{"id":2383,"date":"2020-08-05T07:55:59","date_gmt":"2020-08-05T00:55:59","guid":{"rendered":"https:\/\/dufago.com.vn\/?page_id=2383"},"modified":"2026-03-16T14:59:01","modified_gmt":"2026-03-16T07:59:01","slug":"be-tong-nhe","status":"publish","type":"page","link":"https:\/\/dufago.com.vn\/en\/lightweight-concrete\/","title":{"rendered":"B\u00ca T\u00d4NG NH\u1eb8 (B\u00ca T\u00d4NG B\u1eccT KH\u00cd) DUFAGO"},"content":{"rendered":"
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SMALL CONCRETE (AERETED CONCRETE)<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\tREADY MIXED CONCRETE<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\tSUPPLY OF BUILDING MATERIALS<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Is your factory's roof, partition walls, or foundation bearing the added weight of traditional insulation? Lightweight concrete solves both problems simultaneously: reducing the building load to 350\u2013600 kg\/m\u00b3 while maintaining insulation, fire resistance, and long-term durability.<\/span><\/strong><\/p>

Dufago supplies lightweight concrete (aerated concrete) manufactured in a certified factory, delivered directly to construction sites throughout Central Vietnam \u2013 from Da Nang and Quang Nam to Quang Ngai.<\/span><\/strong><\/p>

What is lightweight concrete? How does it differ from regular concrete?<\/span><\/strong><\/p>

Lightweight concrete (or aerated concrete) is a type of concrete created by evenly distributing tiny air bubbles into a cement mixture, creating a characteristic porous structure that significantly reduces density compared to regular concrete.<\/span><\/p>

According to American Concrete Institute (ACI) standards<\/a><\/strong>This material is commonly used to reduce building load and improve thermal insulation.<\/span><\/p>
Lightweight concrete<\/th>Technical specifications<\/th><\/tr>
Proportion<\/td>350 \u2013 600 kg\/m\u00b3 (ordinary concrete: ~2,400 kg\/m\u00b3)<\/td><\/tr>
Compressive strength (28 days)<\/td>1.5 \u2013 2.5 MPa \u2014 suitable for applications not subjected to heavy loads.<\/td><\/tr>
Thermal conductivity<\/td>K = 0.1 W\/(mK) \u2014 superior thermal insulation compared to red brick.<\/td><\/tr>
Main ingredients<\/td>Clean water + PCB40 cement + Specialized foaming additive<\/td><\/tr>
Air bubble content<\/td>~60g foam \/ liter of cement water<\/td><\/tr>
Fire resistance<\/td>Non-flammable, no risk of fire or explosion, no toxic fumes.<\/td><\/tr><\/tbody><\/table>

Note:<\/strong><\/em> Lightweight concrete is not a substitute for load-bearing structural concrete (beams, columns, and slabs). Appropriate applications include: insulation layers, partition walls, lightweight leveling, and thermal insulation.<\/span><\/p>

Common applications of lightweight concrete in construction.<\/span><\/strong><\/h2>

Lightweight concrete is most effective in the following three application groups, suitable for both civil and industrial construction projects.<\/span><\/p>

Insulated roofs and floors<\/span><\/strong><\/h3>

Pouring lightweight concrete over concrete roofs or top-floor slabs completely replaces EPS or polyurethane foam. Its outstanding advantages include: non-flammable and no toxic substances released in case of fire \u2013 a crucial factor for industrial and apartment buildings.<\/span><\/p>

  • \u2013 Effectively reduces floor\/roof surface temperature thanks to a coefficient K = 0.1 W\/mK<\/span><\/li>
  • \u2013 No additional components needed; pour directly onto the existing floor surface.<\/span><\/li>
  • \u2013 The additional load on the structure is only 350\u2013600 kg\/m\u00b3 instead of 2,400 kg\/m\u00b3 for conventional concrete.<\/span><\/li><\/ul>

    Lightweight partition walls<\/span><\/strong><\/h3>

    Constructing partition walls using lightweight cast-in-place concrete or precast panels \u2013 suitable for factories, offices, and warehouses requiring flexible space division.<\/span><\/p>

    • \u2013 Reduces the load on floors and beams compared to conventional brick walls.<\/span><\/li>
    • \u2013 Better sound insulation than single-layer drywall due to its solid structure.<\/span><\/li>
    • \u2013 Fast construction \u2013 no plastering required if aesthetics are not a high priority.<\/span><\/li><\/ul>

      Industrial and infrastructure projects<\/span><\/strong><\/span><\/h3>

      Lightweight concrete is widely used in construction projects with specific load and temperature requirements:<\/span><\/p>

      • \u2013 The insulation layer for furnaces, kilns, and factories needs to maintain a stable temperature.<\/span><\/li>
      • \u2013 Leveling and infrastructure on weak soil \u2013 reducing the load on the foundation.<\/span><\/li>
      • \u2013 The subfloor for pipelines and utility trenches requires insulation.<\/span><\/li><\/ul>

        Comparing lightweight concrete with common insulation materials.<\/span><\/strong><\/span><\/h2>

        The comparison table below helps investors make an objective assessment before deciding on a material option:<\/span><\/p>
        Criteria<\/th>Lightweight concrete<\/th>EPS \/ Polyurethane Foam<\/th>Ordinary concrete<\/th><\/tr>
        Proportion<\/td>350\u2013600 kg\/m\u00b3<\/td>15\u201340 kg\/m\u00b3<\/td>~2,400 kg\/m\u00b3<\/td><\/tr>
        Thermal conductivity<\/td>K = 0.1 W\/mK<\/td>K = 0.03\u20130.04 W\/mK<\/td>K \u2248 1.6 W\/mK<\/td><\/tr>
        Fire safety<\/td>Fireproof<\/td>Flammable, produces toxic fumes.<\/td>Fireproof<\/td><\/tr>
        Long-lasting durability<\/td>High quality \u2014 does not rot or corrode.<\/td>Average \u2014 easily deformed<\/td>High<\/td><\/tr>
        Construction<\/td>Cast in place or precast.<\/td>Cutting and assembling requires glue.<\/td>Pour according to formwork<\/td><\/tr>
        Long-term costs<\/td>Low \u2014 reduces structural load, saves energy<\/td>Low initially, high upon replacement.<\/td>Height \u2014 increased foundation load<\/td><\/tr>
        Suitable for weak soil conditions<\/td>Very suitable<\/td>Other materials need to be combined.<\/td>Increased load<\/td><\/tr><\/tbody><\/table>

        Why choose Dufago's lightweight concrete pouring service?<\/span><\/span><\/strong><\/h2>

        Not every facility can control the uniformity of air bubbles in each batch. This is a crucial point that determines the actual density and insulation of the product \u2013 and it's where Dufago invests the most.<\/span><\/p>
        automatically<\/th>Supply information<\/th><\/tr>
        manufacturing plant<\/td>Four factories in Da Nang (Cam Le, Hoa Vang), Quang Nam (Chu Lai), and Quang Ngai (Tinh Phong) ensure timely delivery of lightweight concrete to Da Nang and the entire Central region.<\/td><\/tr>
        Quality control<\/td>Specialized foaming agent, density checked for each batch before shipment.<\/td><\/tr>
        Blending advice<\/td>We provide free assistance in calculating the appropriate mix ratios based on the load and insulation requirements of each project.<\/td><\/tr>
        Delivery<\/td>Specialized tanker trucks \u2013 delivered directly to construction sites in Da Nang, Quang Nam, and Quang Ngai, ensuring timely completion of projects.<\/td><\/tr>
        Scope of supply<\/td>Lightweight concrete in Da Nang, Quang Nam, Quang Ngai, and neighboring provinces in Central Vietnam.<\/td><\/tr><\/tbody><\/table>

        FAQ \u2013 Frequently Asked Questions about Lightweight Concrete<\/span><\/strong><\/h2>

        Can lightweight concrete withstand heavy loads?<\/span><\/strong><\/span><\/h3>

        Lightweight concrete achieves a compressive strength of 1.5\u20132.5 MPa after 28 days \u2013 sufficient for insulation, partition walls, and light leveling applications. However, it is not suitable for primary load-bearing elements such as beams, columns, and structural slabs. For these applications, conventional concrete or reinforced concrete should be used.<\/span><\/p>

        What is the appropriate density of lightweight concrete for insulated roofs?<\/span><\/strong><\/span><\/h3>

        For residential and light industrial roof insulation, a density of 400\u2013500 kg\/m\u00b3 is most common \u2013 balancing good insulation with sufficient rigidity for maintenance and foot traffic. Dufago provides specific advice based on the allowable load of each project.<\/span><\/p>

        Are lightweight concrete and aerated concrete different?<\/span><\/strong><\/h3>

        Essentially, they are the same product \u2013 'aerated concrete' describes the formation mechanism (air bubble distribution), while 'lightweight concrete' describes the properties (low density). In the Vietnamese construction industry, these two names are used interchangeably.<\/span><\/p>

        How long does it take to ship from Dufago?<\/span><\/strong><\/h3>

        Typically, delivery takes 24\u201348 hours after order confirmation for projects within the factory's service radius. For large projects requiring high volumes, Dufago schedules deliveries according to the construction schedule to avoid site disruptions.<\/span><\/p>

        Contact us for a quote on lightweight concrete in Da Nang and Central Vietnam.<\/span><\/strong><\/h2>

        The price of lightweight concrete (aerated concrete) depends on many technical factors and actual construction conditions. Unlike conventional structural concrete, lightweight concrete is designed according to its density and intended use, so the cost can vary from project to project.<\/span><\/p>

        If your project is in the design or construction preparation phase, this is the best time to calculate the options \u2013 before the formwork is erected.<\/span><\/p>

        Concrete density<\/span><\/strong><\/p>
        Proportion<\/th>Application<\/th><\/tr>
        350\u2013400 kg\/m\u00b3<\/td>Roof insulation, light leveling<\/td><\/tr>
        400\u2013500 kg\/m\u00b3<\/td>Insulated roof, technical floor<\/td><\/tr>
        500\u2013600 kg\/m\u00b3<\/td>Partition walls, areas requiring high rigidity.<\/td><\/tr><\/tbody><\/table>

        The higher the density, the greater the strength and the higher the material cost.<\/span><\/p>

        Concrete thickness<\/span><\/strong><\/p>
        Application<\/th>Thickness<\/th><\/tr>
        Residential roofs<\/td>8\u201312 cm<\/td><\/tr>
        Factory roof<\/td>10\u201315 cm<\/td><\/tr>
        Ground leveling<\/td>10\u201330 cm<\/td><\/tr><\/tbody><\/table>

        Construction volume<\/span><\/strong><\/p>

        Large-scale construction projects are often more cost-effective due to: reduced transportation costs, optimized mix design, and continuous construction.<\/span><\/p>

        In addition to lightweight concrete, Dufago also offers... ready-mixed concrete<\/strong><\/a> Dufago provides services for structural elements such as foundations, beams, columns, and slabs. We offer site surveys and quotations within 24 hours for projects in Central Vietnam.<\/span><\/p>