Download - Road Project Lab Assesment Report
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Upgrading/Construction of Chipata to Mfuwe (D104 &791) 104 km in Eastern Province
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Laboratory Assessment Report Page 1
TABLE OF CONTENTS
1.0 INTRODUCTION .................................................................................................................... 2
2.0 ASSESSMENT ....................................................................................................................... 3
3.0 FINDINGS .............................................................................................................................. 4
4.0 CONCLUSION ........................................................................................................................ 6
5.0 APPENDIX ............................................................................................................................. 7
Selected laboratory Photographs ........................................................................................... 7
Site-assessed equipment list from SPA ........................................................................... .. 13
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1.0 INTRODUCTION
The Government of the Republic of Zambia implemented the Upgrading of the Chipata to
Mfuwe Road Project in Eastern Province, under the recurring annual work plans. The road had
initially not been engineered and consisted only of a thinly graveled wearing course through-
out, and two surfaced sections each of less than 2km in length. The full-length-upgrade
engineering design consisted of; widened carriageway to 10.2m (2 lanes), double bituminous
surface dressing type on a geometrically designed alignment. The road route runs in the North-
Westerly direction from Chipata, via settlement areas of Kalichelo, Jumbe, Chisengu and
Mambwe until the national park resort of Mfuwe, approximately 101km.
The Construction Contract was awarded by RDA to Sable Transport & Construction Limited with
BCHOD Consulting Engineers being engaged as the Design/Supervision Engineer and Project
Managers.
During the 22nd
Technical Meeting of the contracted parties held on 25th
June 2012 at the
Resident Engineers Office in Chipata, concerns were raised as to the appropriateness and
adequacy of the provided laboratory for work quality control. The Laboratory, situated at the
Contractors Chisengu Camp, was being currently utilized under a joint Engineer/Contractor
arrangement as there was no exclusive laboratory for the Project Managers Staff.
The Project Manager at the above technical meeting issued an instruction to Project Managers
staff to compile a report on the laboratory situation.
The report herein is a response to that instruction and was prepared by the Assistant Resident
Engineer collaborating with the Engineers Laboratory Technician and the Contractors
Laboratory Manager for consensus.
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2. ASSESMENT
The assessment of the laboratory was based on the Contract Specifications of Particular
Application Clause B1402 Part (c) Laboratories and Clause B1402 Part (c) xvi Provision of
laboratory equipment. The lists of equipment prescribed in the SPA were availed to the
assessors, and an inspection of the facility carried out, with respect to availability and condition
of each equipment piece, see Appendix.
Secondly the menu of the routine tests that were specifically being carried out on Works for the
Project was identified and groups of pieces of laboratory equipment relevant only to each those
particular procedures were also assessed in terms of availability and condition.
The findings of the exercise are summarized on the proceeding page.
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3. FINDINGS
The results of the investigation were summarized in two parts, the first one being a categorized
table of the provided laboratory equipment compared against the prescribed levels in the SPA
and the second, an outline of the routine tests that were being carried out on the works with an
attached comment on the adequacy of the provided equipment as per investigation.
TABLE 3.1: LABORATORY EQUIPMENT SITUATION AGAINST SPA
TEST CATEGORY QUANTITY IN SPA QUANTITY PROVIDED
(No.)
QUANTITY PROVIDED
PERCENTUM
SIEVE ANALYSIS 239 63 26.4 %
ATTERBERG LIMIT171 34 19.8 %
MAXIMUM DRY
DENSITY/CBR
567 79 13.9 %
FIELD DENSITY273 10 3.7 %
CONCRETE177 7 5.3 %
ASPHALT10 4 40.0 %
GENERAL-TO VARIOUS
TESTS ABOVE
16579 3 -
OTHER-GENERAL37 1 2.7 %
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TABLE 3.2: ROUTINE TESTS ON WORK VERSUS CONDITION OF EQUIPMENT
TEST AVAILABLE EQUIPMENT CONDITION
MDD SATISFACTORY
PI SATISFACTORY
GRADING ON GRAVEL UNRELIABLE DUE TO DAMAGED 75 MICRON SIEVE
CBR UNRELIABLE DUE TO MISSING .0127MM GAUGE AND
UNAUTHENTICATED CALIBRATION
UCS SATISFACTORY
DUST CONTENT ON CHPPING STONE UNRELIABLE DUE TO DAMAGED 75 MICRON SIEVE
FLAKINESS INDEX AS SPECIFIED
ALD AS SPECIFIED
Further on the provided building at Chisengu did not meet clause B1402 Part c (i) and (ii) of the
SPA in terms of size and facilities prescribed therein.
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4.CONCLUSION
The provided laboratory did not meet the specification for the Contract in terms of quantities
and standard.
Therefore, there was need to equip the laboratory accordingly, at least to satisfactorily
acceptable levels, so as to build and subsequently maintain confidence in all the parties and
stakeholders that the quality function was being carried out objectively on the Project and to
acceptable standards.
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APPENDIX
Selected laboratory Photographs
Laboratory building with office on the left and main lab room on right
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Reverse view of lab with main room on left and small lab room on right
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Inside main laboratory room
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Inside small laboratory room
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CBR Machine
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Compression strength/UCS Machine
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Site-assessed equipment list from SPA