GS Foam Concrete - Technical Information

What Is Foam Concrete?

Base Mix

Foam Additive

Foam Concrete

Base Mix

Foam Additive

Foam Concrete

Technical Information

GS Foam Concrete delivers high-performance, lightweight, and versatile foamed concrete solutions for a wide range of civil engineering and infrastructure applications. Below is an overview of the materials, processes, and technical specifications that underpin our products and services.

Base Material

Foam Additive

Foam Concrete Properties

Mix Designs

Testing

Base Material

Our foamed concrete starts with a slurry-type base material consisting of cement, sand, and water. The exact proportions are tailored to achieve the required strength, consistency, and flow characteristics.

Typically, the base material is supplied via ready-mix concrete trucks. We only procure base mix material from QSRMC or BSI accredited supplies to ensure quality, consistency, and ease of integration with our on-site foaming process.

Foam Additive

GS Foam Concrete use their own synthetic admixture Foampor FC and specially adapted foam generators to produce the foaming agent on site. This foam is injected directly into the base mix within the concrete mixer truck to manufacture our foamed concrete, with the volume carefully adjusted to achieve the target wet density. Unlike competitors who rely on bulky silos and batching plants, our compact system fits in GS Foam transit vans and requires only a ready-mix truck and a concrete pump if necessary. This approach provides:

Greater flexibility on-site

Minimal setup space

Rapid deployment for time-sensitive projects

Foam Concrete Properties

Once foamed, the concrete can be placed directly from the truck or via our adapted pump system. Key benefits include:

Self-compacting and self-levelling - reduces labour and equipment requirements

High bond strength - produces a cohesive, durable material

Lightweight - imposes minimal lateral loads on surrounding structures

Insulating properties - thermal and acoustic benefits

Visual appearance - develops a volcanic rock-like texture within 24 hours

Pumpable - highly fluid material than can be pumped over long distances

Fire Resistant - does not emit toxic fumes and acts as a thermal barrier at high temperatures

Foamed concrete achieves compressive strengths ranging from 0.5 to 18 N/mm², depending on:

Wet density

Cement content

Aggregate composition

Water-to-cement ratio

Mix Designs

GS Foam Concrete offers a wide range of established mix designs, supported by years of performance data, enabling us to meet the requirements of most applications.

We can also offer bespoke and specialist mix design options which include:

Ultra-lightweight cementitious only mixes

Non-shrink grouts

Environmentally-friendly, low carbon alternatives

Sulphur resistant options