Thermal and Hygric Properties of Alkali Activated Aluminosilicates

conference paper

English

Alkali activated aluminosilicates present a promising way for future advances in materials engineering towards environmental sustainability. In this paper, the mechanical, thermal and hygric properties of aluminosilicates designed using waste brick powder from insulation blocks are investigated. The applied waste material is alkali activated by the mixtures of sodium hydroxide and sodium silicate with the silicate modulus ranging from 0.8 to 1.4. The obtained results reveal a significant influence of increased silicate modulus on the properties of analyzed aluminosilicates. The more dense and compact material structure observed for higher silicate moduli leads to an improvement of mechanical properties of designed materials. The thermal and hygric properties are found to be influenced by the occurrence of cracks in the material structure. The experimental results indicate a good potential of alkali activated aluminosilicates for design of new building materials in tenns of sustainable development principles.

alkali activation; aluminosilicates; thennal conductivity; moisture transport; mechanical properties

VEJMELKOVA, E.; FOŘT, J.; JUNKOVÁ, A; ČECHOVÁ, M.; ROVNANÍKOVÁ, P.; ČERNÝ,R.

30. 11. 2018

AMER INST PHYSICS

MELVILLE

9780735417663

AIP Conference Proceedings

0094-243X

AIP conference proceedings

2040

United States of America

040002-1

040002-4

4