Self-flowing refractory castable

Print
Self-flowing refractory castable, Good construction and quality performance.

Description

Self-flow castable uses special equipments produced materials including high-quality bauxite, corundum, silicon carbide and other artificial materials as the main componentl, compound with many admixtures and high-efficient water reducer,and fluidizing agent to improve its properties.
 
The main characters are as follows: it could be applied in narrow openings and places where vibration is not possible (it could be rammed by person), only rely on its own weight and push of the potential energy difference. It has good construction and quality performance, and is mainly used in circulating fluidized bed boiler furnace lining and other places in the furnace lining which are hard for construction.

 

Items

ZL-1

ZL-2

Chemical composition%

Al2o3

≥75

≥65

SiO2

≤20

≤30

Bulk density g/cm3

110°c×24h

≥2.6

≥2.4

1000°c×3h

≥2.55

≥2.35

Modulus of repture MPa

110°c×24h

≥7.0

≥5.0

1000°c×3h

>12

>9.0

Cold crushing strength MPa

110°c×24h

≥60

≥50

1000°c×3h

≥100

≥80

Linear change after burning %

1000°c×3h

±3.0

±3.0

Wear resistance(ASTMc-704)cm3

≤6

≤8

Heat conductivity coefficient W/ m.k

1.5

1.5

Thermal shock resistance(times)(1000°cwearing cooling)

≥25

≥25

Refractriness°c

≥1790

≥1770

Max working temperature°c

≥1550

≥1500

Self-flow value mm

≥200

≥200