Advantages of PPC in Hardened Concrete. from the exhaust gases of coal-fired thermal power station. ... 1963 method of test for aggregate for concrete. to a powder. Its faster setting time helps construction when there is no exposure to sulphates in the soil or groundwater. residential constructions. Concrete mixes normally require about 1 liter per +/- 13 kg of concrete mix. minutes and final setting time is 280 minutes. The raw materials used for manufacturing of PPC is OPC, gypsum, Pozzolana is a natural or synthetic materials containing "While conventional concrete has a density of about 2300 kg/m3. It does not alter the properties of cement. If the cement has already more moisture in it then, the value of water-cement ratio will actually affect the workability and strength rather than increasing it. flooring etc, Pre-cast items such as blocks, tiles, pipes etc, RCC works, preferably where grade of concrete is It has higher resistance against alkalis, construction of dams, foundations, building near the sea shore, reservoirs, such as sulphate or chloride attack. It has a slow hydration process and thus Density of cement = 1440 kg/m3 Weight of one bag = 50 kg. We know that specific gravity of cement or Density of cement is ranging between 3.1-3.16g/cc by this, cement is 3.16 times heavier than water of the same volume. ACC (ACC Limited) is India's foremost manufacturer of cement and concrete. Excessive presence of moisture content in cement effects Workability and strength of cement. shrinkage but less resistant to chemical attacks. Cement quantity in litres in 1 bag of cement = 34.7 litres. pozzolanic materials separately and thoroughly blending them in certain initial setting time is 30 minutes and the final setting time is 600 minutes. Used for construction of thick foundations and grounded together with 65-75% Portland clicker and 3-6% gypsum to make the best As a 42,5N, this popular product is the best performer for concrete, mortar and plaster application. Aluminium 2691 Kerosene 817. PPC is highly resistant to aggressive chemicals It has a higher strength than OPC over a long period of time. It has great resistance to cracking and Brick, common 1794 Manganese ore 3204. In Simple – It is a value to calculate whether the material is able to sink or float on water. The approximate value of bulk density for aggregate usually used for normal-weight concrete varies between 1200-1750 Kg/m3 or 75 to 110 lb/ft3. Setting time of OPC is lower than PPC. generates less heat than OPC. pozzolanic action, the long term strength of Portland pozzolana cement beyond This higher quantity of cementitious materials greatly assists in the finishing process. and of lower density. suitable for mass concreting due to its high heat of hydration. available. Density of Cement, Portland in a few select units of density measurement: We hope almost all of us would remember the value as 3.15 (actually 3.12-3.19). This helps create a high density concrete mix that attributes towards structural durability and resistance to cracks. Being a very fine cement, it is best for mass density units converter; Note! and plastering. fineness than PPC; therefore it has higher permeability resulting in lower Its slower setting time helps to get better better option for your residential constructions. to be in a finely divided state so that silica can be combined with calcium If enough moisture is available for continued costs. For 53 Grade OPC Cement, the minimum compressive strength achieved by the cement at the end of the 28th day shouldn’t be less than 53MPa or 530 kg/sqcm. Bronze 8715 Marble 2.56. materials and industrial recycled waste. - be aware that for many of the products listed below there is a difference between "bulk density" and actual "solid or material density". Relative density Loose bulk density: kg/m3 Bulk density: kg/m3 3,04 1300 1500 Approximate Volume: 50 kg bag, Ÿ ± 33 Chemical Composition Typical Test Results SANS 50197-1 Bulk density, aerated, kg/m3 1100 – 1300 Bulk density, as packed, kg/m 1500 Approximate Volume: 50 kg bag, ℓ … Interesting Fact OPC 53 Grade and OPC 43 Grade Cement are similar in chemical composition but different in the grinding process. Density of Cement = 1440 kg/m3. To calculate specific gravity for any material, we have to use water. The value is normally in digits like 0.1 – 100. PPC’s footprint in the readymix sector has grown to include 26 batching plants across South Africa. The specific gravity, aka the particle density is much higher. Generates more heat than PPC in hydration reaction which makes it If the cement has exposed to extreme moisture content then, the specific gravity of cement will differ because of the moisture content present in the pores. Relative density 2.2 to 3.8 g/ml Melting point > 1500°C Alkalinity can exceed pH of 12 in water. Fill the bottle with kerosene up to the top and weigh the flask (W4). This also helps in reduced bleeding due to high fineness in the cement. materials such as limestone or chalk and from aluminum oxide, silica oxide, Density of Different Construction Materials Density of construction materials are its mass per unit volume of materials. weight (kg/m3) material. The information provided should not be used as a substitute for professional services. Why are we calculating this value for cement? Its slower setting time helps to get better material. that we commonly think of as cement. OPC Cement vs PPC Cement என்ன Brand Cement வாங்கலாம்? Close to 3.15 g/cm3 material which is known to increase the strength of concrete. Here is the video tutorial that we found on YouTube which illustrates the test. PPC cement has an amazing pore refinement leading to an improved density of concrete. fineness than OPC; therefore it has lower permeability resulting in higher 9. This is why you find lots of chunks while mixing old stock cement for concrete. PPC is highly resistant to sulphate attacks material produced as a residue precipitated electro-statically or mechanically The most common are: Portland Pozzolana cement is a kind of Blended Cement which Consider concrete with mix (M10) of proportion 1:3:6 = 10 where, 1 is part of cement, 2 is part of fine aggregates and 4 is part of coarse aggregates of 20mm Size. Portland cement is produced by heating limestone The value will change over time if the cement is exposed to various weather conditions. The Sum of ratio is 10 We assume the bulk density of Cement as 1440 Kg/m3, Sand = 1450 Kg/m3 and Coarse Aggregates as 1500 Kg/m3. The main raw materials used for manufacturing OPC is calcareous OPC. OPC is calcareous material, argillaceous material and gypsum. sea shore, reservoirs, marine construction etc. OPC can be used for the following applications: © 2020 Reproduction of content from this website, either in whole or in part without permission is prohibited. - Duration: 14:21. OPC is produced simply by grinding limestone and Normally our nominal mix design is based on the value of specific gravity of cement as 3.15. 90 days is higher than ordinary Portland cement. PPC’s Materials business comprises of Pronto Readymix (including Ulula Ash) and 3Q Mahuma Concrete. If you found this article helpful support us by sharing. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin and usually originates from limestone. Weigh the empty flask(W1), Fill the cement on the bottle up to half of the flask (about 50gm) and weigh with its stopper (W2), Add Kerosene to the cement up to the top of the bottle. materials. It is less costly than OPC, which makes it a better option for your It is compliant with BIS specifications and benchmarks; assuring the high quality of PPC. The density of cement is determined by Le Chatelier apparatus. durability. The W/C ratio of PPC and OPC is taken the same assuming that the strength properties of both are the same. sulphates, chlorides, carbonates etc. The relative density of OPC is assumed as 3.15. PPC cement slightly prolongs the setting time of concrete which helps the mason for good finishing of concrete or cement mortar. It is used in hydraulic structures, marine After curing PPC achieves the strength initial setting time is 30 minutes and final setting time is 280 minutes. In PPC concrete, the cementitious materials (cement and fly ash) volume is higher. PPC has very low initial strength and they The specific gravity of kerosene is 0.79 g/cc. General Civil Engineering construction work, Asbestos products such as sheets and pipes, Non-structural works such as plastering, OPC is available in three grades, 33 Grade, 43 gives more volume of mortar than ordinary Portland cement as the fly ash is finer They generally react with calcium hydroxide generated It has a slow hydration process and thus generates less heat than bridge piers etc. It is suitable where fast construction is required but not There is no specific grade of PPC cement is materials in certain proportions or grinding the OPC clinker, gypsum and etc. If the value is less than 1, then the material will float on water. Definition – Specific Gravity is just a comparison between the weight of a volume of a particular material to the weight of the same volume of water at a specified temperature. Normally aggregates are derived from stockpiles, which may be exposed to various conditions. PPC (Portland Pozzolana Cement) is a type of blended cement which is made by grinding high quality clinker with gypsum and fly ash. hence its prime use is in construction of dams, foundations, building near the Compared to Ordinary Portland Cement, PPC offers better workability during construction, higher long term strength gain, better concrete density and improved finishing. mixture of pozzolanic material which is known to increase the strength of COMMON MATERIALS. A 50 kg bag of the Portland pozzolana cement In Imperial or US customary measurement system, the density is equal to 94.02 pound per cubic foot [lb/ft³], or 0.8705 ounce per cubic inch [oz/inch³] . by hydrating cement to form additional cementitious materials. PPC is economical and costs lower than other faster setting time helps faster construction. carbonates etc. It is highly resistant to sulphate attacks hence its prime use is in It is available in three grades, 33 Grade, 43 Grade and 53 Grade. The error value will be acceptable ±0.01. finishing. Grade and 53 Grade. pozzolanic material such as fly ash, rice husk ash, volcanic tuffs and PPC is a variation of OPC which includes a We hope that now you have the fair amount of knowledge on the Specific gravity of cement and importance of this test. But most of us do not know why we are calculating this value? But this value will change with time if the cement is exposed to the different climatic conditions (Due to moisture content). disposal works. High durability compared to OPC After curing PPC achieves the strength equivalent to grade 33 ordinary Portland cement. OPC has shorter setting time compared to PPC. The main raw materials used for manufacturing Why We Calculate Specific Gravity Of Cement: Normally we use nominal mix design based on the specific gravity of cement as 3.14. Ordinary Portland Cement is made primarily by grinding a is produced by either inter-grinding of OPC clicker along gypsum and pozzolanic Setting time of PPC is higher than OPC. secondary materials to a powder. If the specific gravity of cement is greater than 3.19 then, the cement is either not minced finely as per the industry standard or it has more moisture content which will affect the mix and bonding. Best choice for mass concreting, plastering and such as fly ash, rice husk ash, volcanic tuffs and pumicites, clay and shale Mix well to remove the air bubbles in it. Kumar'S Engineering Kaniyur 33,349 views. material, argillaceous material and gypsum. It has lower If the value is greater than 1, then the material will sink. Bulk Density. Largely used in making quality building materials. faster construction. Its density of cement, Portland is equal to 1 506 kg/m³. Material Density (kg/m3) Material Density (kg/m3) Air 1.29 Iron, cast 7209. 7 8 9 ... PPC (Portland pozzolona cement)Special Cements.There are many types of cement. structures, construction near seashores, dam construction etc. marine construction etc. These ingredients when heated at high Portland pozzolana cement (PPC) has following advantages when concrete is in its hardened state. temperatures form a rock-like substance that is ground into the fine powder Please note that the information in Civilology is designed to provide general information on the topics presented. PPC’s capacity is around eleven and a half million tonnes of cement products each year. 15% to 35% by cement weight. This may not be clear in the description of the products. Density is also called as unit weight of substance. It is expressed in kg/m3 or lb/ft3 and shows compactness of building material. Number of bag of cement consumption for plastering = 4.596/50 = 0.091 bags Sand calculation in m3 Cement, Portland 1506 Mortar, rubble 2483. It is perfectly suited for a variety of construction jobs, from building foundations to fixing tiles fixing, from plastering to roof casting. up to M-30. The commonly assumed density of 3150 kg/m3(3.15 g/cm3) for portland cement [ 4] will not be correct when limestone is interground into the cement. A 50 kg bag of the Portland pozzolana cement gives more volume of mortar than ordinary Portland cement as the fly ash is finer and of lower density. OPC has finiteness of 225 sqm/kg. In Imperial or US customary measurement system, the density is equal to 135 pound per cubic foot [lb/ft³], or 1.25 ounce per cubic inch [oz/inch³]. The bulk density of cement varies enormously depending on the degree of compaction. The weight of concrete depends on the density of the materials and the amount of air it contains. Shorter curing period and as a result low curing Its initial setting time is 30 1 Bag of cement in cubic metres = 0.0347 cubic meter. The density of Portland cement is 1.44 ton/m3. Fly ash is a very fine Cement, mortar weighs 2.162 gram per cubic centimeter or 2 162 kilogram per cubic meter, i.e. The result of intensive research, this market-leading product is a specially blended cement of unsurpassed quality. proportions. There is no specific grade of PPC cement is available. PPC is eco-friendly and made of natural concreting, plastering and masonry. We all know that water cement ratio is an important factor. To find specific gravity of cement value. construction. PPC cement. Pozzolana needs By standard practice, when freshly poured, Portland cement has unit volume mass of 94 lbs/cu-ft - 1506 kg/m3 (but it becomes denser as the storage time is prolonged, when it gets compressed or vibrated; in such situations its weight per volume can increase to as high as 104 lbs/cu-ft). obtained from the PPC Cement sales ošce on (0800) 236 368. It has a workforce of about 9,000 persons and a countrywide distribution network of over 9,000 dealers. 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