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Related Concept Videos

Design Example: Sustainability in Concrete Building01:26

Design Example: Sustainability in Concrete Building

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As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
206
Workability of Concrete01:25

Workability of Concrete

136
The workability of concrete is a crucial property that affects its handling, placing, and finishing during construction. It describes the ease with which concrete can be mixed, placed, compacted, and finished. Workability is primarily concerned with the concrete's movement and its ability to resist internal friction and external resistance from molds and reinforcements during the application process.
Concrete's workability is determined by its resistance to internal forces that arise...
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Waterproofing and Anti-Bacterial Admixtures in Concrete01:22

Waterproofing and Anti-Bacterial Admixtures in Concrete

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Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
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Concrete01:20

Concrete

404
Concrete is a vital construction material extensively used worldwide, primarily valued for its strength, durability, and versatility, which it provides for various structural designs. Concrete generally comprises ingredients like Portland cement, coarse gravel, fine sand, and water. Concrete can be mixed by simple hand methods or industrially at computer-controlled plants. The mixture consists of aggregates and a paste made from water and Portland cement. This paste coats the aggregates and,...
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Abrasion Resistance of Concrete01:23

Abrasion Resistance of Concrete

173
Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...
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Permeability of Concrete01:25

Permeability of Concrete

186
Permeability in the context of concrete refers to how easily liquids or gases can pass through the material. This quality is crucial for assessing the water-tightness and durability of concrete structures and their resistance to chemical attacks. Concrete permeability can be determined through comparative laboratory tests. These tests typically involve sealing a concrete specimen from the sides, applying water pressure to the top surface with pressure, and measuring the amount of water passing...
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Related Experiment Video

Updated: Aug 5, 2025

Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests
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Bioconcrete-Enabled Resilient Construction: a Review.

Gaurav Tyagi1,2, Mukund Lahoti3, Anshuman Srivastava2

  • 1Department of Civil Engineering, Jaypee Institute of Information Technology, Waknaghat, 173234, India.

Applied Biochemistry and Biotechnology
|March 28, 2023
PubMed
Summary
This summary is machine-generated.

Microbially induced calcium carbonate precipitation (MICCP) offers an eco-friendly solution for concrete crack repair. Bacteria precipitate calcium carbonate within cracks, enhancing durability and providing a sustainable alternative to conventional methods.

Keywords:
Bacteria-based crack healingCementitious compositesConcreteEncapsulating materialMicrobially induced calcium carbonate precipitation concrete (MICCP)

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Area of Science:

  • Materials Science
  • Civil Engineering
  • Biotechnology

Background:

  • Concrete's susceptibility to cracking compromises its durability.
  • Traditional crack repair methods are often labor-intensive and less sustainable.
  • Microbially Induced Calcium Carbonate Precipitation (MICCP) presents a novel, bio-based approach to concrete self-healing.

Purpose of the Study:

  • To provide a comprehensive review of Microbially Induced Calcium Carbonate Precipitation (MICCP) for concrete crack repair.
  • To systematize the intricacies of MICCP, covering materialization, testing, and recent advancements.
  • To examine practical aspects including bacteria selection, calcium sources, encapsulation, and curing techniques.

Main Methods:

  • Literature review of state-of-the-art research on MICCP in concrete.
  • Analysis of various MICCP components: bacterial strains, calcium sources, and aggregates.
  • Examination of crack induction, observation, and property analysis of healed concrete specimens.

Main Results:

  • MICCP utilizes bacteria's metabolic processes to precipitate calcium carbonate, effectively sealing cracks.
  • Latest advancements include optimized bacteria species, novel calcium sources, and effective encapsulation strategies.
  • Methodologies for crack assessment and property evaluation of healed concrete are detailed.

Conclusions:

  • MICCP is an eco-friendly, economical, and self-activated technology for autonomous concrete crack repair.
  • The review offers an implementation-ready guide to MICCP, highlighting its potential for enhancing concrete durability.
  • Further research into techno-economic limitations and tailored control over the bio-mimetic process is warranted.