1 It is available in 3 grades OPC 33 OPC43 and OPC53 and the number 33 43 53 corresponds to 28 days characteristic compressive strength of cement as obtained from standard test on cement 2 Initial setting time shall not be less than 30 minutes and final setting time
1 It is available in 3 grades OPC 33 OPC43 and OPC53 and the number 33 43 53 corresponds to 28 days characteristic compressive strength of cement as obtained from standard test on cement 2 Initial setting time shall not be less than 30 minutes and final setting time
Get Price53 Grade OPC cement is Used in RCC and prestressed concrete of higher grades cement grouts instant plugging mortars etc where initial higher strength is the criteria 43 Grade OPC Cement are commonly used for plastering works NonRCC structures pathways etc where initial setting time
Get Price53 grade Ordinary Portland Cement is high strength OPC and provides numerous advantages where ever concrete for special high strength applications is required The rate of development of strength is faster than 43 grade OPC 53 Grade OPC is different from Rapid Hardening Portland Cement IS 8041and their purposes of usage are different
Get PriceApr 30 2018 ii 43 grade OPC It is the most widely used general purpose cement For concrete grades upto M30 precast elements For marine structures but C3A should be between 5 8 iii 53 grade OPC For concrete grade higher than M30 PSC works bridge roads multistoried buildings etc
Get PriceAvailable in 43 amp 53 grade Dalmia OPC comes with quicker initial setting time amp higher early strength It is ideal for all applications of high strength concrete
Get PriceDec 08 2019 a Initial setting time in minutes not less than 30 and b Final setting time in minutes not more than 600 4 Compressive Strengtha 72 l hour not less than 23 MPa b 168 2 hours not less than 33 MPa and c 672 4 hours not less than 43 MPa OPC 53 Grade The 53 Grade portland cement is not used for ordinary construction works
Get PriceDec 22 2020 OPC is available in 3 grades namely grade 33 grade 43 and grade 53 PPC has low initial setting strength compared to OPC but hardens over a period of time with proper curing 138 views View upvotes Submission accepted by 1Ordinary Portland Cement OPC is the most commonly used cement for a wide range of applicationsThese
Get PriceHence it is advisable to check the initial setting time and final setting time of cement before you use it for the construction work You can also use admixtures to control setting time of cement Normally the initial setting time for 43 or 53 grade of OPC or PPC is 30 minutes and final setting time is 10 Hours
Get PriceInitial Strength 53 grade cement has a faster setting having a compressive strength of 27 MPa after 7 days but 43 grade cement gets 23 MPa after 7 days Fineness There is not much difference in composition Only OPC 53 grade cement has the grinding of clinkers to the maximum extent and this cement grade is finer than grade 43
Get PriceJan 09 2019 6 Differences between OPC and PPC cement i OPC has shorter setting time compared to PPC ii OPC has higher initial strength compared to PPC iii OPC cannot be used for mass concreting due to its high heat of hydration whereas PPC can be used for mass concreting iv OPC is less durable compared to PPC
Get PriceJul 15 2020 OPC Grade 43 IS 8112 1989 OPC Grade 53 IS 122691987 The Cost of RHC is about 10 more than the ordinary Portland cement The Initial setting time of cement is 30 minutes and the final C3A and the rest of the properties is the same as ordinary Portland cement Initial Setting time of SRPC is 30 minutes and the final
Get PriceJun 21 2018 Three grades of OPC cement are 33 43 and 53 as per IS Maximum quantity of water needed per 50 kg of cement for M15 grade of concrete is 32 litres According to Whitneys ultimate strain of strain of concrete is assumed to be 03 Shrinkage of concrete depends upon humidity of atmosphere and passage of time The heat of hydration of cement
Get PriceMar 04 2020 Grade 53 cement has a very quick setting time and attains quick strength The strength does not increase much after 28 days Grade 43 cement has a low initial strength but gains good strength over a period of time Grade 53 Cement sets fast and releases higher heat of hydration while Grade 43 Cement releases very low heat of hydration
Get PriceOct 06 2017 The time at which cement starts hardens and completely loses its plasticity is called Initial setting time of cement Or The time available for mixing the cement and placing it in position is an Initial setting time of cement If delayed further cement loses its strength For Ordinary Portland Cement The initial Setting Time is 30 minutes
Get PriceOct 17 2017 The time period elapsing between the time water is added to the cement and the time the needle fails to pierce the test block by 50 05 mm measured from the bottom of the mould is the initial setting time B FINAL SETTING TIME Replace
Get Priceof ordinary Portland cement 53 grade of OPC For 43 and 53 grade of cement NBSM has published its standard recently in 2076 BS before this it Initial setting time is minimum 45 minute
Get PriceOPC 43 cement shall conform to IS81121989 and the designed strength of 28 days shall be minimum 43 MPa or 430 kgsqcm Even though 43 Grade cements early strength is less as compared to that of 53 Grade with time it will attain the same ultimate strength as that of 53 Grade cement In the case of 43 Grade cement the initial setting of
Get PriceOPC is available in 3 grades namely OPC 33 OPC 43 and OPC 53 grade No specific grade is assigned for PPC OPC has a fineness of 225 sqmkg PPC has a fineness of 300 sqmkg The initial setting time of OPC should not be less than 30 minutes and the final setting time of OPC should not be more than 600 minutes The initial setting time of PPC
Get PricePortland Grade 43 cement was generally used in the construction of reinforced concrete also called RCC Class 43 is also used in RMC which is also called premixed concrete and is also used in precast concrete for construction purposes The fineness will be 225 kgm 2 Crush resistance 3 days later 23 Nmm 2 after 7 days later force 33 Nmm 2 after 28 days later force 43 Nmm 2
Get PricePPC The initial setting time of OPC is 30 minutes The initial setting time of OPC is also 30 minutes Final setting time of OPC cement is 280 minutes ie 1167 days The final setting time of PPC is 600 minutes ie 25 days It has more final setting time So it helps to better finishing of concrete
Get PriceSpecifications for Thatta Ordinary Portland Cement Thatta Cement Company Limited produces ordinary portland cement OPC Grade 43 meeting the requirements of Pakistan Standard PS 2322008R as follows Not less than 43 Setting Time Minutes Initial
Get PriceThe grade indicates the compression strength Mpa of the concrete that will attain after 28 days of setting 53 Grade cement is used for fast paced construction were initial strength is to be achieved quickly 53 Grade cement has fast setting compared to 43grade cement 53 Grade attains 27 Mpa in 7 days compared to 23 Mpa by 43grade cement
Get PriceThe grades of Ordinary Portland Cement OPC are a Grade 33 b Grade 43 c Grade 53 Grade 33 means after 28 days the strength of this type of cement with standard must be 33 Nmm2 The ratio of cement mortar must be 1 3 standard cement and sand The initial setting time of this cement is not less than 30 minutes and final setting
Get PriceThere is no problem to mix OPC and PPC technically if you will select right proportion to achieve desired compressive strength and durability parameters according to the structural requirement PPC is batched by blending OPC cement with pozzolonic
Get PriceTotal chloride content Not more than 010 6 Net proportion of lime to Silica Alumina and Iron oxide 066 102 7 Net proportion of Alumina to Iron oxide Not less than 066 IS Code of OPC 43 Grade cement is IS 8112 Read more
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