Interlocking Blocks Project Report



Project Report of Interlocking Blocks Manufacturing is available for immediate download here. The objective of the Project Report of Interlocking Blocks Manufacturing is to provide information to the potential entrepreneur. This Interlocking Blocks Manufacturing project report is a sample project report. These reports help prepare the project report as per the objectives. Project reports are also helpful in studying the project and collecting information about the project.

Concept of Interlocking Blocks

Making bricks or blocks is an excellent alternative in the present time for any individual who wants any business. Assuming you need to begin an independent company, then this business will be appropriate for you. You can start this business for a minimal price and with restricted space. Prior, just earth blocks were stylish here, yet today, concrete blocks came smart with expanding time, and presently its utilization has likewise expanded.

The shape of this kind of block is modular and rectangular (250 mm length, 210 mm wide, and125 mm high), and a proper T-junction or right angle corner is required to maintain by block. The block is different from conventional blocks or bricks since the laying work does not need mortar. Also, building walls and other structures are faster due to this characteristic as the blocks are dried up and closed in. Almost any building type can be built with blocks with spanning and depression at each other’s key.

The toe blocks on the base have a flat base and are partly planned to lay correctly on the base mortar while receiving the centre blocks. The middle blocks are depressed at the bottom and are projected to receive the middle blocks and eventually the top. To ensure that the blocks fit precisely next to each other before placing or forming the first course in a mortar bed, the main design constraints being that the plan should be rectangular and every wall size and opening should be multiple the lengths of the type of the block. The blocks should be placed on the base around the whole building. 

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Principles on which the concept of interlocking blocks is based as:

  • The blocks are made up of protruding pieces that fit into recessed sections exactly in the adjacent sides and blocks above. They are horizontally and vertically aligned automatically so that the assembly of the block is achievable without specialist block-laying skills.
  • Since the blocks may be dried, no mortar is needed, and a significant amount of cement and labour costs is saved.
  • Vertical holes that fulfil four purposes could necessarily be provided to each block –

(i) to minimise block weight and to insert steel reinforcement rods or bars.

(ii) Acting as an electric and water/fluid piping conduit

(iiI) Put liquid mortar into the holes that run through the wall’s entire height. Therefore the screening of the wall and the construction of a permanent solid wall, otherwise their strength may increase, without vertical gaps, to solid blocks.

Shapes & Sizes

Several interlocking blocks, varied in shape and size, were produced in the last year depending on the strengths and applications required. The created system has the following forms:

Full blocks measurement (300 x 125 – 150 x 100 mm) for all standard walls (single or double block thick).

Half blocks (150 x 125 – 150 x 100 mm) are molded to resize or prepared by cutting freshly molded full blocks in half.

Channel blocks are the similar size as full and half blocks, on the other hand a long axis of channel reinforcing steel and concrete can be placed to form lintels or ring beams.

The vertical grout holes are square or round in shape, with the vertical sides of the blocks are flat or have recesses.

Electrical switch housing and conduits, as well as water piping outlets, are incorporated.

For window sills, special blocks were prepared.

Composition of Interlocking Brick

The block structure depends on the availability and utilisation of materials. The main components of the block are as follows:

  • Cement: Cement has the property of mixing with water and solidifying it. Cement is widely used in structural design and variation companies, and Portland cement is the most widely used type of cement. It is a basic element of concrete, block, mortar, or plaster. Cement consists of calcium silicon and aluminium oxide mixture. The portland cement is made from calcium heating (a calcium source) with clay and molten using a sulphate source called gypsum (the most frequently known clinker).
  • Water: Water interacts with cement and aggregates to start the hydration process, and a sufficient water-cement ratio ensures good consistency. The cement paste collects the aggregate, fills the spaces and makes it easier to flow. The application of clean, pure water is usually advisable to prevent detrimental effects of salt, turbidity and other pollutants in block manufacture. Impure water used to make the block may be difficult to set or cause premature failure of interlocking blocking walls.
  • Aggregates: The bulk of the interlocking block mixture consists of fine and coarse aggregates. Different types of soil and properties have been explained above. It can occur in industries naturally or artificially (uncrushed or crushed). The size of the aggregate affects the strength and load capacity of the interlocking block.

Process of Manufacture

The manufacturing process of interlocking bricks involves the following steps:

  • Proportioning
  • Mixing
  • Compacting
  • Curing
  • Drying

The process of manufacturing is systematic and straightforward. The items cement, sand and stone chips are mixed in the correct ratio of 1:2:4 by volume and then mixed in water and churned thoroughly in a concrete mixture to prepare blocks.

All the raw materials are placed in the concrete mixer, and water is added and then rotated for 15-20 minutes, and then mixture discharged onto the moulds. During the pouring process, care is taken, vibrators are used to ensure that it sets well and is compact. There is no porosity. Now the blocks are demolded after compacting allowed to dry for 24 hours away from direct sun heat.

The blocks so hardened are healed with water so that cement can be hydrated or placed for 20 days. After every three days, water in the curing tank is change. Now, after being cured step, the blocks are dry in shades before usage so that the initial shrinkage of the blocks is complete. The time required is 15 days, and the production capacity is 1200tons of blocks per year in the single shift for 300 days.

Plant and machinery required.

1Concrete Mixer capacity ten cft. and accessories1
2Hydraulically operated block making machine1
3Mechanical Tile making press1
4Curing Tanks2
5Moulds & Tools1
6Pump set1

The estimated cost of machinery is Rs. 10.00 lakhs and cost of miscellaneous assets like office furniture, office equipment, working tables seven benches are estimated around Rs.1 lakhs and total power required is around 10 HP with 3000 litres of water daily required.

NOTE: This is the estimated, calculated cost, but during setup, the cost may be increased somewhere.

Advantages of Interlocking Block

The following are the advantages of interlocking Block are:

  • Construction using the interlocking block saves time and an adequate amount of mortar concrete compared to traditional masonry blocks laid with mortar.
  • Areas susceptible to earthquakes employ a hollow interlocking block with strength improved across the height of the wall to be able to resist the influence of an earthquake and so provide appropriate structural stability to combat collapse.
  • After forming the basic course, the unqualified worker is used to construct another course.
  • Block removal does not incur considerable damage in a temporary structure as in the case of blocks with mortar.
  • Cost of construction is fairly less.
  • No plasterwork is required.
  • Provides cooler interior.

Disadvantages of Interlocking Block

These are the following disadvantages of interlocking bricks:

  • Rainwater may be a hostage for insects and other unwanted activity into the systems.
  • Because of weather effects, the bricks might also be disintegrated, especially at the corners.
  • The colour of the brick changes when rainwater passes through the gaps.
  • These bricks are not sufficient to hold all the forces on the construction.
  • These bricks are not suited for construction with more than two-story buildings.

Business Dynamics and Marketing

It is not as simple a business as anyone thinks. The dynamics of this are complicated, and without proper connections and market contacts, you cannot work in this business. Therefore, people in this business follow their family business or work in the construction sector either directly or through their friends. Generally, in this business, you sell with the help of your contractor, who orders bricks per need from his contact. This is a teamwork business that supplies construction-related materials like soil, equipment, sand, cement, trolleys, bricks, etc. it means your target market is contractors, not the customers.

It is advisable to first work in this type of industry to build your network in the market and then switch into this business because good networking gives you regular demand for bricks, and you can earn pretty handsome profits.

Key Points Cover in Project Report  

Project Report Table of Contents

2Principles Of Interlocking Bricks / Blocks
3Shapes & Sizes
4Product Composition
5Advantages Of Interlocking Block
6Process Of Manufacture
7Sample Project Financials
8Computation Of Production
9Type Of Bricks
10Calculation Of Sales
11Calculation Of Raw Material Consumed
12Projected Balance Sheet Statement
13Cost Of Production And Profitability
14Consumption Of Power & Fuel
15Break Even Calculation

Apart from this, all the information is being provided. To help in preparing project reports.


Interlock bricks are a new trend and improvement in wall construction as these bricks lock with each other without using cement mortar and give strong structure within less time and cost. Although cement rates are going high day by day, these bricks are suitable for home builders and the construction industry. So it is concluded that usage of this type of bricks is a good option and those who invest in this business get profits if they determined.


Is this business required any permits and licences?

Yes, specific permits required in this business are as follows:

  • Firstly, register your business in manufacturing and construction.
  • Secondly, take permission from your local government and authority to set up a kiln.
  • Thirdly, take approval from the pollution control board.
How to check the quality of Interlocking Bricks?
  • Always check the final batch for stability and consistency.
  • Do not use Interlocking walls in those areas like bathrooms get damp mostly.
  • Plastering the underside of the foundation will keep moisture from seeping in.
  • In the future, if the building is demolished, then interlocking bricks are easily secure without destruction.
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CLC Blocks Project Report

AAC Blocks Project Report 

For whom are these formats useful?
  1. CA Chartered Accountants
  2. Tax Consultants
  3. Small Business Owners
  4. Students
  5. Engineers
  6. Who want to self study

In addition to those who want to prepare project reports themselves.


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