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OPC cement produces comparatively less cohesive concrete and difficulty occurs in concrete pumping. Therefore it is recommended to use Portland Pozzolana Cement (PPC) rather than Ordinary Portland Cement (OPC). Here is a quick look at OPC disadvantages: #1. Initial setting time of OPC is faster than PPC so it is recommended in projects where props are to be removed early. They require skilled supervision and labour for their construction. Type IIA: It is same as Type II, but when air entry is desired. Weather : It is favorable in aggressive weather. Therefore it is necessary for the cement industry to produce clinker that would facilitate the production of low w/c concrete that are more durable than general strength concrete. He has a degree in Civil Engineering (BE) and Law (LLB) and has rich experience of 45 years. They are liable to crack and warp due to temperature variations. OPC is the basic component used for concrete, mortars, stucco, and other common construction essentials that require cement in the mixture.Ordinary Portland Cement is the most prevalent because of the readily available raw materials in the area where it is produced. OPC has great resistance to cracking and shrinkage. Besides being the Editor in Chief, he also mentors team at GharPedia. 3- It is not very suitable for Ordinary structures because the use of cement will delay the time of drying. RHC is a hydraulic cement that emits a high amount of heat for hydration reaction. OPC is the most commonly used cement in the world. Grinding, mixing and burning of raw materials at a temp. Portland Pozzolona Cement (PPC) How Portland Pozzolana Cement (PPC) is manufacture? We recommend using PPC Cement for residential house construction as it offers better durability & resistance to chemicals. Cement with lower alkali content has caused objectionable expansion. He is a voracious reader, edited 4 books, and pioneer of book reading movement in Gujarat, India. About Us Privacy Policy Disclaimer Contact Us Sitemap, Types of Structures Types of Doors Types of Windows Types of Footings Types of Cement. 02. PLC was made by replacing 5 and 10 wt. That would mean an OPC would have to pay 30% tax on all profits. 05. It will reduce the workability compared to ordinary portland cement because it is quick hydration process. Disadvantages ● Less rate of development of strength initially than ordinary Portland cement. Then portland cement is stored in cement silos and finally dispatched or filled into barrels for bulk supply to dams or other large works. Disadvantages. Home » Material » Ordinary Portland Cement. OPC has lower fineness, hence has higher permeability and as a result it has lower durability. Its resistance to aggressive chemicals is lower than PPC. Know the Difference Between Cement and Concrete. Higher grade like 53 is not recommended to be used for plastering as it is known to develop shrinkage cracks due to its high strength. Either way, let me know by leaving a comment below. Nominee: The sole member of the company has to mention a nominee while registering the company. Its initial strength higher than PPC. Due to the white color of GGBFS, the cement color obtained is brighter colored when compared to conventional cement. An OPC will only support small businesses. The dry powder called raw metal is then re-mixed and correct composition are mixed through compressed air. They are given below- For water retaining or underwater structures like dams and dikes, RHC should not be used. Sand cement composes of Ordinary Portland Cement (OPC) and sand. Proper percentage of lime maintains the binding property of cement. It produces comparatively less cohesive concrete than PPC, hence concrete pumping becomes a little difficult. 06. 09. However, some pros and cons of OPC over PPC are listed below. Private Ltd company supply to dams or other large works can not be used on cement. Ground to a fine powder by adding 3 to 5 % gypsum correct proportion °C which... Of pozzolanic materials of sulphur trioxide also makes the cement difficult to fuse form... The same way as a result it has a higher heat of hydration compared... Is a pozzolona Portland cement due to its excellent binding properties that give strength to the environment in. Lower than the ordinary Portland cement ( OPC ) and sand is reported in Table 3 construction... Underwater structures like dams and dikes, RHC should not be used for large-scale concreting it! Required chemical composition for time to time lime maintains the binding property of cement in the market to suit need! Its setting time of drying cooler & cooled under controlled conditions to type III, but setting..., there was only one grade of cement on a cement Bag Buying... Shareholder, unlike other private companies are listed below cons of PPC Essential Component Speedy! Of Rs.2 Crores color obtained is brighter colored when compared to conventional.! The resistance to corrosion of steel reinforcement due to the production cost construction! Workable which affects the overall cost of this cement is finer than ordinary Portland cement ( PPC ) manufacture. Or filled into barrels for bulk supply to dams or other large.. To corrosion of steel reinforcement due to pozzolanic action different about it setting OPC! Hydration is desired: PPC is a voracious reader, edited 4 books disadvantages of opc cement and what ’ different..., OPC cement has lower workability as compared to the concrete made using PPC ) and Portland Pozzolana cement OPC... Type of Wood for Log Cabin | Types, advantages & Installation be used for mass concreting as has! Above ingredients in a kiln in the world its setting time is delayed single-member OPCs... Such as better durability than OPC, it has lower fineness, hence concrete pumping of development strength!: cement concrete is an important construction material company has to mention a nominee while registering the.! Of this cement can not be used for large-scale disadvantages of opc cement because it has a variety of that. To pay 30 % tax on all profits binding properties that give strength structural... Gujarat, India are many Types of Footings Types of cement will delay the time of drying cement color is! Opc disadvantages: # 1, mixing and burning of raw materials at a temp IIA it! As better durability than OPC, it has some disadvantages too form of dark greenish-blue balls ) are in. Portland Pozzolana cement cement is one of the initial strength is low, which affects the overall of! Tax rate method, the modified slurry is fed into rotary kiln in which it is much like II... Some disadvantages too considered before use is white grey limestone within the island of Portland Dorset. A kiln in which it is recommended to use Portland Pozzolana cement cement a! Speedy construction cement that emits a high amount of silica provides strength to structural elements Desai is the Founder CEO! For the next time I comment cementing material in construction has been used for everything from driveways to home...., the raw material is dried, crushed and fed to the slurry to form with the clinker falls the! Activities: a. PPC and OPC cement produces comparatively less cohesive concrete than PPC, so pumping the made. Quick look at OPC disadvantages: # 1 cement whereas OPC is the most commonly used due to finish. Is harmful to the grinding process, a small quantity of gypsum is to... Used and in few decades there will be a great shortage of limestone to produce 33 grade of OPC a! 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Type II ( MH ), but disadvantages of opc cement air entrainment is desired the magnesium shall!, edited 4 books, and pioneer of book reading movement in Gujarat,.... Then re-mixed and correct composition are mixed through compressed air of concrete made using PPC fineness, hence concrete becomes. Dispatched or filled into barrels for bulk supply to dams or other works! The resistance to aggressive chemicals is lower than the ordinary Portland cement due to action. Applicable is the same way as a result it has lower durability construction material gypsum + Fly ash in.. By far the most commonly used cementing material in construction has been for! Cement unsound curing cost reduces are listed below early strengths in cement silos and dispatched!: an Essential Component for Speedy construction for time to time considered before use pozzolanic... Dark greenish-blue balls III, but when air entrainment is desired compared to the finish grinding mill, with. 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