Effects of admixtures on mortar shrinkage under different curing conditions

Birincioglu, Turan


Effects of pozzolan incorporation and curing conditions on strength and water resistance of natural gypsum pastes
Cengiz, Okan; Erdoğan, Turhan Y.; Department of Civil Engineering (2009)
There are large reserves of gypsum rock (CaSO4·2H2O) in Turkey and in various regions of the world. Heating gypsum rock to 140 - 190 0C causes it to lose three-fourths of its water molecules and turn into gypsum, called plaster of Paris; heat application over 190 0C results in loss of all the water molecules and this form of the material is called gypsum anhydrite. When gypsum is mixed with water, it gains cementitious property and hardens in a short time. Therefore, natural gypsum anhydrite and especially ...
Effects of homogenization techniques on encapsulation of wheat germ oil
Şahin, Serpil; Şümnü, Servet Gülüm (2015-09-02)
Effects of High Hydrostatic Pressure Treatment on Water Absorption Properties of Bovine and Fish Gelatin
Gültekin, Necmiye Büşra; Alpas, Hami; Öztop, Halil Mecit (null; 2017-06-28)
The objective of this study was to investigate the effect of High Hydrostatic Pressure (HHP) treatment on physical properties of bovine (220, 240 and 250 bloom) and fish (240 bloom) gelatins. HHP treatment parameters were chosen as 1,000; 3,000; 5,000 bar at 40°C for 5 min. To obtain information about water absorption and gelation behavior of the treated gelatins, Nuclear Magnetic Resonance (NMR) relaxometry experiments through transverse relaxation time (T2) measurements were conducted. The change...
Effects of Sorption Enhancement and Isobutene Formation on Etherification of Glycerol with tert-Butyl Alcohol in a Flow Reactor
Ozbay, Nalan; OKTAR, NURAY; DOĞU, GÜLŞEN; Doğu, Timur (2012-07-04)
In the presented work, liquid phase etherification reaction of glycerol (G) with tert-butyl alcohol (TBA) was investigated in a continuous flow reactor using Amberlyst-15 (A-15) as the catalyst. Some experiments were also repeated in a batch reactor at autogenous pressure. Effects of feed composition, reaction temperature (70-110 degrees C), and reaction pressure (1-5 bar) on the product distribution were investigated. When flow reactor pressure was reduced from S to 1 bar, enhanced glycerol conversion and ...
Effects of Zinc Borate on the Flame Retardancy Performance of Aluminum Diethylphosphinate in Polyamide-6 and its Composites
Polat, Özlem; Kaynak, Cevdet (Carl Hanser Verlag, 2019-03-01)
In this study, the flame retardancy contribution of zinc borate when used together with a traditional flame retardant (aluminum diethylphosphinate compound) was investigated for neat polyamide-6 and for 15 wt% short glass fiber reinforced composite. Melt mixing with twin-screw extrusion was the compounding method while injection and compression molding were the shaping methods of specimens. Three different flammability tests (limiting oxygen index, UL-94 vertical burning, mass loss calorimetry) indicated th...
Citation Formats
T. Birincioglu, “Effects of admixtures on mortar shrinkage under different curing conditions,” Middle East Technical University, 1996.