Question 1

How does water absorption affect hollow blocks?

Accepted Answer

The water absorption rate for concrete hollow blocks is generally around 9%. High water absorption can affect the block's durability and thermal performance, making it important to consider in humid environments.

Question 2

Can these blocks be reinforced?

Accepted Answer

Yes, the hollow cores can be filled with concrete or rebar to enhance strength, making them suitable for certain load-bearing applications.

Question 3

Are these blocks environmentally friendly?

Accepted Answer

Yes, they are considered eco-friendly as they use less material than solid blocks. The hollow design also improves energy efficiency by enhancing insulation.

Question 4

How do hollow blocks contribute to construction efficiency?

Accepted Answer

Their lightweight design makes them easy to handle, reducing labour costs. Additionally, the hollow cores improve thermal insulation and allow for faster construction compared to traditional bricks.

Question 5

What is the typical color and shape of these blocks?

Accepted Answer

The blocks are generally grey and have a cuboidal shape with hollow cores to reduce weight and allow for reinforcement or insulation filling.

Question 6

What are the common applications of 4-inch hollow blocks?

Accepted Answer

They are primarily used in partition walls and non-load-bearing structures due to their lightweight and insulating properties. They are also suitable for soundproofing and thermal insulation.

Question 7

What material is used to manufacture these blocks?

Accepted Answer

These blocks are made of concrete, which typically includes a mix of cement, sand, aggregate, and water. The hollow design reduces weight and enhances insulation properties.

Question 8

What are the dimensions of a 4-inch hollow concrete block?

Accepted Answer

A standard 4-inch hollow concrete block measures 16 inches in length, 8 inches in height, and 4 inches in thickness, with slight variations to account for mortar joints.

Question 9

Can hollow blocks be customized in size?

Accepted Answer

While standard sizes are commonly used, hollow blocks can be customized to meet specific project requirements. Manufacturers often offer various sizes and shapes to accommodate different construction needs.

Question 10

What is the typical weight of a 4-inch concrete hollow block?

Accepted Answer

The average weight of a 4-inch concrete hollow block is approximately 12.5 kg. This weight can vary based on the specific mix design and manufacturing process used by different suppliers.

Question 11

Are there specific standards that hollow blocks must comply with?

Accepted Answer

Hollow blocks must comply with various standards such as IS 2185-1 (2005) in India, which outlines specifications for concrete masonry units. Compliance ensures that the blocks meet quality and safety requirements for construction.

Question 12

What are the advantages of using hollow blocks in construction?

Accepted Answer

Hollow blocks offer several benefits including being lightweight, fire-resistant, sound-insulating, and energy-efficient. They also reduce material consumption and can be reinforced for added structural integrity.

Question 13

What materials are used in the production of hollow blocks?

Accepted Answer

Hollow blocks are primarily made from a mixture of cement, sand, and aggregates. This combination provides durability and strength while maintaining a lightweight structure.

Question 14

What is the typical compressive strength of a 4-inch hollow block?

Accepted Answer

The compressive strength of a 4-inch hollow block typically ranges from 3.5 N/mm² to 10 N/mm², depending on the specific grade and manufacturing standards. Higher strengths are required for load-bearing applications.

Question 15

What are the standard dimensions of a 4-inch concrete hollow block?

Accepted Answer

The standard nominal size of a 4-inch concrete hollow block is 4" x 8" x 16" (approximately 390mm x 190mm x 90mm). These dimensions may vary slightly based on manufacturer specifications and tolerances.

UNIT	PCS.	TOTAL PRICE
Per Bundle	144	AED 244.80
Per Pick-up	432	AED 734.40
Per Truck	2,880	AED 4,896.00

UNIT	PCS.	TOTAL PRICE
Per Bundle	144	AED 244.80
Per Pick-up	432	AED 734.40
Per Truck	2,880	AED 4,896.00

الطوب (الطابوق) المجوّف قياس (4")

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