BRICK PPT

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BRICKS:

BRICKS sneha110 BRICKS PRESENTING BY

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BRICK

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1.BRICK IS AN BUILDING MATERIAL. 2.THIS MATERIAL IS USED FOR CONSTRUCTION BECAUSE OF BEING CHEAP ,DURABLE AND EASY TO HANDLE AND WORK WITH 3.CLAY BRICKS ARE USED FOR BUILDING- UP EXTERIOR INTERIOR WALLS PARTITIONS,FOOTINGS AND OTHER BRICK

DIMENSIONS OF BRICK:

DIMENSIONS OF BRICK A BRICK IS RECTANGULAR IN SHAPE AND SIZE THAT CAN BE CONVINIENTLY HANDLED WITH ONE HAND LENTH OF BRICK =2 X WIDTH OF BRICK+TCKNESS OF MORTOR HEIGHT OF BRICK=WIDTH OF BRICK STANDARD SIZE OF A BRICK 19 X 9 X 9 CM

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CLASSIFICATION OF BRICKS

FIRST CLASS BRICKS:

FIRST CLASS BRICKS THESE ARE THOROUGHLY BURNT AND OR OF DEEP RED ,CHERRY COLOUR. THESE SHOULD BE FREE FROM FLAWS ,CRACKS AND STONES. THE SURFACE SHOULD BE SMOOTH AND RECTANGULAR ,WITH PARALLEL ,SHARP AND STRAIGHT EDGES AND SQUARE CORNERS THESE SHOULD HAVE UNIFORM TEXTURE WATER ABSORPTION SHOULD BE 12-15% OF ITS DRY WEIGHT WHEN IMMERSED IN COLD WATER FOR 24 HOURS. USES : THESE BRICKS ARE RECOMMENDED FOR POINTING,EXPOSED FACEWORK IN MASONRY STRUCTURES.

SECOND CLASS BRICKS:

SECOND CLASS BRICKS THESE ARE SUPPOSED TO HAVE THE SAME REQIREMENTS AS THE FIRST CLASS BRICKS 1. SMALL CRACKS AND DISTORTIONS ARE PERMITTED. 2. A LITTLE HIGHER WATER ABSORPTION OF ABOUT 16-20% OF ITS DRY WEIGHT IS ALLOWED 3. THE CRUSHING STRENGTH SHOULD NOT BE LESSTHAN 7.0 N/mm^2. USES : THESE ARE RECOMMENDED FOR ALL MASONRY WORKS

THIRD CLASS BRICKS:

THIRD CLASS BRICKS THESE ARE UNDERBURNT. THEY ARE SOFT AND LIGHT COLOURED PRRODUCING A DULL SOUND WATER ABSORPTION IS ABOUT 25% OF DRY WEIGHT USES : IT IS USED FOR BUILDING TEMPORARY STRUCTURES

FOURTH CLASS BRICKS:

FOURTH CLASS BRICKS THESE ARE OVERBURNT AND BADLY DISTORTED IN SHAPE AND SIZE AND BRITTLE IN NATURE. USES : THE BALLAST OF SUCH BRICKS IS USED FOR FOUNDATION AND ROAD METAL.

STRENGTH:

STRENGTH THE BUREAU OF INDIAN STANDARDS HAS CLASSIFIED THE BRIKS ON THE BASIS OF COMPRESSIVE STRENGTH CLASS ACS N/ MM^2 35 35.0 30 30.0 17.5 17.5 5 5.0 NOTE : THE BURNT CLAYBRICKS HAVING COMPRESSIVE STRENGTH MORETHAN 40N/MM^2

USES AND MANUFACTURE:

USES AND MANUFACTURE USES : COMMON BRICK: IT IS A GENERAL MULTIPURPOSE UNIT MANUFACTURED ECONOMICALLY WITHOUT SPECIAL REFERRENCE TO APPEARANCE FACING BRICK: THESE ARE MADE PRIMARLY WITH A VIEW TO HAVE GOOD APPEARENCEAND TEXTURE ENGINEERING BRICKS: THESE ARE STRONG IMPERMIABLE SMOOTH TABLEMOULED. MANUFACTURE : HANDMADE: THESE BRICKS ARE HAND MOULDED . MACHINEMADE: DEPENDING UPON MECHANICAL ARRANGEMENT , BRICKS ARE KNOWN AS WIRE CUT BRICKS

TYPES OF BRICKS :

TYPES OF BRICKS SOLID: SMALL HOLES NOT EXCEEDING 25% OF THE VOLUME OF THE BRICK ARE PERMITTED PERFORATED: SMALL HOLES MAY BE EXCEED 25% OF THE TOTAL VOLUME OF THHE BRICK HOLLOW :THE TOTAL OF HOLES WHICH NEED NOT BE SMALL, MAY EXCEED 25% OF THE VOLUME OF THE BRICK CELLULAR: HOLES CLOSED AT ONE END EXCEED 20% OF THE VALUE NOTE: SMALL HOLES ARE LESS THAN 20MM OR LESSTHAN500MM^2 IN CROSSSECTION : :

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CHARACTERISTICS OF BRICKS

SIZE AND SHAPE:

SIZE AND SHAPE THE BRICKS SHOULD HAVE UNIFORM SIZE AND PLANE ,RECTANGULAR SURFACES WITH PARALLEL SIDES AND SHARP STRAIGHT EDGES

COLOUR :

COLOUR THE BRICK SHOULD HAVE A UNIFORM DEEP RED OR CHERRY COLOUR AS INDICATIVE OF UNIFORMLY IN CHEMICAL COMPOSITION

TEXTURE AND COMPACTNESS:

TEXTURE AND COMPACTNESS THE SURFACES SOULD NOT BE TOO SMOOTH TO CAUSE SLIPPING OF MOTOR THE BRICK SHOULD HAVE PRECOMPACT AND UNIFORM TEXTURE

HARDNESS AND SOUNDNESS:

HARDNESS AND SOUNDNESS THE BRICK SHOULD BE SO HARD THAT WHEN SCRATCHED BY A FINGERNAIL NO IMPRESSION IS MADE

WATER ABSORPTION:

WATER ABSORPTION IT SHOULD NOT EXCEED 20% OF ITS DRYWEIGHT WHEN KEPT IMMERSED IN WATER FOR 24 HOURS

CRUSHING STRENGTH:

CRUSHING STRENGTH IT SHOULD NOT BE LESS THAN 10N/MM^2

BRICKEARTH:

BRICKEARTH IT SHOULD BE FREE FROM STONES , KANKARS,ORGANICMATTER ,SALTPETRE ETC

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THANK YOU THANK YOU

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