Experimental Study on the Microstructure of Cementless Concrete through the SEM and XRD Analysis

Yong Il Jang; Jong Won Lee; Byung Jae Lee; Jun Yong Bae; Jeong Su Kim; Wan Shin Park

doi:10.4028/www.scientific.net/KEM.665.193

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 665Experimental Study on the Microstructure of...

Experimental Study on the Microstructure of Cementless Concrete through the SEM and XRD Analysis

Abstract:

This study examined the results of SEM and XRD analyses of cementless concrete mixed with chemical gypsum, a byproduct of oil refineries. The results suggest that cementless concrete at early age creates ettringite, calcium hydroxide, and C-S-H gel more slowly than does OPC concrete, but at the age of 28 days, it was found to have similar fine structures and densification level of structures. In addition, it was observed that ettringite and other crystalline structures were more actively produced at curing temperature of 40°C compared to 20°C.

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Periodical:

Key Engineering Materials (Volume 665)

Pages:

193-196

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.665.193

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Online since:

September 2015

Authors:

Yong Il Jang, Jong Won Lee, Byung Jae Lee, Jun Yong Bae, Jeong Su Kim, Wan Shin Park

Keywords:

Cementless Concrete, Industrial By-Products, SEM, XRD Analysis

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References

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