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All about Types of material for Wall Construction- Masonry Block

Published

2 years ago

April 1, 2023

Masonry blocks are the main component of the wall. In 21 century, construction materials are changed instead of traditional materials. Here we will discuss all wall material mainly brick or block, which is the main component of a wall.

Many kinds of walls for a building are the Main wall, partition wall, retaining wall, boundary wall, parapet wall, etc.

Size, Shape, and strength vary for different types of walls. For the Partition wall, a minimum strength block is required which is safe for bearing self-load and the retaining wall block will be good under vertical and horizontal pressure strong.

Further, we discuss the type of block used for different purposes available in the market.

Type of masonry block

Based on the material of the block
Based on shape of block
Based on Manufacturing Type of block

Type of Masonry Block Based on Material of Block:

Concrete block
Fly Ash block
AAC block
Cinder block

1. Concrete Block

Masonry blocks made with concrete mortar only are concrete blocks. Concrete mortar consists of cement, sand, and aggregate. Concrete blocks are available in different sizes in the market. The strength of mortar decides block strength.

2. Fly Ash Block

Masonry blocks are made with concrete mortar which includes fly ash called fly ash Block. Fly ash is a waste product of coal thermal power plants. The use of fly ash in blocks makes an environment-friendly product and reduces the weight of the block.

3. AAC block

AAC (Autoclave aerated concrete) Block is a new kind of lightweight block used in multistory buildings. AAC blocks are not strong enough like clay bricks or concrete blocks, so used only in buildings where columns and beams are provided for load transfer, and blocks are used for partition walls only.

4. cinder block

Cinder blocks are similar to concrete blocks but are made from industrial waste materials such as coal cinders.

Type of Masonry Block Based on Shape of Block:

Solid Block
Hollow block
Key/ interlock Block
Beltis block
Breeze block

1. Solid Block

A solid block is completely dense and has no open spaces inside it. Solid blocks are typically used in load-bearing walls or other structural applications where strength and durability are essential.

Solid blocks are available in a variety of sizes and shapes, including standard rectangular blocks, and corner blocks. Used in the construction of foundations, retaining walls, and structural walls.

2. Hollow Block

Hollow blocks are a type of masonry block that have one or more hollow cores or voids running through the middle. These voids can be either circular or rectangular in shape and are usually filled with a material such as concrete or insulation to improve the block’s strength and insulation properties.

Hollow blocks are commonly used in construction for non-load-bearing walls and partitions, as well as for decorative purposes.

3. Key/ interlock Block

Interlocking masonry blocks are a type of building block that is designed to fit together like puzzle pieces, without the need for mortar or other adhesives. These blocks have unique shapes that interlock with one another, creating a strong, stable, and secure connection. Interlocking masonry blocks are often used in construction for retaining walls, garden walls, and other landscaping projects, as well as for residential and commercial buildings.

One of the main advantages of using interlocking masonry blocks is their ease of installation. Because they do not require mortar, they can be quickly and easily installed by a trained professional or even a DIY enthusiast. This can save time and money during the construction process.

5. Breeze Block

Breeze blocks, also known as decorative blocks, have decorative patterns and are commonly used in architectural projects.

Type of Masonry Block Based on Manufacturing of Block:

Hydraulic pressed block
Vibrated block
Autoclave heated block

1. Hydraulic-pressed block

A type of masonry block that is manufactured using hydraulic pressure to compress and shape the block. These blocks are typically made from a mix of cement, sand, and other aggregates, which are mixed with water and then placed into a mold. The mold is then subjected to hydraulic pressure, which compacts the mixture and creates a dense, uniform block.

Advantages of using hydraulic pressed blocks

Resistance to moisture and weathering.
Uniform size and shape
The dense, tightly compacted nature of these blocks makes them less susceptible to moisture intrusion and damage from freeze-thaw cycles.
Fire-resistant, making them a good choice for construction projects where fire safety is a concern.

Disadvantages of using hydraulic pressed blocks

Low insulation property
Expensive due to the heavy machinery for manufacturing.

2. Vibrated block

During the manufacturing process, the concrete mixture is poured into a mold and then subjected to high-frequency vibration, which compacts the mixture and removes any air pockets. This creates a dense, uniform block that is stronger and more durable than other types of masonry blocks.

Advantages of using vibrated masonry blocks

Good strength and durable
Dense, well compacted
less prone to cracking, chipping, or other forms of damage
good insulation properties.

How to calculate the number of blocks?

The number of blocks depends on mainly two factors:

Size of plot
Size of the blocks

Assume A wall 8″ thick, 10′ long, and 9 feet high have to be constructed. And the size of block is 16″ X 8″ X 6″

Leave the width of the block and thickness of the wall which is the same 8″.
Area of wall = 10’*9′ = 90 square feet.
Area of block = 16″*6″ = 96 square inch = 0.667 square feet.
Number of blocks = area of wall/area of the block
Number of blocks = 90/0.667 = 134.93
Approx 135 blocks(16″x8″x6″) for 90 square feet of work required.

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11 – Aggregate Test -All Type & Importance

Published

5 months ago

July 12, 2024

Virendra Saini

Aggregate test is the most important substance in the construction industry. The strength of the structure after joint strength depends on the strength of the aggregate.

Aggregate indeed plays a crucial role in the construction industry, particularly in the production of concrete. Concrete is a fundamental building material used in various construction projects, and its strength and durability are significantly influenced by the quality of its components, including aggregate.

Required characteristics of aggregate

The study of aggregate can improve the strength of construction as well as money. Here are some key points about the importance of aggregate test in construction:

Strength and Durability: Aggregates are the primary component in concrete, constituting about 60-75% of the total volume. The properties of the aggregate, such as its strength and durability, directly impact the overall strength and durability of the concrete structure.
Load-Bearing Capacity: Aggregates provide the bulk and rigidity to concrete, contributing to its load-bearing capacity. The arrangement of aggregates in the mix affects the compressive strength of concrete, which is crucial for supporting structural loads.
Economy: Properly graded and high-quality aggregates can enhance the workability of concrete mixtures, allowing for more economical use of cement. This is important as cement is typically a more expensive component of concrete. A well-designed mix with the right proportion of aggregate can optimize the use of cement without compromising strength.
Volume Stability: The expansion and contraction of concrete due to temperature changes and moisture variations can be influenced by the type and quality of aggregate used. Aggregates that are resistant to changes in volume help ensure the long-term stability of the concrete structure.
Bonding with Cement Paste: The interface between the aggregate particles and the cement paste (the glue that holds concrete together) is critical. Proper bonding is necessary to achieve the desired strength and durability. The surface characteristics of the aggregate can impact this bonding.
Shape and Size: The shape and size of aggregate particles also play a role. Well-graded aggregates with a variety of sizes can result in a denser and more workable mix. The shape of the particles can affect the surface area and, consequently, the amount of cement paste needed for adequate bonding.

Above all parameters are used to identify aggregate before use on-site in construction.

Type of Aggregate test :

Particle Size Distribution (Gradation Test):
- Purpose: Determines the distribution of particle sizes within an aggregate sample.
- Method: Sieves of different sizes are used to separate and measure the particles.
Shape and Texture Tests:
- Flakiness and Elongation Index Test:
  - Purpose: Assesses the shape characteristics of aggregate particles.
  - Method: Measures the ratio of the elongated or flaky particles to the total mass.
- Angularity Number Test:
  - Purpose: Quantifies the angularity of aggregate particles.
  - Method: Involves measuring the volume of voids between angular particles.
Specific Gravity and Absorption Test:
- Purpose: Determines the specific gravity and water absorption of the aggregate.
- Method: Involves measuring the weight of the aggregate in air and in water to calculate specific gravity and absorption.
Bulk Density and Voids Test:
- Purpose: Measures the density and void content of aggregate.
- Method: Involves determining the bulk density and calculating the percentage of voids in the aggregate.
Soundness Test:
- Purpose: Evaluates the resistance of aggregate to disintegration due to weathering.
- Method: Aggregates are subjected to cycles of wetting and drying in a sodium sulfate or magnesium sulfate solution.
Los Angeles Abrasion Test:
- Purpose: Measures the resistance of agSogregate to abrasion and impact.
- Method: Aggregates are placed in a drum and rotated, causing abrasion and impact on the particles.
Crushing Value Test:
- Purpose: Determines the aggregate’s resistance to crushing under a gradually applied compressive load.
- Method: Aggregates are subjected to a specified load and the percentage fines generated is measured.
Impact Value Test:
- Purpose: Measures the aggregate’s resistance to sudden impact.
- Method: Aggregates are subjected to a standard impact test using a testing machine.
Moisture Content Test:
- Purpose: Determines the moisture content of aggregates.
- Method: Involves weighing the aggregate before and after drying to calculate the moisture content.
Alkali Aggregate Reactivity Tests:
- Alkali-Silica Reactivity (ASR) Test: Evaluates the potential of aggregates to react with alkalis in concrete.
- Alkali-Carbonate Reactivity (ACR) Test: Assesses the potential reactivity of carbonate aggregates.
Organic Impurities Test:
- Purpose: Identifies the presence of organic materials in the aggregate.
- Method: Aggregates are immersed in a solution, and any color change is observed.

IS Code for Aggregate are shown as:

IS CODE	AGGREGATE TEST
IS 2386 – 8	Methods of Test for Aggregates for Concrete – Petrographic Examination
IS 2386-7	Methods of Test for Aggregates for Concrete, Part VII: Alkali Aggregate Reactivity
IS 2386-6	Methods of test for aggregates for concrete: Measuring mortar making properties of fine aggregates
IS 2386-5	Methods of test for aggregates for concrete: Soundness
IS 2386-4	Methods of test for aggregates for concrete: Mechanical Properties
IS 2386-3	Methods of test for aggregates for concrete: Sp. Gravity, Density, Voids, Bulk Density & Water absorption
IS 2386-2	Methods of test for aggregates for concrete:
IS 2386-1	Methods of test for aggregates for concrete: Particle Size & Shape

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Amazon Sale 2023 : Get prepare for special offers of the year

Published

1 year ago

October 1, 2023

Virendra Saini

Amazon Great Indian Festival starts 8th Oct! Promote now through Amazon Associates!

Amazon sale 2023 date has been announced which we all indian wait of a year for big discounts in shopping.

Upcoming Big sale start from 8 october 2023. Amazon’s flagship event Great Indian Festival will go live on Sunday, Oct 8, with early access for Prime members going live on Saturday, Oct 7 at midnight.

Some of items price in upcoming sale has been revaled and many item discount price will be available soon.

So, get ready for upcoming shopping season of the year.

Amazon Event Landing Page: Visit Here

If you wish to shop before stock out get ready and add items in wishlist before sale starts.

How to choose best deals ?

Amazon price trackers tools

Use Amazon price trackers tools for check best prices with duration it helps in shop in that price of should wait for a price drop.
Some of price tracker tools name are:
1. keepa
2. price history
3. Earny
4. PriceBefore

Check Reviews and Rating

Which item you want to buy, would be purchase by someone before so check product reviews where you can understand about product.

Today’s Deals

Click on “Today’s Deals”, which is dedicated to show special offers and discounts on that time available.

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Concrete mixer machine: Guide to Efficient Mixing Equipment

Published

1 year ago

August 10, 2023

Virendra Saini

A concrete mixer machine, also known as a cement mixer, is a device used to combine cement, water, and aggregates (e.g., sand, gravel, or crushed stone) to form concrete. This mixing process ensures that the concrete’s components are evenly distributed and results in a homogenous mixture that is suitable for construction purposes.

Concrete mixers machine come in various sizes and types, but the most common ones are:

Types of Concrete Mixture Machine

1. Drum Mixer:

This is the most common type of concrete mixer machine, where the ingredients are mixed by tumbling them inside a revolving drum. The drum can be tilted to discharge the concrete. Drum mixers can be further classified as:

Tilting Drum Mixers: The drum can be tilted to pour the concrete.
Non-Tilting Drum Mixers: The drum is fixed, and the concrete is discharged by opening a chute at the bottom.

2. Pan Mixer

This type of mixer has a stationary mixing pan and blades that rotate around a vertical axis. The ingredients are mixed as the blades move through the material.

3. Twin Shaft Mixer

This type of mixer has two horizontal shafts with paddles that counter-rotate, ensuring thorough mixing of the materials.

4. Vertical Axis Mixer

In this mixer, the shaft is vertical, and the mixing action is similar to a pan mixer but on a larger scale.

Concrete mixer machines are widely used in various construction projects, including buildings, roads, bridges, and other structures. They are available in different capacities, ranging from small portable mixers suitable for DIY projects to large stationary mixers used in commercial construction.

When operating a concrete mixer machine, it’s essential to follow safety guidelines, wear appropriate protective gear, and ensure that the machine is used and maintained correctly to prevent accidents and ensure optimal performance. Additionally, different types of mixers and concrete formulations may be suitable for specific construction applications, so it’s essential to choose the right equipment and mix design for the project at hand.

Reference : Concrete mixer

HOW TO CHOOSE THE RIGHT CONCRETE MIXER machine?

1. Size
Power supply
Durability
portability

Which Concrete Mixture Machine is used Most commonly?

Mostly Drum Mixture machine is used. It is used due to its ease to handle for loading cement, sand, and aggregate as well as unloading concrete. Tilting Drum Mixers are used commonly at small scales. No chute opening is available for unloading, so no cement slurry waste and homogeneous concrete mixture occurs.

What size is to be considered while purchasing a new concrete mixture machine?

When loading and unloading of concrete and material are done by labor manually then choose a capacity of 1.5 bag cement concrete mixture.

What is the price of the RCC Concrete mixer machine?

The concrete Mixture machine costs 50,000 rupees to 2,50,000 rupees. It depends on type of mixture and size of the mixture.
Motor-operated Tilting Drum Mixers costs around 75,000 rupees.

Disclaimer

Please note that the information on technovahub.com is designed to provide general information on the topics presented. The information provided should not be used as a substitute for professional services.