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Related Concept Videos

Mortar Properties01:17

Mortar Properties

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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...
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Slump Test01:20

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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...
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Mechanical Characteristics of Steel01:18

Mechanical Characteristics of Steel

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The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
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Classification and Mechanical Properties of Synthetic Polymers01:28

Classification and Mechanical Properties of Synthetic Polymers

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Synthetic polymers are classified as elastomers, fibers, or plastics based on their crystallinity. Crystallinity, the degree of long-range order in the solid state, influences the mechanical properties (stretching or contracting) of elastomers. Elastomers are flexible polymers that can expand or contract easily upon the application of an external force. They have numerous crosslinks that pull them back into their original shape when stress is removed. Silicones, for instance, are highly elastic...
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Microbial Bioremediation of Plastics

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Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
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Strength of Cement01:20

Strength of Cement

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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...
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Related Experiment Video

Updated: May 5, 2026

The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties
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Mechanical properties of Municipal Solid Waste by SDMT.

Francesco Castelli1, Michele Maugeri2

  • 1Geotechnical Engineering, Faculty of Engineering and Architecture, Kore University of Enna, 94100 Enna, Italy.

Waste Management (New York, N.Y.)
|November 21, 2013
PubMed
Summary

This study investigates the geotechnical properties of Municipal Solid Waste (MSW) using in situ seismic dilatometer tests. Results show promising correlations for assessing waste friction angle and shear wave velocity, validating the seismic dilatometer for MSW characterization.

Keywords:
Dilatometer Marchetti Test (DMT)Laboratory testsLandfillMechanical propertiesMunicipal Solid Waste

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Area of Science:

  • Geotechnical Engineering
  • Environmental Engineering
  • Waste Management

Background:

  • Municipal Solid Waste (MSW) characterization is crucial for landfill management and stability.
  • In situ testing methods for MSW are less documented than traditional soil investigations.
  • The seismic dilatometer (SDMT) offers potential for in situ MSW property assessment.

Purpose of the Study:

  • To analyze the geotechnical properties of MSW from the Cozzo Vuturo landfill.
  • To evaluate the applicability of the seismic dilatometer (SDMT) for MSW characterization.
  • To compare SDMT results with laboratory-derived waste properties.

Main Methods:

  • Geotechnical investigation of MSW at the Cozzo Vuturo landfill (Sicily, Italy).
  • In situ testing using the seismic dilatometer (SDMT).
  • Laboratory large-scale one-dimensional compression tests for comparison.

Main Results:

  • Preliminary results show promising correlations between SDMT data and MSW properties.
  • The friction angle of waste was effectively assessed.
  • Shear wave velocity was evaluated using S-wave measurements from SDMT.

Conclusions:

  • The seismic dilatometer (SDMT) shows potential for in situ geotechnical characterization of MSW.
  • Further research is needed to refine elastic parameter estimation using SDMT for MSW.
  • SDMT can provide valuable insights into the mechanical behavior of waste materials.