Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Bonding and Strength of Aggregate01:12

Bonding and Strength of Aggregate

248
The bond between aggregate particles and the cement matrix is significantly influenced by the shape and surface texture of the aggregates. High-strength concretes benefit from a rougher texture, which leads to stronger bonding due to greater adhesion. Angular aggregates with larger surface areas also enhance this bond. The bonding quality, however, is complex to assess as no universally accepted test exists. Good bonding is indicated when a crushed concrete specimen shows some aggregate...
248
Alkali Aggregate Reaction in Concrete01:26

Alkali Aggregate Reaction in Concrete

177
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...
177
Hydration of Cement01:24

Hydration of Cement

365
Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...
365
Aggregate Cement Ratio01:21

Aggregate Cement Ratio

306
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...
306
Porosity and Absorption of Aggregate01:20

Porosity and Absorption of Aggregate

379
Aggregates contain pores of varying sizes; while some are completely enclosed within the particles, others open onto the surface, allowing water to penetrate. The porosity of aggregates is a major factor contributing to the overall porosity of concrete, given that aggregates constitute about three-quarters of concrete's volume.
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
379
Strength of Cement01:20

Strength of Cement

209
Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
209

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Elastic and Electronic Properties of Alkali Charge-Balanced Calcium Aluminosilicate Hydrate Nanocomposites: A First-Principles Study.

ACS omega·2026
Same author

Ontogenetic skull variation in a round-headed Trogonophidae amphisbaenian species with inferences on bite force.

Anatomical record (Hoboken, N.J. : 2007)·2026
Same author

Magnesium-Calcium Exchange-Driven Elastic Properties of Alkali Charge-Balanced Aluminosilicate-Graphene Nanocomposites.

Nanomaterials (Basel, Switzerland)·2026
Same author

Influence of Heat Treatment on the Shaping Ability of Rotary Instruments in Severely Curved Root Canals: A Stepwise Analysis.

European endodontic journal·2026
Same author

Impact of Different Irrigation Needles on Debris Removal in Mesial Canals of Mandibular Molars After Conservative Preparation.

European endodontic journal·2026
Same author

Effects of highly leukotoxic Aggregatibacter actinomycetemcomitans associated with ligature-induced periodontitis on oral and gut tissues in male rats.

Journal of applied oral science : revista FOB·2026

Related Experiment Video

Updated: Aug 29, 2025

Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests
05:38

Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests

Published on: March 7, 2025

434

Bond Behavior of a Bio-Aggregate Embedded in Cement-Based Matrix.

Saulo Rocha Ferreira1, Rodolfo Giacomim Mendes de Andrade2, Gabriele Melo de Andrade1

  • 1Civil Engineering Department, Federal University of Lavras, C.P.3037, Lavras 37200-900, MG, Brazil.

Materials (Basel, Switzerland)
|September 9, 2022
PubMed
Summary

This study explored how a new bio-aggregate interacts with cement. Researchers compared it to a commonly used mineral aggregate by testing their bond strength. They found that while the mineral aggregate had stronger initial adhesion, the bio-aggregate softened more smoothly after reaching peak load. Microscopy confirmed structural differences that may explain this behavior. The bio-aggregate's smoother softening could be useful in construction materials that need to absorb energy. The findings suggest the bio-aggregate is a promising material but needs more testing before widespread use.

Keywords:
bio-aggregateimage analysislightweight concretemacaúba endocarpmechanical propertiesnumerical modelingbio-aggregate adhesioncement matrix bondingconstruction material testingsustainable construction materials

Frequently Asked Questions

More Related Videos

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability
09:27

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

Published on: April 22, 2016

17.5K
Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion
06:27

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion

Published on: September 12, 2019

9.6K

Related Experiment Videos

Last Updated: Aug 29, 2025

Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests
05:38

Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests

Published on: March 7, 2025

434
Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability
09:27

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

Published on: April 22, 2016

17.5K
Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion
06:27

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion

Published on: September 12, 2019

9.6K

Area of Science:

  • Cementitious material science
  • Construction material engineering
  • Sustainable construction materials

Background:

Current construction materials research seeks alternatives to traditional aggregates to reduce environmental impact. Conventional mineral aggregates, like granitic rock, dominate the industry but face sustainability challenges. Prior studies have explored bio-based materials for construction use, but their bond behavior with cement matrices remains unclear. This gap motivated the investigation of macaúba crushed endocarp as a potential bio-aggregate. The study aimed to compare its performance with a widely used mineral aggregate. Established knowledge includes the role of surface texture and chemical compatibility in bond strength. However, the unique properties of bio-aggregates have not been fully characterized. This paper contributes by analyzing the bond behavior of a novel bio-aggregate. The findings may inform sustainable material design in civil construction.

Purpose Of The Study:

The study aimed to evaluate the bond behavior between a new bio-aggregate and a cement-based matrix. The focus was on comparing this bio-aggregate with a commonly used mineral aggregate. The motivation stemmed from the need for sustainable construction materials. The researchers sought to understand how the bio-aggregate's structure affects its bond performance. They also aimed to assess the adhesion characteristics of the bio-aggregate. The goal was to determine if the bio-aggregate could serve as a viable alternative. The study's findings could guide future material development in the construction industry. The results may help identify the potential of bio-aggregates in cementitious applications.

Main Methods:

The researchers conducted physical, chemical, and image analyses of the bio-aggregate. They compared it with a granitic rock aggregate used in Brazilian construction. Pull-out tests were performed to evaluate bond behavior. The tests measured peak loads and post-peak softening characteristics. Image analysis focused on the outer structure of the bio-aggregate. The mineral aggregate served as a reference for comparison. The study combined mechanical testing with microscopy. The methods allowed a detailed assessment of adhesion and structural behavior.

Main Results:

The pull-out tests showed a similar linear elastic response for both aggregates. The mineral aggregate reached a higher peak load than the bio-aggregate. This suggested stronger chemical adhesion for the mineral aggregate. The bio-aggregate displayed a smoother post-peak softening behavior. Microscopy images supported the observation of the bio-aggregate's structure. The results indicated that the bio-aggregate's bond behavior is distinct. The smoother softening suggests better energy dissipation potential. These findings suggest the bio-aggregate could be useful in certain applications.

Conclusions:

The study found that the bio-aggregate's bond behavior differs from the mineral aggregate. The bio-aggregate showed a smoother post-peak softening response. This may be advantageous in applications requiring energy dissipation. The mineral aggregate had higher peak loads, indicating stronger initial adhesion. The researchers propose that the bio-aggregate could be a viable construction material. The findings suggest further investigation is needed for full validation. The results may guide the use of bio-aggregates in cementitious systems. The study highlights the potential of macaúba crushed endocarp as a bio-material.

The study found that the bio-aggregate showed a smoother post-peak softening behavior compared to the mineral aggregate.

Pull-out tests were used to assess the bond behavior of the bio-aggregate and mineral aggregate.

The smoother softening behavior suggests the bio-aggregate may be better at energy dissipation in structural applications.

Microscopy confirmed the structural characteristics of the bio-aggregate that influenced its bond behavior.

The mineral aggregate had a higher peak load, indicating stronger initial adhesion than the bio-aggregate.

The authors suggest the bio-aggregate could be a viable construction material with further investigation.