Definition:
An aggregates is small particles that when combined with cement and sufficient water ,binds together and forms the body of the concrete or mortar.
sand or small stones being typical example.
Question-1
What is sand?
Answer:
Sand is a natural materials collected from the river shore or dug in a pit which are used together with cement,or lime with sufficient water added to make it pliable for building walls and plasterwork.
Question-2
What are the small stones or coarse aggregate?
Answer:
Small stones or Coarse aggregate is small stones or crushed stones used together with sand, cement and sufficient water added for casting foundations,beams,slab etc.and this is called a concrete.
This is brief detail explanation of aggregate.
Saturday, April 4, 2009
Detail functions of the Datum peg
Question -1
What is a Datum peg?
Answer;
This is a peg fixed at the corner of a site in which all the levels at the site are taken.
Question -2
What are materials used for the datum peg?
Answer:
The Pegs are made of timber or reinforced iron rods casted at base with concrete to avoid dislodgement or interference of movement of people.
This peg shall remain an removed for any further extension of the site and maintenance.
Question -3
How shall you take the levels from the datum peg?
Answer:
By the use of the line level, together with the line fixed to the datum peg to run to the other side or corner of the site and checking the line level (reading the spirit level) to find the level of the site.
Question -4
Why do you need the site to be level?
Answer:
For building construction purposes,all construction sites need to be level in order to set up a stable ground and avoid soil erosion and also bring a level base for the building foundation to commence.
What is a Datum peg?
Answer;
This is a peg fixed at the corner of a site in which all the levels at the site are taken.
Question -2
What are materials used for the datum peg?
Answer:
The Pegs are made of timber or reinforced iron rods casted at base with concrete to avoid dislodgement or interference of movement of people.
This peg shall remain an removed for any further extension of the site and maintenance.
Question -3
How shall you take the levels from the datum peg?
Answer:
By the use of the line level, together with the line fixed to the datum peg to run to the other side or corner of the site and checking the line level (reading the spirit level) to find the level of the site.
Question -4
Why do you need the site to be level?
Answer:
For building construction purposes,all construction sites need to be level in order to set up a stable ground and avoid soil erosion and also bring a level base for the building foundation to commence.
DIFFERENCE BETWEEN VOCATIONAL TRAINING INSTRUCTOR AND TECHNICAL SCHOOL TEACHER.
Infact there is very slide difference between being an instructor in MTC and Teaching in Juba Technical school.these are technical professional workers,they have the methodologies of teaching/instructing.
The difference is in following up asignments from trainees and students.
Vocational training instructors follow up trainees'asignments fully and enter into trainees' progress records while in the technical schools,Teachers doesn't evaluate other subjects except when time comes for termly evaluation.
I am really enjoying being a vocational training instructor than teaching in technical school.
The second point is, the mode of running vocational training is 30% theoretical and 70% practical while in the technical school is the opposite,70% theoretical and 30% practical.
So these differences makes the technical students in the field of their learning weaker than the vocational training trainees who when they graduated,they are being look for seriously.
The difference is in following up asignments from trainees and students.
Vocational training instructors follow up trainees'asignments fully and enter into trainees' progress records while in the technical schools,Teachers doesn't evaluate other subjects except when time comes for termly evaluation.
I am really enjoying being a vocational training instructor than teaching in technical school.
The second point is, the mode of running vocational training is 30% theoretical and 70% practical while in the technical school is the opposite,70% theoretical and 30% practical.
So these differences makes the technical students in the field of their learning weaker than the vocational training trainees who when they graduated,they are being look for seriously.
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