My Cesmm2 Wm2011 5apr11

Improved Standard Method of Measurement for Civil Engineering Works

Water Malaysia 2011

IMPROVED STANDARD METHOD OF MEASUREMENT FOR CIVIL ENGINEERING WORKS

IR. SOH KOK ENG

SMHB SDN BHD

5th April 2011

INTRODUCTION History of CESMM & Bills of Quantities Basic differences between the 3 SMMs

ISSUES AND CHALLENGES IN USING SMM JKR 203A Conditions of Contract Issues in using SMM

FRAMEWORK OF MY-CESMM2 Two documents, MY-CESMM2, Guide & Std Library of BQ Structure of MY-CESMM2 Three Divisions of MY-CESMM2 and Rules

IMPROVEMENTS IN MY-CESMM2 GUIDELINES WITH TECHNICAL NOTES STANDARD LIBRARY OF BQ

Format of Standard Library How to use the Standard Library of BQ How to build up the BQ

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INTRODUCTION

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HISTORY OF CESMM & BQ 1859 Ö Formal BQ introduced 1933 Ö ICE introduced standard procedure for BQ 1953 Ö SMM for Civil Engineering Quantities (ICE) 1967 Ö CIRIA report 34 1968 Ö SMM for Civil Engg Quantities (metric) (ICE) 1976 Ö 1st Edition of CESMM-UK 1985 Ö 2nd Edition of CESMM-UK 1991 Ö 3rd Edition of CESMM-UK

SMM IN MALAYSIA CESMM3 Ö UK - 1991 CESMM(M) - 2003 SMM2 Ö ISM Ö 2001

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SOME BASIC DIFFERENCES BETWEEN THE 3 SMMs

SMM2-ISM covers mainly building works and does not cover civil engineering works

CESMM(M) covers mainly civil engineering works and does not cover building works

CESMM(M) in tabulated format whereas SMM2-ISM in descriptive format

CESMM3-UK has separate items for supply and lay whereas CESMM(M) has supply and lay under 1 item

e.g. concreting works

CESMM3-UK Ö supply (1), lay (2)

CESMM(M) Ö supply and lay (1)

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SOME DEFINITIONS OF BQ The Bill of Quantities (BQ) is the agreed statement of the

prices which will be paid for work done by the Contractor for the Client and it shares with the drawings, specifications and schedules the responsibility for defining what has been agreed shall be done

The essential functions of the BQ is to limit the difficulty the Client has in forecasting and defining to a Contractor what is required to do.

On the other hand it limits the difficulty the Contractor has in forecasting precisely what the work will cost.

KEY WORD IS SPREADING THE RISKS

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ISSUES AND CHALLENGES IN USING SMM

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JKR 203A CONDITIONS OF CONTRACT

JKR 203A (Rev. 10/83) • Clause 26(b) requires the BQ to be prepared in accordance with the

SMM for Building Works prepared by Institute of Surveyors,

Malaysia

JKR 203A (2007) • Clause 26.4 in the new form allows SMM for preparation of BQ to

be also based on CESMM by ICE or any Method of Measurement as

set out in the BQ in addition to the SMM for Building Works by

ISM. Contractor says he uses CESMM3-UK to price it but the

Engineer says he is using SM-ISM?

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SOME ISSUES IN USING SMM

Although the Civil Engineering Standard Method of Measurement (CESMM) by ICE UK is often used for works of a civil engineering nature but there are many occasions particularly for, water supply, wastewater, etc, Consultants utilise their own Standard Method of Measurement.

Ö Under 1 Item - Supply, lay, including excavation, valves, thrust blocks, etc

Ö Under 4 Items - Excavation (I), Supply & Lay including joints (2), Valve (3), Thrust blocks (4)

Ö Under 7 Items - Excavation (I), Supply (2), Lay (3), Cutting of Pipes (4), Joints (5), Valve (6), Thrust blocks (7)

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SOME ISSUES IN USING SMM Trench excavation

Payment based on this

width?? Or this width??

If this width, what angle to

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SOME ISSUES IN USING SMM

SOME SAY OTHERS

Piling works

Pay 10m for supply and 7 m for driving

Pay 7m for supply and 7 m for driving

Who can say exactly what depth of pile to be driven??

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FRAMEWORK OF MY-CESMM2

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MY-CESMM2 Guide to MY-CESMM2 with Technical Notes Standard Library of BQ

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STRUCTURE OF MY-CESMM2

Process Approach

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THREE DIVISIONS OF MY-CESMM2 AND RULES

Each division only 8 items (max), WHY???

3 digit code number, B358, B3510???

B359.1 Ö Manganese, B359.2 - Iron

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IMPROVEMENTS IN MY-CESMM2

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Rule C2 - Item for general clearance shall be deemed to include the removal of trees and stumps (unless otherwise stated in item descriptions), undergrowth, shrubs, roots and the likes.

Rule M2 - Where measurement for trees are expressly required, it shall be measured under item for trees.

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Excavate to fill measured as 2 items but excavate to dispose measured for only cut

Rule D5 - Excavation to form a profile expressly required shall be classed as cut.

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Rule M19 - All filling shall be measured nett. Excavation in fill shall only be measured where it is expressly required.

STRUCTURE

STRUCTURES

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Rule C1 - Items for painting shall be deemed to include preparation of surfaces before painting including all necessary Temporary Staging.

Rule C2 - Items for painting shall state and include the application of base primer/ sealer required before painting the subsequent coats.

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Malaysian Standard Method of Measurement for Civil Engineering Works (MY-CESMM2)

Feedback on MY-CESMM2

50m 50m 25m 25m

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GUIDELINES WITH TECHNICAL NOTES

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GUIDELINES WITH TECHNICAL NOTES Each class arranged with a section numbering system which corresponds

with the First and Second Division

A210 Ö Facilities for the Engineer/S.O./PD’s representative, where, • A - Class A: General Items • 2 - Second item in the First Division • 1 - First Item in the Second Division

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STANDARD LIBRARY OF BQ

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STANDARD LIBRARY

Code numbers are important feature in CESMM but it is the most difficult to use and therefore not widely used

Standard Library with code numbers

Format in Excel as it is widely used

Used as a checklist and copy items to BQ as required

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STANDARD LIBRARY

How to use the Standard Library of BQ

One spreadsheet file contains multiple sheets

Open up a standard spreadsheet file and format to Std BQ format

Click on relevant class of work and scroll down until the desired item

Copy the required item in the user spreadsheet file

The item description as guide only and are with á[…….]à or á(…..)à

After the editing is done, the á[…….]à or á(…..)à should be removed

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STANDARD LIBRARY

How to use the Standard Library of BQ

Multiple items with the same code numbers

if only [100mm square] direct shear box test is required, the code

number shall be changed to D525 only and NOT D525.1

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STANDARD LIBRARY

How to build up the BQ

75mm thick Grade C20 lean concrete

Grade C35A concrete for base and wall

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STANDARD LIBRARY

How to build up the BQ

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My Cesmm2 Wm2011 5apr11

Documents

Transcript of My Cesmm2 Wm2011 5apr11

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