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Every RCC product has been manufactured with quality in mind. Our products meet the highest industry standards and strictest quality control and have been certified by the American Petroleum Institute for use in deep sea oil exploration and drilling.

Ordinary Portland Cement (OPC) 

RCC Ordinary Portland Cement is used for general construction, and this cement can be used for making concrete that will not be in contact with soil or ground water. RCC Ordinary Portland Cement conforms to BS EN 197-1:2000 Clause CEMI 42.5N ASTM Type – I and Oman Standard (057) specifications.

  • Compressive Strength Data (N/mm2)
    for Ordinary Portland Cement - British Standard

    2 Days

    28 days

  • As per BS EN197-1:2000 CEMI 42.5N

    10.0

    42.5

  • Raysut Cement

    21

    48.0

Sulfate Resisting Cement (SRC) 

RCC Sulfate Resisting Cement is used for construction in areas where alkali soil and groundwater contain high amounts of sulfate. RCC Sulfate Resisting Cement conforms to both BS 4027:1996 and ASTM Type –V specification.

  • Compressive Strength Data (N/mm2)
    for Sulfate Resisting Cement - British Standard

    2 Days

    28 days

  • As per BS 4027:1996

    10.0

    28.0

  • Raysut Cement

    20

    48.0

  • Compressive Strength Data (N/mm2)
    for Sulfate Resisting Cement - British Standard

    3 days

    7 days

    28 days

  • ASTM Type V

    8.0 (1160)

    15 (2180)

    21 (3050)

  • Raysut Cement

    19.0 (2800)

    25 (3700)

    32 (4650)

Oilwell Cement (OWC)

RCC Oilwell Cement is available in Class A (O), used for general purpose oilwell construciton, or Class G (HSR), used in situations requiring high sulfate resistance. RCC Oilwell Cement conforms to the API Spec. 10A standards of the highest quality.

  • Compressive Strength Data (PSI)
    for Oilwill Cement Class G (HSR)

    Temp 30 Deg. C

    Temp 60 Deg. C

  • As per API Specifications : 10A

    300

    1500

  • Raysut Cement

    600

    1700

Pozzolona Well Cement

RCC Pozzolona Well Cement is a lightweight cement used for cementing shallow oil wells where elasticity is required. It is a blended oil well cement containing natural Pozzolona as one of its ingredients and made to suit the elevated standards of the most demanding clients.

  • Compressive Strength Data (PSI)
    for Pazzolana Well Cement

    Temp 38 Deg. C

    Temp 60 Deg. .

  • Petroleum Development of Oman Requirement

    400

    1400

  • Raysut Cement

    750

    1600

 

Portland Limestone Cement (PLC)

The PLC cement has comparable performance properties to ordinary Portland cement. It can be apply for any construction area i.e. Casting placement, building Water tanks ,Drainage ,roads, pipes , Concrete masonry work, Masonry mortars and of course Grouts works etc.

Workability. In general, the fineness of the limestone is the main factor that influences workability.  The use of limestone may alter the water demand, resulting in a slight increase or decrease of workability in compared with concrete made with conventional cements. Therefore, it appears that PLCs can be used following the same approach as conventional Portland cement.

Bleeding. Particles will absorb water onto their surfaces; therefore, bleeding is highly dependent on the surface area of the cement particles. As the surface area increases, water absorption increases. Increasing the fineness of the cement or limestone will add more surface area. Water absorption will therefore increase and bleeding will decrease.

Hydration. Limestone particles act as nucleation sites for hydration products. This means that small limestone particles are suspended in paste between clinker grains and become intermediate sites for C-S-H (the main binding phase in concrete) growth, improving efficiency. Therefore, the inclusion of limestone can increase the rate of hydration.
During hydration of low water-to-cementitious material ratio concrete mixes, a portion of the cement often remains unhydrated. It just stays in the concrete as filler, instead of using any other expensive filler.

 

Ground granulated blast furnace cement (GGBFS)

It is used along with the ordinary Portland cement or with other pozzolanic materials (with fly ash ) in concrete. It improves the durability of concrete which essentially increase the lifespan of concrete structures.

Slag Cement Benefits and Use in Concrete:

Slag cement is a hydraulic cement formed when granulated blast furnace slag (GGBFS) is ground to suitable fineness and is used to replace a portion of Portland cement.  It is a recovered industrial by-product of an iron blast furnace.  Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that yield desired reactive cementitious characteristics when ground into cement fineness. 

 Benefits of using slag cement:

  • Improved workability
  • Easier placeability and finishabiltiy
  • Higher long-term compressive and flexural strengths
  • Reduced permeability
  • Improved durability and resilience
  • More consistent performance
  • Lighter color

The hydration products of slag cement are generally found to be more gel-like (less crystalline) than the products of hydration of Portland cement; thus, they reduce the permeability of the cement paste. Slags are used as a replacement of Portland cement in amounts typically between 25 and 70% of the total mass of cementitious material. Slag concretes have improved long-term strengths even though their early strength development is lower than Portland cement concretes. They also have lower permeability and improved durability. Slag cement generally costs less than Portland cement.