Bricks, ceramic structural material that, in modern times, is made by pressing clay into blocks and firing them to the requisite hardness in a kiln. It in their most primitive form were not fired but were hardened by being dried in the sun. Sun-dried were utilized for many centuries and are used even today in regions with the proper climate. Examples from approximately 5,000 years ago have been discovered in the Tigris-Euphrates basin, and the ancient races occupying this region may have been the first users of it. In Babylonia there was a lack of both timber and stone, and the thick clay deposited by the overflowing rivers was the only material adaptable to building. The Persians and the Assyrians used sun-dried blocks of clay for walls of great thickness, facing them with a protective coating of fired bricks. The Egyptians and the Greeks used bricks only to a limited extent, as they had access to plentiful supplies of stone and marble.
In this article Learn: tests for burnt clay bricks as per is:3495-1976,test for compressive strength,test for water absorption,Test for efflorescence. Tests for burnt clay bricks as per is : 3495-1976 tests for burnt clay bricks as per is : 3495-1976. are described below: 1. Test for compressive strength. According to Tests for burnt clay bricks as per…
DIFFERENT FORMS OF BRICKS Below are described a few important forms in which bricks are made in various shapes to suit the different situations in which they are used. 1. Ordinary bricks. These are ordinary bricks with rectangular faces and of standard size. 2. Perforated bricks. These bricks have cylindrical holes through their thickness (Fig….
In this Article Learn about: Burning of bricks,Clamp or Pazawah,Bulls trench kiln,Sequence operation of Bull’s trench kiln, Advantages and disadvantages of Bulls trench kiln,Hoffman’s Kiln,Advantages and disadvantages of Hoffman’s kiln. Burning of bricks After the bricks have dried in sun these are burnt in kilns to make them harder, stronger, denser, less absorbent and…
In this article learn about : completion of Drying operation of moulded bricks,moulded bricks,drying of bricks,drying operation,drying bricks, drying operation of moulded bricks Drying operation of moulded bricks Before burning of moulded bricks it is essential that the bricks have dried and have become sufficiently hard to be handled and stacked in clamps or…
Learn : Hand moulding,ground moulding and machine moulding of bricks MOULDING OF BRICKS Hand moulding,ground moulding and machine moulding of bricks Giving the required shape to the prepared brick-earth is known as moulding of bricks. There are two different ways of doing it: (i) Hand moulding, and (ii) Machine moulding. 1. Hand moulding ….
In this article Learn about: various operations involved in preparing brick earth,digging,weathering,blending and tempering. pug mill, mould, wooden mould, steel mould, PREPARATION OF BRICK-EARTH Following are the various operations involved in preparing Brick-earth. Digging. If the area from where soil is to be taken is grassy or has other vegetation then the top layer (about…
FIELD TESTS FOR SOILS FOR BRICK MANUFACTURE : Clay for brick making is prepared differently in a rural environment – manually in small brick yards – and near towns and urban areas mostly in large-scale factories employing heavy duty machinery and equipment. Since modern clay works, quite often cannot satisfy the demand for brick and tiles,…
In this article Learn about : Brick earth composition,{ clay(alumina), silt, sand}, functions of brick constituent (silica or sand, alumina, lime, magnesia, oxide of iron), harmful ingredients of brick (lime, iron pyrites,Pebbles of stone and gravel etc, Alkalies, Reh or Kallar) BRICKS EARTH Composition. A good brick-earth should be such that when prepared with water…
Learn : Bricks,Classification,Characteristics and its uses. (i)Sun-dried or Kacha bricks,(ii)Burns or Pucca bricks.(a)First class bricks (b)Second class bricks(c)Third class or pilla bricks, (d)Overburnt or Jhama bricks,Classification as per ISI. bricks as per ISI : 1077-1976,TABLE : Classes of Common Burnt Clay Bricks BRICKS Bricks are blocks of tampered clay moulded to suitable shapes and sizes while it is still…