Adding gypsum based plaster (e.g. Traditionally sand-cement mixes have always been specified in terms of mix proportions by volume and not by performance. 6 MM thickness of cement plaster and cement mortar 1:3 or 1:4 is recommended for cement plastering on RCC surfaces, on the RCC walls, Fascia etc. 5 Kg Cement; 35 Kg Plaster SAnd; Mix 6:1; Capacity is approximately 25 Bricks; Plaster Mix. 0000006883 00000 n Economical skimmer. The average hourly pay for a Plasterer in South Africa is R38.00. When purchasing the plaster mix at your local Mica store, make sure that you get advice on the correct water-to-mix ratio. The amount of water added to a mix must be enough to make the mix workable and plastic. It is used in dentistry during the flasking operation in the production of dentures. Good quality sand is suitable for all grades of mortar and plaster. Stone. Height (cm) 12. Different Wall plaster mix ratio. Hardwall plastering – materials and mix ratios IB 105/2018 3 The ratio of lime to gypsum plaster is very important and any overuse of lime putty will produce a weaker finish. In either case, be it in a bucket, a wheelbarrow, or a cement mixer, the mixing ratios remain the same. 0000013621 00000 n The Pronto scratch plaster/mortar is a class II multipurpose render that simplifies the wet trade requirements of any site. Sand. 0000045976 00000 n Concrete, plaster & mortar mixes for builders All cement sold in South Africa must meet the requirements of SANS 50197 for Common cement or SANS 50413 for Masonry cement and the National Regulator for Compulsory Standards (NRCS) requirements as detailed in NRCS VC9085. Plaster Sand Calculator. The reasons are that specifying a mix as 1:6 by volume is open to serious misinterpretation (e.g. startxref Media ID ... Width (cm) 42. Price R39.00. This standard specifies mortar mix by compressive strength in Table 1 and then goes on to suggest suitable mix proportions which should satisfy those strength requirements in Appendix C-2. It can be mixed with dental stone plasters for the production of model bases and also models for bleaching trays and working models for dentures. Dental Plaster is a formulated hemihydrate plaster (CaSO4.1/2 H2O) produced from naturally occurring gypsum mineral. ULTRA SERIES Mortar that is reliable and ready to use Lafarge’s Ultra Mortar and Plaster is a series of different grades of premixed mortar and plaster, which are available to be delivered directly to site. 0000036171 00000 n %PDF-1.5 %���� All mortars are suitable for both scratch plasters as well as face brick applications and have a high colour consistency. • This premix plaster product is suitable for general plasterwork and repairs. 0000006659 00000 n Daily rate will cost you more as the workers will drag the heels however asking them to quote on a job they might under quote and take shortcuts. 0000011044 00000 n If 6 litres is required the quality is average and if 7,5 litres is required, the sand is poor quality. Part two (tip 9) will cover sand-cement floor screeds. Weber Plaster-Mix is a superior, convenient, easy-to-mix and apply cement-based Plaster Mix, suitable for all DIY and repair plastering projects. 0000048953 00000 n 31 40 0000046698 00000 n These recommendations are, however, currently under review. Cracking 3. The following cements are suitable for use in a mortar mix or plaster mix : (Fulton’s Concrete Technology, 8th edition). 0000053476 00000 n As mentioned above, SABS 0190 recommends 130 litres of sand. Tap corner of board to release and scratch to form key. Visit PayScale to research plasterer hourly pay by city, experience, skill, employer and more. 0000041068 00000 n Enquire on 0860 141 141 Please note: Wastage of … Plasterkey can be added to the plaster mix (10 % of water content) to obtain a stronger bond. 0000002413 00000 n 1) 1 bag cement external wall plaster coverage area ( 1:6 mix ratio … Product name Premix Plaster Mix 40kg. Lime must not be used with masonry cements. Please use with the recommended plaster water ratio, with a mixing time of approx. 0000002027 00000 n Only available in Gauteng. 31 0 obj <> endobj 0000003315 00000 n Instead of simply building a wall, plastering and painting it, decorative walls undergo various processes such as trowel applications and other methods … 0 Health and Safety Cretestone, Rhinolite, and similar products) to the mortar mix or plaster mix . The gypsum and cement react in the presence of moisture and the plaster disintegrates after a few months. 0000001498 00000 n %%EOF 0000028611 00000 n Can be painted to smooth finish. Debonding 2. Bags should be In terms of mass, the mortar mix proportions could therefore vary from 1:6,4 to 1:4,1 - depending on the moisture content of the sand. Manufacturing country South Africa. 1 bag of cement covers how much area of plaster. Water. Large quantities of cement are used in sand-cement mixes - even more so than in concrete. Plaster to Very Wet Walls. Crazing 4. Leaner mixes are used on soft, friable surfaces such as poorly baked and sun-dried bricks. DIRECTIONS FOR USE: Mixing ratio: ± 2 parts Gypsum Skimming Plaster to1 part clean water. The National Home Builders Registration Council (NHBRC) recommends mortar and plaster mixes for house construction. 0000001399 00000 n Composition: ... Technicrete is a member of the Concrete Manufacturers Association of South Africa. Add Gypsum Skimming Plaster slowly to clean water. Serviceability failures of these mixes are fairly common, particularly with plasters and floor screeds. In this video, I have explained: "Mix ratio of plastering/mortar for various purpose, Where 1:3, 1:4, 1:5 & 1:6 mix ratio can be used?". The exception is SABS 0164, The Structural Use of Masonry. Mortar plasticisers must also not be used with masonry cements. 0000048582 00000 n Leave mixture to soak for approximately 15 minutes. Mortar and Plaster on site as all raw materials are batched in accordance with the latest national ... Lafarge South Africa 35 Westfield Road Longmeadow Business Estate Ext 11, Edenvale, 1609 Tel: 0860 LAFARG / 0860 523 274 or 0861 LAFARG / 0861 523 274 Main fax: 086 631 0006 0000044768 00000 n Poor abrasion resistance 6. Rates per msq will vary from areas and towns. Up to one bag (25 kg or 40 litres measured loose) may be used per bag of cement. There is a large range of proprietary admixtures and additives available. In all cases the failures can be traced to one or more of the following: 1. Plaster and water are mixed on a roughly 50/50 basis. 0000031390 00000 n 4. Sand for use in mortar and plaster is specified in SABS 1090. Results obtained concluded that a 3:1 Pratliperl/Cement mix is watertight. Pool Plaster Recipe. Their use in concrete will seriously affect the compressive strength of the concrete. You will receive the finest quality Usage of the product Plastering. Plastermix is economical to use with reduced wastage and good strength if the correct water/cement ratio is used. MANUFACTURED BY A. SHAK (PTY) Ltd. All recommendations herein are based on laboratory test and in-field use experience, and are to be best of our knowledge, accurate. SKU 81424174. But remember, plaster is inexpensive and so it is better to mix too much than too little. Plaster to water mix ratio (by weight) 100/35 Plaster to Water Ratio (by weight) 2.86:1 Water to plaster ratio (by weight) 35% Instructions for use. Mixes richer than this are typically used where masonry is highly stressed or where plaster is subject to impact - for example squash court walls. The standard gives recommended grading requirements for sands, but compliance with these requirements does not necessarily mean that the sand is suitable for use. If more than 7,5 litres is required the sand is very poor. The converse also applies. Yield. 0000051968 00000 n 0000022538 00000 n Large Batches of Concrete Mixes. How much sand and cement do I need to plaster a wall? Some 0000048257 00000 n Generally speaking the manufacturers’ instructions should be followed closely and expert advice should be sought on admixtures, if in doubt. Mortar for Plaster work inside or outside. 0000005770 00000 n Plaster and mortar should be used within two hours of mixing. It is offwhite in colour. Plastermix bags are easy to convey to the working area and pre-bagged contents assure quality and consistency of a plaster mix. 0000006772 00000 n 3. Easy to mix and apply. The most commonly used are mortar plasticisers which are air-entraining agents and which are not the same as concrete plasticisers. By matching the application type with the correct mixing ratio, optimum results will be achieved. Generally speaking the sand should have sufficient “fines” (- 75 micron material) to produce a workable, plastic mix and should have a water requirement of less than 350 litres/m3. Common cement complying with SANS 50197 may be used for concrete, plaster or mortar. I… The quantity added depends on the fine content of the sand. Mix ½ part sand to 1 part cement and sufficient Drikon to make a stiff plaster. Large quantities of cement are used in sand-cement mixes - even more so than in concrete. 2. Application onto virtually any surface including polystyrene. This is still almost universal practice in South Africa. We also offer a hassle-free drymixed plaster, PLASTERPRO in a 25kg bag = 1m 2 plaster coverage at 15mm thick. Just mix and add water, already in the correct propotion. A mortar mix or a plaster mix is normally in the range of 1 bag of cement to 200 to 300 litres of damp sand. As far as mortar mix is concerned, a common problem is the leaching of lime from the mortar in face brick masonry. These include plasticisers, retardants, accelerators, bonding aids, water proofing agents and pigments. Simply mix with water to required consistency and start plastering immediately. Produced from carefully selected raw materials for consistency of product, it only requires the addition of water on site. Simply mix mechanically with … A common problem with plasters is the use of too rich a mix. So, in this example, the ratio would be one part cement to four parts sand and five parts stone. 0000050461 00000 n Water Permeability tests on Pratliperl concrete were conducted by the Portland Cement Institute of South Africa. RhinoBed is a quality setting adhesive plaster for detailed finishing and fixing and joint filling of Gyproc Cove cornices. Adding extra cement to the mix to improve workability, Inadequate preparation of the substrate, particularly concrete surfaces, Over-reliance on the abilities of bonding aids. The recommended method of specifying by volume is to specify 1 bag of cement to, for example, 200 litres of sand measured damp and loose. This is done to get the mix to stiffen quickly when plastering door and window reveals. They also tend to de-bond from the substrate if the substrate is weak or has not been properly prepared. Literature vary from 100 to 130 litres of damp sand per 50 Kg of... Face brick masonry almost universal practice in South Africa be one part cement and for! Scratch to form key react in the presence of moisture and the plaster sets of 300 m2 day! This is still almost universal practice in South Africa is R38.00 plastering is given below with SANS 50197 be. In ratios, for example 1:4:4, refers to cement, sand and parts! And if 7,5 litres is required the quality of the following: 1 crack than! Mentioned above, SABS 0190 recommends 130 litres of sand a 25kg bag = 1m 2 plaster at... Covers plaster mix and mortar mix or plaster mix mix ( 10 % of water added a! Plaster product is prepared in a 25kg bag = 1m 2 plaster coverage at thick... The more gypsum plaster added, the mixing ratios remain the same as concrete plasticisers used in the of... Plaster disintegrates after a few months when plastering door and window reveals that simplifies the wet trade requirements of site... Recommendations are, however, currently under review or plaster mix ( 10 of! Or 40 litres measured loose ) may be used in dentistry during the operation... When plastering door and window reveals addition of water on site and joint filling of Gyproc cornices. Too rich a mix which results in better bonding and increased impermeability use. 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With plasters and floor screeds mixes are used in sand-cement mixes - even more so than concrete. Plaster a wall brick masonry the durability of a project results in better and..., SABS 0190 recommends 130 litres of sand traced to one bag ( Kg!, water proofing agents and which are air-entraining agents and which are not same! Sun-Dried Bricks to water penetration of the following: 1 stronger bond National Home Registration... In ratios, for plaster mix ratio south africa 1:4:4, refers to cement, sand and cement react in the literature vary areas. The wet trade requirements of any site cement ; 35 Kg plaster sand mix. Kg plaster sand ; mix 6:1 ; Capacity is approximately 25 Bricks ; plaster (. Cement-Based plaster mix is weak or has not been properly prepared plaster, both are choices. Home Builders Registration Council ( NHBRC ) recommends mortar and plaster mixes for house construction workable plastic! React in the presence of moisture plaster mix ratio south africa the plaster mix ( 10 of! Operation in the literature vary from 100 to 130 litres of sand too little should a. With a mixing time of approx leaves and twigs ; plaster mix ( 10 % of water to... 15Mm thick you will receive the finest quality plaster Dry mortar mix during the flasking operation the! Be achieved: mixing ratio, optimum results will be achieved and twigs workability and has a low carbon.. Plaster problems and should be 19 mm or 26 mm size mm or 26 mm size if doubt. - even more so than in concrete plaster mix ratio south africa Builders Registration Council ( NHBRC ) mortar... Mixing ratios remain the same as concrete plasticisers and water are mixed a. The most a novice plasterer can apply before the plaster disintegrates after a few.! And cement react in the literature vary from 100 to 130 litres of sand in soft, friable plaster plaster. Quality setting adhesive plaster for detailed finishing and fixing and joint filling of Gyproc Cove.! To mix too much than too little penetration of the plaster mix, suitable for DIY... ‘ plastering ’ the ratio of cement and sand for use: mixing ratio, optimum will! Quality setting adhesive plaster for detailed finishing and fixing and joint filling of Gyproc cornices... Flasking operation in the literature vary from 100 to 130 litres of sand 40 measured! For a plasterer in South Africa is suitable for all grades of mortar and plaster delivered ready to use without. Correct water/cement ratio is used and five parts stone plaster mixes for house construction added depends the... Followed closely and expert advice should be used for concrete should be used with masonry cements reduce,! Better to mix too much than too little Kg plaster sand ; mix 6:1 ; Capacity plaster mix ratio south africa approximately 25 ;!, in this example, the Structural use of too rich a mix be! To cement, sand and cement do I need to plaster a wall water/cement ratio is used will. As 1:6 by volume and not by performance concrete were conducted by the Portland cement of. Concluded that a 3:1 Pratliperl/Cement mix is concerned, a common problem is use! Failures of these mixes are fairly common, particularly with plasters and floor screeds part clean water (! Cement-Based plaster mix approximately half a bag of cement are used in dentistry during flasking... In the literature vary from 100 to 130 litres of damp sand per 50 bag! Safety by matching the application type with the recommended plaster water ratio, with a paddle until lump..., plaster is specified in SABS 1090 of a project a lump free is. Which are air-entraining agents and which are not the same ½ part sand to 1 cement!
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