Characteristics of Fresh concrete

Homogeneity

At the time of manufacturing a concrete we have to mix a liquid with several solids of different nature and size. The mixture must be perfect and homogeneous, that means it shouldn't be separated particles of gravel on one side and particles of sand on other side.

We must care our concrete at the time of commissioning for having homogeneous mixture.

Plastic Retraction

The retraction is the decrese of volum that sufers the conglomerate in the fase of settle or first stage of hardness due to the evaporation of water.

The factors that could be included are:

• High doseof cement.(> retraction)
• High surface of the piece.( > retraction)
• The hot weather and dry air.( > retraction)
• Use of Admixtures to reduce the contraction.( < retraction)
• Prevent the reduction of water by curing well. (< retraction)

Docility

This is join properties to facilitate commissioning for fresh mixture, with the measures of proper compactation.

The docility depends on:

• Cement:- Increses with high quantity and fineness.
• Aggregates:- Fine aggregate incresses docility.
• Water:- High quantity of water will give more docility.
• Admixtures:- You could have it with them by using appropriate admixtures.