college of technology

1. 1
Construction Technology and
Management Department
College of Engineering and
Technology

2. Course out line
Course Title: Specification and Quantity surveying
Course Number: COTM 3211
Credit Hours: 3
Academic year: 2016/17, Semester II
Pre-requisites : Building construction II
Program: III Year Regular BSc, Construction Technology and Management
Instructor: Sintayehu G.

3. cont’d
Chapter 1. Introduction
◦ General Introduction
◦ Stages in Construction
Chapter 3. Specifications
◦ Introduction
◦ Types of Specifications
◦ Specification Writing

4. cont’d
Chapter 4. Quantity surveying
◦ Introduction
◦ Materials Take Off Preparation and Measuring of
Quantities
◦ Quantity Take Off
◦ Types of Takeoff
Chapter 5. project cost estimation
◦General
◦Types of costing or estimating

5. cont’d
Evaluation
Quiz & assignment .
…………...20%
Test
……………………………….….
..10%
Project…………………………
….....30%
Final
Exam……………………..……
40%
References
B.N.Dutta, “Estimating costing
in civil Engineering”
W.J. Hornung, “Estimating
Building Construction Quantity
Surveying”
MoWUD, “Standard condition
of contract for construction of
civil work” Handout

6. 6
COTM 3211 –Specification and
Quantity Surveying

7. Chapter Outline
1. General introduction
2. The main players in the CI
3. Stages construction process
7

8. 1.1. General Introduction
Construction Industry is an industry which is involved in the planning,
execution and evaluation of all types of civil works.
CI Categories:
 Transport and Communication (Road, Railway, Airway, and
Telecommunication)
 Water and Energy Works; and
 Buildings and Other Physical Infrastructures
CI is among the leading industry in producing employment and
contribute to the overall national development (Current situation of
Ethiopia)
CI specially in developing countries like ETHIOPIA consumes much of
the national budget. (Almost 60%)

9. Ethiopian Construction Recent Trends
Roads Projects ( 43 Billion Birr in 5 yrs)
 Many road projects under the federal & regional state Road authorities
 Road to connect Addis to Adama
Hydropower and Wind energy Projects
 The Grand Ethiopian Renaissance Dam Project
 GilgelGibe I, II, and III, Tekeze, Tana Beles, Fincha-Neshe, etc.
 Wind energy (around Mekele& Adama)
Buildings projects
 Housing projects at federal & regional state level ( 400,000 houses ( 16 B Birr)
 The construction of universities and Many health centers
Water Supply and Irrigation projects ( 10.63 B Birr)
 Kessem, Tendaho, Omorate, Gidabu, FinchaSFEP, Ribi-Megech, etc.
Railway
 Addis Ababa city rail ways ( supposed to begin service shortly)
In the Private Sector
 Residential and commercial Buildings

10. The Client
The Consultant
The Contractor
Insurance Companies
Banks
Suppliers
Permitting Agencies
Public
10
The main players in the construction
industry are:

11. Assignment No.1
To be submitted individually in hard copy not more than three
pages
Study and write the role of the main participant in construction
industry
Submission date: One week as of today:
F) Nov, 17, 2014.
E) Nov, 14, 2014.
A) Nov, 14, 2014.
CE- 5121 –Contract, Specification and
Quantity Survey
11

12. Resources for the Construction Industry
Human Resources / Labour or Workmen
Financial Resources / Fund
Information Resources
Physical Resources such as Materials (55-70%), Equipment and Other
Assets
Services and Management.
12

13. 1.1.1. Stages in Construction
Inception and feasibility
Planning and Design
Tendering Stages
Bid Evaluation
Award of Contract
Construction Stage
Commissioning and Acceptance
◦ Provisional Acceptance
◦ Final Acceptance
13

14. Inception and Feasibility
At this stage, the owner will hire consultant to formally design and
develop the concept into a practicable project.
Planning and Design Stage
At this stage, the consultant plans and designs the project based on the
owner’s requirement and the possible constraints.
Tendering stage
At this stage contractors are invited to offer their best technical and
financial offers as per the conditions and specifications depicted in the
contract document.
14
cont’d

15. Bid Evaluation /Evaluation of Tenders
The bids are evaluated based on:
Compliance with the contractual terms and conditions
Correction of bid prices
Detailed analysis
Award of Contract
After the negotiations have been successful, the contract will be
awarded to the successful contractor. The formal steps might include;
Writing a letter of acceptance
Writing the letter to proceed with the works
Performance bond: 10% a guarantee that will do the job as per agreed
15
cont’d

16. Construction stage
Here is where the actual execution of the works takes place as per
scheduled.
Commissioning and acceptance
Commissioning a process whereby the contractor makes sure that all
installed mechanical or electrical parts are operational. During
commissioning, therefore all such parts are run in the presence of the
client or his representative as per the conditions agreed.
Acceptance has two stages:
1. Provisional acceptance
2. Final acceptance
16
cont’d

17. 1. Provisional acceptance:
The client accepts the completed works on provision basis for a one
year period.
During this period, all payments except retention are paid.
The other option is to release the retention money and require for a
bank or insurance security.
2. Final acceptance:
At this stage the owner completely accepts the works executed and
the retention money is released to the contractor.
But, if the client found out some construction default during this
period, he can oblige the contractor to work out that default or the
client himself works it out from the retention money.
17
cont’d