| Brand Name: | Ningshu |
|---|---|
| Place of Origin: | China (Mainland) |
| Name: | Lightweight Expanded Clay Aggregate |
| Color: | expanded clay |
| Usage: | expanded clay for hydroponics |
| Size: | 2-4mm,4-8mm,8-10mm,8-16mm,10-30mm |
Quick Details
Specifications
Lightweight Expanded Clay Aggregate/LECA/Clay Pebbles
Leca consists of small, lightweight, bloated particles of burnt clay.The thousands of small, air-filled cavities give Leca its strength and thermal insulation properties.
The base material is plastic clay which is extensively pretreated and then heated and expanded in a rotary kiln. Finally, the product is burned at 1100 °C to form the finished Leca product.
Main size of expanded clay as follows:
grade1(2-4mm), grade2(4-8mm), grade3(8-16mm),grade4(8-10mm),grade5( 10-30mm)
Characteristic:Lightweight, insulating, strong,Extremely stable and durable,Non-combustible and fire-resistant.
Chemcial composition
|
Sizes |
SiO2 |
Al2O3 |
Fe2O3 |
CaO |
MgO |
LOSS |
water content |
|
2-4mm |
60.47 |
18.9 |
14.39 |
2.01 |
2.22 |
-0.41 |
2 |
|
3-9mm |
61.12 |
18.77 |
14.21 |
1.78 |
2.37 |
-0.4 |
0 |
|
8-10mm |
62.4 |
19.5 |
13.8 |
2.01 |
1.95 |
-0.38 |
0 |
|
9-16mm |
62.55 |
19.74 |
13.77 |
2.19 |
1.99 |
-0.38 |
0 |
|
10-30mm |
62.56 |
19.16 |
14.36 |
2.27 |
1.75 |
-0.25 |
1 |