Akademik Veri Yönetim Sistemi
11th International Congresses on Life, Engineering and Applied Sciences in a Changing World, 25 - 26 Kasım 2023, cilt.1, ss.54-62
Various factors affect the strength and durability of reinforced
concrete (RC) structures. These effects may develop simultaneously in more than
one way at the same time. In this study, the effects of inhibitors used to prevent
corrosion on mortar structures under the freeze-thaw effect were investigated.
The aim is to examine only the mortar structure without reinforcement.
Inorganic (calcium nitrite), organic (amino alcohol), and green (boron)
corrosion inhibitors were used. In addition, OPC (CEM I 42.5R) and 0-4 mm limestone
crushed sand from Eskişehir region were used in the mixture. During the
production phase, w/c (0.50) ratio was applied and inhibitors were used at 1%
and 2% of the cement dosage. Comparison was made with control sample without inhibitors.
The prepared 70x70x70 mm mortar samples were subjected to repeated F-T after 28
days of standard curing. The samples are kept at +20 ˚C for 2 hours and then
kept at -20 ˚C for 2 hours and 1 cycle is performed. The results were obtained
for 25, 50, 75, and 100 freeze-thaw cycles. The unit volume weight, ultrasound
pulse velocity (UPV), and compressive strength tests were performed on the samples.
As the number of cycles increased, strength and physical losses were determined
for the samples exposed to F-T. The test results were analyzed separately for
each inhibitor, and a comparison was made with the control sample. Based on
this evaluation, it was determined that the optimal inhibitor dosage was 1% as
a result of the F-T (100) cycle for the three corrosion inhibitors.