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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.
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Aggregate Cement Ratio01:21

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The Aggregate Cement ratio refers to the weight of aggregate divided by the weight of cement in a concrete mix. Altering this ratio has profound effects on the concrete's properties. This ratio plays a pivotal role in determining the strength, workability, and durability of concrete. When the Aggregate Cement ratio is higher, the mix is leaner, meaning it has less cement paste to lubricate the aggregate, potentially making the concrete less workable. Such mixes, known as lean, enhance the...
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Abrasion Resistance of Concrete01:23

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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.
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Additives and Fillers in Concrete01:29

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Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
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Alkali Aggregate Reaction in Concrete01:26

Alkali Aggregate Reaction in Concrete

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The alkali-aggregate reaction in concrete involves natural siliceous minerals in aggregates reacting with alkaline hydroxides derived from cement alkalis. This reaction forms an alkali-silica gel that absorbs water, swells, and increases in volume, which is confined by the surrounding cement paste, creating internal pressures that crack and disrupt the concrete. The extent of expansion and damage can be partly attributed to the alkali-silica reaction's osmotic hydraulic pressure and the...
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Deleterious Substances in Aggregate01:25

Deleterious Substances in Aggregate

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Deleterious substances in aggregates can be detrimental to the quality and durability of concrete. These substances include organic impurities like loam, which interfere with cement hydration and are usually present in the sand. These prevent a good bond between aggregate and cement paste. Organic impurities can be detected using the colorimetric test, where the darkness of a solution after agitation indicates the level of organic content.
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Updated: Sep 16, 2025

Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests
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Sustainable Concrete Using Ceramic Tile Waste as a Substitute for Brick Aggregate.

Kamal Hosen1, Alina Bărbulescu2

  • 1School of Ocean and Civil Engineering, Shanghai Jiao Tong University (SJTU), 800 Dong Chuan Road, Minhang District, Shanghai 200240, China.

Materials (Basel, Switzerland)
|July 12, 2025
PubMed
Summary
This summary is machine-generated.

This study shows that using waste ceramic tiles (CTW) as a replacement for coarse aggregate in concrete significantly improves mechanical strength and durability. This sustainable practice also offers environmental benefits by reducing landfill waste.

Keywords:
brick aggregate replacementceramic tile wasteconcrete performanceconcrete recyclingsustainable concrete

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Area of Science:

  • Materials Science
  • Civil Engineering
  • Environmental Science

Background:

  • Growing demand for sustainable construction materials.
  • Need to reduce landfill waste from construction and demolition debris.
  • Potential of recycled materials as substitutes for natural aggregates.

Purpose of the Study:

  • To investigate the mechanical properties of concrete incorporating waste ceramic tiles (CTW) as a partial replacement for coarse aggregate.
  • To assess the impact of CTW on concrete strength and durability.
  • To evaluate the environmental benefits of using CTW in concrete mixes.

Main Methods:

  • Concrete cubes were prepared using a 1:2:4 mix ratio and a 0.50 water-cement ratio.
  • Waste ceramic tiles (CTW) replaced coarse aggregate at percentages of 20%, 40%, and 70%.
  • Control specimens (CC) used conventional coarse aggregate. Samples tested at 14 and 28 days for mechanical properties and durability.

Main Results:

  • Concrete incorporating CTW showed a considerable increase in mechanical strength compared to conventional concrete.
  • Water absorption performance of concrete increased with the addition of CTW.
  • Optimized replacement levels of CTW can enhance concrete performance.

Conclusions:

  • Replacing brick chips with CTW in concrete mixes enhances mechanical strength and durability.
  • The use of CTW in concrete offers significant environmental advantages by diverting waste from landfills.
  • CTW is a viable sustainable alternative for coarse aggregate in concrete applications.