Çareseriyên pîşeyî yên li ser lêzêdekirina betonê, Beton Foaming Agent, Superplasticizer, CLC Blocks Additives, û makîneya kefkirinê
The Core Choice: Is 1000 kg/m³ Foamed Concrete Right for You?
Foamed concrete at 1000 kg/m³ is a structural, lightweight screed. It is not a universal solution. This density offers a specific balance: enough strength for most residential and commercial floors, while providing insulation and weight savings that traditional sand-cement screeds cannot match. The decision hinges on your project’s specific needs for load, thermal birêvebirinî, and subfloor condition. If you need a fast-drying, insulating layer that reduces dead load, this is your material. If you need extreme point load resistance or are working on a perfectly sound, non-porous substrate, look elsewhere.
Foamed Concrete vs. The Competition: Berawirdek Zelal
Choosing a floor levelling method is a technical decision. Relying on habit is expensive. The table below provides a direct, objective comparison based on core performance criteria for renovation and new construction.
| Criteria | Foamed Concrete (~1000 kg/m³) | Traditional Cement-Sand Screed (2000+ kg/m³) | Self-Levelling Compound (SLU) |
|---|---|---|---|
| Primary Strength | Compressive: 5-10 MPa. Good for distributed loads. | Compressive: 15-25 MPa+. Excellent for high point loads. | Compressive: 15-30 MPa. High early strength. |
| Avantaja Key | Lightweight, superb thermal/acoustic insulation, flowable. | High compressive strength, low material cost, familiar. | Rapid setting, very thin applications, ultra-smooth finish. |
| Fatal Flaw | Lower tensile strength. Requires a stable, bonded substrate. | Very heavy, prone to shrinkage cracks, poor insulation. | Expensive at thickness >25mm, can be brittle. |
| Ideal Application | Leveling over weak substrates, insulating toppings, radiant heat systems, refurbishment. | Ground floors on compacted hardcore, heavy-duty industrial. | Final surface levelling over a solid base, under thin vinyl or carpet. |
| Drying/Curing Time | ~1 day/cm thickness for walking. Full cure/c drying: 4-6 weeks. | ~1-2 days/cm for walking. Full drying: 1 day/mm (long). | Walkable in 4-6 saetan. Ready for flooring in 24-72 saetan. |
| Installation Skill | Moderate-High. Requires pump, precise mix control, and proper priming. | Low-Moderate. Labor-intensive, skill-dependent for flatness. | Low. Poured and spread, but sensitive to substrate prep. |
The Niche Where Foamed Concrete Dominates
The data shows a clear winner for specific scenarios. YEK 2023 report from the International Lightweight Concrete Association notes a 40% increase in use of 1000-1200 kg/m³ mixes for refurbishment, citing weight and insulation as the dual drivers. As expert installer Marco Rossi states: “On old timber joist floors or above occupied apartments, foam concrete is the only responsible choice. You get a level, insulated floor without overloading the structure. Nothing else does both.” Its air-entrained structure provides a thermal conductivity (k-value) around 0.2-0.3 W/mK, outperforming traditional screed by over 50%. This makes it a superior choice when levelling a floor is also your chance to improve building energy efficiency.
Making It Work: Installation & Long-Term Performance
Success with foamed beton is procedural. Ignore preparation at your peril.
Non-Negotiable Subfloor Preparation
The substrate must be sound, pak, and primed for adhesion. This is not a decorative topping; it is a structural layer. Key steps:
- Assess Structural Integrity: The subfloor must be rigid. Fix any loose boards or cracks in a concrete base.
- Clean and Vacuum: Remove all dust, grease, û latan. The primer must bond to the substrate, not the dirt.
- Apply a Bonding Primer: Use a slurry primer specified for lightweight concrete. This prevents the porous foam concrete from sucking moisture from the mix and de-bonding. This step is critical and often skipped.
- Install Perimeter Insulation Strip: This decouples the screed from walls, accommodating thermal movement and preventing crack transmission.
The Pour and The Cure
Placement is typically via a hose from a specialist pump truck. The material flows easily but should not be over-worked. Aim for a thickness between 40mm and 100mm for levelling applications. Thinner sections risk fragility; thicker sections require professional thermal calculation. After pouring, it will set enough to walk on in 24-48 saetan. Lebê, full qawet development and moisture reduction (zuhakirin) takes weeks. The common industry mistake is installing moisture-sensitive floor coverings like wood or vinyl too soon. Use a moisture meter. Wait until relative humidity in the screed is below 75% RH, or as specified by your flooring manufacturer. The closed-pore structure of good foamed concrete reduces shrinkage cracking, but proper curing-covering with polyethylene sheeting for 3-7 days-is essential to prevent surface craze cracking.
Solving the Leveling Problem
When your project profile matches the niche-lightweight, insulating, flowable leveling over a prepared substrate-the choice becomes obvious. The process starts with a precise site evaluation and material specification. For this, partnering with a supplier who provides technical mix design support is crucial. A quality-controlled pre-batched foamed concrete mix, delivered by a knowledgeable pump operator, turns a complex material into a simple, on-site solution. This ensures you achieve the designed density of 1000 kg/m³ and the corresponding performance for floor leveling, guaranteeing the insulation and load-bearing properties your project requires.
Suppiler
Em rêberê gerdûnî ne di betonê sivik û çareseriyên kefên endezyarî yên pêşkeftî de. Li cîhanê ji bo pabendbûna xwe ya lêkolînê tê zanîn, nûkirinî, û pisporiya sepandî, me ji destpêka sala 2012-an ve çareseriyên kefên endezyarî peyda dikin.
Em dikarin li çaraliyê cîhanê hilberên pêvekirî yên betonê yên bi qelîte û hilberên pêvekirî peyda bikin.
Pargîdanî xwedan beşa teknîkî ya profesyonel û beşa çavdêriya kalîteyê ye, laboratûwarek baş-pêkhatî, û bi alavên ceribandinê yên pêşkeftî û navenda karûbarê xerîdar a piştî firotanê ve hatî çêkirin.
Ger bala we dikişîne, ji kerema xwe xwe azad hîs bikin û bi me re têkilî daynin.