expanded vermiculite for agriculture

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Tianjin
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TT OR LC
Min Order Qty:
1000 m.t.
Supply Capability:
200000 m.t./month

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Packaging & Delivery

Packaging Detail:50L or 100L per bag
Delivery Detail:within 7 days after receiving your deposit

Specifications

1.Color:golden,silver vermiculite 
2.Size:2-4mm 3-6mm6-12mm 
3.kind:expanded 
4.We have manufacture experience over 10 years

vermiculite

 

1.In color,vermiculite can be indevided into silver vermicultie and golden vermiculite 

2.Type:raw vermiculite ,partially expanded vermiculite ,expanded vermiculite ,

3.Size:20-40mesh 40-60mesh 150mesh 200mesh 325mesh 400mesh 0-30um 0.3-0.65mm0.65-1mm0.3-1mm1-2mm, 2- 4mm3-6mm4-8mm

4.Expansion ratios:5.5-10times 

5.Bulk density after expansion :90-270kgs/m3 

6.Sample is free within 1kgs 

7.Vermiculite quality certificate:MSDS ,SGS ,non-asbestos testing report ,chemicals testing report 

 

product information :

 

Vermiculite, chemical formula M g × (H2O) [Mg3 × (AlSiO3O10) (H2O)], is a magnesium water inclouded aluminum silicate 

secondary metamorphic minerals of layered structure. It likes mica in form, and usually come from weathered or hydrothermal 

alterated black (gold ) Mica. It will present a deflection shape after heat expansion and water loss, liking a leech pattern in form ,

 so it gets the name vermiculite .

 

Vermiculite features 

 

Raw vermiculite will be expanded to many times when heated at 850-1100 °C, 

 

poisonless, odorless , corrosion-resistant, Non-combustible , natural refractory properties , Good thermal insulation , low density , Heat-resistant ,sound-proofing .fire-proofing etc .

 

 

Vermiculite chemical :

 

Item

SiO2

MgO

Fe2O3

Al2O3

CaO

K2O

H2O

PH

Content %

37-42

11-23

3.5-18

9-17

1-2

5-8

5-11

7-11

 

 

Main Property of Expanded Vermiculite

 

Bulk Density

(kg/m³)

Thermal Conductivity

(W/{M·K})

Fire-Proof

(°C)

Temperature in Use

(°C)

Water Absorption

(%)

Anti-freezing

 

Sound Absorption

 

Corrosion Resisting

 

60-200

0.047-0.081

1300-1350

900-1000

26.5-40.6

The parcicle size has no change,when it is freezed 15 times under -20°C.

0.53-0.63

Alkali-resisting

 

Applications

Raw vermiculite is widely used for Foundary Insulation and Steel Industry

Expanded vermiculite is used in various industries as a packing material due to its highly absorbent nature. It is also a lightweight 

aggregator for plaster, proprietary concrete, compounds, fire stop mortar and cementious spray fireproofing. It can also be used as

 loose fill insulation and can be molded into shapes, bonded with cement and other bonding materials for insulation, refractory 

insulation, fireproofing of structural steel and pipes industries. Exfoliated vermiculite is also widely used as a component of the

 interior fill for fire stop pillows, and is also used in commercial hand warmers. 

 

Vermiculite is used for Horticulture :lawn of golf,seed preservation agent,soil conditioner ,wetting agent,plant growth 

substance,feed additive ,any other applications 

 

Goods pictures and factory pictures :

 


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Q:What does cement or vermiculite mortar refer to?
The cast-in-place cement vermiculite thermal insulation layer is made of expanded vermiculite as aggregate, cement as cementing material, mixing in a certain proportion and mixing with water and sand. Has the characteristics of light weight, small thermal conductivity, high strength, easy expansion of fission, delamination, economic quantity etc.. When applied to the flat surface, it can reduce the load of the surface layer, save the water consumption, reduce the cost and shorten the construction period. The utility model can be used as a heat insulating layer for cast-in-place or heat insulation layer or the like.
Q:Can vermiculite be used for making flowers?
Vermiculite is a natural, non-toxic mineral that expands at high temperatures. It is a relatively rare mineral, belonging to silicates. Its crystalline structure is monoclinic, and it looks like mica from its appearance. Vermiculite is produced by hydration of certain granite. It is commonly produced with asbestos.
Q:How do you grow your vermiculite? Do you place it at the top or bottom of the soil, or mixing?
Vermiculite is a mineral used in peat soil to regulate soil pH and enhance drainage. It should be used in combination with other materials.
Q:Can plant nursery substrates be made with plant ash and perlite and vermiculite? Seek expert advice
See if it can be used, depending on the pH of the seedlings. But later add nutrients to acidic for more, add will neutralize part of the alkaline. The actual pH value can be measured with a test paper after adding nutrients. Neutral base material is suitable. If you can according to their suitability for the best seedling is that partial acid or alkali are not too easy to range between 8-5
Q:What is the bulk density of asphalt vermiculite? Is it better to use asphalt, vermiculite or cement vermiculite when roofing?
Vermiculite is a kind of thermal insulation material, even if you do not do roofing waterproof, that after finishing the vermiculite ramming, also must use the cement mortar to make the 2~3CM protection layer. Finished cement mortar protection layer after drying, and then laying asphalt or SBS waterproof coiled material and other waterproof material. Need to say is that asphalt is a waterproof material, cement is a protective layer of thermal insulation material, but also waterproof material of the adhesion layer, and vermiculite is thermal insulation material! Can not be said to be good asphalt, vermiculite, or cement, vermiculite, good drops are a kind of Dongdong Oh!
Q:What kind of flowers is vermiculite suitable for planting?
No, vermiculite is a kind of water retaining matrix. If you use only vermiculite, it will be very wet. It is recommended to mix the rotten leaves with soil: vermiculite: Pearl salt, =2:1:1
Q:Is it OK to mix vermiculite and perlite in the vegetables grown in the soil?
Yes, rattan month and pot wood rose can be cut. Generally speaking, according to cuttings, there are two ways to choose: one, hardwood cuttings, also known as dormant branches inserted. Field cultivation of rose leaves in autumn, until the germination of the spring, the use of 1 years of cutting branches. Winter branches are usually pruned, with no pests, woody shoots, and plump shoots for cuttings. Cuttings 10~12 cm long, with 3~4 buds. In the dry, place for shelter Xiangyang high bed for slotting machine, land leveling after mulching, and then cutting, in order to improve the soil temperature, promoting rooting. The cuttings into the soil 1/2~2/3, keep the 1 buds exposed soil surface, inserting length of 8~10 cm, per square meter 100~140 strain. Plug in the Yangtze River Basin, probably in late February roots, March shoot new shoots. It can be transplanted in 5~6 month. Hardwood cuttings such as in October, before winter roots, germination in spring, good seedling quality.
Q:There is vermiculite in the soil. Can you eat the vegetables grown?
There is vermiculite in the soil, and the vegetables can be eaten. Vermiculite is a natural, inorganic, non-toxic mineral that expands at high temperatures.
Q:How does the pH value of vermiculite adjust?
The chemical properties of expanded vermiculite are stable. Insoluble in water,.PH value 7~8.1, with acid soil (humus) improvement, variable acidity2, with a small amount of slaked lime, variable acidity
Q:What is the thermal conductivity of vermiculite and vermiculite?
Cement and expanded vermiculite, cement should be no less than 325, usually choose 425 ordinary Portland cement. The volume ratio of cement and expanded vermiculite is generally 1:5, which is economical and reasonable. Cement and sand aspect than the general 1:1. Site inspection method: mix the cement paste with fine powder and knead it by hand.

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