Read MALAYSIAN CIVIL ENGNEERING STANDARD METHOD OF MESUREMENT (CESMM) text version

SEMINAR on Standardising and Enhancing Bills of Quantities for Civil Engineering Works using Malaysian Standard Method of Measurement (CESMM)

KAMALALDIN ABD. LATIF JKR. MALAYSIA

31st

MARCH 2010

EQUATORIAL BANGI

CONTENT

· OVERVIEW · CLASS E ­ EARTHWORK · CLASS P ­ ENVIRONMENTAL PROTECTION · CLASS G ­ ROADWORKS

O1- CLIENT ­ CONSULTANT - CONTRACTOR

CLIENT Idea, concept confirmation Functional, size, material Estimated cost (range) Time CONSULTANT - conceptual design - detailed design - Specification (work & material) - Bill of Quantities - Estimated Cost

OVERVIEW ­ CESMM_________________________________________________________________________________________________

CONTRACTOR

COST & TIME

O2 - PRINCIPLE OF BILL of QUANTITIES

ENGINEER(DESIGNER) CONTRACTOR WORK What ? - Item Ref. / Description Quantity ? Coverage Rules ? Size (dimension) ? Where ? When/Duration/Interval ? Material Specification ?

OVERVIEW ­ CESMM_________________________________________________________________________________________________

Additional Descripion Rule

O3 - PRINCIPLE OF BILL of QUANTITIES

WHAT? -Q3 - Carry out routine maintenance WHERE? SIZE / DIMENSION - on existing road - within the limit of work

DURATION

- for the duration of the contract period

OVERVIEW ­ CESMM_________________________________________________________________________________________________

O4 ­ BILL of QUANTITIES

Item Description - Describes briefly the work to be executed by the Contractor (the details of work will be described in the Tender Drawing and coverage rule in the Preamble to BQ and the MoM) e.g: `Excavate unsuitable material below embankment or below Formation in cuttings as shown in the drawing or as per specification to disposal areas within the R.O.W as approved by the S.O.'

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

OVERVIEW ­ CESMM_________________________________________________________________________________________________

O5 ­ PREAMBLE to BQ

- Describes briefly the work to be executed by the Contractor (the details of work will be described in the Tender Drawing and items coverage in the Pramble to BQ and the MoM) e.g: `Excavate unsuitable material below embankment or below Formation in cuttings as shown in the drawing or as per specification to disposal areas within the R.O.W as approved by the S.O.'

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

OVERVIEW ­ CESMM_________________________________________________________________________________________________

O6 ­ ITEM DESCRIPTION

- Describes briefly the WORK component (not the TASK i.e. how the Work should be done) to be executed by the Contractor - (the details of work will be described in the Tender Drawing and coverage rule in the Preamble to BQ and the MoM) e.g: - `Excavate unsuitable material below embankment or below Formation in cuttings as shown in the drawing or as per specification to disposal areas outside the R.O.W as approved by the S.O.' - `Mild steel bar of nominal diameter 20mm' not as: `Supply, deliver, cut, bent and fix mild steel bar of diameter 20mm'

OVERVIEW ­ CESMM_________________________________________________________________________________________________

O7 ­ MEASUREMENT RULE

Sets out the CONDITION under which the Work will be measured and the METHOD by which the Quantities shall be computed in accordance with paragraph 5.17 Section 5: Preparation of the Bill of Quantities 5.17 : `All measurement shall be taken nett otherwise stated in the measurement rules of the CESMM. No allowance shall be made for bulking, shrinkages or wastages. Quantities can be rounded where appropriate but common sense must be applied. The total quantity and the effect on its rounding off must be considered. Where unavoidable, fractional quantities should be given to one decimal place only'.

OVERVIEW ­ CESMM_________________________________________________________________________________________________

O8 ­ SPECIFICATION

Gives the requirement of the work wrt material use & method statement

"Unsuitable material shall be excavated to such depth and over such area as directed by the S.O"

OVERVIEW ­ CESMM_________________________________________________________________________________________________

O9 ­ CONSTRUCTION DRAWING

indicates shapes & dimension - length - breadth - depth as a basis for the Tenderer to calculate the rates for construction the final dimension will be determined base on actual requirement on site

OVERVIEW ­ CESMM_________________________________________________________________________________________________

CLASS E - EARTHWORK

CESMM (UK)

- excavation in stages eg. `excavate from 0m to 1.5m depth from 1.5m to 3.0m depth a.s.o - 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' - item description or drawing should indicate the depth of excavation to facilitate computation of rate by the contractor

CESMM (M)

Class E ­ Earthwork __________________________________________________________________________________

CLASS E - EARTHWORK

Rule M1 In accordance with Paragraph 5.17, the quantities of earthwork shall be computed nett using dimension from the Drawings with no allowance for bulking, shrinkages or wastages. Where boundaries between different materials are not shown in the Drawings, measurement shall be made on Site.

Class E ­ Earthwork __________________________________________________________________________________

CLASS E - 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

Class E ­ Earthwork __________________________________________________________________________________

RULE 1

CUT < FILL Import 2.0 2.0

4.0

4.0

4 units ­ 6 units = 2 units imported

Fill Cut

RULE 1

CUT > FILL Dispose 2.0

6.0

4.0 6 units ­ 4 units = 2 units disposed

Fill Cut

RULE 1

Filling ­ Shrinkage Factor

1.2

1.5

Balance Cut & Fill Situation 6.0 4.8 To Fill 6 units ­ require 7.5 units Cut - 6.0 units (4.8 units) Imported - 1.5 units (1.2 units)

RULE 1

Imported Volume ­ covered in Filling rate

1.2

1.5

Computation of Filling Rate 6.0 4.8 6.0 m3 @ RM5.00 ­ RM30.00 1.5 m3 @ RM10.00 ­ RM15.00 Fill = RM45.00/6 m3 = RM7.50/m3

CLASS E - EARTHWORK

BACK ISSUES: Defination for ROCK JKR/SPJ/1988 Specification 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:

Class E ­ Earthwork (CESMM)__________________________________________________________________________

DOZER & RIPPER UNIT

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.

Class E ­ Earthwork (CESMM)__________________________________________________________________________

ROCK CLASSIFICATION

EARTH (Grade V & VI)

Totally weathered

ROCK (Grade III & IV)

Cracks and fissures, partially weathered Fresh, monolithic, no fractures or cracks

ROCK (Grade I & II)

Class E ­ Earthwork (CESMM)____________________________________________________________________________

THE PROBLEM

EARTH (Grade V & VI)

SEDIMENTARY­ HARD MATERIAL

ROCK (Grade I & II)

Class E ­ Earthwork (CESMM)____________________________________________________________________________

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

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)

Class E ­ Earthwork (CESMM)____________________________________________________________________________

THE SOLUTION

REDEFINE "ROCK" ROCK or ARTIFICIAL HARD MATERIAL shall be material that requires the use of either hydraulic rock breaker, pneumatic tools or explosives. .....(CESMM) DEFINE " NATURAL HARD MATERIAL" NATURAL HARD MATERIAL shall be material other than ROCK and ARTIFICIAL HARD MATERIAL that requires ripping and other specialised equipment. .... (CESMM)

"The Contractor gets paid For what he Did"

Class E ­ Earthwork (CESMM)__________________________________________________________________________

POINT TO TAKE NOTE

JKR TECHNIAL DIRECTIVE (ARAHAN TEKNIK) has redefine the term COMMON EXCAVATION, HARD MATERIAL and ROCK EXCAVATION (Draft) COMMON EXCAVATION Common Excavation shall mean excavation in any material either than hard material/rock excavation HARD MATERIAL/ROCK EXCAVATION Hard material/rock excavation shall mean excavation in any material that cannot be loosened by an excavator with a minimum mass of 44 tons and a minimum rating of 321 BHP. The excavator shall be in good condition and operated by an experience personnel skilled in the use of excavator equipment.

Class E ­ Earthwork (CESMM)__________________________________________________________________________

POINT TO TAKE NOTE.......cont.

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

- Hard Material & Rock will have a common rate -

Class E ­ Earthwork (CESMM)__________________________________________________________________________

COMPROMISE

ADDITIONAL DESCRIPTION RULE

Item description for EXCAVATION IN NATURAL HARD MATERIAL and ROCK shall state the method of excavation where appropriate ...... A4

This clause will cater for Designer's requirement to dictate the method of construction where specific need prevails

Class E ­ Earthwork (CESMM)__________________________________________________________________________

CLASS P ­ ENVIRONMENTAL PROTECTION AND ENHANCEMENT

Is of great concern lately in road projects, especially those road alignments traversing through environmentally sensitive areas Quality & adequacy the mitigating measures varies from project to project depending on amount allocated for Environmental and Enhancement method of construction adhererance to the specification by the contractor during construction concise statement of Owner's requirement in the Bill

Class P ­ Environmental Protection & Enhancement (CESMM)____________________________________________________

EIA REPORT

(MITIGATION MEASURES)

DESIGNER

DRAWING & SPECS & BILL of QUANTITIES

HOW WHAT ? ? ENVIROMENTAL MANAGEMENT WHO PLAN ? WHEN?

CONTRACTOR

Class P ­ Environmental Protection & Enhancement (CESMM)______________________________________________________________

OLD PRACTICE

itemised under Preliminaries description of Bill too general, up to the Contractor's imagination in determining the coverage required for the Environmental Protection & Enhancement no indication as to what the work items included under this Class allocated sum is Lump Sum (no detailed breakdown of work given)

e.g.

`To carry out environmental protection works according to the existing laws and regulations'

Class P ­ Environmental Protection & Enhancement (CESMM)______________________________________________________________

CURRENT PRACTICE

separate Bill for Environmental Protection & Enhancement work items to be indicated item description has to be clear and concise allocated as Provisional Sum or can be subjected to re-measurement of quantities at the end of contract

Class P ­ Environmental Protection & Enhancement (CESMM)______________________________________________________________

ITEMS COVERAGE

7 items coverage:

Appointment of Environmental Officer Preparation of Environmental Management Plan (EMP) Pollution Control Measures Preservation of Flora Preservation of Fauna Environmental Monitoring Programme Environmental Audit

Class P ­ Environmental Protection & Enhancement (CESMM)______________________________________________________________

SAMPLE BQ

- CLASS P ENVIRONMENTAL PROTECTION AND ENHANCEMENT

Code

DESCRIPTION CLASS P: ENVIRONMENTAL PROTECTION AND ENHANCEMENT

Unit

Qty.

Rate

Amt.

P1 0 0

APPOINTMENT OF ENVIRONMENTAL OFFICER Appoint an Environmental Officer for the duration of the contract period. PREPERATION OF ENVIRONMENTAL MANAGEMENT PLAN (EMP) To prepare the Environmental Management Plan (EMP) according to the guideline produced by the Department of Environment (DOE). POLLUTION CONTROL MEASURES Water Quality Control, Silt Fence Supply and install 1.0m height silt fence including non-woven geo-textile and wooden post with dimension as shown in the drawing or as directed by the S.O. Gabion Wall To construct gabion earth retaining wall of dimension as shown in the drawing using block stones of size 150mm Sediment Basin To construct sediment basin of the dimension: 7m x 4m x 2m 15m x 4m x 2m Silt Trap To construct Silt Trap of the following dimensions: 2m x 3m 4m x 6m

manmonth

P200

sum

P300 P311

m2

P312

m3

P313

nr nr

P314

nr nr

Code P321

DESCRIPTION Air Quality Control,Tyre Washing Facilities Supply portable water jet including operators, water tank and other necessary equipment needed to carry out the cleaning tyres of vehicles at the exits of the worksite Water Browser Truck Supply Browser Truck to carryout water spraying 3 times a day along existing road and near settlement as directed by S.O Lorry Wash Trough To construct Lorry Wash Trough of dimension: 2m x 5m x 250mm deep nr

Unit

Qty.

Rate

Amt.

nr

P322

nr

P323

P331

Noise Control, Noise Barrier Supply and install 1.0m height concrete reflective type noise barrier with dimension as shown in the drawing or as directed by the S.O Vibration Control To carryout vibration control at the following locations: a. Hospital Besar Kuala Terengganu m2

P340

sum

Code P411

DESCRIPTION CONSERVATION / PRESERVATION Preservation of Flora,Floral Survey Report Conduct Flora Survey and prepare 30 copies of Floral Survey Report according to the format as set in Appendix Floral Conservation Plan Prepare Floral Conservation Plan according to the format as set in the Appendix Relocation of Trees a) To relocate the following flora species to the approved location within the construction site: 1. Tongkat Awang 2. Tualang Salak b) To relocate the following flora species to the Arboretum at Pusat Penyelidekan Tumbuhan Hutan di Kuala Berang, Terengganu 1. Kemuning Minyak 2. Kemuning Kuning

Unit

Qty.

Rate

Amt.

sum

P412

sum

P413

nr nr

nr nr

Code P42 P421

DESCRIPTION Preservation of Fauna Fauna Survey Report Conduct Fauna Survey and prepare 30 copies of Fauna Survey Report according the format as set in Appendix Relocation of Fauna To relocate the following fauna species to Taman Negara Belum, Ulu Perak, Darul Redzuan: 1. Gajah 2. Harimau Conservation of Archeological / Heritage

Unit

Qty.

Rate

Amt.

sum

P422

nr nr

P423

Information

MALAYSIAN CIVIL ENGNEERING STANDARD METHOD OF MESUREMENT (CESMM)

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