Description
Semi-flexible pavement(SFP) is a kind of composite pavement that utilizes the porous pavement structure of the open-graded asphalt pavement which is subsequently grouted with an appropriate cementitious grouts．The main purpose of this study is to concentrate on five injection ways of rubber powder which is added to the semi-flexible pavement to enhance the low-temperature anti-cracking resistance. In this study five kinds of SFP were prepared
which were composed of two kinds of rubber-modified cement mortars and three kinds of open graded tire rubber-modified asphalt binder pavement. The blending and splitting tests were carried out to measure the low-temperature cracking resistance of SFP. Results showed that the low-temperature cracking resistance of SFP could be greatly improved by waste rubber powder, with the ways of injection differed, the effect varied. KEYWORDS: Semi-flexible
pavement (SFP), Open graded tire rubber-modified asphalt binder pavement (OGTRMABP), Rubber modified cement groups, Low-temperature anti-cracking resistance
