Ores Minerals Wholesale Suppliers, Manufacturers & Distributors in Qatar

Mar-13-23

Micro Silica (Silica Fume)

(1.0)

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MOQ: MOQ: Not Specified

Maxtech International Trading

Supplier From Doha, Qatar

Supplier Of Silica Sand

Maxtech International Trading

Supplier From Doha, Qatar

Supplier Of Silica Sand

Microsilica (silica fume) is a by-product of silicon metal or ferrosilicon industries, is an amorphous silicon dioxide SiO2. This product reacts chemically with the calcium hydroxide in the cement paste which yields a calcium silicate hydrate gel that significantly enhances strength and durability. The super fine microsilica fills the voids between cement particles creating a very dense, less permeable concrete.

Physical characteristics:
Color: gray or gray white powder

Bulk density: 320-700 kg/m3

Chemical composition:
Items SiO2 Al2O3 Fe2O3 MgO CaO Na2O Moisture
Content
75-98%
1.0-0.2%
0.9-0.3%
0.7-0.1%
0.3-0.1%
1.3-0.2%
Fineness:
the fineness of the silica fume is less than 1 1/4m, and the average particle size is 0.1 0.3 1/4m, and the specific surface area is 20 - 28 m2/g. The fineness and specific surface area are about 80-100 times of cement and 50-70 times of fly ash.

Maxtech Micro Silica supplies will be as per QCS 2014 (ASTM C1240):
SiO2: >/= 92%

LOI: <6

Moisture Content: <1%

Activity Index at 7 days: > 105%

Application & Benefits of Microsilica (Silica fume):
In concrete:
The micro silica fume powder can be well filled in the cement particle space and make the slurry denser, mainly in the following:

Increase strength
Increase the density
Frost resistance
Early strength
Anti abrasion and anti-cavitation resistance
In Refractories:
Microsilica powder is widely used in the refractory industry. It has an important effect on the improvement of the amorphous refractory.
The production of amorphous and shaped refractory products as additives makes the strength and high temperature performance greatly improved.
Other Application:
Elastomers/Polymers

Fertilizer

Oil & Gas Well

Fiber Cement

Shotcrete

Wallboard

Mar-13-23

Ground Granulated Blast Furnace Slag (Ggbfs)

(1.0)

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MOQ: MOQ: Not Specified

Maxtech International Trading

Supplier From Doha, Qatar

Supplier Of Slag

Maxtech International Trading

Supplier From Doha, Qatar

Supplier Of Slag

GGBFS
Ground granulated blast furnace slag (GGBFS)

The ground granulated blast furnace slag (GGBFS) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability. This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree Celsius. The process is carried out in a blast furnace. The formation of GGBFS is not direct. The by-product of iron manufacturing is a molten slag and molten iron. The molten slag consists of alumina and silica, also with the certain amount of oxides. This slag is later granulated by cooling it. For this, it is allowed to pass through a high-pressure water jet. This result in quenching of the particles which results in granules of size lesser than 5mm in diameter. The main constituents of blast furnace slag are CaO, SiO2, Al2O3 and MgO. These are the minerals that are found in most of the cementitious substances. The particles are further dried and ground in a rotating ball mill to form a fine powder, known as ground granulated blast furnace slag cement. Now different methods can be employed to perform the main process called as the quenching.

Applications & Benefits of GGBFS:
In concrete:
The incorporation of ground granulated blast furnace slag in concrete manufacture gains many advantages which are mentioned below:

GGBFS in concrete increases the strength and durability of the concrete structure.
It reduces voids in concrete hence reducing permeability
GGBFS gives a workable mix.
It possesses good pumpable and compaction characteristics
The structure made of GGBFS constituents help in increasing sulphate attack resistance.
The penetration of chloride can be decreased.
The heat of hydration is less compared to conventional mix hydration.
The alkali-silica reaction is resisted highly.
These make the concrete more chemically stable.
Gives good surface finish and improves aesthetics.
The color is more even and light.
Lower chances of efflorescence.
The maintenance and repair cost of structures are reduced thus increasing the life cycle of concrete structures.
Unlike cement, GGBFS does not produce carbon dioxide, sulphur dioxide or nitrogen oxides.
White Cement:
White Portland Cement is of high quality, whiteness and strength, it essentially has the same properties and characteristics as gray cement, except for color.

It is widely used in numerous applications such as precast concrete, cast-in-place concrete, terrazzo, median barriers, curbs, tile grout, paint, masonry units, swimming pools, glass fibre reinforced surface bonding mortars.

May-06-24

Silica Sand

(1.0)

$80

MOQ: MOQ: Not Specified

Sobhan National

Supplier From Qatar

Supplier Of Silica Sand

Sobhan National

Supplier From Qatar

Supplier Of Silica Sand

Micro silica and silica sand from iran

May-06-24

Micro Silica

(1.0)

$80

MOQ: MOQ: Not Specified

Sobhan National

Supplier From Qatar

Supplier Of Silica Sand

Sobhan National

Supplier From Qatar

Supplier Of Silica Sand

Micro silica from iran

Mar-08-18

Gypsum Powder

(1.0)

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MOQ: MOQ: Not Specified

Gulf Dynamics International

Supplier From Doha, Qatar

Supplier Of Gypsum

Gulf Dynamics International

Supplier From Doha, Qatar

Supplier Of Gypsum

Gypsum powder or plaster is a building material that features similar properties to mortar or cement. The powder is created by heating gypsum a soft naturally occurring mineral to roughly 300 degrees Fahrenheit (150 Â°C) and then mixing with water. The resulting paste hardens as it cools, developing a relatively soft, pliable finished product. Unlike mortar or cement, which dry much harder. It can be sanded or otherwise manipulated once cured, making a valid option for aesthetic, non-load bearing purposes.

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Feb-05-25

Steel Slag

(1.0)

$27

MOQ: MOQ: Not Specified

Homadis Trading Vahab Company

Supplier From Doha, Qatar

Supplier Of Slag

Homadis Trading Vahab Company

Supplier From Doha, Qatar

Supplier Of Slag

Various types of steel slag analysis are available in the amount of 15 million tons.
Ready to ship to all ports around the world

Send a message to request

We are Homadis Tejarat Vahab Company

Feb-09-23

Maxtech International Trading

(1.0)

Supplier From Doha, Qatar

Micro silica (silica fume), silica, fly ash, pozzolano, ggbfs and white cement, other cementatious materials and factory/plants specialized spare parts & equipments, automation & switchgear, drives & transmission spares, instrumentation & pump, pneumatic & hydraulic spares, valves & actuators, mechanical parts, high carbon ferro chrome, foundry pig iron, iron ore concentrate, chromite ore, antimony ore, silicon metal 441 (powder), ferro silicon (fesi), iron ore pellet, copper concentrate.