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
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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.
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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??
SOME ISSUES IN USING SMM : 2
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)
SOME ISSUES IN USING SMM : 3
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:
SOME ISSUES IN USING SMM : 4
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 -
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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 : 5
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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
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FRAMEWORK OF MyCESMM
Malaysian Standard Method of Measurement (MyCESMM)
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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
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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”
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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
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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
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Section 2 : General Principles
The application and extent of MyCESMM Objective of MyCESMMObjectives of the Bill of Quantities
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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.
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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
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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
Section 3 : Application of Work Classification
(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.
Section 3 : Application of Work Classification
(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
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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
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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
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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.
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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.
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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
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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.
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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.
Wednesday, October 15, 2014 47
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
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Section 8: Work Classifications
A Guide to MyCESMM
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Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 50
Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 51
Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 52
Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 53
WHAT?
Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 54
WHAT?
Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 55
WHERE
Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 56
WHERE & WHAT
Library of Standard BQ Descriptions based on MyCESMM
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Wednesday, October 15, 2014 MyCESMM- JKR 28-29 July 2013 58
THANK YOU.
READY TO APPLY MyCESMM? |
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