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Oil And Gas Wells Cement Class A Drilling Cement
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Oil And Gas Wells Cement Class A Drilling Cement Application
Row | Type of Cement |
1 | Oil and gas well cement Class A |
2 | Oil and gas well cement Class D |
MAECENAS IACULIS
ADIPISCING CONVALLIS BULUM
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- Abitur parturient praesent lectus quam a natoque adipiscing a vestibulum hendre.
- Diam parturient dictumst parturient scelerisque nibh lectus.
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Portland Cement Type 1-425
Portland Cement Type 1-425 Application
Row | Type of Cement | Type of Test | Forced limits matching Iran Standard under No. ISIRI389 | Delijan Cement Specs |
2 | Portland Cement Type 1-425 | 2 day Compressive Strength | Min 100 kg/cm2 | 200 +_ 10 kg/cm2 |
28 day Compressive Strength | Min 425 kg/cm2 Max 625 kg/ cm2 | 530 +_ 15 kg / cm2 |
Portland Pozzolan Cement Application
Portland Pozzolan Cement Application
This type of cement more in addition to the general uses, is used in huge structures as well, because It has less hydration heat that Cement type 1 and 2 and the most important advantage of this cement is its more chemical resistance and this type of cement is recommended in environments that the sulfates and Clare attack is more probable. Speed of growing resistance in this type of cement is less than cement type 2 and type 5 but in long term loss of resistance is recovered.
We should pay attention that to increase concrete’s workability you must not increase the proportion of water more than cement, on the other hand because of low speed and hydration heat and slow pozzolan reaction with cement compounds curing concrete with pozzolan cement has to be continuous and wet and in other words the concrete curing situation in comparison with Portland cements has to be provided for longer time.
Totally important specialties of concrete made of Pozzolan concrete are less permeability, high durability and favorable chemical resistant.
Grey Ordinary Portland Cement Type 5
Portland Cement CEM 142, 5 N-SR3
Portland Cement CEM 142, 5 N-SR3
Row | Type of Cement | Type of Test | Forced limits matching Iran Standard under No. ISIRI389 | Delijan Cement Specs |
7 | CEM I 42,5 N-SR3 | 2 day Compressive Strength | Min 10 Mpa | 15+_ 1 Mpa |
28 day Compressive Strength | Min 42.5 Mpa Min 62.5 Mpa | 44+_ 1Mpa | ||
Sulfur Trioxide | Min 3% | 2.5% |
Portland Cement CEM 142,5
Cement Type 2
Portland Slag Cement
Portland Slag Cement Application
Slag is the material collected on top of blast kiln of smelting iron and known as waste products of steel industry. If slag is gets cold slowly, it is crystal shape that is not consumed a lot. But if we make it cold fast, it gets amorphous or glassy that is used after milling, is applied in cement industry. While milling the slag you have to pay attention that where slag hardness is more that cement, each of them has to be milled separately and finally mix them. In Iran slag cement is divided to 3 kinds that will be said as follows:
- Portland slag cement with less than 25% of slag
- Portland slag anti sulfate cement with 25 to 70% of slag
- Portland slag cement with more than 70% of slag
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