Characteristics of Hardened Concrete You Should know

following are the properties of hardened concrete has a number of properties, including:

Mechanical strength, in particular compressive strength.
The strength of normal concrete varies between 25 and 40 MPa. Above 50 MPa, the term High Performance Concrete and self healing concrete is used (50 MPa corresponds to a force of 50 tonnes acting on a square with sides of ten centimetres).

Concrete is extremely resistant to the physico-chemical attack emanating from the environment (frost, rain atmospheric pollution, etc...) It is particularly well-suited for structures exposed to demanding and extreme conditions.

Porosity and density.
These properties are responsible for the first two. The denser (or the less porous) the concrete the better its performance and the greater its durability.
The density of concrete is increased by optimizing the dimensions and packing of the aggregate and reducing the water content.

Fire resistance.

Thermal and acoustic insulation properties.


Types of Bricks You should know about

There are many  Classification of Bricks base on the method of manufacturing. Brick manufacture in different types of methods with a different kind of machines and handmade. And there are two major types of bricks from the old traditional construction field. They are Burnt bricks and Unburnt bricks.
Classification of BricksBurnt Bricks andUnburnt Bricks Burnt Bricks The Burnt Bricks uses in all types of construction works. Burnt Bricks burnt in clamps or in kilns. It classifies into four major categories. They are,
First Class BricksSecond Class BricksThird Class Bricks andFourth Class Bricks. 1. First Class Bricks
First Class Bricks molds with standard shape and size. They have sharp edges and regular shapes with a smooth surface. It is in copper color and free from cracks, voids and other foreign matters in it. It gives a clear ringing sound struck with another brick. And there is no need of plastering first class bricks. It uses in high-quality permanent structures and for decorati…