• P.O. Box. 114750, 403, Al Jahra Building, Khalid Bin Walid Street, Dubai
  • +971 55 470 4133

Daze General Trading LLC

Services

  • Silica Fume (Microsilica)-Topken & Ferrosil

    Daze has trade dealings for the distribution of “Ferrosil” & Topken Silica fume, a beneficial, super pozzolonic mineral additive for cement based materials like Cementatious Products. “Ferrosil” & Topken Silica fume originates from the production of silicon metal and Ferro- Silicon Alloys. The material consists of amorphous, spherical particles with bulk density of 200-300 kg/m3, and in the form of un densified Silica Fume. Through a process we will increase the bulk density of the undensified Silica fume and the material is then produced as densified silica fume. The country of origin of “Ferrosil” & Topken brand our silica fume is from China.

    “Ferrosil” and Topken Silica fume is manufactured with stringent quality and environmental control and it meets the mandatory requirement of the international standards. The following data sheet will give you micro silica’s (Silica Fume’s) specification in different standards as well as our the “Ferrosil” & Topken Silica fume’s standard’s.

Comparison Of International Silica Fume Standards

The figures mentioned on the table is the mandatory chemical and physical requirement. To know more about our Silica fume contact us the sole Distributor, Daze General Trading LLC, Dubai on 009714 3975547 or visit our website www.dazetrading.com for online enquiries.

Mandatory Physical & Chemical Requirements
  ASTM CEN GB INDIAN TOPKEN Ferrosil
  American Chinese European BIS UAE LAB (ASTM) UAE LAB (ASTM)
  ASTM C GB/T18 prEN   Result Result
  1240-01 736-2002 13263-1   1240-01 1240-01
SiO2(%) >85.0 >85.0 >85.0 >85.0 88.4 93.4
Moisture (%) <3.0 <3.0 <3.0 <3.0 1.1 059
Loss on Ignition (%) <6.0 <4.0 <6.0 <6.0 3.1 2.3
Bulk Density (Kg/m3)         650 650
Pozzolanic Activity Index (%) >105 at 7   >85 at 28   121 at 7 130 at 7
  Days accel.   Days accel.   Days accel. Days acc
  Curing   Curing   Curing Curing
Retained on 45 Micron Sieve (%) <10.0   <10.00   1.5 2.2
Specific Surface (BET) m2/g         23.2 23.2
  • Fly Ash

    Pulverised Fuel Ash (PFA) - ASTM C 618 Class F—INVECRETE Brand

    Fly Ash is a fine residue resulting from the burning of coal at high temperatures. The most common sources of Fly Ash are electric power generating stations. Fly Ash has become the predominant pozzolan in use throughout the world due to performance and economic factors. The main content of Fly Ash is silica. The Origin of our Fly Ash is from India.

    There are 2 types of Fly Ash Class F and Class C. The types are differentiates based on the sum of Silicon Dioxide (SiO2) + Aluminium Oxide (AI2O3) + Iron Oxide (Fe2O3). If the sum of this is greater than or equal to 70% it is called Class F Fly ash and if the percentage is greater than or equal to 50% it is called Class C Fly Ash.

    Economic Benefits: It replaces Portland cement up to 20 - 50%

    Technical Benefits on Fresh Concrete Technical Benefits on Hardened Concrete
    Improves workability Increases strength (long term)
    Improves pumpability Improves pumpability
    Extends time of set Extends time of set
    Decreases bleeding Decreases bleeding
    Decreases early rate of strength pain Decreases early rate of strength pain
    Reduces heat evolution Reduces heat evolution
  • Ground Granulated Blast Furnace Slag (GGBS-6688)

    GGBFS and finely ground palletized slag’s are marketed separately to the concrete producer and used as a partial replacement for Portland cement. Replacement dosages between 5% and 70% by mass of cement material are common. Fineness, glass content and mineral constituents are generally considered to be important factors regarding the cement activity of slag. We have sources of GGBS from UAE, India and China.

    Effects of Slag on properties of fresh and hardened concrete

    Concrete with Type IS cement or with higher dosages of GGBFS added at the mixer usually will have lower heat of hydration

    Concrete containing slag may show longer time of setting than straight Portland cement mixtures particularly. for moderate and higher dosages and at lower ambient temperatures

    Increasing slag dosage is associated with lower permeability in concrete

    Concrete containing GGBFS dosages greater than 35% will give in improvement in the resistance to sulphate attack as well as suppression of alkali aggregate expansion

    Chemical Properties of Portland Cement and Blast Furnace Slag

    onstituents OPC GGBFS
    Lime (CaO) 60% - 66% 32% - 45%
    Silica (SiO2) 19% - 24% 32% - 42%
    Alumina (Al2O3) 3% - 8% 7% - 16%
    Iron (Fe2O3) 1% - 5% 0.1% - 1.5%
    Magnesia (MgO) 0% - 5% 5% - 15%
  • Minerals & Ores

    We are dealing in to the following categories of Minerals & Ores

    Bentonite

    Barite

    Bauxite

    Metakaolin(China Clay)

    Iron Ore

    All types of Cementatious Materials

    Concrete Additives

    Construction Chemicals

    Building Materials

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