TY - GEN
T1 - The influence of variable gravity on the microstructural development of tricalcium silicate pastes
AU - Collins, Peter J.
AU - Grugel, Richard N.
AU - Radlińska, Aleksandra
N1 - Publisher Copyright:
© ASCE.
PY - 2021
Y1 - 2021
N2 - Building infrastructure outside the known environment on Earth poses challenges that must be dealt with in order to safely protect the habitants and equipment. One of the issues that must be dealt with on the Moon and Mars, for example, is the influence of reduced gravity. For the first time, work is presented that helps understand the influence of reduced gravity on the hydration of a tricalcium silicate (C3S) paste, an important component of cement. The C3S samples were mixed in the microgravity environment on the International Space Station (ISS) and placed within a centrifuge to simulate the gravity of the Moon, Mars, and a statistical point at 70% of Earth's gravity. In addition to the simulated gravity samples, identical samples were mixed in the microgravity environment on the ISS, as well as a control sample on Earth. Microstructural analysis shows that an increase in gravity level results in less trapped air, as well as smaller pore size distributions.
AB - Building infrastructure outside the known environment on Earth poses challenges that must be dealt with in order to safely protect the habitants and equipment. One of the issues that must be dealt with on the Moon and Mars, for example, is the influence of reduced gravity. For the first time, work is presented that helps understand the influence of reduced gravity on the hydration of a tricalcium silicate (C3S) paste, an important component of cement. The C3S samples were mixed in the microgravity environment on the International Space Station (ISS) and placed within a centrifuge to simulate the gravity of the Moon, Mars, and a statistical point at 70% of Earth's gravity. In addition to the simulated gravity samples, identical samples were mixed in the microgravity environment on the ISS, as well as a control sample on Earth. Microstructural analysis shows that an increase in gravity level results in less trapped air, as well as smaller pore size distributions.
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U2 - 10.1061/9780784483381.006
DO - 10.1061/9780784483381.006
M3 - Conference contribution
AN - SCOPUS:85104885135
T3 - Earth and Space 2021: Materials, Structures, Dynamics, and Control in Extreme Environments - Selected Papers from the 17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
SP - 59
EP - 66
BT - Earth and Space 2021
A2 - van Susante, Paul J.
A2 - Roberts, Alaina Dickason
PB - American Society of Civil Engineers (ASCE)
T2 - 17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments: Materials, Structures, Dynamics, and Control in Extreme Environments, Earth and Space 2021
Y2 - 19 April 2021 through 23 April 2021
ER -