Salient Features of Mycesmm

Wednesday, October 15, 2014 1

Assoc. Prof. Sr. Sabaria Hassan FRISM, MRICS, MBQSM

Pusat Pengajian Ukur Bahan,

Fakulti Senibina , Perancangan & Ukur

UiTM, Shah Alam

SALIENT FEATURES OF

MyCESMM


INTRODUCTION

CURRENT ISSUES USING SMM

FRAMEWORK OF MyCESMM

Mycesmm

A guide to mycesmm

Standard library of BQ

CURRENT PRACTICES IN M’SIA |

Building works – SMM1 and SMM2 (2000)

Civil engineering works – CESMM3 (UK)

MCESMM (2003)

Ad-hoc basis

3

Based on Survey done during meet the industry with 147 respondents:• 24% use MCESMM,• 28% use CESMM (UK) 2nd & 3rd Edition and • 48% use other method of measurement.


ISSUES AND CHALLENGES

SOME ISSUES IN USING SMM : 1

3 m

7 m

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??


Trench excavation

Payment

based on this

width??Or this

width??

If this width,

what angle to

use??

CESMM (UK) - excavation in stages

SMM2 (M) eg. ‘excavate from 0m to 1.5m depth

from 1.5m to 3.0m depth a.s.o

MyCESMM - let the Contractor choose the appropriate method

of construction

- difficulties encountered and loss of productivity

associated with increasing depth of excavation

to be reflect in the builtup rate

- measured ‘whole’ = max depth

- item description or drawing should indicate the

depth of excavation to facilitate computation of rate

by the contractor (max depth and commencing

surface stated in description) ( as per 5.20)


Rate of Fill

Class F – Earthwork __________________________________________________________________________________

IMPORTED FILL

Importing fill materials occur, when

CUT (effective) – FILL = -ve

DIPOSAL OF EXCAVATED EARTH

Disposing of excavated materials occur, when

CUT (effective) – FILL = +ve

CUT < FILL

4.04.0

2.0

4 units – 6 units = 2 units imported

Cut

Fill

Import

2.0

CUT > FILL

4.06.0

2.0

6 units – 4 units = 2 units disposed

Cut

Fill

Dispose

Filling – Shrinkage Factor

1.2

4.86.0

1.5

Balance Cut & Fill Situation

To Fill 6 units – require 7.5 units

Cut - 6.0 units (4.8 units)

Imported - 1.5 units (1.2 units)

Imported Volume – covered in Filling rate

1.2

4.86.0

1.5

Computation of Filling Rate

6.0 m3 @ RM5.00 – RM30.00

1.5 m3 @ RM10.00 – RM15.00

Fill = RM45.00/6 m3 = RM7.50/m3

Rate for Natural Hard Materials (not rock)

JKR/SPJ/1988Specification for Roadworks published by Jabatan Kerja Raya, Malaysia

“Rock shall mean material found in ledges or masses in its original position which would normally have to be loosened either by blasting or pneumatic tools or, if excavated by hand, by wedges and sledge hammers. “

“ It shall NOT include material which can be loosened with a track-type tractor with mounted and drawn ripper of the following description:


PLANTS USED

Tractor Unit:Equiptment with a minimum weight of 20 tonnes and nett horse power rating of 200 brake horse power or more. The tractor unit is to be in good condition and operated by experienced personnel skilled in the use of ripping equipment

Ripping Unit:The ripper to be attached to the tractor shall be the most efficient parallelogram type recommended by the tractor or ripper manufacturer. The ripper shall have single shank in good working condition with sharpened cutting point.

ROCK CLASSIFICATION

ROCK (Grade I & II)

EARTH (Grade V & VI)

ROCK (Grade III & IV)

Fresh, monolithic, no fractures

or cracks

Cracks and fissures,

partially weathered

Totally weathered

THE PROBLEM

Class F – Earthwork ____________________________________________________________________________

ROCK (Grade I & II)

EARTH (Grade V & VI)

SEDIMENTARY– HARD MATERIAL

THE PROBLEM

On Site:In between the two extreme material on site (earth and rock) we have “ HARD MATERIAL”

which is not been clearly defined not included in the scope of specification which the Contractor has to excavate but not

priced accordingly the current practice, it is usually been paid

under normal excavation i.e. excavation in earth

Class F – Earthwork ____________________________________________________________________________

Resulting in:

Claim by the Contractor due to low productivity for

excavation in natural hard material (get paid for earth

excavation instead of excavation in rock)

MyCESMM SOLUTION

REDEFINE “ROCK”

ROCK or ARTIFICIAL HARD MATERIAL shall be material that requires the use of either hydraulic rock breaker, pneumatic tools or explosives. …..(MyCESMM)

DEFINE “ NATURAL HARD MATERIAL”

NATURAL HARD MATERIAL shall be material other than ROCK and ARTIFICIAL HARD MATERIAL that requires ripping and other specialisedequipment. …. (MyCESMM)

Class F – Earthwork __________________________________________________________________________

“The Contractor gets paid

For what he Did”

HARD MATERIAL/ROCK EXCAVATION shall required one or a combination of the following

methods:

Excavation using track excavator exceeding a mass of 44 tones and 321 BHP rating

Ripping using a tractor unit of minimum weight of 37 tones and 305 BHP rating and a ripper attached

Excavation using pneumatic tools Open blasting Controlled blasting

Class F – Earthwork __________________________________________________________________________

- Hard Material & Rock will have a common rate -


Conditions of contract

JKR 203A (Rev. 10/83)

• Clause 26(b) – BQ for Building Works based on SMM2

prepared by Institute of Surveyors, Malaysia

JKR 203A (2007)

• Clause 26.4 – BQ allowed to be based on CESMM 3 by ICE or

any Method

When disputes arise say concrete works which SMMs

governs?



SOME ISSUES IN USING SMM: 6

Too many SMMs, JKR 203A-2007 allows it but is it

practical?

Eg:

– Under 1 Item - Supply, lay, including excavation, valves, thrust

blocks, etc (CESMM3)

– Under 4 Items - Excavation (I), Supply & Lay including joints (2),

Valve (3), Thrust blocks (4) (Own Method)

– Under 7 Items - Excavation (I), Supply (2), Lay (3), Cutting of Pipes

(4), Joints (5), Valve (6), Thrust blocks (7) (Own Method)

2011 Wednesday, October 15, 2014 22

A Guide to MyCESMM

Malaysian Civil Engineering Standard

Method of Measurement (MyCESMM)

Library of Standard BQ Descriptions for

MyCESMM


FRAMEWORK OF MyCESMM

Malaysian Standard Method of Measurement (MyCESMM)


Section 1. Definition

Section 2. General Principle

Section 3.Application Of the Work Classification

Section 4.Coding and Numbering of Items

Section 5.Preparation of the Bill of Quantities

Section 6.Completion, pricing and use of the Bill of Quantities

Section 7.Method –Related Charges

Section 8.Work Classification: Class A – Class T


CONTENT

1.1 MyCESMM, BQ, Specification, COC etc.

1.2 condition of contract

1.3 refer 1.1

1.4 ref to section and paragraph

1.5- „Work’ =everything that the contractor has to do including liabilities, obligations and risks.

1.6 - “ site”


Section 1: Definitions

1.7 – expressedly required = stated

1.8 – BQ

1.9 – Daywork

1.10 – work classification

1.11 – original surface/ original grd level


Section 1: Definitions (cont’d)

Section 1: Definitions (cont’d)

1.12 – final surface

1.13- commencing surface

1.14 – excavated surface

1.15 – hyphen

1.16 – JKR

1.17 – LLM

1.18 – DOE

1.19 – BS and MS

1.20 – singular / plural


Section 2 : General Principles

The application and extent of MyCESMM Objective of MyCESMMObjectives of the Bill of Quantities


CLIENT

CONTRACTORCONSULTANT

Idea, concept

Functional, size, material

Estimated cost (range)

Time

confirmation

- conceptual design

- detailed design

- Specification (work & material)

- Bill of Quantities

- Estimated Cost

COST &

TIME

Section 2 : General Principles (cont’d)

MyCESMM_________________________________________________________________________________________________

ENGINEER(DESIGNER)

CONTRACTOR

WORK

What ? - Item Ref. / Description

Quantity ?

Coverage Rules ?

Size (dimension) ?

Where ?

When/Duration/Interval ?

Material Specification ?

Additional Descripion

Rule

Section 2 : General Principles (cont’d)

Section 3 : Application of the Work Classification

Item description - Work classification

-20 main classes; Class A- Class T

Each class comprises up to 3 division which classify work at successive level of detail – 8 descriptive features of work.

Units of meas.


DESCRIPTIONS FROM MyCESMM

Unit

3 1 Skid tank bund sum

2 Water treatment facilities sum

3 Sewage treatment facilities sum

4 1 pH nr

2 Total Suspended Solid (TSS) nr

5 3 Biochemical Oxygen Demand (BOD) nr

4 Chemical Oxygen Demand (COD) nr

5 Dissolved Oxygen (DO) nr

6 Escherichia Coli (E.coli) nr

7 Ammoniacal nitrogen nr

8 Oil and grease nr

9 Manganese

10 Iron

Water quality sampling and laboratory

testing

Water quality sampling and in-situ

testing

THIRD DIVISIONFIRST DIVISION SECOND DIVISION

Water quality control and monitoring

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

3 digit code number, B358, B3510???

B359.1 – Manganese, B359.2 - Iron

MyCESMM_________________________________________________________________________________________________

- Describes briefly the WORK component (not the TASK i.e. howthe Work should be done) to be executed by the Contractor

- (the details of work will be described in the TenderDrawing and coverage rule in the Preamble to BQ

and the MoM)

e.g: - „Excavate in cut to dispose unsuitable material below embankment max depth….‟

- „Mild steel bar of nominal diameter 20mm‟not as:

„Supply, deliver, cut, bent and fix mild steel bar of diameter 20mm‟

Section 3 : Application of the Work Classification (cont’d)

Section 3 : Application of Work Classification

(cont’d)

Rules to measurements

Each class work contains

◦ Measurements Rules,

◦ Definitions Rules,

◦ Coverage Rules,

◦ Additional rules

Application of rule – horizontal line


M1 D1 C1 A1

A2

a) not exceeding 10m D2 C2

b) 10 - 20m

c) 20 - 30m

d) 30 - 40m D3 A3

e) 40 - 50m C3

f) stated exceeding 50m

MEASUREMENT RULES DEFINITION RULES COVERAGE RULES ADDITIONAL DESCRIPTION RULES

The depth of boring, drilling,

sampling and testing shall be

measured form the

Commencing Surface as

Plant movement is shifting

of plant or equipment from

one borehole / test position to

the next position.

Small disturbed samples is

less than 5kg.

Item descriptions for

disturbed sample shall state

the weight of samples.

Item for plant movement

shall be deemed to include

dismantling from one position

and erecting at another

Item descriptions for block

sample shall state the size of

sample.

Sampling shall be deemed to

include transportation and

protection.

All field exploration and tests

shall be deemed to include

logging of daily field records.

Item description for water

sample shall state the

volume.

Hillslopes is more than 25

degrees.

Application of rule – horizontal line


(cont’d)

- Coverage Rule (preambles) briefly identify what to be included in the pricing eg : excavation in cut

e.g: a. Items for excavation to include disposal of excavated material, unless otherwise stated.

b. Items classified as excavate in cut to include transportation from source to place of fill or disposal‟

c. Items classified as excavation in cut to include the trimming and preparation of excavated surface.


(cont’d)

Section 4 : Coding & Numbering of Items

◦ One alphabet and not more than three digits.

E.g. Code I310 identifies an item as

Class I Concrete Works

1st Division 3 precast concrete

2nd Division 2 beams

3rd Division 0

Description: I310 - Precast concrete, in beams

*

9

0

Additional description


MyCESMM Coding structure Unit

2 1 Bored piles 1 Depth bored or driven m

2 Driven cast in-situ concrete

piles

2 Boring through rock m

3 Permanent casings m

Reinforcement straight bars nom

dia :

1 not exceeding 20mm t

2 exceeding 20mm t

3 Reinforcement helical bars t

4 concreted length m

5 Cut-off piles nr

THIRD DIVISIONFIRST DIVISION SECOND DIVISION

Piles


Class of

Works H 2 2 3

MyCESMM_________________________________________________________________________________________________

Bill of quantities = List of items with brief descriptions and estimated quantities -(the details of work described in the Tender Drawings, - coverage rule in the Preamble to BQ - and the MoM)

e.g: „Excavate cut to dispose unsuitable material below embankment max depth----.‟

Quantities- BQ quantity as a basis for estimating the rate - Final quantity to be re-measured

Section 5: Preparations of the Bill of Quantities

Section 5: Preparations of the Bill of Quantities

5.2 – 5.7 - Sections of BQ

SECTION A PREAMBLE

B WORKS ITEMS

Part 1 General Items

Part 2 Bridge No.1

Part 3 Bridge No.2

Part 4 Roadwork

Part 5 Tunnel

Part 6 Rest areas complex

C DAYWORK SCHEDULE

D GRAND SUMMARY


Section 5: Preparations of the BQ (cont’d)

5.9 - Extent of itemisation and descriptions – follow work classification BUT can further be itemized – due to special method of construction or cost

5.10 – 5.12 – Descriptions – dwgs, specs. , conditions of contract read in conjunction with the work classification

5.11 – detail from work classification may be omitted provided a reference is given eg. Drawing, specification, MS, BS etc.

5.12 – additional description may be given where appropriate.


5.8 - Headings and Sub heading

Section 5: Preparations of the BQ (cont’d)

5.13 – ranges of dimensions

5.14 – Prime cost sum

5.15 – Provisional Sum

5.17 – Quantities – nett , round up/down

5.18 – Units of measurement

5.19 – work affected by water

5.20 – state commencing surface and state the maximum depth for boring, excavation or driving.


Section 6 : Completion, Pricing and Use of the BQ

6.1 - Rates and prices shall be inserted in the rate column in Ringgit Malaysia with Sen inserted as decimal fractions of one Ringgit.

6.2 - Each part of the BQ shall be total and carried to the Grand Summary


15/10/2014 JKR Seminar 28-29 August 2013

MRC

Section 7: Method-Related Charges

Section 7: Method-Related Charges (cont’d)

7.1- Definition: the sum for an item inserted in the BQ by a tenderer.

Time-related charges –the cost is to be considered as proportional to the length of time taken to execute the work

Fixed charge- charges which is not a time related charge.

7.2- to cover items of works relating to:

his intended method of executing the works,

the cost of which are not to be considered as proportional to the quantities of the other items and

for which he has not allowed in the rates and prices for the other items.


Section 7: Method-Related Charges (cont’d)

7.3- Itemisation – follow Class A

7.4- Description – fully described extent of work covered (temporary/permanent)

Identify resources to be used

7.5 – Contractor shall not be bound by the method

7.6 – not subjected to re-measurement but shall be deemed to be priced for the purposes of valuation of variation

7.7 – payment – interim certificate

7.8 – contractor shall not be bound to adopt method –paid in full. Can only change when V.O exist.


MyCESMM MCESMM

A General Items

B Environmental Protection and Enhancement

C Traffic Management and Control

D Site Investigation Work

E Demolition and Site Clearance

F Earthworks

G Geotechnical Work

H Piling Work

I Concrete Work

J Brickwork, Blockwork and Masonry

K Timber Work

L Metalwork

M Building Work

N Painting Work

O Pipeworks

P Drainage Work

Q Roads and Pavings

R Tunnel Work

S Rail Tracks

T Miscellaneous Work

A General Items

P Environmental Protection and enhancement

Q Traffic Management and Control

B Soil Investigation Works

D Demolition and Site Clearance

E Earthworks

C Slope Stabilisation and Ground Treatment

J Piling Works

F Concrete Works

K Brickwork, Blockwork and Masonry

L Timber Works

M Metalwork

-

N Painting Works

I Pipeworks

H Drainage Works

G Roadwork

-

O Rail Tracks

R Miscellaneous Works

Wednesday, October 15, 2014

48

Section 8: Work Classifications

A Guide to MyCESMM


Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 50




WHAT?


WHAT?


WHERE


WHERE & WHAT

Library of Standard BQ Descriptions based on MyCESMM



THANK YOU.

READY TO APPLY MyCESMM? |


Documents

Salient Features of Mycesmm