The butyl rubber as the main part, adding a certain proportion polyisobutene, black and white carbon black, compound additive, vulcanizing agent, plasticizer, softener and other fillers makes GB flexible filler. Its main material is butyl rubber, and the finished production is similar to putty, so it is also named butyl rubber sealing putty or putty sealant.
GB flexible filler, which is designed specially for concrete panel, rockfill dam peripheral joint and expansion joint, is the new type of waterproof material. It is widely used in water conservation, electric power engineering, industry and civil construction works. And it has achieved good impermeable sealing effect in these projects.
GB flexible filler can be divided into two kinds according to appearance: stereotypes filler and non-stereotypes filler.
Features:
Package:
The stereotypes filler can be processed into various sizes as customers' requirements, and the non-stereotypes filler is 25kg/bag (carton).
Test items | Control index | GB flexible filler | Remark | ||
---|---|---|---|---|---|
Resistance to water and chemistry | water | ±3% | +1.5% | The weight change rate of GB flexible filler soaked in the three kinds of solutions for five months | |
Saturated calcium hydroxide solution | ±3% | +1.8% | |||
10% sodium hydroxide solution | ±3% | +1.2% | |||
Tensile properties | Room temperature | Tensile strength (MPa) ≥ | 0.06 | 0.09 | Tensile deformation CL-GB flexible filler |
Elongation (%) ≥ | 800 | 1196 | The bonding surface of concrete is not undrawn. | ||
-30°C | Tensile strength (MPa) ≥ | 0.7 | 0.95 | ||
Elongation (%) ≥ | 800 | 1078 | |||
Density (g/cm3) | 1.15 | 1.4 | |||
The surface of material and concrete immersed into water | The ratio of bonding strength value and the basic value after 3 months (%) ≥ | 95 | 98.8 | ||
Environmental protection | Belonging to rubber production | Non-toxic and non-pollution | |||
The cycle of freezing and thawing for 300 times | The ratio of bonding strength value and standard value (%) ≥ | 90 | 97.5 | Freeze and thaw quickly for 300 times from -21°C to +5°C. | |
The flowing performance | 75° dip angle (60°C, 48h) | Not flow | |||
Anti-permiability | Water pressure of 10kg/cm2 | Water impermeable for 72 hours |
Application:
Using method:
First, you should chisel V shape grooves of 8 cm depth on the top of various joints and cracks. Clear the stone, dust and loosening articles fully and filled the uneven departments with mortar and make it dry.
Rub the material into strips whose width is close to the joints width by hand before the construction. After filling the joints, cover the rubbed material on the filled joints and make the surface convex cylindrical (arc). And place the PVC protection plate on it.
The matters need to attention during using GB flexible filler: