THE EFFECT OF THE AGGREGATE REPLACEMENT BY WASTE TYRE RUBBER CRUMBS ON THE MECHANICAL PROPERTIES OF CONCRETE

被引:0
|
作者
Toma, Ionut-Ovidiu [1 ]
Taranu, Nicolae [1 ]
Banu, Oana-Mihaela [1 ]
Budescu, Mihai [1 ]
Mihai, Petru [1 ]
Taran, Rares-George [1 ]
机构
[1] Univ Tehn Gheorghe Asachi Din Iasi, Iasi 700050, Romania
关键词
rubberized concrete; modulus of elasticity; compressive strength; complete stress-strain curve; STRENGTH;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The growing amount of waste rubber produced from used tires has resulted in an environmental problem needed to be addressed. The paper investigates the effect of fine aggregate replacement by waste tyre rubber crumbs on the mechanical properties of concrete at different curing ages. The aim is to assess the suitability of the newly obtained material to load bearing elements in civil engineering. The results presented in the paper are part of a larger research project related to the innovative use of all tyre components in concrete. The percentages considered were 40%, 60% and 80% by volume of fine aggregate. The general trend is a decreasing one in terms of mechanical properties. Even in such cases, the obtained values are above the minimum requirements, prescribed by norms, in terms of strength for some structural elements. The complete stress-strain curves determined at the age of 28 days show a softer descending trend for rubberized concrete compared to the reference mix. The embedded strain energy is larger in the post-peak region.
引用
收藏
页码:394 / 401
页数:8
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