Effect of hot water curing on the mechanical properties and durability of cement mortars incorporating silica fume

Download

index.pdf

Date

2020-01-01

Author

Ince, Ceren

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

150
views

70
downloads

It is known that curing temperature plays an important role on the fresh and hardened properties of cement-based materials. The increase in curing temperature at early period results in an accelerated hydration reaction that increases the rate of strength development of cement-based materials. However, the application of very high temperatures during curing negatively affects the strength and durability of the cement-based materials generally due to the expansion that takes place in the matrix. The main purpose of the study is to examine the effects of early period of hot water curing on the mechanical properties and durability of cement mortars incorporating silica fume. Particle size distribution, chemical composition and SEM analyses were performed for material characterization. Preliminary results suggest that the most favourable curing environment at early period for cement mortars incorporating silica fume is to cure under water at 50 degrees C and are in a good agreement with SEM. The results indicate that curing cement mortars incorporating silica fume under hot water in the early times plays an important role in the development of mechanical properties and durability. The results reported in this article provide a significant contribution for the determination of suitable curing conditions of cement-based materials incorporating pozzolans.

Subject Keywords

General Engineering, Architecture

URI

https://hdl.handle.net/11511/63337

Journal

JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY

DOI

https://doi.org/10.17341/gazimmfd.442764

Collections

Engineering, Article

Suggestions

OpenMETU
Core

Effect of heat treatment on grindabilities of celestite and gypsum and separation of heated mixture by differential grinding Sener, S; Bilgen, S; Ozbayoglu, G (Elsevier BV, 2004-03-01) This study was conducted to determine thermal decomposition of gypsum (CaSO4 . 2H(2)O) and celestite (SrSO4), to examine the effect of heating on grindability and the possibility of celestite-gypsum separation by differential grinding after heating. The results indicated that no significant decomposition reaction was observed in celestite up to 900 degreesC whereas the decomposition of gypsum occurred within 100-450 degreesC.
Effect of heating rate on thermal properties and kinetics of raw and cleaned coal samples Özbas, Kazim Esber; Hicyilmaz, Cahit; Kök, Mustafa Verşan (Informa UK Limited, 2003-01-01) In this article, thermogravimetry (TG/DTG) was used to determine the effect of heating rate on the thermal properties and kinetics of raw and cleaned coal samples from Soma, Tuncbilek, and Afsin Elbistan regions. TG/DTG experiments were carried out at 4 different heating rates (5, 10, 15, and 20degreesC/min). Generally, for all of the samples higher peak and burnout temperatures were measured with an increasing heating rate. Kinetic parameters of the samples were determined using an Arrhenius-type kinetic m...
A Pulse Voltage Application in Electrochemical Reduction of Solid CaWO4 Powder Goksu, Orhan Gokce; ERDOĞAN, METEHAN; Karakaya, İshak (The Electrochemical Society, 2016-09-01) Scheelite is the most abundant mineral of tungsten, but wolframite is used more than scheelite due to easier dissolution in alkaline solutions used in present processing methods. An alternative method based on electrochemical reduction of CaWO4 by direct current applications in molten salt solutions was recently reported. Pulse voltage and constant voltage reduction mechanisms were compared and an optimization of reduction kinetics was achieved in this study. The results have shown that faster reduction rat...
Effect of High-Density Nanoparticles on Recrystallization and Texture Evolution in Ferritic Alloys Aydoğan Güngör, Eda; Carvajal-Nunez, Ursula; Vogel, Sven C.; Li, Meimei; Maloy, Stuart A. (MDPI AG, 2019-03-01) Ferritic alloys are important for nuclear reactor applications due to their microstructural stability, corrosion resistance, and favorable mechanical properties. Nanostructured ferritic alloys having a high density of Y-Ti-O rich nano-oxides (NOs < 5 nm) are found to be extremely stable at high temperatures up to similar to 1100 degrees C. This study serves to understand the effect of a high density of nano-particles on texture evolution and recrystallization mechanisms in ferritic alloys of 14YWT (14Cr-3W-...
Effect of envelope insulation on building heating energy requirement, cost and carbon footprint from a life-cycle perspective Altun, Murat; Akgül, Çağla (Journal of the Faculty of Engineering and Architecture of Gazi University, 2020-01-01) Space heating is the dominant item of energy consumption of buildings in Turkey. Effective building envelope insulation, especially in early design phase, is the most common passive solution that significantly reduces the annual heating energy requirement of the building. This work aims to assess the effectiveness of additional envelope insulation investments at the early design phase of buildings for all cities in Turkey. The study utilizes the current (2008) and draft 2013 versions of the TS 825 standard ...

Citation Formats

C. Ince, “Effect of hot water curing on the mechanical properties and durability of cement mortars incorporating silica fume,” JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, pp. 109–126, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63337.