Sustainable ready mix concrete? With the ever-growing focus on sustainability, you may want to know if concrete sustainability is possible.
Flowmix have two plants, Tewkesbury, Gloucestershire and Aldridge, Walsall. We do everything we can to ensure our products stay ahead with sustainability where possible.
The construction industry is changing fast, with sustainability becoming a top priority. Sustainable ready mix concrete is no longer just an option—it’s necessary. With growing concerns about carbon emissions, resource depletion, and waste management, the industry is embracing greener alternatives.
Still, what exactly is sustainable ready-mixed concrete? How are companies reducing their environmental footprint while maintaining concrete strength and durability?
In this article, we’ll explore the latest eco-friendly concrete innovations and trends shaping the future of construction.
#1: Reducing Carbon Emissions with Green Concrete
Traditional ready mix concrete production is responsible for significant global CO₂ construction emissions.
It’s accountable for 1.5% of the UK’s total emissions and 8% globally. Experts predict that by the 2040s, concrete production could transform into a ‘carbon sink.’ (Source: ICE 2022 Report)
However, slowly, the rise of low-carbon concrete is changing the game.
- Cement alternatives like ground granulated blast-furnace slag (GGBS) and fly ash help cut carbon emissions.
- Carbon capture technology traps CO₂ and injects it into fresh, ready-mixed concrete, reducing its environmental impact.
- Companies are investing in energy-efficient production methods, reducing fossil fuel reliance.
Switching to sustainable ready mix concrete helps reduce the construction industry’s carbon footprint while maintaining high performance.
#2: Recycling and Waste Reduction in Concrete Production
One of the most significant advancements in eco-friendly concrete is a switch to using recycled materials. Instead of relying on virgin aggregates, manufacturers are incorporating:
- Recycled crushed concrete from demolished structures.
- Industrial by-products such as silica fume and slag (a by-product of smelting or refining metal ores) replace cement content.
- Recycled water in the mixing process to cut down on water waste.
These practices lower waste and improve the sustainability of ready mix concrete without compromising quality.
#3: Self-Healing Concrete: The Future of Durability
Cracked concrete is a major issue in construction, leading to costly repairs and reduced longevity. Fortunately, self-healing concrete is emerging as a game-changer.
- Bacteria-infused ready mix concrete can repair small cracks by producing limestone when exposed to water.
- Capsules of healing agents embedded in sustainable concrete release chemicals to fill cracks automatically.
By increasing durability, these innovations reduce the need for maintenance, making eco-friendly concrete even more sustainable in the long run.
#4: Energy-Efficient Concrete Mixing and Transport
Sustainability isn’t just about the material but also the process. The latest sustainable ready mix concrete trends focus on energy-efficient production and transport.
- Electric and hybrid cement mixers are reducing fuel consumption and emissions.
- On-demand concrete batching plants minimise waste by producing only what is needed.
- GPS tracking in delivery trucks optimises routes, cutting down on fuel use.
By improving efficiency, the industry is making low-carbon concrete more accessible and cost-effective.
#5: The Role of Smart Technology in Sustainable Concrete
Integrating smart technology further enhances the sustainability of ready mix concrete. Digital tools help improve accuracy, reduce waste, and boost efficiency.
- AI-powered mix designs ensure optimal material use, minimising excess.
- Real-time monitoring sensors in concrete improve curing efficiency.
- Automated batching systems reduce human error, ensuring consistent quality.
These advancements make eco-friendly concrete more reliable and adaptable to modern construction needs.
#6: The Rise of Geopolymer Concrete
Geopolymer concrete is an innovative, eco-friendly alternative to traditional concrete. Unlike standard ready mix concrete, which relies on Portland cement, geopolymer concrete is made using industrial by-products such as:
- Fly ash (from coal-fired power plants)
- GGBS (Ground Granulated Blast Furnace Slag) from steel manufacturing.
- Silica fume or other pozzolanic materials
These materials are activated using alkaline solutions (typically combining sodium hydroxide and sodium silicate), which trigger a chemical reaction known as geopolymerization. This process forms a strong, durable binder without the need for cement, significantly reducing CO₂ emissions—by up to a whopping 80% compared to traditional concrete.
Benefits of Geopolymer Concrete
- Lower carbon footprint – No Portland cement means reduced CO₂ emissions.
- High durability – It has excellent resistance to fire, chemicals, and extreme weather.
- Fast curing – Can achieve strength quickly, reducing construction time.
- Recycling potential – It utilises industrial waste, reducing landfill impact.
With its sustainability and strength, geopolymer concrete is gaining popularity in infrastructure projects, paving the way for a greener construction industry.
Conclusion
The demand for sustainability in ready mix concrete drives innovation in the construction industry. These trends are shaping a greener future, from low-carbon concrete and self-healing technology to smart batching and recycled materials.
By embracing eco-friendly concrete, builders and developers can reduce environmental impact without sacrificing quality or durability. As technology advances, sustainable ready mix concrete will become the new industry standard, ensuring a more responsible and resilient built environment.
How Flowmix Can Help With Your Project
Flowmix has two plants, Gloucester and Walsall. We provide ready-mix concrete, mix on-site and liquid screed.
In addition, you can hire a 200′ concrete line pump to reduce manual labour and associated costs, increase efficiency, reduce wastage and clean up. Moreover, we also provide interlocking concrete blocks for temporary or permanent barriers.
Flowmix has the BSA-approved Ready Mix Concrete Kitemark KM683844, a certification that “confirms a product or service’s claim has been independently and repeatedly tested by experts” (source BSI).
Flowmix Tewkesbury: 01684 217888 Flowmix Walsall: Tel: 01922 741731
FAQs About Sustainability in Ready Mix Concrete
What Makes Ready Mix Concrete Sustainable?
Sustainable ready mix concrete reduces its environmental impact using recycled materials, alternative cement blends, and energy-efficient production methods. Innovations like low-carbon concrete, self-healing concrete, and geopolymer concrete make it a greener choice for construction.
How Does Sustainable Ready Mix Concrete Reduce Carbon Emissions?
Manufacturers lower carbon emissions by:
- Using cement alternatives like fly ash and GGBS.
- Capturing and storing CO₂ within the concrete.
- Implementing energy-efficient batching and transport methods.
These efforts significantly cut down the carbon footprint of eco-friendly concrete.
Is Sustainable Concrete As Strong As Traditional Concrete?
Yes! Sustainable ready mix concrete meets or exceeds traditional concrete’s durability and strength. Many alternatives, such as geopolymer concrete, offer greater fire resistance andchemical durability, making them ideal for long-term projects.
Can Recycled Materials Be Used In Ready Mix Concrete?
Absolutely! Recycled aggregates, crushed concrete, and industrial by-products like slag and silica fume are commonly used in eco-friendly concrete. These materials help reduce waste while maintaining high performance.
Is Sustainable Ready Mix Concrete More Expensive?
Initially, some low-carbon concrete options may have a higher cost due to advanced technology and alternative materials. However, long-term savings come from improved durability, lower energy costs and reduced maintenance, making it a cost-effective choice over time.
