles & Responsibilities - PPT Presentation

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

quality amp astm construction amp quality construction astm monitoring records contract standard work management tests contracts testing site test

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Presentation Transcript

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