Concrete Block Wall

Last updated: August 2, 2018

What Does Concrete Block Wall Mean?

A concrete block wall is a wall made up of standard size concrete blocks. The standard size is 8 inches, however, depending on the design parameters and standards set by an engineer for the concrete structure, the block sizes may vary.

Like any other concrete structure, a structure made from concrete block is prone to concrete corrosion and thus concrete blocks are available with anti-corrosive coatings.


Corrosionpedia Explains Concrete Block Wall

A concrete block wall is made up of individual concrete blocks arranged in a proper manner. Just like any other concrete structure, these walls consist of steel reinforcement and may come into contact with water pipelines, sewage pipelines, or gases and therefore are subject to corrosion by electrochemical reactions due to attack by reactive liquids and gases.

Concrete corrosion in the concrete block wall can be caused by:

  • Salt water or acidic ground water
  • Microbes in sewer pipes
  • Sulphates
  • Chlorides
  • Nitrates
  • Fluorides
  • Sulphides
  • Industrial waste like slag and corrosive gases

Preventive measures include:

  • A paint application such as varnish, oil or lacquer-based paint
  • Surface treatment
  • Appropriate choice of cement mix and chemicals during cement production

The main advantage of constructing a wall using concrete blocks is that these blocks come pre-coated to prevent corrosion in the concrete block wall structure.


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