Porosity and Pore structure of Construction materials | Free | Alison
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Measuring the Porosity and Pore structure of Construction materials

The free online course on distribution of pores in the volume of a material and validating electrochemical impedance.

Engineering
Free Course
This free online measuring the porosity and pore structure of construction material course will enlighten you on pore sizes, the distribution of pores in the volume of a material and its significance with respect to the kind of performance exhibited. You will learn how the influence of binding materials on the resistivity of the concrete plays a great role in enhancing the durability of special binder systems and advantages of alternating current
  • Duration

    4-5 Hours
  • Certification

    Yes
  • Mobile Friendly

    Yes
  • Publisher

    NPTEL
  • Accreditation

    CPD

Description

Modules

Outcome

Certification

View course modules

Description

This course will begin by introducing you to pore sizes, the distribution of pores in the volume of a material and their significance with respect to the kind of performance exhibited. You will explore the techniques used to assess the extent of porosity available in the system. This will lead you into mercury intrusion porosimetry and the testing method for a typical mercury intrusion test. You will learn about the intrusion chamber assembly with a layout of the pressure chamber where the sample holder or container is kept. Also, you will gain an understanding of what happens in cementitious systems with minor changes to the composition.

Next, this course explains how the influence of binding materials on the resistivity of the concrete plays a role in enhancing the durability of special binder systems. You will be introduced to issues with measurement of resistivity, porosity calculation, as well as studies on concrete and equivalent circuit modelling. This will lead you into corrosion as an electrochemical process, the principles of electrochemistry and the comparison between alternating current versus direct current methods.

Finally, you will learn how to measure corrosion current, the advantages of alternating current over direct current and how to conduct a corrosion test using two-electrode systems. You will then be exposed validating electrochemical impedance spectroscopy data using different techniques and how equivalent circuit modelling is formulated. Also, you will learn how you can set up an EIS test using three electrodes, the different types of EIS curves and the different types of artefacts which are considered to be distortions of EIS curve. Start learning today!

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Learning Outcomes

Having completed this course, you will be able to:


  • Describe how porosity and pore structure affects the density of material and the permeability of porous solids
  • Identify the types of porosity in construction materials
  • Analyze the distinction between a pore and void in relation to construction materials
  • Explain the meaning of mercury intrusion porosimetry
  • Identify the issues associated with mercury intrusion porosimetry
  • Explain how resistivity is highly dependent on the moisture condition of the concrete
  • Identify the several issues with measurement of resistivity
  • Describe how measurement temperature alters resistivity measurements
  • Explain how the interpretation of conductivity changes with time
  • Describe the effects of mineral admixtures on conductivity

Certification

All Alison courses are free to enrol, study and complete. To successfully complete this Certificate course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Certificate course, you have the option to acquire an official Certificate, which is a great way to share your achievement with the world. Your Alison Certificate is:

Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive for you to continue empowering yourself through lifelong learning

Alison offers 3 types of Certificates for completed Certificate courses:

Digital Certificate - a downloadable Certificate in PDF format, immediately available to you when you complete your purchase
Certificate - a physical version of your officially branded and security-marked Certificate, posted to you with FREE shipping
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