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4 most popular lightweight bricks in Thailand in 2025
Lightweight concrete blocks (also known as Autoclaved Aerated Concrete or AAC blocks) are a highly popular construction material for walls today. Their key features include being lightweight, providing excellent thermal insulation to keep homes cool, offering good soundproofing, and allowing for rapid construction. However, with many brands available on the market, the crucial question for homeowners and contractors is, "Which lightweight concrete block brand is the best?" This article reviews the top 4 leading brands popular in 2025, compares their unique features, and provides a guide on how to choose the right one for your home.
Table of Contents
At a Glance: Comparison of 4 Popular Lightweight Concrete Blocks
For a quick overview to simplify your decision, here is a comparison table highlighting the key features of each brand:
Brand | Key Feature | Best For | Standard |
THAICON | Consistent Quality, 4-Hour Fire Resistance | Projects emphasizing high safety and standards | TIS 1505-2541 |
Q-CON | Excellent Thermal Insulation | Residential homes seeking coolness and energy savings | TIS 1505-2541 |
Diamond Block | High Strength and Soundproofing | Walls requiring extra strength, quiet rooms | TIS 1505-2541 |
TPI | Cost-Effective, Complete Mortar System | General construction focused on value and system efficiency | TIS 1505-2541 |
1. THAICON Lightweight Concrete Blocks
THAICONis a brand widely recognized in large-scale construction projects, renowned for its consistent quality and high safety standards.
Highlights:
- High Fire Resistance: Offers fire resistance for up to 4 hours, enhancing building safety.
- Standardized Quality: Manufactured with modern technology, ensuring every block meets a consistent quality standard.
- Lightweight: Reduces the structural load, facilitating faster transportation and construction.
- Suitable for: Construction projects that require high safety standards, public buildings, and homes where quality is a top priority.
2. Q-CON Lightweight Concrete Blocks
Q-CON is one of the pioneering brands of lightweight concrete blocks in Thailand. Its main strength lies in its exceptional thermal insulation properties, which help keep homes cool.
- Highlights:
- Excellent Heat Insulation: Effectively reduces heat transfer from the outside, leading to significant savings on air conditioning costs.
- Good Soundproofing: The block's structure contains tiny air pockets that help absorb sound effectively
- Variety of Sizes: Offers a wide range of product sizes to accommodate various wall designs.
Suitable for: Residential homes aiming to reduce external heat and save on energy consumption.
3. Lightweight brick (Diamond)
The Diamond Block brand stands out for its product strength and durability, making it an excellent choice for applications requiring exceptionally sturdy walls.
- Highlights:
- High Strength: Possesses good compressive strength, suitable for load-bearing walls or those needing high durability.
- Noise Reduction: Its optimal density allows it to effectively dampen external noise.
- Value for Money: Delivers high-quality strength at a reasonable price point.
- Suitable for: Interior dividing walls, exterior walls facing busy streets, or buildings where a quiet environment is desired.
4. TPI Lightweight Concrete Blocks
TPI is a well-known brand offering a comprehensive range of construction materials. The standout feature of TPI blocks is the availability of specially designed masonry and rendering mortars that work perfectly with their blocks.
- Highlights:
- Complete System: Provides both Lightweight block masonry mortar (TPI m310) and Lightweight block plastering mortar (TPI m210)specifically formulated for their lightweight blocks, ensuring maximum performance and reducing the risk of cracks.
- Affordable Price: A cost-effective option that makes it easier to manage construction budgets.
- Strong and Durable: Meets TIS standards, ensuring reliable quality and durability.
- Suitable for: Contractors and homeowners looking for a compatible product system that offers great value.
How to Choose the Right Lightweight Concrete Blocks
Selecting the best lightweight concrete block depends on more than just the brand. Consider these factors as well:
1. Check for Standards: Always choose blocks certified by the Thai Industrial Standard (TIS 1505-2541) to guarantee quality.
2. Purpose of Use:
- For a cool, energy-efficient home, choose Q-CON
- For high safety and fire resistance, choose THAICON
- For strong, soundproof walls, choose Diamond Block
- For value and a compatible system, choose TPI
3. Size and Thickness: Select a size that fits your construction plans. The popular thickness for exterior walls is 10 cm and above, while 7.5 cm is common for interior walls.
4. Price and Transportation: Compare prices from various distributors and factor in delivery costs to get the best overall value.
Q: Do I need to use a special mortar for lightweight concrete blocks?
A: Yes, it is highly recommended. Mortars designed specifically for lightweight blocks contain additives that improve adhesion and have properties suited to the block's texture, resulting in a stronger wall with no cracks.
Q: Are metal wall ties necessary for lightweight concrete block walls?
- A: Absolutely. Installing metal wall ties every 2-3 layers to connect the wall to structural columns significantly increases the wall's strength and prevents long-term cracking.
Q: What is "curing" a lightweight concrete block wall?
- A: Curing is the process of lightly spraying the finished wall with water and letting it sit for 1-2 days before plastering. This prevents the blocks from absorbing water from the plaster too quickly, allowing the plaster to cure properly and achieve a stronger bond.
Calculation
Choosing the best lightweight concrete block in 2025 depends primarily on your project's specific needs. If a cool and comfortable home is the priority, Q-CON is the answer. For high safety standards, THAICON excels. For strength and soundproofing , Diamond Block is a great choice. And for cost-effectiveness with a complete system, TPI is a very attractive option. By considering the unique features of each brand along with other key factors, you can select the most suitable material to build your home efficiently and effectively.
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