Friday

Classification of Aggregate Based on Texture

Aggregate Classification Based on Texture

Classification of Aggregate Based on Texture


Based on texture, aggregates can be classified into

  1. Smooth Surface Texture Aggregate
  2. Rough Surface Texture Aggregate

Smooth Surface Texture Aggregate


These aggregate category are generally hard, dense and fine grained aggregates are smooth textured. These aggregates have lesser surface area because of lesser irregularities. When these aggregates are employed, lesser amount of cement is necessary for the lubrication purpose. 

With there is  increase in surface smoothness, the contact area also decreases. This means a highly polished particle will have less bonding area with the matrix. Due to less water requirement, these produce high compressive strength but with poor bonding and interlocking. 

Rough Textures Aggregate

Rough textured aggregate have higher strength in tension. These help in developing bond strength in tension. These will develop lower compressive strength. 

Influence of Texture of Aggregate on the Strength of the concrete

The influence of smooth and rough aggregates on the water cement ratio, the 28th day flexural strength and Compressive Strength (MPa) is shown in table-1 below.

Table.1: Influence of Texture of Aggregate on Strength of Aggregate


Particle Percentage
W/C Ratio
28th Day Flexural Strength
28th Day Compressive Strength
Smooth
Rough
100
0
0.54
4.3
34.8
50
50
0.57
4.6
32.1
0
100
0.64
4.8
29.5




About Us

This is a center to bring up and collect all bits of knowledge and technologies flourished and flourishing to reach out for those who wish to acquire knowledge in a broader way. I am a structural engineer by profession and would like to share all information I have acquired all these years till date. This site also aims in researching new topics, works on your questionnaires and fill it up with good facts and information.

Contact Form

Name

Email *

Message *