Cement Concrete - Admixtures

Admixtures are added to a concrete mix either before or during its mixing to modify the properties of concrete like setting time, curing, temperature, colour or workability.

The use of Admixtures help to achieve the following objectives:

1. To reduce the cost of concrete construction.

2. To maintain the quality of concrete during different stages of concreting like mixing, transporting, placing and curing. 

Admixtures can be classified into the following five major categories:

  • Retarding admixtures
  • Accelerating admixtures
  • Super plasticizers
  • Water reducing admixtures
  • Air-entraining admixtures

Some other types could be regarded as:

  • Corrosion inhibitors
  • Shrinkage reducing
  • Colouring admixtures
  • Permeability reducers
  • Damp-proofing admixtures
  • Hydration control admixtures
  • Alkali-silica reactivity inhibitors

Concrete admixtures can be either of the following types:

Mineral admixture

Chemical admixture

You can also select from the following links of solved examples to get prepared for your exams like GATE and GRE.

Pin-jointed Truss
Solved Examples on Application of equilibrium equations to find support reactions; truss member forces by method joints and method of sections.

Overhanging beam
Solved examples on shear force and bending moment diagrams for cantilever, simply supported beam and overhanging beams.
indeterminate beam
Solved examples on deflection of beam and truss by different methods like doble integration, Macaulay's method, energy method (unit load method).

Indeterminate Frame
Solved examples on indeterminate structures by slope-deflection equation, moment distribution method, consistent deformation(compatibility)
reinforced concrete
Solved examples for determination of strength of reinforced concrete beams (singly reinforced and doubly reinforced).




Excellent Calculators

Stress Transformation Calculator
Calculate Principal Stress, Maximum shear stress and the their planes

Calculator for Moving Load Analysis
To determine Absolute Max. B.M. due to moving loads.

Bending Moment Calculator
Calculate bending moment & shear force for simply supported beam

Moment of Inertia Calculator
Calculate moment of inertia of plane sections e.g. channel, angle, tee etc.


Reinforced Concrete Calculator
Calculate the strength of Reinforced concrete beam

Moment Distribution Calculator
Solving indeterminate beams

Deflection & Slope Calculator
Calculate deflection and slope of simply supported beam for many load cases

Fixed Beam Calculator
Calculation tool for beanding moment and shear force for Fixed Beam for many load cases

BM & SF Calculator for Cantilever
Calculate SF & BM for Cantilever

Deflection & Slope Calculator for Cantilever
For many load cases of Cantilever

Overhanging beam calculator
For SF & BM of many load cases of overhanging beam

More Links

Civil Engineering Quiz
Test your knowledge on different topics of Civil Engineering

Research Papers
Research Papers, Thesis and Dissertation

List of skyscrapers of the world
Containing Tall buildings worldwide

Forthcoming conferences
Containing List of civil engineering conferences, seminar and workshops

Profile of Civil Engineers
Get to know about distinguished Civil Engineers

Professional Societies
Worldwide Civil Engineers Professional Societies

Keep visiting for getting updated or Join our mailing list

Search our website for more...

PleaseTell your Friends about us if you find our website useful

Other Useful Links

Join Our Mailing List