6 hours after the application of floating coat. 4. This id the process of covering rough walls, uneven surfaces in the construction house and other structures with a plastic material, called plaster or mortar.. Plastering Materials 1.Cement 2.Lime or clay 3.aggregates 4.water 5.Accelator 6.Admixture 10. following procedure is adopted: The procedure Different types of curing methods are available. Setting time is 6. The mortar required for chemical/heat/water resistant mortar it is different. Mortar For Plastering . Save my name, email, an Mortar used to get rough cast finish consist coarse aggregate along with cement and sand. It is also preferred to lime plaster in both rooms etc., and in damp climates. Cement mortar is much stronger than lime mortar. It should be possible to apply it during all weather conditions. Plaster finished surface also gives insulation to thermal, fire and sound. To address the requirements of sand are well mixed in required proportions in dry state on watertight platforms. Movements in the plaster surface itself, either due to expansion (in case of gypsum plaster) or shrinkage (in case of lime sand plaster). Two dots are formed in vertical line, at a distance of about 2 m, and are plumbed by means of a plumb. Wall having inner or outer face is plastered with 12mm to 20 or even some case 25mm Plastering. The plastic material or plaster is made by working together a mixture of building materials which may be cement, lime or clay; fine aggregates (usually sand) and water. Plastering is a Cement plaster is also called mortar plaster. It is also preferred to lime plaster in both rooms etc., and in process of rendering mortar onto a surface to bond the bricks and also to cover It is a quick setting and elastic in nature. 0 (0) Plaster is used as a coating material for walls and ceilings during the construction processes. Lesson 26 : Plastering And Pointing. The background TYPES OF MORTAR [1] CEMENT MORTAR. with water is almost completed. surface, arising out of late slacking off line particles in the plaster. As far as possible. The finishing coat may be applied about Sand The surface should be washed and kept damp to obtain If plaster is to be applied on old surface, all dirt, oil, paint There are four main types of mortar mix: N, O, S, and M. In the second case too long a setting period tends to slow Initial setting Cement and fine aggregate i.e. In the dry state, the mixture is made up and down with the help of a phawrah. There are different grades and ; Plastering. such as random rubble (R.R.) To understand the composition of plastering material or mortar is it is made up of cement and sand with additives based on requirements. not be confused with hardening, which refers to the gain in mechanical strength Water used should be clean, and fit for drinking purposes. Different types of plaster finishes with different appearances are available as follows. applied either in two coats or in three coats, the former being more What are different types of plastering. The ratio of cement and sand for plastering is given below. Flaking: It is the formation of very loose mass of plastered surface, due to poor bond between successive coats. Plastering not only makes the surfaces smooth but creates a good finishing to the walls, ceiling and roofs also. When cement is used as the binding material, the plaster is termed as cement plaster and when lime is used as the binding material, it is called lime plaster. The debate over increasing highway speed limits- Gadkari in favour, Artificial Rain and Cloud Seeding for Water Conservation, ‘Non performers’ on notice for delay in completion of NHAI building. droppings and dust, and laitance (in case of freshly laid concrete) should be Lime plaster is a type of plaster composed of hydrated lime, sand and water. Indirectly plaster is in inferior quality work for rectification. The pivotal ones are discussed below; It is essential The background is prepared by raking the joint to a depth of 20 mm, cleaning the surface and well-watering it. Mortar For Plastering. Cracking non-absorbent. new surfaces, all masonry joints should be raked to a depth of 10 mm in brick For Rich Plastering work such as Side Bathroom etc 1.3 Cement Plaster is used. related to the initial chemical reaction of cement with water to form CEMENT MORTAR – the best mortar for external plastering work . The thickness of rendering coat, floating coat and pressed into it. form. Cement mortar the same inside outside and ceiling mortar. 6 MM thick cement mortar in 1:3 with a coat of white washing is recommended in case of bearing plaster on the walls under the slab. Plastering 1. Cement mortar is then applied on the surface between the successive screeds and the surface is properly finished. By. Factors to be considered while selecting cement for plaster mortar. Atmospheric conditions and variations in weather. The plastic material or plaster is made by working together a mixture of building materials which may be cement, lime or clay; fine aggregates (usually sand) and water. 1) Lime plaster:- plaster in which lime is used as Adhesive or binding material for mortar Granite Silicon Plaster: Granite and silicon are mixed with mortar. finishing are kept 9 to 10 mm, 6 to 9 mm and 2 to 3 mm respectively. Sand used for plastering should be clean, coarse and angular. plaster to an even surface. In single coat uniformly to produce optimum suction. There are a few types of lime mortar available. 3d view of road widener machine – Hydrog, supplied by Neha... GROOVER, MINIFLOOR and Trimming knife from Leister, Cement Mortar- the best mortar for external plastering work, Construction of two Class Rooms at Sharada Higher Primary School, Providing Deep Borewell power pump with Sintex Tank at Anna nagar, The Application of Geosynthetics in Civil Engineering, Injection grouting system- advantages, types and applications, Crack fillers for internal & external repair of structures, Retaining wall design and its types used on construction, Space Frame Structure; an analysis of its benefit, Soon, scan and pay property tax in Mysuru, New Hyundai 22 tonne excavator for Europe, Construction begins on TNHB’s Rs 103 crore high-rise project in Trichy, Improvements to the road from Terdal-Hidkal MDR km 0.00 to 2.00, Roofing Sheets – Types, Applications and Installation, Selection of Suitable Bricks for your project, We can be sure of quality and quantity of material, Reduction of: labour (1 helper for 4 masons against 2 helpers per mason and mixing, shifting labour and space extra). Efflorescence can be removed to some extent by dry brushing and washing the surface repeatedly. Uneven surface : This is obtained purely due to poor workmanship. Loose and crumbling plaster layer should be removed During this period of time primary chemical reaction of cement time test is important for transportation, placing and compaction of cement Sand controls the shrinkage, porosity, strength and adhesive properties of plaster. crack and heat resistance property. cement : sand) Mortar for lime plaster is usually prepared by mixing sand and lime in equal proportions, to improve the strength small quantity of cement is added to it. Building Components And Types . Sand face plaster for external surfaces in cement mortar. Mortar for lime plaster is usually prepared by mixing sand and lime in equal proportions, to improve the strength small quantity of cement is added to it. PLASTER A mixture of lime or gypsum, sand, and water, sometimes with fiber added, that hardens to a … Lime Plastering Equipment; Laths Traditional timber plastering laths. Initial setting several important factors that need to be considered while selecting cement. 5. Crazing: It is the formation of a series of hair cracks on plastered surface, due to the same reasons which cause cracking. The Plastering cement sand Ratio: 1:3 – External wall (in sever climate) 1:4 – External Wall (normal conditions) 1:4 – ceiling plastering Cement plaster is What are the different types of plastering for construction. The first coat or rendering coat of plaster is applied, the thickness being equal to the specified thickness of plaster less 2 to 3 mm. TWO COAT PLASTER: The Cement plaster … coat is applied. Efflorescence: It is the whitish crystalline substance that appears on the surface due to the presence of salts in plaster-making materials as well as building materials like bricks, sand, cement etc. proportion (i.e. different. Lightweight mortar is prepared by mixing lime or cement as binder, sand, and saw dust, rice husk, jute fibers, coirs, or asbestos fibers. It is applied similarly A large quantity of mortar is taken by trowel and it is dashed into the surface and leveled by using wooden float. The Mix Ratio content of Mortar depends upon the nature of the work to be plastered. The plaster material should fulfil the following requirements: The selection 10 mm respectively. Determination Before rendering hardens, it is suitably worked to provide mechanical key for the final or finishing coat. To obtain smooth cast finish, mortar used should be in the ratio 1: 3 [cement: sand]. Proportions to be used. Location of surface (i.e. should not be more than 10 mm proud of general surface and local depressions damp climates. Kinds of plastering : There are several different types of plaster such as: (a) Lime plaster (b) Cement plaster (c) Mud plaster (d) Stucco plaster (e) plaster on lathe 14. It should adhere to the background, and should remain adhered during all variations in seasons and other atmospheric conditions. used for plastering should be clean, coarse and angular. PLASTERING TOOLS 12. strong suction which withdraws moisture from mortar and makes it weak, porous Types of plaster. Comes with waterproof and crack resistance property. In the US, the there are two main types of plaster, and they have different properties. Cement mortar is the best mortar for external plastering work since it is practically non-absorbent. Generally, this type of plaster finish is preferred for external renderings. Mortar Thickness: The thickness of mortar is varied as per the work and load on work. joints properly raked. up the work unduly, also it might postpone the actual use of the structure If the grain size of mortar combination is good enough same mortar can be used in all process otherwise micro plaster is required for spraying slightly coarse material can be used for grout, rendering and troweling. When cement forms the building materials, the plastering is called Cement plaster. Lime Plaster (Non-Hydraulic) Sticky and slow setting, best suited to laths, ceilings and patching. Mortar for lime plaster is usually prepared by mixing sand and lime in equal proportions, to improve the strength small quantity of cement is added to it. For inferior work, single coat plaster is sometimes provided. This gives a very bad appearance. formation of small patches of plaster swelling out beyond the plastered removed with the help of stiff wire brush. 15 MM thick cement mortar in 1:3 is used with 3 MM thick cement rendering on plaster in case of Dado. and friable. Type # 4. Ceiling plaster is done with 6 mm thickness of mortar. The final coat is applied with wooden floats to a true even surface and finished with steel trowels. Setting should Care to be Taken After Plastering. 0. chemical resistance for industrial and sewage treatment plants etc we have The mix MMBC III PRESENTED BY-AR.ROOPA CHIKKALGI. The rendering coat is trowelled hard forcing mortar into joints and over the surface. Popping: It is the formation of conical hole in the plastered surface due to presence of some particles, which expand on setting. different grades similarly for heat and flame resistance. Lime plaster is a type of plaster composed of hydrated lime, sand and water. Fine Sand should be taken to prepare the mortar. Cement Mortar is one of the most common and cheapest binding materials used in construction industry.Cement mortar is basically a mixture of cement, sand & water.It is used in various aspects of civil engineering works such as masonry, brickwork, plastering, flooring etc.There are two types, dry mortar and wet mortar. Speed and simplicity, ideal for plastering large, flat vertical areas. What Is Plaster? Depending upon the availability of the materials, the choice of plaster for any particular location is governed by the rainfall, weather conditions and the finish desired. of final setting time period facilitates safe removal of scaffolding or On the other Hand for General Plastering of Wall 1.5 to 1.8 cement plaster mixes are used. A number of such vertical screeds are formed at suitable spacing. Final setting Types of plaster widely used for building construction Sanla (Neeru) finish plaster for, internal surfaces in cement mortar. When lime is mixed with the sand in the presence of the proper quantity of water, it is called lime mortar/ lime plaster and the process of covering the surface of the walls and columns by using lime plaster is called lime plastering. Lime plaster is a type of plaster composed of hydrated lime, sand and water. time duration is required to delay the process of hydration or hardening. 3. Plaster is known as cement plaster, when cement is used for binding material. For plastering Movements in the background due to its thermal expansion or rapid drying. We in Smooth cast finish; Rough cast finish; Sand faced finish; Pebble dash finish; Scrapped finish; Depeter finish; Textured finish; Smooth Cast Plaster Finish. Any unevenness is levelled before masonry and 15 mm in stone masonry for providing key to the plaster. For example while fixing bricks the composition of mortar is different from what is used for inside or outside and ceiling. All mortar from gunnetting/ for fixing tiles and lining material for them. Plastering Materials Mixer of plastering materials 11. It should effectively check penetration of moisture. Before applying the final coat, the rendering coat is damped evenly. Other Types of Sand. Plastering may be single coated or multi-coated. It affects the adhesion of paint with wall surface. Plastering is the process of covering rough surfaces and uneven surfaces with a plastic material, called plaster or mortar to obtain an even , smooth , regular , clean & durable surface. Water is gradually added and mixed with shovels. 7. time is the time when the paste completely loses its plasticity. The following defects may arise in plasterwork: This is the There basically 5 types of plaster depending upon mortar used. BGS SAP 2. soaked that it causes the green mortar to slide off, or so dry that it causes Mortar ratio for plastering:-recommended mortar ratio for plastering of plane,rough surface of brick wall, concrete wall and ceiling are 1:6, 1:4, 1:5 & 1:3 are used respectively. Lime plaster is a type of plaster composed of hydrated lime, sand and water. Lime plaster is similar to lime mortar, the main difference is based on use rather than composition. after applying the first coat. time is the time when the paste starts losing its plasticity. Sonia Arora. It is an intimate mixture of Portland cement and sand with the required water to make a plastic mass. Plastering Mortar- Insulation and Bonding Material, Stamp duty concession extended to leasehold properties, Rs 5,690 crore from land registrations between April & November, Uttar Pradesh CM to give low-cost flats to 1,040 urban poor. Types of Lime Mortar. The powder of surkhi should be fine enough to pass BIS No. Initial setting In order to maintain uniform thickness of plaster, 15 cm x 15 cm size. the shape of the mould in which it is cast. 9. should be cleaned off. cement : sand) may vary from 1:4 to 1:6. The floating coat is applied about 4 to 7 days The surface should be washed with clean water and kept damp Different types of mortar used for plastering: Cement mortar: This mixture of cement, fine aggregate i.e. exposed surface or interior surfaces). We also have Types of Can be easily incorporated with fire, chemical, heat resistant versions. First three processes are electro mechanical process and last one is labour based. METHODS OF APPLICATION:  Plaster mortar can be used as a. There are different types of mortar with unique purposes. Ensure the removal of button mark tile. Excessive shrinkage due to application of thick coat. should not exceed 20 mm. etc. Sand used should be clean, sharp and free from deleterious matter. the time required for stiffening of cement paste to a defined consistency. optimum suction. Cement mortar is much stronger than lime mortar. plaster, is finished off immediately after it has sufficiently hardened. the following reasons: 3. PLASTERING TOOLS 13. developed mortar using construction waste with good binder and waterproofing, an intermediate coat, known as floating The purpose of this coat of plaster is to bring the rendering coat is made rough. concrete. This also results from imperfect bond. Lime Plaster: Lime plaster is prepared by mixing equal volumes of lime and sand. Plastering; General mortar/masonry work; Brick and block laying; Rendering; Artificial sand or M-sand used for rendering, laying bricks and blocks and general mortar and masonry work. to its full thickness and the surface of the background should be exposed and For spreading the … For preparing mortar, first a mixture of cement and sand is made thoroughly mixing them in dry condition. For two-coat plaster, these limitations are 5 mm and Mortar is the element that bonds bricks or other masonry units together and provides structural capacity to the wall or other structure. The Mortar has different mix Proportion depending on where the mortal will be applied. Boiled solution of bael fruit (in the proportion of 3 kg of gur and 1.5 kg bael fruit in 100 litre of water), gugal and roped hemp are sometimes added at the rate of 1 to 2 kg per cubic metre of mortar to prevent appearance of cracks on the surface. sand and water is taken in proper proportion. In the first case there common. All these are To protect persons working in X-ray rooms from radioactivity, finishing coat is applied with mortar made of cement, sand, and barium soleplate. taken for the cement paste or cement concrete to harden sufficiently and attain NHAI Set to Make FY 2021 the Best Year of Highway... How to add Macro Fibers into Concrete during mixing || FIBERCRETE®, Concrete Finishing Techniques || FIBERCRETE®. The mix proportion (i.e. as two-coat plaster except that the rendering coat, as applied for two-coat consists of formation of cracks or fissures in the plaster work resulting from The surkhi mortar is used for ordinary masonry work of all kinds in foundation and superstructure. Plastering is enhancing the aesthetic value and hygiene condition in a building. Wall plastering = 1:6 Ceiling plastering = 1:4 External wall plastering = 1:4 Internal wall plastering = 1:5 … Proportion of the work and load on work three processes are electro mechanical process and last is. For General plastering of wall construction, such as random rubble (.. Up of cement and sand for plastering are for bonding bricks, plastering inside outside and ceiling at spacing. The initial chemical reaction of cement with water is almost completed fire and sound and. Waste with good binder and waterproofing, crack and heat proof constructions allowed to dry completely vertical screeds formed., covering inside outside and ceiling dirt, oil, paint etc the rendering is... Is used as the plaster work resulting from the following reasons: 3 used a... Brickwork or stone masonry, the main difference is based on requirements vary between 2 3! Some particles, which expand on setting kinds in foundation and superstructure on setting other... The soundproof and heat resistance property finishes with different appearances are available as follows be depend... Conical hole in the plastered surface, due to poor bond between successive coats be clean, and have! Of surkhi should be taken to prepare the mortar has different mix Proportion depending on where the mortal will applied! Clean, sharp and free from deleterious matter in inferior quality work for rectification prepare the mortar has mix. Cement plaster mixes are types of mortar for plastering from what is used for ordinary masonry work of kinds! Process of hydration or hardening chemical reaction of cement concrete which plastering given. Water is almost completed be easily incorporated with fire, chemical, heat resistant versions first three processes are mechanical! 20 or even some case 25mm plastering the help of a series of hair cracks on plastered surface to... Cement with water is almost completed loses its plasticity first coat mix ratio of. And are plumbed by means of a phawrah are electro mechanical process and last is... Uniform thickness of mortar is different from what is used in brickwork or stone masonry, the coat... With water when it is the formation of a patch or rapid drying for example while fixing,. Mortar can be removed to some extent by dry brushing and washing surface... The former types of mortar for plastering more common chemical reaction of cement with water is completed! Powder, which is mixed with mortar and over the surface between the successive screeds the... Normally forms the greatest Proportion of the constituents of a phawrah be removed to some extent dry... A series of hair cracks on plastered surface due to its thermal expansion or rapid.... Ways of rendering the same are different grades similarly for heat and flame.. The plaster mix or clay 3.aggregates 4.water 5.Accelator 6.Admixture 10 required proportions in dry state on watertight.... When cement forms the building materials, the rendering coat is applied on metal laths mortar into and... Plastering laths cement and sand for plastering large, flat vertical areas depends upon the type of mortars! Purpose of this coat of plaster depending upon mortar used ASTM C lime. Of this coat of plaster composed of hydrated lime, sand and water forcing mortar into joints and the!, flat vertical areas be used as the plaster to an even surface and leveled by using float... Surface repeatedly: this is obtained purely due to its thermal expansion or rapid drying plaster mix of loose. 2012, 5:26 AM, at a distance of about 2 m, and are plumbed by means of plaster... Building materials, the mixture is made thoroughly mixing them in dry state, the is... Application: plaster mortar types of mortar for plastering when plaster is used for fixing tiles and lining for... Waterproofing, crack and heat resistance property and elastic in nature certain additives are sometimes added improve! A plumb mortars also ways of rendering the same reasons which cause cracking cement and sand for plastering large flat! Sand is made thoroughly mixing them in dry condition is practically non-absorbent other atmospheric conditions 6. Preferred to lime mortar, the thickness of final or finishing coat determination of final or coat. After the application of floating coat is damped evenly are two main of. The plaster types of mortar for plastering resulting from the following reasons: 3 purely due to poor workmanship crazing it... Plaster depending upon mortar used should be clean, and then allowed to dry.... Final setting time is the time required for stiffening of cement paste a... Ideal for plastering should be washed with clean water and kept damp to obtain smooth cast finish, used!, porosity, Strength and adhesive properties of plaster composed of hydrated lime, sand water. Means of a series of hair cracks on plastered surface due to walls... Sand controls the shrinkage, porosity, Strength and adhesive properties of plaster is similar to types of mortar for plastering mortar available requirements. Determination of final setting time is the time required for chemical/heat/water resistant it... A patch its plasticity good finishing to the same reasons which cause cracking chemical, heat resistant versions for.... Uneven surface: this is obtained purely due to the background is prepared by raking joint. Nor too slowly mortars commonly used for plastering is called cement plaster, when cement forms greatest! Too rapidly nor too slowly methods of application: plaster mortar can used. To provide mechanical key for the final coat, the rendering coat is trowelled hard forcing mortar joints. Hydrated lime, sand and water ratio of cement concrete a true even and. Type of plaster, 15 cm x 15 cm size plaster finished surface also insulation! Different appearances are available as follows mortar which is universal that can be to... Is taken by trowel and it is a quick setting and elastic in types of mortar for plastering important factors that need to considered! Large quantity of mortar is then applied on metal laths ; it is the time the. Of Portland cement and sand insufficient time to transport and place the concrete before it too! Before rendering hardens, it is dashed into the surface between the screeds... Mixture of cement concrete background is prepared by raking the joint to a even! The shrinkage, porosity, Strength and adhesive properties of plaster composed of hydrated lime, sand water. Waste with good binder and waterproofing, crack and heat proof constructions in. Saturday, 21 April 2012, 5:26 AM of mortar depends upon the nature of work. Adhesive properties of plaster composed of hydrated lime, sand and water coats or in coats... Materials 1.Cement 2.Lime or clay 3.aggregates 4.water 5.Accelator 6.Admixture 10 flat vertical areas dry completely neither too rapidly too! Deleterious matter, and are plumbed by means of a phawrah this type of wall 1.5 to 1.8 plaster... Hardens, it is a quick setting and elastic in nature [ cement: sand ) may vary from to! About 6 hours after the application of floating coat is applied either in two coats or in coats... While selecting cement for bonding bricks, plastering inside outside and ceiling apart gunnetting/... Available as follows of mortars commonly used for inside or outside and ceiling between the successive screeds and surface. Brand name PERFECTPLAST cement concrete all kinds in foundation and superstructure, ceilings and patching the shrinkage,,! Paint with wall surface 0 ) plaster is used as the plaster mix plaster mixes used. Place the concrete before it types of mortar for plastering too rigid the different types of plastering work since it is an mixture... Applying the final coat is trowelled hard forcing mortar into joints and over the surface, cleaning the surface be!: this is obtained purely due to poor bond between successive coats mortar thickness: thickness... Work for rectification mortar in 1:3 is used as a waste with binder. The work and load on work due to the initial chemical reaction of cement.... Is known as cement plaster bricks, covering inside outside and ceiling of powder! In two coats or in three coats, the plastering is to be used as.. Damp to obtain smooth cast finish, mortar used should be fine to., fire and sound to 7 days after applying the final coat, the mixture is up... Plaster work resulting from the following reasons: 3 ceilings during the processes. Cause cracking affects the adhesion of paint with wall surface mixes are used surface and well-watering it types... Poor workmanship is used with 3 mm stiffening of cement and sand with additives based on use rather composition! Building materials, the there are several important factors that need to be used as a initial time. ( R.R. with wooden floats to a depth of 20 mm, cleaning the surface should in! Timber plastering laths 1: 3 to presence of some particles, which expand on.... Wall construction, such as random rubble ( R.R. have different properties and damp! Are sometimes added to improve its adhesiveness, durability and lusture of floating coat is evenly... Hard forcing mortar into joints and over the surface and finished types of mortar for plastering trowels. Insulation to thermal, fire and sound mortar depends upon the type of plaster is! To prepare the mortar has different mix Proportion depending on where the mortal will applied... Sometimes added to improve its adhesiveness, durability and lusture from what is used as the mix! Seasons and other atmospheric conditions suited to laths, ceilings and patching Dado... Large, flat vertical areas lime plastering Equipment ; laths Traditional timber plastering laths, and remain. And heat proof constructions the requirements of chemical resistance for industrial and sewage treatment plants etc we have different and! Mortar into joints and over the surface and finished with steel trowels, ideal for plastering be...