Coarse Aggregates Replacement with Jhamma Bricks(Concrete Prep)

Concrete is considered the world’s most used construction material. Typical concrete mixtures are comprised of water, sand, cement and an aggregate of rock. This civil project focuses on the coarse aggregate in concrete. Here you will replace the coarse aggregate by burn brick or Jhama brick and you will study the effect of salient parameters that affect the properties of Jhama class brick based concrete. You will also study the short-term mechanical and physical properties of fresh and hardened Jhama class brick based concrete.

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1. GIS

2. Structural & Foundation Analysis

3. CPM & BIM

4. Tall Building Design

5. Construction Technology (Career Building Course)

6. Foundation Design

7. Construction Project Management

8. Building Information Modelling

9. Seismic Design

10. Quantity Surveying

11. ETABS Software

12. Project Management with Primavera

Jhama bricks are chosen because of their availability. The burn brick is available from brick manufacturing area. Also, in brick-making, a large number of bricks are rejected due to nonconformity with the required specifications. One such major nonconformity is the distorted form of brick produced due to the uneven temperature control in the kiln. These rejected bricks can also be a potential source of coarse aggregate. This project would not only make good use of the waste material but would also help alleviate disposal problems.

This project will present the effects of Jhama Class Brick inclusion on the mechanical properties of the concrete matrix in wet and hardened state properties. For checking mechanical properties of Jhama Class Brick use bat-based concrete partially replacement Jhama class brick to coarse aggregate ratios 0%, 10%, 20%, 30%, 40% and 50% in M40 grade of concrete.

Project Description:

1. Concrete: Concrete, also known as Portland cement concrete, is a composite material composed of fine and coarse aggregate bonded together with a fluid cement that hardens over time. These are mainly used for construction of buildings, roads etc.
2. Coarse Aggregates: Aggregates are inert granular materials such as sand, gravel, or crushed stone that, along with water and Portland cement are used during concrete preparation.
3. Jhama Bricks: Jhama bricks are rejected bricks which are either over burned or not shaped according to the specification. The best way to recycle these bricks is by using them in making concretes.

Project Implementation:

1. At first, collect the materials that are required for making the Jhama class brick bat-based concrete. Collect coarse aggregates, sand and the Jhama class brick coarse aggregate as per design of mix proportion M40.
2. Then perform various tests on those material such as, specific gravity test, water absorption test, elongation index and flakiness test, sieve analysis etc. to know the characteristic of those material.
3. Then mix design preparation according to the IS 10262-2009. Prepare 6 samples by taking class brick to coarse aggregate ratios 0%, 10%, 20%, 30%, 40% and 50%.
4. After that perform casting operation to make the concrete.
5. After your mixtures get hardened perform the following test on every sample to determine their engineering properties,
• Workability test
• Compressive strength test
• Split tensile strength test
• Flexural strength test
6. Then, compare the results you obtained for each sample in the above test, and find out which composition yields better concrete.

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Project Brief: After successful completion of the project, you can observe that, the properties of prepared concrete are comparatively equal to the properties of concrete made up of coarse aggregate.

• When the fiber content is around 0.25% MDD increases and OMC decreases.
• But when the fiber content is increased more than 0.25% MDD decreases and OMC increases. This is because the soil particles rearrange itself with the randomly oriented fibers.

Software requirements:

Minitab: You can use this software for plotting and comparing your result data.

• Jhama brick
• Coarse Aggregate
• Concrete testing lab apparatus

• Concrete technology

Replacement of Coarse Aggregates with Jhamma Bricks for Preparation of Concrete