1 w hat is the basis of the combined action of concrete and

1. w hat is the basis of the combined action of concrete and steel

Solution

Francoise coignet was a french industrialist of the 19th century.coingnet was the first to use iron reinforced technic for constructing building structures.Actually he is not use for means of getting strength for building but for keeping walls in monolithic construction from overturning.

The idea is that by combining two or more distinct materials one can engineer a new material with the desired combination of properties.The idea that a better combination of properties can be achieved is called the principle of combination action.

The most common large particle composite is concrete,made of cement matrix that combines with aggregates of different size.Cement was already know to the Egyptians and the Greek.Romans made cement by combining lime with volcanic ice.

Reinforced concrete is obtained by adding steel roads,wires with the concrete.steel has a advantage of thermal expansion coefficeint,so there is a reduce of carcking due to thermal stresses.

Reinforced concrete is classified as precast and cast in place concrete.

This is the basis of combination action of concrete and steel.