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Important Tasks of Construction Mobilization, BCT-3

Dear readers I'm extremely sorry for not publishing posts in this "building construction tutorial series" for long. I was busy in some personal projects.

In previous post of this building construction tutorial series, we divided complete building construction works into 8 work-phases. In this post we are going to discuss the first phase of building construction that is mobilization.

Mobilization is the preliminary works of any construction project. In a board sense, construction mobilization refers to the processes and tasks that are undertaken before the actual groundwork begins. It needs the following important tasks to be performed -

  1. Temporary Fencing
  2. Labor shed making
  3. Power connection
  4. Water supply and Sanitation
  5. Site Office
  6. Storage
  7. Gathering tools and machineries
  8. Construction documents
  9. Other tasks, etc.

1. Temporary Fencing: The first task of starting construction project is to make fence all around the plot. It secures the plot. You can use signboard, banner, safety instruction, etc on this fence.

building construction tutorial, mobilization

2. Labor shed making: It is now common practice that labors who work on construction project stay in that project. So, it's essential to make a labor shed in the project. Choose a location carefully to make shed so that it doesn't hamper foundation work. Some big companies have permanent labor shed. So they don't need to make temporary labor shed on plot.

3. Power connection: For a construction project you must need continue power supply. So apply for power connection from electrical authority or arrange a generator to fulfill your need.

4. Water supply and Sanitation: As your workers will stay in project you will need pure drinking water and sanitation system for them. Pure drinking water also need for construction works. So, apply for water supply connection from national water supply authority or set a deep tubewell.

5. Site Office: Ofcourse, a project management team will work during the construction period of the project, there will be held meetings among clients, owners, contractors, sub-contractors and stackholders. For them you'll need a site office with proper sanitation and water supply facilities.

6. Storage: For storing building materials, construction equipments and tools you'll need a storage with lock and key.

7. Gathering tools and machineries: Gather necessary tools and equipments on project for construction works

8. Construction documents: Copies of all legal documents such as building permission, electricity, water and gas connection permissions from concerned authority, etc should be arranged and kept in project.

9. Other tasks: Keeping safe the passerby as well as the workers and stuffs from accident providing safety signboard is also included in mobilization. Arranging first-aid box and fire fighting equipments should be included in mobilization.

Sometimes cleaning and levelling the ground are included in mobilization phase of construction. I included those in ground-work phase.

This is the summary post of tasks of the mobilization phase. Some of these tasks need further explanation. I'll describe those in future posts.

Your Turn
Do you want to add any other task/tasks in mobilization phase of construction? Please share in comment...
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8 Work-Phase of a Building Construction Project, BCT-2

In the previous post of this "building construction tutorial series" I briefly discussed about soil investigation, structural designing and planning of a building. After successfully completing that process, a contractor is selected by bidding process for constructing the building and a complete set of drawing is handed over to the contractor.

Here some things should be explained so that you can understand the process clearly.

Some construction company buy land and employ consultant to design and make plan for the building. This type of company doesn't need to go through the bidding process for selecting contractor (direct contractor). They generally employ sub-contractors for various work phase. They normally manage the project by their own project management team.

But when you are making your own building you have to employ contractor to complete the project because you don't have construction instrument and project management team. You just finance the project, the rest will be done by contractor.

The above explanation doesn't need to include in this tutorial. Because, I started this tutorial for construction professionals. I described this so that beginners can understand the whole process well.

Now our actual tutorial is started from here.

After taking building permission for starting construction from government authority you can proceed.

building construction tutorial

8 Work-Phase of a Building Construction

Whatever you call these phases, construction-phase or work-phase, a typical building construction involves following sequence of work-phase -

  1. Mobilization
  2. Ground work
  3. Sub-Structure work
  4. Super Structure work
  5. Masonry work
  6. Services work
  7. Finishing work, and
  8. Completion.

1. Mobilization: Mobilization is the process of making ready the plot for starting construction. It includes making fence all around the plot, making labour shed, ensuring services facilities, transferring construction tools and equipments to the plot, etc.

Read more: 
Important Tasks of Construction Mobilization, BCT-3.

7 Preliminary Works to Do Before Starting a Construction Project

2. Ground work: Ground work includes cleaning the plot, levelling ground, bench-marking etc.

See: 6 Ground Work to Prepare a Land for Building Construction

3. Sub-Structure: Parts of structure which are contacted with earth is called sub-structure. Such as -

  • Foundation
  • Short Column
  • Grade Beam
  • Ground Floor, etc.
To know more details about substructure see Components of Substructure of a Building, BCT4.

4. Super Structure: The parts of structure above ground is the super structure. Such as -

  • Column
  • Slab and Beam
  • Staircase
  • Parapet, etc.

Read Components of Superstructure of a Building, BCT5 to know details about Superstructure.

5. Masonry work: Masonry work includes -
  • Masonry wall work
  • Plaster work, and
  • Tile work, etc.

6. Services work: Services works are -

  • Mechanical work
  • Electrical work
  • Plumbing work, etc.
Read More:
MEP: The Services Work in Construction, bct-7
7. Finishing work: Typical finishing works in a building are -

  • Painting work,
  • Wooden work,
  • Aluminium work,
  • Metal work, etc.
Read More:
Finishing Work in a Building Construction Project, BCT8

8. Completion: This is the last stage of construction of a project. This includes -

  • Final touch
  • Cleaning
  • Landscaping and Plating
  • Final inspection, and
  • Handover.
Read More:

The above discussed "8 work-phase" are the typical stages for completely constructing a building. I designed this "building construction tutorial series" based on those "8 work-phase".

As every work-phase contains several other work-items, I'll discuss every work-item separately in this tutorial series. So, please subscribe to ACE via EMAIL to get update when it happens.

Read previous post of this "building construction tutorial series" here.

Your Turn
How would you like to divide building construction works into phases? Please share in comments...

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Soil Investigation Basics for Engineering Purpose

Soil investigation is done for various purpose. In this post I'll describe the soil investigation basic for engineering purpose.

We all know, it is essential to investigate the soil of the selected plot on which a structure will be constructed.

Based on soil investigation a soil report is prepared for the purpose of designing the building foundation. When an engineer designs building foundation he/she must carefully read the report and designs the foundation based on the data provided in the report.

Soil investigation basic

Why soil investigation is required for designing foundation?

Soil investigation is required for the following purposes -

  • To know the allowable bearing capacity of foundation for proposed building.

  • To know the depth and type of foundation for the proposed building.

  • To know the allowable passive resistance for the foundation of proposed building.

  • To know the type, grading and nature of soil.

  • To know the ground water level.

Methods of soil investigation

The common methods of soil investigation are -
  • Inspection
  • Test pits
  • Probing, and
  • Boring.

Inspection: In some places you don't have to investigate much. You'll get enough data to design the foundation of the proposed building by just inspecting the plot. This method of soil investigation includes know the geological condition of the plot, getting data about neighbour buildings, their foundation type and depth, etc.

Test pits: This is done to collect soil samples for detail analysis. In this method several pits are dug by hand or excavator. The depth of pit is below 5 feet so that one can have visual inspection. Several samples are collected from the pit of both disturbed and undisturbed soil.

Probing: In this method a 25 mm or 40 mm diameter steel bar is driven into the ground till solid soil strata is found. It is normally driven by hammer. The penetration and withdrawl of the steel rod is closely observed to know the nature of soil layer.

Boring: In this method several bore holes are made for the purpose of collecting soil sample from below the ground. Then the collected sample is analysed for preparing the soil report.

Typical steps of soil investigation

Soil investigation involves following steps -
  • Details planning for the sequence of operations.

  • Collecting the samples of soil from the plot.

  • Determining the soil characteristics by conducting field tests.

  • Study the condition of ground water level.

  • Collecting ground water sample for chemical analysis.

  • Soil exploration.

  • Testing all collected samples in the laboratory.

  • Analysis the test results.

  • Preparing report.

Based on this prepared report a structural engineer designs the foundation of structure for the proposed plot.
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Step by Step Building Construction Tutorial Series, BCT-1

I've searched many times in google if I find complete "Building Construction Tutorial" step by step. But I haven't.

When a student study in college curriculum, he/she doesn't have much knowledge about practical construction procedure. Because, theoretical knowledge is much more different from practical knowledge.

building construction tutorial, step by step construction tutorial of building

In construction field you'll have to solve many problems which you'll not find in books of college curriculum. So, as I promised before, I've decided to publish complete building construction tutorial step by step from starting to completing a project.

I'll publish when the post of this tutorial series is ready. So, please subscribe by Email to get an update as soon as it happens.

Planning and designing of building:
Construction of a building start with choosing a land. When someone decides to build a building on a plot, he/she just contact with consultant and give brief description of his/her plot. Consultant then visits the plot and employ an architect to make plans for the building.

Architect visits the plot before making plan for the building. Then he/she makes plan by mixing his/her creativity with landowner's requirements also by not avoiding the rules and regulation of related governmental authorities. After that the building-plan is revised several times before submitting to government-authority for approval. After making necessary changes suggested by approval authority the building-plan is finally approved.

The purpose of this tutorial series is not explaining the planning and designing process of a building. I just briefly describing the process so that you can easily understand the process before starting construction phase.

Now come to the point where we left.

After getting approval for building-plan, the consultant then go through the soil investigation process to know the soil condition of the plot. Based on this soil investigation report, the structural engineer designs the building.

When the design is ready and approved, it is sent for construction.

Construction needs a complete set of drawings which includes structural drawings, architectural drawings and services drawings.

See: Types of Drawing in building Construction

A contractor or construction department then employ his construction team to complete the project.

See: Construction Project Management Team

Project management team then plans how to start construction of the project and make schedule for every work-item for completing the project. And from this point actual construction is started for the building. And from this point our actual construction tutorial series is also started.

Start the building construction tutorial series from here.

Dear readers, I've started this tutorial series to help you understand the complete building construction process step by step from my practical experience as well as from my educational knowledge. If you have any suggestion to share I'll be glad to hear from you.

Your Turn
If you have any suggestion, remark and guideline about this series please share in comments...

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