What is different grade of Portland cement 33,43 and 53

What is different grade of Portland cement 33 ,43 and53

What is different grade of Portland cement 33,43 and 53.

* introduction:- cement is main material for civil work .there is different grade of Portland cement that grade is 33 ,43 and 53 .the cement was first discovered in 1824 by Joseph Aspdin. do you know why its name Portland cement ? because it was discovered first in Portland city of United States of America. cement are made of lime(CaO) silica(SiO2) Alumina (Al2O3)and ferric oxide(Fe2O3).

What is different grade of Portland cement 33 ,43 and53
What is different grade of Portland cement 33 43 and 53

* different composition of Portland cement:- generally cement was discovered first in Portland place in United States of America where reach quantity of limestone is available so first cement was made by uses of limestone:- Portland cement composition is approx about lime 60 to 70% ,silica 20%to 25% ,Alumina 5% to10% and ferric oxide 2% to 3%.

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* meaning of grade of cement:- there is a different grade of Portland cement that is grade 33 grade 43 and grade 53. Grade 33 means comprehensive strength of cement gain after 28 days is 33 N/mm2.

* different grade of Portland cement:-
1) grade 33 portland cement
2) grade 43 Portland cement
3) grade 53 Portland cement

1) grade 33 Portland cement:- grade 33 means comprehensive strength of cement in after 28 days is 33N/mm2. it is widely used grade of cement for all general construction work like plastering and brickwork etc. It is low strength cement suitable for general environmental condition.

* Properties of grade 33 Portland cement:-
● their fitness =300kg/m2
● comprehensive strength after 3 days
= 16 N/mm2
● comprehensive strength after 7 days
= 23 N/mm2
● comprehensive strength after 28 days
=33 N/mm2

2) 43 grade of Portland cement:- 43 grade means the cement comprehensive strength after 28 days is about 43N/mm2. It is high strength Portland cement mostly used for different types of concrete RCC work and reinforcement work.

* properties of 43 grade of cement:-
●their fitness is about =225 Kg/m2
● comprehensive strength after 3 days
= 23 N/mm2
● comprehensive strength after 7 days
= 33 N/mm2
● comprehensive strength after 28 days
= 43 N/mm2

3) 53 Grade of Portland cement:– 53 Grade means comprehensive strength of cement after 28 days is about 53 N/mm2. It is high strength cement used in low quantity mostly used for Bridge formation ,concrete Railway sleeper construction ,high rise building ,RCC work , factory construction etc.

* properties of 53 Grade of Portland cement:-
●their fitness is about =225 kg/m2
● comprehensive strength after 3 days
= 27 N/mm2
● comprehensive strength after 7 days
= 37 N/mm2
● comprehensive strength after 28 days
= 53 N/mm2

* conclusion:- so there is 3 grade of cement for all civil work purpose like plastering of wall brickwork tile installation concrete work and RCC work Bridge formation and etc.

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