Akademik Veri Yönetim Sistemi
3. International Conference on Civil and Environmental Engineering, (ICOCEE – Çeşme 2018), İzmir, Türkiye, 24 - 27 Nisan 2018, cilt.2, ss.35-47
Mortar mixtures achieved by using
standard sand, sodium hydroxide (NaOH) and sodium silicate (Na2SiO3)
activators, CEM I 42.5R cement, water, waste material which revealed during the
sugar production process. Mortar mixtures; the sand/binder ratio by weight was
3.0, the water/binder ratio was 0.51 and the sodium silicate/sodium hydroxide
ratio was 2.5, and the obtaining samples subjected to two different types of
curing. In the experimentalphase, the amount of sodium hydroxide solution included
in the mortar mixture was 14M, depending on the sodium silicate/sodium
hydroxide ratio given, according to given amount of sodium hydroxide solution;
sodium silicate solution added to the mortar mixtures. The samples obtained are
cured to the temperature 750C without being removed from the mold for 7 days
with mortar molds and crushed without waiting for cooling. Equivalent samples
were cured in 7 days at 750C, then removed from the mold and cured in the
laboratory (23 ± 20C and 50% ± 5%) in the air to complete 28 days then
subjected to tests. Another equivalent sample group cured in the air only for 7
days and 28 days in the laboratory (23 ± 20C and 50% ± 5% humidity) then
subjected to tests. Thus, hardened mortar compressive strength behaviors
examined by two different curing regime; mortars contained sodium hydroxide,
sodium silicate, portland cement and waste material that is revealed during the
sugar production process. As a result, the highest compressive strength,
containing 14M alkali activator including 28 days samples; it was determined that
the sample had a temperature of 750C for 7 days and contained 60% PFA, 40% PC
(38.2 MPa).