Cenospheres used in the field of construction for the manufacture
of ultra-light and aerated concrete
Cenospheres are hollow spherical powder ultra-light inorganic
non-metallic materials with a true density of 0.15-0.65g/cm3, a
particle size of 2-120μm, a wall thickness of 1-2μm, and
compressive strength. Between 3-125MPa, it has the characteristics
of light-weight, large volume, low thermal conductivity, high
compressive strength, and good fluidity. It is a product filler and
reducer for paints, rubbers, modified plastics, glass-reinforced
plastics, artificial stone, and atomic ash.
1.Chemical composition:| Item | SiO2 | Al2O3 | Fe2O3 | SO3 | CaO | MgO | K2O | N2O |
| Content | 56-62 | 30-38 | 2-4 | 0.1-0.2 | 0.2-0.4 | 0.8-1.2 | 0.5-1.1 | 0.3-0.9 |
2.Physical properties:| Iem | Test | Item | Test | |
| Shape | high fluidity | Particle size | 10-400 | |
| Color | Light gray white | Specific resistance | 1010-1013 | |
| True density | 0.5-0.8 | Mohs hardness | 6-7 | |
| Bulk density | 0.3-0.5 | PH | 6 | |
| Refractoriness | 1750°C | Melting point | ≥1400 | |
| Temperature coefficient | 0.000903-0.0015 | Thermal conductivity | 0.054-0.095 | |
| Compressive strength | ≥350 | Refractive index | 1.54 | |
| Burnout rate | 1.33 | Oil absorption rate | 0.68-0.69 | |
3.Characteristics :
(1). High refractoriness:
the main chemical composition of the floating beads is silicon and
aluminum oxide, wherein the silicon dioxide is about 50-65%, and
the aluminum oxide is about 25-35%. Because the melting point of
silica is as high as 1725 degrees Celsius, the melting point of
aluminum oxide is 2050 degrees Celsius, which are all high
refractory materials. Therefore, the floating beads have an
extremely high degree of refractoriness, generally reaching
1600-1700 degrees Celsius, making them excellent high-performance
refractories.
(2). Light-weight:
thermal insulation; floating beads wall is hollow, the cavity is
semi-vacuum, only a very small amount of gas (N2, H2, and CO2,
etc.), heat conduction is extremely slow. Therefore, the floating
beads are not only lightweight (weight: 250-450 kg / m3), but also
excellent thermal insulation (thermal conductivity normal
temperature 0.08-0.1), which laid the foundation for its role in
the field of lightweight insulation materials.
(3). High hardness, high strength:
because the floating beads are made of silicon-aluminum oxide
mineral phase (quartz and mullite) hard glass body, the hardness
can reach Mohs 6-7, static pressure strength is as high as
70-140MPa, true The density is 2.10-2.20 g/cm3, so the floating
beads have high strength.
(4).the insulation is not conductive:
generally, the resistance of the insulator decreases with the
increase of temperature, the floating beads are opposite, the
resistance increases with the increase of temperature. This
advantage is not available in other insulating materials.
Therefore, it can be made into an insulating material with
excellent performance.
(5). fine particle size, large specific surface area;
floating beads naturally formed particle size of 1-250 microns. The
specific surface area is 300-360g/cm2, which is similar to cement.
Therefore, the floating beads do not need to be ground and can be
used directly. Fineness can meet the needs of various products.
4. Usage :
The Large ambit of Cenospheres is being commercialized by us
in the national as well as international markets. They are
manufactured from high grade quality alumina and silica and
contains air or inert gases. These products are highly used in
building and construction industries as act as fillers in cement
for producing low-density concrete. They can be availed in varied
specifications in order to meet the various requirements of
clients. The Cenospheres are made by accurately following the rules
of quality laid at a global level. They are backed by cutting edge
technology due to which they improve the flow-ability of several
applications and ensure even distribution of the filler material.
5.Specifications:
40-60 mesh, 80-120 mesh, 150-200 mesh, 200 or more (PS) and other
products.
6.Our service:
(1)Free Samples
--Free samples within 1-2KGs, but the delivery fee should be paid
by your side.
(2)All-over Certifications
--We can supply MSDS, TDS, Test Report, Place of Original (Form A,
Form E,etc.), SGS test, etc. certifications.
(3) Strictly Quality Control
--Our strictly Quality Control Dept will inspect each batch of
goods before loading, only after the goods qualified, it can be
allowed to out of the factory.
(4)Professional Document Service
--After shipped, our professional document department will serve
you all the documents for you timely.
7.Contact
Hebei Gator Chemicals Tech
Reg. Off: Qiaoxi District, Shijiazhuang city, Hebei province
Contact: Jerry Joung
Twitter:jerryyoung2014
