SECTION B
PREAMBLE TO SCHEDULES OF QUANTITIES
1.
GENERAL
The General Conditions of Contract, the Special Conditions of Contract, the
Specifications (including the Project Specification) are to be read in
conjunction with the Schedule of Quantities.
2.
SCHEDULE OF QUANTITIES
The schedules comprise items covering the Contractor’s profit and costs of
general liabilities and of the construction of temporary and permanent works.
These Schedules are provisional and will be subject to re-measurement.
These Schedules are not to be used for ordering materials. The Quantities
reflected herein reflect the indicative value and extent of the Works. No
liability whatsoever shall be accepted by the Engineer or the Client for
materials incorrectly ordered.
3.
INSERTION OF RATES
The Tenderer is at liberty to insert a rate of his own choosing for each item in
the Schedules and his attention is drawn to the fact that the Contractor has
the right, under various circumstances, to payment for additional works
carried out and that the Engineer is obliged to base his assessment of the
rates to be paid for such additional work on the rates inserted in the Schedule
by the Contractor.
4.
METHOD OF MEASUREMENT
Descriptions in the Schedules of Quantities are abbreviated and the
Schedule have been drawn up generally in accordance with the latest issue
of the South African Bureau of Standards Standardised Specification for Civil
Engineering Construction. The method of measurement is as hereinafter
described notwithstanding any trade or customary usage. Should any of the
terms of the Schedule conflict with any requirement for measurement or
payment given in a specification, the requirement of the Schedule shall
prevail.
5.
RATES AND PRICES
The prices and rates to be inserted in the Schedules of Quantities are to be
the full inclusive prices to the Employer for the work described under the
several items. Such prices shall cover all costs and expenses that may be
required in and for the construction of the work described, and shall cover the
cost of all general risks, liabilities and obligations set forth or implied in the
documents on which the tender is based.
A price or rate is to be entered against each item in the Schedule of
Quantities, whether the quantities are stated or not. An item against which no
price is entered will be considered to be covered by the other prices or rates
in the Schedule.
Rates for demolition work shall be deemed to include for carting rubble off
site to a commercial dump.
6.
UNBALANCED RATES OR PRICES
A tender may be rejected if the unit rates or prices for some of the items in
the Schedule of Quantities are, in the Engineer’s opinion, unreasonable or
out of proportion, and the Tenderer fails within a period of seven (7) days
after having been notified by the Engineer to adjust the unit rates or prices of
such items, to make such adjustments.
7.
RATES ONLY ITEMS
The Tenderer shall fill in a rate opposite all items where the words “rate only”
appear in the “Quantity” column. The intention is that although no work is
foreseen under such an item and quantities are accordingly given in the
“Quantity” column are indicative, the tendered rate shall apply in the event of
work under this item being actually required. The Tenderer’s attention is
directed to provisions of Clause 6 of this preamble.
8.
ERRORS IN TENDERS
The Engineer reserves the right to correct arithmetical or other errors in the
extensions of rates and totals in the Tender. The Tenderer will be informed of
the effect of any corrections on his Tender Sum prior to the acceptance of the
Tenders. In no case will tendered rates be adjusted when correcting such
errors.
9.
SCHEDULES TO BE IN INK
The Tenderer must price each item in the Schedule of Quantities in ink.
Computer generated facsimiles of the Schedules will not be accepted.
10.
CROSS REFERENCING
Cross referencing of the “Pay Reference” clause in these Schedules is only
made to Measurement and Payment Clauses in the Specification. The
Tenderer is advised to study the complete specification carefully before
pricing the Schedules. Failure to do so, or any errors or omissions in the
cross referencing in these Schedules will not constitute a basis for any claim
arising therefrom.
11.
PRELIMINARY AND GENERAL PRICING
Where no rates are entered against the disestablishment item in the fixed
section of these Schedules of Quantities or the rate entered against this item
is, in the Engineer’s opinion, too low, the cost of disestablishment shall be
deemed to be 20% of the site establishment costs and the rates shall be
altered accordingly.
12.
VALUE ADDED TAX
Value Added Tax (VAT) shall be specifically excluded from the rates and
shall be added to the Contract Sum on the final summary page.
UNISA: Main Campus (Muckleneuk) Waterproofing of the
3rd Floors of the OR Thambo and Cas van Vuuren buildings
Item No
Payment
Refers
DESCRIPTION
Unit
Quantity
Rate
Amount
SABS 1200A Section 1:Preliminary and General
Fixed Charge Items
A
Allow for all fixed related items to comply
with the contract conditions
SUM
B
Establish facilities on site
SUM
c
Removalof Contractos site
establishment on completion
SUM
TIME RELATED ITEMS
Allow for compliance with all time related
conditions of contract
D
Operate and maintain facilities on site:
SUM
E
Supervision
SUM
FEAlURES REQUIRING SPECIAL
ATTENTION
F
PS7.2
Existing services
SUM
G
PS7.3
Dealing with dust
SUM
H
PS7.1
Operating conditions
SUM
I
PS7.4
Removal of rubbish and debris
SUM
SUM
K
Prevention o!water into building
Lifting of air-conditioning units and
moving of electricalcables
M
Contractor to comply with UNISA OHS
requirements
J
CARRIED FORWARD
PCSUM
SUM
50000
UNISA: Main Campus (Muckleneuk) Waterproofing of the
3rd Floors of the OR Thambo and Cas van Vuuren buildings
Item No
Payment
Refers
Description
Unit
Quantity
Rate
Amount
BROUGHT FORWARD
L
PS 7.10
Quality Control
SUM
The quality controlplan must contain
inter alia the following details:
Manufacture(s data sheets and
suitability statements.
Manufacture(s QC Plan.
Application Method Statement.
Batch Number Control.
Pre-Examination and Acceptance of
Substrate.
Surface Preparation QC method.
Repair procedure
Waterproofing procedure
CARRIED FORWARD TO SUMMARY
2
UNISA:Main Campus (Muckleneuk) Waterproofing of the
3rd Floors of the OR Thambo and Cas van Vuuren buildings
Item No
Payment
Refers
Description
Unit
Quantity
Rate
Amount
Section 2: Paved area and
screeds
A
Remove existing pavers to storage
mz
2800
B
Remove brokenpavers to spoiloff site
mz
400
c
Break out pavers that are embedded in
mortar to spoiloff site
mz
400
Fix defects in screed using a 9:3:1mix
SOmm thick
mz
800
Construct mortar fillets 50 x SOmm along
perimeter and up stand
m
1550
F
Reinstate pavers from storage onto
major rings
mz
2800
G
Supply and install new pavers onto major
rings to match existing
mz
800
H
Demolish existing door ramp to spoil off
site
mJ
1
I
Rebuild door ramp to match existing
using 20Mpa concrete
mJ
1
J
Rerrove flower pots to storage and
replace afterwards
no.
8
K
Remove concrete bins to storage and
replace afterwards
no.
10
Build mortar up stand under window
frame 100 x 100mm using 9:3:1 mix
m
30
0
RBP4.1.3
E
RBP4.2
L
RBP4.1.3
CARRIED FORWARD TO SUMMARY
3
UNISA: Main Campus (Muckleneuk) Waterproofing of the
3rd Floors of the OR Thambo and Cas van Vuuren buildings
Item No
Payment
Refers
Description
Unit
Quantity
m2
3600
Rate
Amount
Section 3:Water11roofing under
11aved section
Strip existing waterproofing to spoil
A
B
Prime slab with a bituminous primerin
RBP4.4.1 accordance with the manufactures data
sheets
m2
3600
c
Waterproof roof using a double layer
RBP4.4.2 minimum 1.6mm rubber bitumen
membrane fully bonded
m2
3600
D
AW6
Counter flash waterproofing using an
acrylic waterproofing (300mm wide)
along the window frames as per drawing:
WLA-ORTCW:005
m
1100
E
RBP4.4.3
Temninate waterproofing into fullbores as
per drawing:WLA-ORTCVV:002
no.
60
F
Temninate waterproofing onto pipe
RBP4.4.3 protrusions as per drawing:WLAORTCW:003
a) 50mm diameter
no.
12
b) 100mm diameter
no.
10
All exposed waterproofing along the
parapet walls and up stands to be
waterproofed with a 300mm wide rubber
bitumen mineralchip finish as per
drawinQ: WLAORTCVV:001
m
450
Supply and install geofabric to protect
waterproofing as per specification
m2
3600
I
Contractor to allow for temporary
waterproofing
m2
360
J
Test all fullbores
no.
60
G
H
RBP4.4.4
CARRIED FORWARD TO SUMMARY
4
UNISA: Main Campus (Muckleneuk) Waterproofing of the
3rd Floors of the OR Thambo and Cas van Vuuren buildings
Item No
Payment
Refers
Description
Unit
Quantity
Rate
Amount
Section 4:Watemroofing of flat
roof section
A
Remove ballast to spoiloff site
m3
20
B
Strip existing waterproofing to spoil
m2
250
Fix defects in screed using a 9:3:1 mix
50mmthick
m2
50
Construct mortar fiHets 50 x 50mm along
perimeter and up stand
m
100
m2
250
c
RBP4.1.3
D
RBP4.2
E
Prime slab with a bituminous primer in
RBP4.4.1 accordance with the manufactures data
sheets
F
RBP4.4.2
Waterproof roof using minimum 1.6mm
plain rubber b umenmembrane followed
by a 1.6mm mineralchip rubber bitumen
layer fuHy bonded
m2
250
G
AW6
Counter flash waterproofing using an
acrylic waterproofing (300mm wide)
along the window frames as per drawing:
WLA-ORTCW:005
m
30
H
RBP4.4.3
Terminate waterproofing into fullbores as
per drawing:WLA-ORTCW:002
no.
10
I
Terminate waterproofing onto pipe
RBP4.4.3 protrusions as per drawing:WLAORTCW:003
a) 50mm diameter
no.
2
b) 100mm diameter
no.
3
J
All exposed waterproofing along the
parapet walls and up stands to be
waterproofed with a 300mm wide rubber
bitumen mineral chip finish as per
drawinQ: WLAORTCVV:001
m
70
K
Contractor to allow for temporary
waterproofing
m2
50
L
Test all fullbores
no.
10
CARRIED FORWARD TO SUMMARY
5
UNISA: Main Campus (Muckleneuk) Waterproofing of the
3rd Floors of the OR Thambo and Cas van Vuuren buildings
Item No
Payment
Refers
Description
Unit
Quantity
Rate
Amount
Section 5:Joint sealant
A
RWS5
Strip existing waterproofing and joint
sealant from expansion joints to spoil
m
60
B
RWS5
Sealexpansion joints according to
specification and drawing:
WLAORTCW:004
m
60
c
RWS5
Strip existing joint sealant from parapet
walls to spoil(15mm) wide
m
2000
D
RWS5
Seal joints in parapet walls (15mm) wide
including a baclling cord
m
2000
E
RWS5
Ream out existing joint sealant from
parapet walls to spoil(25mm) wide
m
150
F
RWS5
Seal joints in parapet walls (25mm) wide
including backing cord using Dow coning
m
150
888
CARRIED FORWARD TO SUMMARY
6
UNISA: Main Campus (Muckleneuk) Waterproofing of the
3rd Floors of the OR Thambo and Cas van Vuuren buildings
SUMMARY
SECTION
AMOUNT
SECTION 1: PRELIMINARIES AND GENERAL
SECTION 2: PAVED AREA AND SCREEDS
SECTION 3:WATERPROOFING UNDER PAVED
SECTION
SECTION 4: WATERPROOFING ON FLAT ROOF
SECTION
SECTION 5:JOINT SEALANTS
Sub-Total
Add: Contingency at 10% (2 - 5)
Sub-Total
Add: VAT@ 14%
TOTAL TENDERED VALUE
7