Available in 6, 8, 10 & 12 inch
Reliable Void Forms, LLC. patented Molded Pulp Voids are used between the ground and structural concrete structures to provide a void for the expansive soil to swell into. With only 18% contact area with the ground the RVF allows the soil to expand into the open space as shown in tests done at UTSA. The RVF molded pulp void will also deteriorate over time underneath the concrete.
The unique shape and composition of the RVF gives greater strength and moisture resistance while placing the concrete over the system which consists of 1/8” hard cover and vapor barrier purchased separately. Can be placed in damp conditions.
Composition and Materials
Test data from independent engineering firm and University of Texas San Antonio is available from manufacturer. Contact us for more information