Biomimetic Self-Healing Technology
A Reliable Solution for Enhancing Concrete Durability
Richlam® is a global pioneer in biomimetic intelligent concrete, renowned for advancing self-healing concrete technologies that fundamentally improve concrete durability. By mimicking the regenerative mechanism of bone tissue, Richlam® integrates crystalline growth factors into concrete to actively repair cracks and block harmful agents from penetrating the structure. This breakthrough integral waterproofing solution turns concrete into a self-protecting barrier that heals itself over time.
Richlam® believes that smart concrete will become a standard in future construction. We are dedicated to developing materials that can sense, adapt, and heal—bringing long-term value to people and infrastructure alike. Richlam® has made significant advances in self-diagnosing, temperature-adaptive, and crack-controlling concrete, while also leading innovations in crystalline self-healing admixtures, including extraction, synthesis, and commercialization. Our technologies significantly reduce post-cracking repair costs, generating substantial economic and social benefits.
The Future of Concrete Technology
Self-Healing Concrete as a Durability-Driven Solution
Concrete durability refers to a structure’s ability to withstand environmental stress over time. Due to its porous and brittle nature, concrete is prone to cracking, which opens pathways for water and aggressive chemicals to enter—leading to steel corrosion, carbonation, and degradation. Depending on the environment, durability threats vary: hydro-structures face carbonation; marine structures suffer from chloride and sulfate attack; municipal works deal with acid rain and pollutants.
Corrosion-related structural damage costs countries 3–5% of their GDP annually, with at least one-quarter resulting from reinforced concrete deterioration. Traditional solutions focus on scheduled repairs, which are costly, disruptive, and increasingly unsustainable. Experts now agree that durability must be built into the design stage of infrastructure projects.
American researcher Sitter proposed the “Rule of Five”:
For every $1 saved on rebar protection in design, expect $5 in rust repair, $25 in crack remediation, and $125 in full structural replacement.
Among all proposed durability strategies, biomimetic self-healing concrete stands out as the most promising. The American Concrete Institute (ACI) confirms that crystalline waterproofing admixtures represent one of the most effective approaches to concrete durability enhancement, especially when paired with integral waterproofing compounds.
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Built to Last,
Ready for the Future
Comprehensive Performance Enhancement
Resisting Harsh Environmental Deterioration
Durability depends on low permeability, crack resistance, self-repair, and chemical stability. Richlam®’s crystalline waterproofing admixtures address all of these areas, dramatically improving the overall performance of concrete.
Key Features of Richlam100 / Richlam200:
1. Permeability
Reduces porosity, seals 0.4-1.0 mm cracks, significantly lowers permeability.
2. Self-Healing
Hydrophilic and alkali-activated crystalline admixtures repair cracks up to 0.4-1.0 mm.
3. Corrosion Resistance
Lowers chloride ion penetration, protecting rebar.
4. Sulfate Resistance
Blocks sulfate ingress, prevents expansion and cracking.
5. Carbonation Resistance
Seals micro-capillaries, slows down CO₂ penetration.
6. Acid Resistance
Resists pH 3–11 chemical attack; ideal for wastewater, waste-to-energy, and petrochemical structures.
7. ASR Mitigation
Prevents alkali-silica reaction by eliminating internal moisture.
8. Freeze–Thaw Durability
After 200 freeze-thaw cycles, Richlam®-treated concrete shows no visible damage.
The Science of Durability
Richlam® Performance Test Results
Tests conducted according to ASTM standards confirm that Richlam® crystalline waterproofing admixtures significantly improve key indicators of durable concrete.
Test Index
Richlam®-Enhanced Concrete
Benefit to Durability
Shrinkage Rate
<115%
Reduces porosity and improves density
Crack Healing (Water Flow Rate %)
No water leakage
Seals cracks via crystallization waterproofing
Crack Width Self-Healed
0.4 – 1.0 mm
Automatic healing of fine and mid-size cracks
Carbonation Depth Reduction (28 days)
≥20%
Lowers CO₂ ingress, enhances carbonation control
Chloride Diffusion Coefficient
<4 × 10⁻¹² m²/s
Blocks Cl⁻ penetration, protects steel rebar
Sulfate Resistance
Strong
No internal expansion or cracking
Freeze–Thaw Strength Loss (200 cycles)
<80%
Improved frost durability
Compressive Strength
≥110%
Maintains or improves structural strength
Global Consensus on Self-Healing
Partner with Richlam® to Build the Future of Concrete
Since Abram discovered self-healing in 1925, scientists have explored ways to turn concrete into a living material. Today, only a few countries—like the U.S. and Japan—have achieved successful commercialization. Richlam® is proud to be at the forefront, offering solutions that rival the impact of lithography in semiconductors.
By integrating crystalline waterproofing admixtures into concrete, Richlam® enables self-perception, environmental adaptation, and autonomous crack healing. This innovation builds maintenance-free, durable concrete structures while drastically reducing long-term repair costs. Richlam®’s self-healing concrete technology is ideal for: structural self-waterproofing,carbonation control in alternating wet-dry environments, marine, coastal, and high-salinity zones, aggressive chemical environments.
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