Fishstone's Featherlite Concrete Filler is a specially coated lightweight concrete aggregate for producing lightweight concrete.
5 cubic foot box (approx 32lbs)
Finally a lightweight concrete filler which works well and actually improves the Rheology of concrete. Featherlight is a puffed glass sphere with a proprietary coating to minimize water absorption and improve work-ability. Ideal for applications with high variations in thermal expansion like firepits and surrounds
Finally a lightweight concrete filler which works well and actually improves the Rheology of concrete. Featherlight is a puffed glass sphere with a proprietary coating to minimize water absorption and improve work-ability. Ideal for applications with high variations in thermal expansion like firepits and surrounds
- Weighs only 6.5lbs per Cubic foot (95% weight reduction compared to typical sand)
- Average particle size = 30-60 mesh
- Specific Gravity = 2.3
- Temperature rated to 1,600 Fahrenheit (Suitable for refractory applications)
- Minimizes or eliminates cracking caused from thermal expatiation and contraction like firepits and surrounds
- Acts as flow aid minimizing segregation of plasticized mixes
- Sold in UPSable 5 cubic Foot Box (approx 32lbs) Also available in bulk sizes please contact us for details.
Dosage and usage:
- General loading(By Volume): 1-100% replacement of sand/aggregate. (Typical dosage 20-30% replacement)
- Replace 20-30% of Aggregate for general lightweight concrete (reduces overall weight by 25%)
- Replace 100% to create a non load bearing fill (Ideal for filling hollow GFRC castings)
Sample starting formula (1 cubic foot):
- 58 lbs Cement
- 35 lbs Sand
- 1 lbs Featherlight Concrete Aggregate
- 3 lbs Super-Six-Admix
- 18.5 lbs Water
- 3 lbs AR Glass Fiber or .3lbs PVA Fiber
- Optimum 380 Premium Plasticizer as needed