TOPIC:- GYPSUM PRODUCTS

PURVANCHAL INSTITUTE OF ARCHITECTURE &

DESIGN, GKP.

PRESENTED TO:-AR. MIRZA ASIM BEGAR. DILIP UPADHYAY

PRESENTED BY:-GROUP MEMBERS1.AKASH KUMAR SINGH2.ANUPAM JAISWAR3.RAHUL KUMAR

BUILDING CONSTRUCTION & MATERIALS

CONTENTS• Introduction• Gypsum Board• Suspended Ceiling (Board & Tiles)• Gypsum Plaster• Components & Accessories• Jointing & Finishing

GYPSUM• Introduction :• Gypsum is a mineral found in sedimentary rock formations. • This product is perfectly highly fire resistant.• Gypsum contains chemically combined water that is driven off as steam when subjected to high

heat, effectively fighting fire.• Gypsum board is the most common interior finish used today.

Drywall (also known as plasterboard, wallboard, gypsum board) is a panel made of gypsum plaster pressed between two thick sheets of paper.

It is used to make interior walls and ceilings Gypsum Boards are manufactured by many different

companies like USG, Saint Gobain, India Gypsum Pvt. Ltd.,etc.

Gypsum boards are produced in many sizes and thicknesses: 1200x1800mm (4'x6‘), 1200x2400mm (4'x8‘),

Thicknesses of: 6.25mm(1/4“), 9.34mm(3/8“), 12.5mm (1/2“), 18.75mm (3/4“)

A special product called 'shaftwall' is 25mm (1“) thick, and designed to be used to line elevator shafts.

Gypsum Board is the premier building material for wall, ceiling, and partition systems in residential, institutional and commercial structures and is designed to provide a monolithic surface when joints and fastener heads are covered with a joint treatment system.

Lightweight, flexible and fire and moisture resistant

GYPSUM BOARD

Gypsum is most commonly used for false ceiling. Gypsum board panels are tough, versatile and economical, and are fast replacing other ceiling materials

such as pop. Gypsum board can be used while constructing false ceiling. As well as to renovate old ceilings. The material is fire-resistant,soundproof, which is why it is the most preferred material for false ceiling. A gypsum panel could have tapered or square edges. Panels with tapered edge are used for ceiling. Square edges board can be used Where visibility of the joints is a requirement.

GYPSUM BOARD

Easy Installation Fire Resistance Sound Isolation Durability Economy Aesthetics & Design

ADVANTAGES OF GYPSUM BOARD

Cannot be wet Fungi Health because of Powder Easy to damage

DISADVANTAGES OF GYPSUM BOARD

A false ceiling is nothing but a layer of insulation.

It is the suspended ceiling between the main ceiling and room.

It gives beautiful appearance to your interior home.

FALSE CEILING

Improves the overall look of the home.

Insulation reduces heat from the roof.

Offers acoustical improvement.

It is a design element.

Sound proof.

PURPOSE OF FALSE CEILING

Exposed grid

Most common type

Consists of long strips interconnected

Concealed grid

Clean, smooth as well as expensive

Uses acoustical tiles to hide grid system from view.

Gypsum Ceiling

Plaster of Paris Ceiling

Wooden Ceiling

TYPES OF FALSE CEILING

Durable, portable

Light weight

Fire resistant

Sound proof

Easy installation

BENEFITS OF FALSE CEILING

SUSPENDED CEILING

GYPSUM PLASTER (PLASTER OF PARIS) Gypsum building plasters are used extensively abroad for general building operations and the

manufacture of pre-formed gypsum building products like tiles, blocks, plaster board etc, which have the specific advantage of lightness and high fire resistance. 

Now as there is boom in the real estate in India, the builders and contractors wants time saving in construction, therefore they choose gypsum plaster due to its superior finish and time saving aspect.

Now a days, the construction sector has observe a number of new tendency, technology advancements and improvement across application, all meant at making construction faster and delivering higher performance.

Gypsum surface plaster is one type that has drawn the attention on the construction sector and is getting higher popularity these days.

Gypsum is a chalk like material light in weight. It is crystalline combination of calcium sulphate and water. It is available as natural gypsum, which is mined all over the world, and as synthetic by product of major

industries such as fossil-fuelled power stations. Gypsum products such as molding, design piece around fan and corner design pieces and many more

have been used for past time in the construction field and are the material of choice because of gypsum’s unique properties.

It has very good insulation properties both thermal and acoustic. It has properties like fire protection, moisture resistance, impact resistance and vapor control.

In general case after the construction of wall either with bricks or with blocks, the wall internal surface is finished with cement sand plaster and white washed or painted as the case may be but this surface remain rough.

For getting smooth surface Plaster of Paris i.e. POP is applied on the plaster surface before painting or distempering the wall.

In this way two stage process involves which takes lot of time and labor, this form of internal finishing being slowly replaced by a direct single coat application of gypsum plaster. Therefore gypsum plaster is in fact a replacement of two different processes i.e. cement sand plastering & POP pruning.

GYPSUM PLASTER (PLASTER OF PARIS)

ADVANTAGES OF GYPSUM PLASTER There are some advantages of gypsum plaster over the cement sand

plaster & POP finish as detailed below. Gypsum plaster light in weight, therefore reduces the load on structure. More cleanliness on site

because it is bag packed product and no curing is required. Gypsum plaster is directly applied on brick, block or RCC, no separate finishing product required. It requires no curing, therefore ready to paint. Gypsum plaster saves time during construction and ensures timely possession of homes/ building. Gypsum plaster expands slightly on setting and is not, therefore likely to cause cracking of surface. On drying out it forms a sufficient dense surface to resist normal knocks. Gypsum plaster is comparatively easy to spread and level. Gypsum plasters have no appreciable chemical action on paint. Gypsum plaster is perfectly lined, leveled, sharp corner and smooth surface. Saving on electricity used for air conditioning as gypsum has very low thermal conductivity. It is more durable and green material.

DISADVANTAGES OF GYPSUM PLASTER

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Gypsum plaster is not suitable for exterior finish, as it can not be used in damp situations. Gypsum plaster is more expensive than cement sand plaster but cost disadvantages should be weighed

against the advantages and the fact that the labor cost is appreciably greater than that of materials in plastering.

Cement plaster add structurally strength to the wall but not in case of Gypsum plaster.