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

Mortar Properties01:17

Mortar Properties

110
Mortar properties encompass a range of characteristics crucial for construction and masonry work, including workability, water retention, bond strength, durability, compressive strength, volume change, and appearance. Workability refers to mortar's ability to be easily applied and manipulated without sagging or falling off surfaces, which is important for efficient masonry unit placement and alignment. Water retention is essential to prevent the mortar from losing moisture too quickly to...
110
Strength of Cement01:20

Strength of Cement

121
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...
121
Deleterious Substances in Aggregate01:25

Deleterious Substances in Aggregate

141
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.
Another type of impurity is clay and fine material that...
141
Testing Water Quality01:14

Testing Water Quality

103
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
103
Mortar01:29

Mortar

203
Mortar, a mixture of Portland cement, hydrated lime, sand, and water, is a crucial binding material in construction. Its primary function is to join masonry units together, filling gaps and ensuring a uniform distribution of weight across the structure. This helps in preventing potential weaknesses. Mortar also serves as a protective barrier against environmental elements such as water and wind, thereby safeguarding the interior of the structure. It also compensates for surface irregularities...
203
Effect of Sea Water on Concrete01:22

Effect of Sea Water on Concrete

163
Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks,...
163

You might also read

Related Articles

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

Sort by
Same author

Effect of CaO in Alkali-Activated Fly Ash Mortar Under Different Curing Temperatures.

Materials (Basel, Switzerland)·2025
Same author

Porous Mortars Incorporating Active Biochar from Olive Stone Waste and Recycled Masonry Aggregate: Effects of Accelerated Carbonation Curing.

Materials (Basel, Switzerland)·2025
Same author

Use of Milled <i>Acanthocardia tuberculate</i> Seashell as Fine Aggregate in Self-Compacting Mortars.

Materials (Basel, Switzerland)·2024
Same author

CO<sub>2</sub> Adsorption by CMK-3 at Low Temperatures and High Pressure to Reduce the Greenhouse Effect.

Materials (Basel, Switzerland)·2024
Same author

Use of Periodic Mesoporous Organosilica-Benzene Adsorbent for CO<sub>2</sub> Capture to Reduce the Greenhouse Effect.

Materials (Basel, Switzerland)·2024
Same author

Accelerated Carbonation of Vibro-Compacted Porous Concrete for Eco-Friendly Precast Elements.

Materials (Basel, Switzerland)·2023

Related Experiment Video

Updated: May 31, 2025

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

9.4K

Performance of Self-Compacting Mortars Using Ground Seashells as Recycled Sand.

Ágata González-Caro1, Antonio Manuel Merino-Lechuga2, David Suescum-Morales2

  • 1Department of Inorganic Chemistry, University of Córdoba, E.P.S of Belmez, Avenida de la Universidad s/n, E-14240 Córdoba, Spain.

Materials (Basel, Switzerland)
|January 25, 2025
PubMed
Summary
This summary is machine-generated.

Recycled Acanthocardia tuberculata seashells can replace natural sand in self-compacting mortar, enhancing durability. This sustainable approach benefits coastal industries by reducing waste and improving construction materials.

Keywords:
circular economyindustrial by-productmilled seashellsself-compacting mortarsiliceous filler

More Related Videos

Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests
05:36

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

Published on: March 7, 2025

185
Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior
11:07

Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior

Published on: June 27, 2018

11.0K

Related Experiment Videos

Last Updated: May 31, 2025

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

9.4K
Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests
05:36

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

Published on: March 7, 2025

185
Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior
11:07

Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior

Published on: June 27, 2018

11.0K

Area of Science:

  • Materials Science
  • Civil Engineering
  • Environmental Science

Background:

  • Construction industry relies heavily on natural sand, leading to resource depletion.
  • Coastal areas possess abundant seashell waste, posing disposal challenges.
  • Recycling seashell waste presents an opportunity for sustainable construction materials.

Purpose of the Study:

  • To investigate the use of milled Acanthocardia tuberculata seashells as a fine aggregate replacement for natural calcareous sand.
  • To evaluate the performance and durability of self-compacting mortar incorporating seashell aggregates.
  • To assess the viability of seashell waste for circular economy principles in construction.

Main Methods:

  • Three replacement levels (0%, 50%, 100%) of natural sand with seashell aggregates were tested.
  • Different powdered/sand ratios were studied.
  • Fresh properties (workability) and hardened properties (strength, density, porosity, water absorption, dimensional stability) were evaluated.
  • Advanced analyses included X-ray, thermogravimetry, and differential thermal analysis.

Main Results:

  • Mortar with seashell aggregates showed superior durability compared to natural sand.
  • A slight reduction in workability and mechanical strength was observed.
  • Key performance indicators like compressive strength, flexural strength, and porosity were analyzed at 28 days.

Conclusions:

  • Incorporating Acanthocardia tuberculata seashells into cementitious materials offers environmental advantages and supports the circular economy.
  • Seashell aggregates provide enhanced durability in self-compacting mortar.
  • This research promotes sustainable construction practices by utilizing coastal waste.