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| Corrosion resistance of optical fiber light conductive concrete with different variety of cement |
| 1.School of Civil Engineering and Architecture, Nanchang University, Nanchang, Jiangxi 330031, China; 2.School of Civil
Engineering and Architecture, East China Jiaotong University, Nanchang, Jiangxi 330013, China |
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Abstract Optical fiber light conductive concrete (OFLCC) was prepared with ordinary portland cement (P?O) or rapid-hardening sulphur aluminate cement (R?SAC) as matrix. Anti-erosion property and microstructure of OFLCC were investigated by sulfate attack resistance and alkali solution corrosion resistance tests, XRD and ESEM. Compared with the strength of OFLCC with P?O curing in alkali solution, the strength of OFLCC with R?SAC is decreased more obviously. The appearance of yellowing phenomenon and the corrosion degree of OFLCC with R?SAC curing in alkali solution are the most obvious. The corrosion degree curing in alkali solution is greater than that curing in salt solution. After OFLCC curing in alkali solution, the interface bonding between optical fiber and cement matrix is not quite close together, and there appears obvious micro defects to decrease the mechanical properties of OFLCC. The hydration products of OFLCC are composed of group C-S-H gel, needle stick ettringite, columnar gypsum, six-party laminated hydroxyl calcium stone and spherical aluminium glue, and they are intertwined and combined densely.
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Received: 03 September 2013
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2014, Vol. 35 
