LI Donghui, WANG Ying, ZHENG Wenzhong. Mechanical properties of alkali-activated slag ceramsite concrete block after exposure to high temperature[J]. 2019, 51(6): 46-50.
LI Donghui, WANG Ying, ZHENG Wenzhong. Mechanical properties of alkali-activated slag ceramsite concrete block after exposure to high temperature[J]. 2019, 51(6): 46-50.DOI: 10.11918/j.issn.0367-6234.201808142.
To investigate the mechanical properties of alkali-activated slag ceramsite concrete blocks after exposure to high temperature
compression tests were conducted on 48 alkali-activated slag ceramsite concrete blocks with two strength grades
MU10 and MU20
and all the specimens were exposed to normal temperature and a temperature history of 400 ℃
600 ℃
700 ℃
800 ℃
900 ℃
1 000 ℃
and 1 100 ℃. The results show that the compressive strengths of MU10 and MU20 ceramsite concrete blocks exhibited a linear decrease with the increase of the heating temperature from 20 ℃ to 1 100 ℃. Based on the test results
the formulas were constructed to calculate the compressive strengths of the alkali-activated slag ceramsite concrete blocks after exposure to high temperature in term of the heating temperatures.