What is Bioconcrete used for?

When used in the construction of bridges, tunnels, and roads, bioconcrete has the potential to save billions on annual maintenance fees. At the moment, Jonkers is working to reduce the cost of the material for use in large-scale projects.

What is Bioconcrete made of?

Hendrik Jonkers and Erik Schlangen of Delft University of Technology encapsulated Bacillus pseudofirmus and Bacillus cohnii bacteria, along with a food source (calcium lactate), in biodegradable plastic and mixed the capsules into wet concrete.

Is Bio-concrete harmful?

These materials, as such, are not harmful to human health because the bacteria used in their production are ones such as Bacillus Sphaericus, Bacillus pasteurii, Bacillus subtilis and Bacillus lexus.

How long does bio-concrete last?

200 years
Active for long periods Endurance tests were recently carried out on bio-concrete to assess its durability and strength. Results show that the material is expected to last for over 200 years within its proper composition.

How is Bioconcrete made?

Bioconcrete can be defined as the concrete prepared by addition of bacteria with the capacity for precipitation of calcium carbonate (MICP), which aids in sealing the cracks that form in it, which is characterized as a self-healing property (Jonkers, 2011).

How much longer does self-healing concrete last?

Cracks of width 0.1 mm are completely healed after around 200 hours. Moreover, 0.2 and 0.3 mm width cracks are mostly healed within 30 days [25]. Cracks ranging in width from 0.15 to 0.3 mm significantly decrease in 7 days and are completely healed in 33 days [26].

How long does self-healing concrete last?

Rahbar predicts self-healing concrete could extend the life of a structure from 20 years, for example, to 80 years. Other research into creating self-healing concrete has focused on adding microbes and Bacillus megaterium, a spore-forming bacteria that produces an enzyme that is expelled into the concrete mix.

What is self-healing concrete made of?

Self-healing concrete is the most complex of the three products. The healing agent is made in a 95 per cent calcium lactate ratio to a five per cent ration of bacterial spores that are encapsulated within two-to four-millimetre wide clay pellets with separate nitrogen, phosphorous and a nutrient.

What are the downsides to using self-healing concrete?

Disadvantages

• Cost of self healing concrete is double than conventional concrete.
• Growth of any bacteria is not good in any atmosphere media.
• There is no is code or other code is available.
• Investigation of calcite precipitation is costly studied.
• Skilled labour is required.

Is self-healing concrete expensive?

It will come as three separate products: self-healing concrete, a repair mortar and a liquid repair medium. Unfortunately, the costs of the technology are still quite high, about €30-40 (about $33-44) per square meter. And as demand for the concrete increases, the price should decrease.

When was Bioconcrete invented?

The precursor to concrete was invented in about 1300 BC when Middle Eastern builders found that when they coated the outsides of their pounded-clay fortresses and home walls with a thin, damp coating of burned limestone, it reacted chemically with gases in the air to form a hard, protective surface.

How much does self-healing concrete cost?

It will come as three separate products: self-healing concrete, a repair mortar and a liquid repair medium. Unfortunately, the costs of the technology are still quite high, about €30-40 (about $33-44) per square meter.

What is Biobio concrete?

Bio concrete is a special type of concrete which can heal itself with the help of bacteria. It is also known as self healing concrete or bacterial concrete.

What are the uses of bio concrete in India?

As India is a developing country, impressive infrastructure plays an important role so bio concrete can be used in the construction of crack resistant and durable high rise buildings and underground constructions. Apart from this bio concrete can be used for constructing structures meant for irrigation.

What is a self healing concrete?

A self healing concrete investigation by Dutch scientists and they embedded concrete with limestone that produce bacteria. The microbiologist Henk Jonkers (Delfi university of technology) creates a self healing concrete. This innovation by Jonkers can solve a long withstand against concrete deteriorate.

Can concrete heal itself with bacteria?

Researchers from Delft Technical University in the Netherlands have developed concrete that can heal itself using special bacteria. Concrete is the most widely used building material in the world but is prone to cracks which means that it needs to be reinforced with steel and in some cases fixed or replaced when cracks expand too much.