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Related Concept Videos

Non-destructive Tests for Concrete Strength01:12

Non-destructive Tests for Concrete Strength

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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...
285
Slump Test01:20

Slump Test

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The slump test is a widely used method to measure the workability of concrete. It employs a 12-inch high truncated cone mold that tapers from eight inches at the base to four inches at the top. Before testing, the mold is securely attached to a flat base and dampened.
Concrete is poured into the mold in three layers to conduct the test. Each layer is compacted 25 times with a steel tamping rod, which has a five-eighths-inch diameter and a rounded end, to ensure even distribution and eliminate...
593
Flow Table Test01:12

Flow Table Test

430
The flow table test is an established method used to assess the workability of concrete, particularly useful for evaluating highly flowable concrete mixes. This test employs an apparatus that consists of a wooden board topped with a steel plate, collectively weighing 35 pounds. The board is connected to a base via a hinge and measures 27.6 inches on each side.
Concrete is placed within a truncated cone mold that is 8 inches high with an 8-inch base diameter and a 5-inch top diameter. The...
430
Vebe Test01:22

Vebe Test

342
The Vebe test is a method used to measure the workability of concrete, particularly effective for dry concrete mixes. This test employs a specific apparatus that includes a cylindrical chamber, a standard slump cone, and a transparent disc-shaped rider, all mounted on a vibrating table. The cylindrical chamber has dimensions of nine and a half inches in diameter and eight inches in height.
To conduct the test, concrete is placed into the slump cone. The concrete is filled in layers and...
342
Compacting Factor test01:22

Compacting Factor test

390
The compacting factor test is a method used to assess the workability of concrete. It is  especially suitable for concrete mixes containing aggregates up to one and a half inches in size. This test involves specialized equipment consisting of two truncated cone-shaped hoppers and a cylinder, all with polished interior surfaces to minimize friction.
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
390

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Updated: Nov 20, 2025

A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation
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Theoretical Studies and Implementation on the Temporary Data Storage Method for Cone Penetration Test.

Yanming Li1, Yuheng Shen1, Xiaoquan Wang1

  • 1School of Electronic and Control Engineering, Chang'an University, Xi'an 710064, China.

Sensors (Basel, Switzerland)
|January 20, 2021
PubMed
Summary
This summary is machine-generated.

A new cableless cone penetration test (CPT) system simplifies equipment and enhances data accuracy by using SD cards for storage. This wireless approach overcomes signal distortion and data loss issues common in traditional cabled CPT methods.

Keywords:
CPTcablelessdata accuracyunderground sensor

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Area of Science:

  • Geotechnical Engineering
  • Sensor Technology
  • Data Acquisition Systems

Background:

  • Traditional cone penetration test (CPT) systems rely on cables for data transmission.
  • Long cables in conventional CPT systems complicate setup and lead to signal distortion, affecting data accuracy.
  • Cable breaks in traditional systems can cause significant data loss.

Purpose of the Study:

  • To propose and evaluate a novel cableless cone penetration test system.
  • To simplify experimental equipment and improve the accuracy of data acquisition in CPT.
  • To overcome the limitations of signal distortion and data loss associated with cabled CPT systems.

Main Methods:

  • Development of a cableless CPT system utilizing an SD card for data storage.
  • Implementation of wireless data transmission for the CPT probe.
  • Conducting exploration experiments to validate the performance of the new system.

Main Results:

  • The cableless CPT system successfully collected experimental data.
  • Data collected by the new system showed consistency with traditional cabled CPT equipment.
  • The proposed cableless system demonstrated higher data accuracy compared to traditional methods.

Conclusions:

  • The cableless CPT system offers a simplified and more accurate alternative for soil property analysis.
  • The wireless approach enhances the reliability of data acquisition in geotechnical investigations.
  • This technology provides a more dependable method for analyzing the comprehensive mechanical properties of soil layers.