Technical Knowledge Center
In-depth guides, troubleshooting, and best practices
Foam Concrete Production Process: From Batching to Curing | Dwellfoam
Foam concrete production includes five stages: batching, foaming, mixing, pouring, and curing. Cement, water, and admixtures are mixed into slurry first, foaming agent is prepared into foam separately, then foam and slurry are blended, poured, and cured according to specifications. Dwellfoam outlines the key operations, common issues, and quality control methods for each stage.
Read GuideFoam Concrete Density, Strength, and Thermal Conductivity Reference Table | Dwellfoam
Density, compressive strength, and thermal conductivity in foam concrete are interrelated. Lower density gives better insulation but lower strength; higher density gives higher strength but higher thermal conductivity. Dwellfoam provides reference ranges for compressive strength and thermal conductivity across common density grades from 300 to 800 kg/m³, and explains how to choose density for different applications.
Read GuideFoam Concrete Mix Design Guide: How to Set Cement, Foaming Agent, and Water Ratios | Dwellfoam
Foam concrete mix design comes down to four decisions: target density, cement content, foaming agent dosage, and water-cement ratio. For 300–500 kg/m³ density, cement content usually ranges from 250–400 kg/m³, foaming agent dosage is adjusted by density and product instructions, and the water-cement ratio is kept at 0.4–0.5. Dwellfoam provides design steps, reference tables, and adjustment methods.
Read GuideCement vs Magnesia Foaming Agent: What's the Difference? A Dwellfoam Comparison Guide
The key difference between cement and magnesia foaming agents is alkali resistance and compatibility. Cement systems are closer to neutral and work with ordinary protein-based or synthetic agents, while magnesia systems are more alkaline and require alkali-resistant specialty agents, otherwise the foam breaks down. Dwellfoam compares the two across composition, foaming ratio, stability, and application, with selection advice.
Read GuideWhich Foaming Agent Should You Use for Foam Concrete? A Guide for Cement and Magnesia Systems
Choosing a foaming agent for foam concrete starts with the base material—cement or magnesia—then the target density and site conditions. For cement systems, prioritize protein-based or synthetic agents with good foam stability and low bleeding; for magnesia systems, choose alkali-resistant agents compatible with magnesia slurry.
Read GuideIs a Higher Foaming Ratio Always Better? Dwellfoam Explains a Common Foaming Agent Misconception
A higher foaming ratio is not always better. An excessively high ratio often means thinner foam walls and poor stability, leading to slumping and low strength after pouring. Dwellfoam recommends choosing a suitable ratio based on density requirements and base material, while also checking foam half-life and bleeding rate. This article explains reasonable foaming ratio ranges, the risks of going too high, and how to evaluate foaming agent quality comprehensively.
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