Thermal expansion behavior of igneous rocks

doi:10.1016/0148-9062(74)91111-5

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts

Volume 11, Issue 10, October 1974, Pages 403-411

International Journa...

https://doi.org/10.1016/0148-9062(74)91111-5 Get rights and content

Abstract

New experimental data on the thermal expansion of several igneous rocks over the range 25–550°C show that the observed thermal expansion is a function of crack porosity, heating rate, and previous maximum temperature as well as mineralogical composition and preferred crystal orientation. For heating rates if≤2°C/min and a maximum temperature ≤250°C; expansion curves are reproducible, may show a small hysteresis but no permanent strain, and the coefficient of thermal expansion (α) is approximately that calculated from the single crystal values of the constituent minerals. For highly cracked rocks α is significantly less than the calculated value. For heating rates >2°C/min or T > 35°C, new cracks and hence permanent strain are produced in the sample and α is systematically decreased. Recycling to the same temperature produces additional cracks until a steady state is reached after 2–5 cycles.

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Thermal expansion behavior of igneous rocks

Abstract

Tectonophysics

Experiments on the expansion and contraction of building stone

Am. J. Sci.

On the expansion of different kinds of stone from an increase of temperature with a description of the pyrometer used in making the experiments

Trans. Roy. Soc. Edinburgh

On the thermal expansion of rock at high temperatures

Trans. Roy. Soc. Canada

Thermal Expansion of Typical American Rocks

Iowa Eng. Exp. Sta. Bull.

The Properties of Silica

Amer. Chem. Soc. Monograph Series

Thermal and moisture expansion of some domestic granites. U.S. Nat. Bur. of Standards

RP

Effect of reduced pressure on thermal expansion behavior of rocks and its significance to thermal fragmentation

J. Appl. Phys.

Thermal expansion measurements of simulated lunar rocks

Thermal expansion of lunar rocks

Thermal expansion of Apollo lunar samples and Fairfax diabase

Unique characterization of lunar rocks by physical properties