@Article{jrm.2020.010991,
AUTHOR = {Xibo Qi, Yijie Huang, Xiaowei Li, Zhenhua Hu, Jingwei Ying, Dayong Li},
TITLE = {Mechanical Properties of Sea Water Sea Sand Coral Concrete Modified with Different Cement and Fiber Types},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {8},
YEAR = {2020},
NUMBER = {8},
PAGES = {915--937},
URL = {http://www.techscience.com/jrm/v8n8/39496},
ISSN = {2164-6341},
ABSTRACT = {The mechanical properties of modified sea water sea sand coral concrete (SWSSCC) under axial compression were experimentally studied. Two different parameters were considered in this test: types of cement and fiber. An
experimental campaign was developed involving uniaxial compression tests and
the use of digital image correlation (DIC) method to analyze the strain distribution
and crack propagation of specimen. Test results indicated that the compressive
strength and elastic modulus of SWSSCC were improved by adding stainless steel
fibers (SSF), while polypropylene fibers (PF) enhanced the SWSSCC peak deformation. It was found that the elastic modulus and strength of SWSSCC using
ordinary Portland cement (OPC) were higher compared to specimen with low alkalinity sulphoaluminate cement (LAS). Typical strain distribution changed with the
variation of fiber types. The propagation and characteristics of cracks in SWSSCC
containing PF were similar to those of cracks in SWSSCC. However, the propagation of cracks and the development of plastic deformation in SWSSCC were effectively hindered by adopting SSF. Finally, an analytical stress-strain expression of
specimen considering the influences of fibers was established. The obtained results
would provide a basis for the application of SWSSCC.},
DOI = {10.32604/jrm.2020.010991}
}