Saad Gypsum and Cement Products was established in 2002.
The business has grown tremendously in the last ten years, and today we are one of the leaders in cement and gypsum trading throughout the entire UAE. We have a huge and loyal customer base, including the most reputed ready mix, precast and block factories in the region, and we are currently the authorised dealer for the Sharjah Cement Factory.
Integrity: doing what is right without fear in all circumstances.
Team work: helping one another and working with mutual trust and respect.
Excellence: taking pride in our competence and in doing our work in the most efficient and effective way.
Reliability: remaining consistent in providing the best performance and service at any time.
Innovation: continuously seeking new ways to do our work better.
Sharjah cement factory well cements are manufactured to API specification 10A. These are consistent products obtained by grinding clinker, consisting essentially of hydraulic Calcium Silicates and usually containing one or more forms of Calcium Sulfate.
Well cement is produced at Sharjah Cement Factory during special campaigns of high sulfate resistant clinker. This is stocked separately from other product clinkers and finished product is stored separately in a dedicated silo. Well cement is specified using classes A, B, C, D, G and H and the grade ordinary(O), moderate sulfate resistance (MSR) and High sulfate resistance (HSR).
| API Product Classes | Packing | Delivery |
|---|---|---|
|
Class H High Sulfate resistant, Medium Sulfate resistant Class G High Sulfate resistant, Medium Sulfate resistant Class A Ordinary Class B High Sulfate resistant, Medium Sulfate resistant |
Bulk, Bulk Bag or 50 Kg Paper Bags | By Truck or overseas by ship |
Typical Chemical Properties of Sharjah Cement Factory Well Cement
| Specification | API Standard Requirement | Actual Values (Class G- HSR) |
|---|---|---|
| Chemical Composition | ||
| Loss on Ignition | ≤ 3.0% | < 1.5% |
| Insoluble Residue | ≤ 0.75% | < 0.6% |
| MgO | ≤ 6.0% | < 3.0% |
| SO3 | ≤ 3.0% | < 2.5% |
| Alkali Content expressed as Na2O equivalent | ≤ 0.75% | < 0.60% |
| C3S | 48-65% | < 65% |
| C3A | ≤ 3.0% | < 3.0% |
| C4AF + 2C3A | ≤ 24% | < 20% |
Typical Physical Properties of Sharjah Cement Factory Well Cement
| Specification | API Standard Requirement | Actual Values (Class G- HSR) |
|---|---|---|
| Free Fluid Content | ≤ 5.9% | <5.9% |
| Compressive Strength | ||
| 8h, 38°C | ≥ 2.1 Mpa | > 4.0 Mpa |
| 8h, 60° C | ≥ 10.3 Mpa | > 10.5 Mpa |
| Thickening Time | 90-120 Min | < 120 Min |
| Maximum Consistency | ≤ 30 Bc | < 26 Bc |
Our Manufacturer’s Ordinary Portland Cement (OPC) is manufactured to comply with the requirements of BSEN197-1:2011 type CEM I Portland cement strength class42,5N and ASTM CI50-09 type I Our Manufacturer’s (OPC) is recommended as general purpose cement for use in concretes, mortars, renders, screed and grouts.
Ordinary Portland cement (CEM I) is the most commonly used cement for a wide range of applications. These applications cover dry-lean mixes through general purpose ready - mix, to high strength pre-cast and pre-stressed concretes. Our Manufacturer’s (OPC) is suitable for use with a wide range of additives and admixtures to extend the properties and uses of concretes.
Our Manufacturer’s (OPC) is producing using carefully selected raw materials. Strict quality control throughout each stage of the manufacturing process ensures that a consistent final product is achieved. Portland cements are predominantly compounds of calcium silicate and calcium aluminate with a small proportion of gypsum. They are produced by burning or sintering, at a temperature in excess of 1400oc, a finely ground mixture of raw materials which contain predominantly calcium carbonate, aluminium oxide, silica and iron oxide. The cooled clinker formed is ground under controlled conditions with the addition of typically 5% gypsum.
Technical information on the quality of Our Manufacturer’s OPC (CEM I) is available to customers on request from Mr. Ziad Saad. Reports of tests providing data on fineness, setting times, soundness, chemical composition including alkali levels and compressive strengths of mortar prisms, are also available on a weekly basis.
Optimum performance in terms of strength and durability is achieved in concrete when the water / cement ratio is kept as low as possible, consistent with ensuring satisfactory placing and thorough compaction.
Other factors affecting strength include conditions of curing as well as the individual properties of the constituent materials and their proportions in the mix. The potential strength of any Portland cement based product will only be best developed under saturated conditions. Loss of any water to the surroundings should be guarded against and for a period of at least seven days precautions should be taken to keep the concrete moist and to prevent premature drying. The rate of strength development will depend on ambient conditions and the initial temperature there is increased risk of loss of water by evaporation, cracking caused by thermal stresses and reduced ultimate strength.
Our Manufacturer’s Sulfate resisting Portland cement products are manufactured to comply with the requirements of BS 4027:1996. In addition, we manufacture ASTM C150 – 09 Type II and Type I, Moderate sulfate resisting cement respectively.
Sulfate (SO4) is a chemical compound found in some soils and water that attacks concrete. Sewage and some ground waters both contain dangerous amounts of sulfate. Dissolved in water, sulphate will penetrate hardened concrete and attack it by calcium aluminates and sulphoaluminates in to calcium sulphoaluminates (Ettringite). The effect on the concrete is expansion which tears the concrete apart.
Type II cement Moderate Sulfate resistant cement has greater resistance to sulfate attack than Type I because the amount of tri calcium aluminate (C3A) in Type II cement is limited to less than 8%. The calcium aluminates are the compounds in hardened cement with which the sulfate reacts, therefore taking them out of cement prevents or limits the formation of the expansive compounds. The C3A content in Type V high sulfate resistant cement is limited to less than 5%. Cement manufactured to BS 4027:1996 is required to have a C3A content of less than 3.5%.
In ground conditions requiring increased resistance to chemical attack Our Manufacturer’s SRPC, manufactured to comply with BS4027:1996, Moderate Sulfate resistance cement ASTM C150 – 09 type II and ASTM C150 - 09 Type V Sulfate resistant cement is recommended to give improved durability and service life. In addition these cements offer a moderate reduction in the heat of hydration.
Our Manufacturer’s OPC is produced using carefully selected raw materials. Strict quality control throughout each stage of the manufacturing process ensures that a consistent final product is achieved. Portland cements are predominantly compounds of calcium silicate and calcium aluminate with a small proportion of gypsum. They are produced by burning or sintering, at a temperature in excess of 1400o C, a finely ground mixture of raw materials which contain predominantly calcium carbonate, aluminium oxide, silica and iron oxide. The cooled clinker formed is ground under controlled conditions with the addition of typically 5% gypsum.
Technical information on the quality of Our Manufacturer’s SRPC is available to customers on respect from Mr. Ziad Saad. Reports of tests providing data on fineness, soundness, chemical composition including alkali levels and compressive strengths of mortar prisms, are also available on a weekly basis.
Optimum performance in terms of strength and durability is achieved in concrete when the water/cement ratio is kept as low as possible, consistent with ensuring satisfactory placing and thorough compaction.
Other factors affecting strength include conditions of curing as well as individual properties of the constituent materials and their proportions in the mix. The potential strength of any Portland cement based product will only be best developed under saturated conditions. Loss of any water to the surroundings should be guarded against and for a period of at least seven days precautions should be taken to keep the concrete moist and to prevent premature drying. The rate of strength development will depend on ambient conditions and the initial temperature of the mix. At higher temperatures there is increased risk of loss of water by evaporation, cracking caused by thermal stresses and reduced ultimate strength.
Our Manufacturer’s Moderate sulfate resisting Portland cement products are manufactured to comply with the requirements of BS 4027:1996. In addition, we manufacture ASTM C150-09 Type V, Moderate sulfate resisting Cement and sulfate resisting Cement respectively.
Sulfate (SO4) is a chemical compound found in some soils and water that attacks concrete. Sewage and ground waters both contain dangerous amounts of sulfate. Dissolved in water, sulphate will penetrate hardened concrete and attack it by converting calcium aluminates and sulphoaluminates into calcium sulphoaluminates (Ettringite). The effect on the concrete is expansion which tears the concrete apart.
Type II cement Moderate Sulfate resistant cement has greater resistance to sulfate attack than Type I because the amount of tri calcium aluminate (C3 A) in type II cement is limited to less than 8%. The calcium aluminates are the compounds in hardened cement with which the sulfate reacts, therefore taking them out of cement prevents or limits the formation of the expensive compounds. The C3 A content in type V high sulfate resistant cement is limited to less than 5%. Cement manufactured to BS 4027:1996, Moderate sulfate resistant cement ASTM C150-09 type V Sulfate resistant cement is recommended to give improved durability and service life. In addition these cements offer a moderate reduction in the heat of hydration.
Our Manufacturer’s MSRPC is produced using carefully selected raw materials. Strict quality control throughout each stage of the manufacturing process ensures that a consistent final product is achieved. Portland cements are predominantly compounds of calcium silicate and calcium aluminate with a small proportion of gypsum. They are produced by burning or sintering at a temperature in excess of 1400oc, a finely ground mixture of raw materials which contain predominantly calcium carbonate , aliminium oxide, silica and iron oxide. The cooled clinker formed is ground under controlled conditions with the addition of typically 5% gypsum.
Technical information on the quality of Our Manufacturer’s SRPC is available to customers on request from Mr. Ziad Saad. Reports of test providing data on fineness, setting times, soundness, chemical composition including alkali levels and compressive strengths of mortar prisms, are also available on a weekly basis.
Optimum performance in terms of strength and durability is achieved in concrete when the water/ cement ratio is kept as low as possible, consistent with ensuring satisfactory placing and thorough compaction.
Other factors affecting strength include conditions of curing as well as the individual properties of the constituent materials and their proportions in the mix.
The potential strength of any Portland cement based product will only be best developed under saturated conditions. Loss of any water to the surroundings should be guarded against and for a period of at least seven days pre cautions should be taken to keep the concrete moist and to prevent premature drying. The rate of strength development will depend on ambient conditions and the initial temperature of the mix. At higher temperatures there is increased risk of loss of water by evaporation, cracking caused by thermal stresses and reduced ultimate strength.
Our Manufacturer’s Blast furnace Cement is manufactured to comply with the requirements of BS EN 197-1:2011 strength class 42.5 and ASTM C595-08 type IS. It typically has a Blast furnace Slag content of 28-70%.
Blast furnace Cement contains a controlled blend of Portland cement and Ground Granulated Blast furnace Slag. It is recommended as an alternative to CEM-I Portland Cement for most applications including civil engineering projects, buildings, ready-mixed concrete applications and concrete products.
The properties of Our Manufacturer’s Blast furnace Cement concrete compared with CEM-I Portland Cement concrete are.
Blast furnace Cement concrete is less permeable and chemically more stable than normal concrete. The guide to construction of reinforced concrete in the Arabian peninsula published by the concrete Society and CIRIA recommend Blast furnace Cement where the following forms of deleterious attacks are present:-
Optimum performance in terms of strength and durability is achieved in concrete when the water / cement ratio is kept as low as possible, consistent with ensuring satisfactory placing and compaction.
Other factors affecting strength include conditions of curing as well as the individual properties of the constituent materials and their proportions in the mix. The potential strength of any Blast furnace Cement based product will only be best developed under saturated conditions. Loss of any water to the surroundings should be guarded against and precautions should be taken, for a period of at least seven days, to keep the concrete moist and prevent premature drying. The rate of strength development will be dependent on ambient conditions and the initial temperature of the mix. At higher temperatures there is increased risk of loss of water by evaporation, cracking caused by thermal stresses and reduces ultimate strength.
Typically the strength development will be as shown in the following table:
Strength achieved as percentage of 28-day strength
| Age | CEMI | CEM IIIA | CEM IIIA |
|---|---|---|---|
| 7 Days | 75% | 45 to 55% | 40 to 50% |
| 28 Days | 100% | 100% | 100% |
| 90 Days | 105 to 110% | 110 to 120% | 115 to 130% |
Sharjah cement Factory produce the following Blast furnace cements
CIIIA is the most widely used combination and is commonplace for ready - mixed, and precast concretes in all types of applications. CIIIB tends to be used for specialist applications such as those requiring low heat rise or high sulfate resistance.
CIIB-S is used for applications such as power-floated floors, mortars, screeds and some precast concrete products that require relatively high early-age strength.
Ground granulated slag (GGBS) is manufactured from blast furnace slag, a by-product from the making of iron. The cementitious properties of blast furnace slag were discovered in the late 19th century and it has been widely used in cement manufacture for over 100 years. GGBS is supplied as a separate component for concrete and is added at the concrete mixer. It generally replaces between 20 and 80 per cent of the normal Portland cement. Production of iron blast furnace slag.
The blast furnaces used to make iron operate at temperatures up to 20000 C and are fed with a carefully controlled mixture of iron ore, coke and limestone. The iron ore concerts to iron which sinks to the bottom of the furnace. The remaining materials form a slag that floats on top of the iron. The molten iron and slag are drawn off at regular intervals through tapping holes in the base of the furnace. As the slag is drawn off, its chemistry is monitored as a check on the performance of the furnace. This ensures that blast furnace slag is very consistent in chemical composition.
After being tapped from the furnace and separated from the iron, the slag is cooled. The cooling rate of the molten slag determines its physical characteristics. If the material is left to gradually air-cool, it is of no use as a cementitious material and is used as an aggregate. Where the blast furnace slag is to be used for the manufacture of GGBS, it has tp be rapidly quenched in water. This process is known as granulation because it produces glassy granules, similar in appearance to coarse sand. These have excellent cementitious properties.
To produce GGBS, this granulated blast furnace slag is dried and ground to a fineness similar to that of Portland cement. Sharjah Cement factory operators a sophisticated production facility, to produce GGBS to an accurately controlled fineness.
GGBS contains the same principal oxides as Portland cement, but in slightly different proportions. The following table compares typical percentages of the principal oxides in GGBS with those in Portland cement:
Throughout the manufacturing process, the physical and chemical properties of GGBS are carefully monitored and controlled. The finished product conforms to both:
GGBS is normally used in combination with Portland cement. The GGBS and cement are added into the concrete mixer as separate constituents. Where appropriate, the ratio of GGBS to cement can be varied according to the technical requirements for any particular application. The British Standard for Concrete (BS8500) uses the following notations for specifying the percentage of GGBS as a percentage of the total cementitious content:
CIIIA is the most widely used combination and is commonplace for ready-mixed, site-mixed and precast concretes in all types of applications. CIIIB tends to be used for specialist applications such as those requiring low heat rise or high sulfate resistance. CIIB-S is used for application such as power-floated floors, mortars, screeds and some precast concrete products that require a relatively high early-age strength. CIIA-S is rarely used.
Concrete containing ggbs is less permeable and chemically more stable than normal concrete. This enhances its resistance to many forms of deleterious attack, in particular:-
42431, Abhu Dhabi, UAE
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