How to Test Water Absorption of bricks

How to test Water Absorption of bricks

Testing the water absorption of bricks is crucial to understanding their exceptional and suitability for construction projects. Bricks with excessive water absorption can result in durability troubles, while those with decrease absorption are generally more resilient. In this newsletter, we’ll manual you thru simple methods to as it should be decide the water absorption of bricks. These insights will assist you’re making informed decisions while choosing bricks to your construction wishes.

Why Water Absorption of Brick Matters

Watеr absorption is a important componеnt that impacts thе strеngth and sturdinеss of bricks. Bricks with еxcеssivе watеr absorption havе a tеndеncy to bе grеatеr porous and making thеm suscеptiblе to frееzе thaw damagе and structural instability. By mеasuring watеr absorption and you may gaugе thе brick’s rеsistancе to moisturе and thе potеntial dangеrs associatеd with using it in uniquе applications.

Determine the How to Test Water Absorption of bricks


The experiment aims to determine the percentage water absorption of bricks, helping in selecting bricks suitable for various construction projects.

Standard Reference

This experiment follows the ASTM C67 standard for testing water absorption of bricks.


The aim is to quantify the water absorption capacity of bricks using standardized methods.


  • To understand the relationship between water absorption and brick quality.
  • To compare different bricks for their water absorption characteristics.


Thе watеr absorption takе a look at is a prеfеrrеd takе a look at usеd to еvaluatе thе high quality of bricks an’ dеcidе thеir suitability for usе in crеation. Bricks with low watеr absorption arе prеfеrrеd for usе in rеgions with high moisturе or prеcipitation.


  1. Brick
  2. Water in Bucket
  3. Oven
  4. Weight Balance
  5. Timer


  1. Weigh the dry brick and record its weight (wd)
  2. Immerse the brick in water for 24 hour
  3. After 24 hours, take away the brick from the water and wipe off any excess water from the
  4. Weigh the brick again and record its weight (ws)
  5. 5. Calculate the water absorption of the brick using the formula


Formula for water absorption in brick

The formula for calculating water absorption in brick is:

Water absorption = [(Ws – Wd) / Wd] x 100

  • Ws = weight of the wet brick
  • Wd = weight of the dry brick

In which Wd is the dry weight of the brick and Ws is the load of the brick after it’s been submerged in water for a selected duration, commonly 24 hours.

To use this formula, the brick ought to be dried and weighed to decide its initial dry weight (Wd). Then, it must be submerged in water for twenty-four hours and weighed again to decide its wet weight (Ws). The difference among the 2 weights divided by means of the dry weight and elevated via 100 will supply the proportion of water absorbed by way of the brick.


The water absorption test presents insight into the porosity of bricks. Lower water absorption indicates better quality bricks with higher durability, making them suitable for construction in various environments.


  • Choose bricks with lower water absorption for projects that require high durability.
  • Regularly test bricks from different batches to ensure consistent quality.
  • Consider the weather and reason of the structure when deciding on bricks primarily based on water absorption.

Faq  Schema Questions and Answers

What does a higher water absorption percentage indicate?

A higher water absorption percentage indicates that the brick is greater porous and might absorb and retain a larger amount of water. This could lead to structural troubles, decreased electricity, and expanded susceptibility to climate-associated harm.

How does water absorption affect brick quality?

Lower water absorption is generally preferred for higher quality bricks. Bricks with lower water absorption, as a result, are less likely to crack, freeze, or degrade over time. This characteristic makes them more suitable, especially, for construction in various conditions.”

How does water absorption relate to brick porosity?

Water absorption is at once related to brick porosity. Bricks with higher porosity have a tendency to have extra water absorption, that could effect their typical excellent and overall performance in creation.

What does the water absorption percentage indicate?

The water absorption percentage indicates the amount of water a brick can absorb. Lower percentages generally suggest better quality and higher durability.

Read More Also

Standard and Various Brick Sizes 

Brick Size Standards Around the World

Storage of Cement

12 Lab test on water bound macadam road to check quality

Leave a Comment