What is it about?
Exposure to elevated temperatures significantly affects the performance of concrete structures, since concrete is not stable at high temperatures. We have shown that nanomodified concretes with ultrafine mineral additives characterize by high early, standard strength and exhibit enhanced thermal stability mechanical properties when exposed to temperatures in the range of 105 to 350 C.
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Why is it important?
Our rezults show that higher thermal resistsnce of nanomodified rapid hardening concretes with chemical admixture and ultrafine mineral additives provides by reduce water demand, optimization of system particle packing, increasing of density of cement matrix, stimulate nucleation processes in the intergranular space, acceleration of hydration process and pozzolanic reaction.
Perspectives
We hope that the article will be interesting to specialists in the construction, energy industry and a wide range of people
Uliana Marushchak
Lviv Polytechnic National University
Read the Original
This page is a summary of: Effects of elevated temperatures on the properties of nanomodified rapid hardening concretes, MATEC Web of Conferences, January 2017, EDP Sciences,
DOI: 10.1051/matecconf/201711601008.
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