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Article source: Rozwerk? Concrete is the most widely used building material in the world
.
But it is prone to cracks, which means that the structure needs to be reinforced with steel bars
.
Some "micro cracks" will inevitably appear during the strengthening process, which will not directly lead to strength loss
.
The specifications used in the concrete industry allow for breaks with a width of approximately 0.
2 mm
.
But over time, water, along with aggressive chemicals, enters these cracks and corrodes the concrete, causing structural deterioration
.
? Microbiologist Henk Jonkers of Delft University of Technology (TUDelft) and cement development expert Eric Schlangen have developed a new type of concrete material that can heal itself
.
They mixed limestone, dormant bacterial spores, and nutrients needed for bacterial growth into traditional concrete materials.
When the concrete rocks crack and absorb water, the spores are activated, and the "bred" limestone components will automatically fill the gaps.
Prevent further weathering damage
.
It is said that this self-healing function can only compensate for cracks smaller than 0.
5mm.
Although it is not a "shaking feat", it can still play a very good preventive effect when the dyke of a thousand miles collapsed in an ant nest
.
Tunnels, basements, and highways have been in a humid environment for a long time.
This new technology may be able to solve more technical problems
.
? UK College of Architecture and Construction University of Greenwich Senior Lecturer Armstrong (Rachel Armstrong) said the plan is "the development of 'living material' milestone '
.
However, Armstrong also mentioned that "the production of calcite does not strengthen the concrete structure, but just prevents the cracks from continuing to expand
.
" In addition to this new invention, there have been many concretes with self-repairing functions in the past, but the results developed by the two men can repair cracks ten times longer than before
.
? The biggest problem at present is to increase production and keep prices down
.
Many companies and organizations are very interested in this invention, hoping to save long-term expenses by extending the life of the building, including the Dutch Ministry of Road Affairs.
.
? Two researchers estimate that the new product will be available in about two years
.
.
But it is prone to cracks, which means that the structure needs to be reinforced with steel bars
.
Some "micro cracks" will inevitably appear during the strengthening process, which will not directly lead to strength loss
.
The specifications used in the concrete industry allow for breaks with a width of approximately 0.
2 mm
.
But over time, water, along with aggressive chemicals, enters these cracks and corrodes the concrete, causing structural deterioration
.
? Microbiologist Henk Jonkers of Delft University of Technology (TUDelft) and cement development expert Eric Schlangen have developed a new type of concrete material that can heal itself
.
They mixed limestone, dormant bacterial spores, and nutrients needed for bacterial growth into traditional concrete materials.
When the concrete rocks crack and absorb water, the spores are activated, and the "bred" limestone components will automatically fill the gaps.
Prevent further weathering damage
.
It is said that this self-healing function can only compensate for cracks smaller than 0.
5mm.
Although it is not a "shaking feat", it can still play a very good preventive effect when the dyke of a thousand miles collapsed in an ant nest
.
Tunnels, basements, and highways have been in a humid environment for a long time.
This new technology may be able to solve more technical problems
.
? UK College of Architecture and Construction University of Greenwich Senior Lecturer Armstrong (Rachel Armstrong) said the plan is "the development of 'living material' milestone '
.
However, Armstrong also mentioned that "the production of calcite does not strengthen the concrete structure, but just prevents the cracks from continuing to expand
.
" In addition to this new invention, there have been many concretes with self-repairing functions in the past, but the results developed by the two men can repair cracks ten times longer than before
.
? The biggest problem at present is to increase production and keep prices down
.
Many companies and organizations are very interested in this invention, hoping to save long-term expenses by extending the life of the building, including the Dutch Ministry of Road Affairs.
.
? Two researchers estimate that the new product will be available in about two years
.
