海水侵蚀后水泥砂浆的单轴动态力学性能研究

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Abstract Dynamic test on cement mortar specimen after corroded by sea water under uniaxial stress was carried out；and the effects of strain rate，the type and the concentration of erosive solution on the stress-strain curve，ultimate compressive strength，peak strain and elastic modulus of cement mortar were studied. The research results show that the ultimate compressive strength of cement mortar will increase with the increase of strain rate；and the strength of cement mortar with low strength is more sensitive to strain rate than cement mortar with high strength. The peak strain of cement mortar will also increase with the increase of strain rate；but the elastic modulus will increase firstly and then decrease later. The effects of strain rate on the stress-strain curve，ultimate compressive strength，peak strain and elastic modulus of cement mortar after corroded by sea water have much relation with the ratio of water to cement，the type of erosive solution，the concentration and the corrosion time.

Key words： rock mechanics cement mortarerosive solution strain rate mechanical properties

Received: 07 September 2012

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I12/2481

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