Sunday, January 10, 2010

CONTRACT MANAGEMENT IN BUILDING PROJECTS

In contract the essential ingredient to manage are time,cost, quality and safety.
There are some factors that delays delivery.
Time delay

1 contractor limited cause
2 material related cause
3 labour and equipment
4 client
5 contract
6 consultancy
7 external
Cost

factors
flucuation
change in exchange rate
cash flow of project
intrest rate
wastage
cost of new works
project labor cost

Quality
factors
clients
volume of works
breif of client and decision making

Safety
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Thursday, November 5, 2009

FLOORS

Floors can be defined as the structural part of a horizontal supporting element.

FUNCTION OF A FLOORS

1, Withstand load impose on it

2, Prevented the growth of vegetation

3, Prevention of Damp

4, Sound and Heat installation requirement

5,Acceptable floor finishes

TYPES OF FLOORS

a, Solid ground

b, Raised or suspended ground floor.

Tuesday, October 6, 2009

DIFFERENT BETWEEN ASPHALT AND BITUMEN

Asphalt is a sticky, black, highly viscious liquid or semi-solid that is present in most crude petroleum.
Bitumen is a mixture of origanic liquid that are highly viscous, black, sticky entirely soluble in carbon disulfide.
Primary different between asphalt is made by the mixing aggregate with bitumen.

PROPERTIES OF ASPHALT
1, Highly compartibility between the polymer asphalts and compound

2, Flexibility to low temperatur

3, Supeiior resistance

4, Durability

USES

ASPHALT

Majorly in road constructions

BITUMEN
Paving roads

Bitumious waterproofing

Roof felt


Monday, September 28, 2009

PHYSICAL PROPERTIES OF MATERIAL

STRENGHT: Ablity of materials to resist deformation

ULTIMATE TENSILE STRENGHT; Maximum resistance to fracture

YEILD STRENGHT; Stress at which perdetermined amount of permanent deformation

MALLEABILITY; Percentage enlongation reported in a tensile test.
is also define as maximum enlongation of the guage lenght divided by the orignal guage last.
Ability of material to enlonged in tension.
DUCTILITY; Ability of material to deform easily upon the application of a tensile force

TOUGHNESS; Is describe the way a material reacts under sudden impacts

HARDNESS; Property that enable materials to resist plastics deformation penetration indentation and scratching.

Friday, September 18, 2009

UNIQUE ROLE OF A BUILDER

Studying production information

Build ability/ maintainability analysis of production informations

Preparing Builders' Documents


a, Construction Methodolgy
b, Construction Programmes
c, Project Quality Management Plan
d, Early Warning System Chart
e, Information Requirement Schedule


Implementation and Montoring Builders' Documents

Assessing Workmanship i.e Skilled and Unskilled

Assessing organization setup of a constructor

Profunding solution to technical problems

Thursday, September 17, 2009

BUILDING

Building is structure that provides shelther and mean of other usage.

Types of building

1, Residential

2,Commercial

3,Indusrial

To construct a building you need professionals in the building industries.
Professionals

1, Architects
2, Quantity Surveyors
3, Builders
4, Engineers
a, Structural
b, Mechnical
c, Electrical/Electronic