关键词: 道路工程;SRX稳定碎石;振动试验方法;力学性能

Abstract: In order to reveal the objective laws governing the strength properties of SRX stabilized crushed stone(SRX-SCS), a laboratory study was undertaken to research the influence of relative moisture content,SRX content, compactness and aggregate litho logical characters on mechanical properties of SRX-SCS by using vertical vibration compaction testing method, and the relationship between each strength is established.The results show that the compressive strength, splitting strength and resilient modulus of SRX-SCS increased with the decrease of relative moisture content, and they become the largest when the relative moisture content is zero; The mechanical properties increase as SRX content increase;Between 96% and 100%, the compactness promotes 1%, compressive strength of SRX-SCS increase 4%-8%, splitting strength increase 6%-10% and resilient modulus increase 7%-11%; The compressive strength of SRX limestone stabilized crushed stone is 1.27 times and 2.19 times respectively as SRX sandstone and SRX granite stabilized crushed stone, the splitting strength of SRX limestone stabilized crushed stone is 1.23 times and 2.03 times respectively as SRX sandstone and SRX granite stabilized crushed stone,the resilient modulus of SRX limestone stabilized crushed stone is 1.21 times and 2.20 times respectively as SRX sandstone and SRX granite stabilized crushed stone;The relationship between compressive strength(Rc)and splitting strength(Ri)satisfies the formulae of Rc=16.6Ri,the relationship between compressive strength(Rc)and resilient modulus(Ec)satisfies the formulae of Ec=118.4Rc.The results can be referred as the design and construction of SRX-SCS.

Key words: road engineering;SRX stabilized crushed stone;vertical vibration compaction testing method;mechanical property