Study on Expansion Properties Experimental of the Different Stratification Slates in Chongqing

Yun Jie Zhang; Cheng Fan

doi:10.4028/www.scientific.net/AMR.919-921.769

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 919-921Study on Expansion Properties Experimental of the...

Study on Expansion Properties Experimental of the Different Stratification Slates in Chongqing

Abstract:

In order to study the expansion properties of slates, this paper tests multiple groups of data, including free expansion ratio, expansion force and expansion strain for the different stratification slates in Chongqing. We found that with the increase of time, the axial expansion ratio and swelling pressure of different stratification slates begin to increase rapidly in the initial period,until gradually moving to a maximum value.In addition, slates stratification in different directions has different expansion properties, the perpendicular to stratification direction has greater expansion ratio, is about 2.5 times more than the expansion ratio of parallel to the bedding. In the constrained conditions, axial expansion ratio of the slates is much larger than that without constraints. Different stratification of expansion pressure and the expansion strain of the slates is linear in the volume remains unchanged. This research project has certain reference value for the civil engineering on the different stratification slates expansion construction in Chongqing.

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Periodical:

Advanced Materials Research (Volumes 919-921)

Pages:

769-772

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.919-921.769

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Online since:

April 2014

Authors:

Yun Jie Zhang, Cheng Fan*

Keywords:

Expansion Properties, Free Expansion Ratio, Slates, Stratification

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