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Effect of shale ceramsite type on the tensile creep of lightweight aggregate concrete
Highlights High water-absorption ceramsite LWC, low water-absorption ceramsite LWC, and normal-weight coarse aggregate NWC were researched. Tensile creep of these concretes was measured by using a newly developed shrinkage-restrained testing ring. Effect of shale ceramsite type on the tensile creep of lightweight aggregate concrete was investigated.
Abstract High water absorption ceramsite (YAS), low water absorption ceramsite (YCS), and normal-weight coarse aggregate (NCA) were used as coarse aggregates in concrete. YCS, YAS and NCA were respectively pre-soaked for 24h before their mixing into concrete. The net water/cement ratio of concrete with YCS, YAS and NCA was taken as 0.35. Mechanical properties and autogenous shrinkage of concrete made with the abovementioned coarse aggregates were determined. The tensile creep of these concrete was investigated by using a newly developed shrinkage-restrained testing ring. This study shows that the lightweight coarse aggregate concrete (LWAC) with YAS has the lower tensile creep than the LWAC with YCS, which has the similar tensile creep to the normal-weight coarse aggregate concrete (NC) with NCA.
Effect of shale ceramsite type on the tensile creep of lightweight aggregate concrete
Highlights High water-absorption ceramsite LWC, low water-absorption ceramsite LWC, and normal-weight coarse aggregate NWC were researched. Tensile creep of these concretes was measured by using a newly developed shrinkage-restrained testing ring. Effect of shale ceramsite type on the tensile creep of lightweight aggregate concrete was investigated.
Abstract High water absorption ceramsite (YAS), low water absorption ceramsite (YCS), and normal-weight coarse aggregate (NCA) were used as coarse aggregates in concrete. YCS, YAS and NCA were respectively pre-soaked for 24h before their mixing into concrete. The net water/cement ratio of concrete with YCS, YAS and NCA was taken as 0.35. Mechanical properties and autogenous shrinkage of concrete made with the abovementioned coarse aggregates were determined. The tensile creep of these concrete was investigated by using a newly developed shrinkage-restrained testing ring. This study shows that the lightweight coarse aggregate concrete (LWAC) with YAS has the lower tensile creep than the LWAC with YCS, which has the similar tensile creep to the normal-weight coarse aggregate concrete (NC) with NCA.
Effect of shale ceramsite type on the tensile creep of lightweight aggregate concrete
Zhuang, Yi-Zhou (author) / Chen, Cai-Yi (author) / Ji, Tao (author)
Construction and Building Materials ; 46 ; 13-18
2013-04-03
6 pages
Article (Journal)
Electronic Resource
English
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