Rust, FCHugo, F2007-11-302007-11-301990Rust, FC and Hugo, F. 1990. Towards performance-related design criteria and specifications for modified binders. Journal of the Association of Asphalt Paving Technologists, Vol. 59, pp 54-690270-2932http://hdl.handle.net/10204/1721The reflection of primary cracks through overlays and seals on roads is recognised as a serious problem. The ingress of rain-water through these cracks can cause pumping which leads to forms of distress such as potholing and/or deformation. This can, in turn, lead to the premature failure of an otherwise sound pavement. Asphalt overlays and bituminous seals are often used to rehabilitate both flexible and rigid pavements. However, the reflection of cracks through these treatments will cause a recurrence of the same problems, thus invalidating the expenditure involved. Special or innovative materials such as bitumen-rubber, geofabrics and low-viscosity asphalt have been used in attempts to solve this problem with varying degrees of success. There is currently a lack of performance-related design criteria and specifications for the use of bitumen-rubbers and especially homogeneous modified binders. This is true for surface treatments as well s premix.enMeasurement of crack movementFatigue testingCrack-activity meterBitumen-rubberArticleRust, F., & Hugo, F. (1990). Towards performance-related design criteria and specifications for modified binders. http://hdl.handle.net/10204/1721Rust, FC, and F Hugo "Towards performance-related design criteria and specifications for modified binders." (1990) http://hdl.handle.net/10204/1721Rust F, Hugo F. Towards performance-related design criteria and specifications for modified binders. 1990; http://hdl.handle.net/10204/1721.TY - Article AU - Rust, FC AU - Hugo, F AB - The reflection of primary cracks through overlays and seals on roads is recognised as a serious problem. The ingress of rain-water through these cracks can cause pumping which leads to forms of distress such as potholing and/or deformation. This can, in turn, lead to the premature failure of an otherwise sound pavement. Asphalt overlays and bituminous seals are often used to rehabilitate both flexible and rigid pavements. However, the reflection of cracks through these treatments will cause a recurrence of the same problems, thus invalidating the expenditure involved. Special or innovative materials such as bitumen-rubber, geofabrics and low-viscosity asphalt have been used in attempts to solve this problem with varying degrees of success. There is currently a lack of performance-related design criteria and specifications for the use of bitumen-rubbers and especially homogeneous modified binders. This is true for surface treatments as well s premix. DA - 1990 DB - ResearchSpace DP - CSIR KW - Measurement of crack movement KW - Fatigue testing KW - Crack-activity meter KW - Bitumen-rubber LK - https://researchspace.csir.co.za PY - 1990 SM - 0270-2932 T1 - Towards performance-related design criteria and specifications for modified binders TI - Towards performance-related design criteria and specifications for modified binders UR - http://hdl.handle.net/10204/1721 ER -