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

Porosity and Absorption of Aggregate01:20

Porosity and Absorption of Aggregate

386
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...
386
Permeability of Concrete01:25

Permeability of Concrete

204
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...
204
Porosity in Cement Paste01:18

Porosity in Cement Paste

216
The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
The balance of water to cement in the mix is...
216
Non-destructive Tests for Concrete Strength01:12

Non-destructive Tests for Concrete Strength

184
The rebound hammer test, also known as the Schmidt hammer test, is a non-destructive technique for evaluating the hardness of concrete and, indirectly, the strength of concrete. It operates on the principle that the rebound of a spring-driven mass from a concrete surface correlates to the surface's hardness. The device comprises a mass within a tubular housing, a spring mechanism, and a plunger that strikes the concrete. Upon release, the energy imparted to the mass by the spring causes it...
184
The Soil Ecosystem02:23

The Soil Ecosystem

21.6K
Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:
21.6K
Pore Size Distribution01:23

Pore Size Distribution

205
In concrete, the pore size distribution significantly influences the material's properties. Capillary pores, markedly larger than gel pores, form a vast network within partially hydrated cement paste, reducing the concrete's strength and increasing its permeability. This heightened permeability leads to a greater risk of damage from environmental factors like freeze-thaw cycles and chemical attacks, with the extent of vulnerability also being tied to the water-to-cement ratio.
Adequate...
205

You might also read

Related Articles

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

Sort by
Same journal

Effects of audio guided loving kindness meditation on psychological well being and laboratory stress responsiveness in healthy university students.

Scientific reports·2026
Same journal

Adaptive cognitive driven cross modal network for few shot fine grained recognition.

Scientific reports·2026
Same journal

Tegoprazan-based dual therapy versus bismuth-containing quadruple therapy for Helicobacter pylori eradication: a prospective, multicenter, open-label, non-inferiority, randomized controlled trial.

Scientific reports·2026
Same journal

Primary tumor resection prior to peptide receptor radionuclide therapy is associated with improved survival in metastatic gastroenteropancreatic neuroendocrine tumors: a systematic review and meta-analysis.

Scientific reports·2026
Same journal

Sleep duration among medical students and its association with bronchial asthma, anxiety, and depression.

Scientific reports·2026
Same journal

MGMT deficiency augments STING-mediated inflammatory responses accompanied by metabolic alterations in macrophages.

Scientific reports·2026

Related Experiment Video

Updated: Sep 4, 2025

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.
07:32

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.

Published on: June 4, 2021

5.3K

Cone penetration index for soil behaviour type prediction.

Denilson José Ribeiro Sodré1

  • 1Faculty of Civil Engineering, Federal University of Pará, UFPA, Belém, Pará, Brazil. dsodre@ufpa.br.

Scientific Reports
|July 20, 2022
PubMed
Summary

This study introduces new soil behavior type indexes for classifying soils using cone penetration tests. These improved indexes enhance accuracy in soil profiling compared to existing methods.

Area of Science:

  • Geotechnical Engineering
  • Soil Mechanics
  • Geophysical Methods

Background:

  • Cone and piezocone penetration tests are used for soil classification.
  • The normalized cone resistance (Qtn) and friction ratio (Fr) chart is a reliable method.
  • Existing soil behavior type indexes for this chart have limitations and introduce errors.

Purpose of the Study:

  • To develop new, more accurate soil behavior type indexes for the Qtn-Fr chart.
  • To improve the representation of soil type zones in penetration testing data.
  • To enhance the practical application of cone penetration test-based soil classification.

Main Methods:

  • Proposed new indexes using an analytical approach based on concentric logarithmic spiral approximation.
  • Developed new indexes using a numerical approach based on exponential function approximation.

More Related Videos

Author Spotlight: Advancing Agricultural Land Ecosystem Research with a Hydraulic Property Analyzer to Assess Soil Health
07:21

Author Spotlight: Advancing Agricultural Land Ecosystem Research with a Hydraulic Property Analyzer to Assess Soil Health

Published on: August 9, 2024

1.1K
A Bending Test for Determining the Atterberg Plastic Limit in Soils
08:16

A Bending Test for Determining the Atterberg Plastic Limit in Soils

Published on: June 28, 2016

20.5K

Related Experiment Videos

Last Updated: Sep 4, 2025

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.
07:32

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.

Published on: June 4, 2021

5.3K
Author Spotlight: Advancing Agricultural Land Ecosystem Research with a Hydraulic Property Analyzer to Assess Soil Health
07:21

Author Spotlight: Advancing Agricultural Land Ecosystem Research with a Hydraulic Property Analyzer to Assess Soil Health

Published on: August 9, 2024

1.1K
A Bending Test for Determining the Atterberg Plastic Limit in Soils
08:16

A Bending Test for Determining the Atterberg Plastic Limit in Soils

Published on: June 28, 2016

20.5K
  • Compared new indexes against existing methods using a case study for soil profiling.

    • Main Results:

    • The new indexes significantly improve the reproduction of soil type zones on the Qtn-Fr chart.
    • The proposed indexes maintain the robustness of the original cone penetration test classification method.
    • The study demonstrates improved soil profiling accuracy with the new indexes.

    Conclusions:

    • New soil behavior type indexes offer a more accurate method for soil classification using penetration tests.
    • The developed indexes address the limitations of current methods, reducing errors in soil profiling.
    • This research contributes to more reliable geotechnical site investigations through enhanced soil characterization.