Microstructural Evaluation of Cement Mortars with Blast Furnace Slag Exposed to Sulfate Attack
Journal Title: International Scientific and Vocational Studies Journal - Year 2018, Vol 2, Issue 1
Abstract
Sulfate is a major chemical threat to concrete and reinforced concrete structures. In this study, a micro-structural analysis of the effects of sulfate on cement mortars with blast furnace slag substitution was conducted. To observe the effect of blast furnace slag on cement mortar, blast furnace slag substitution was made instead of CEM I 42.5 R cement at different ratios. Mechanical properties, length change and micro-structures of samples cured in potable water and 10% Na2SO4 solution for 7, 28, 90 days were analyzed. When the results of compressive strength and length change were examined, it was seen that compressive strengths and length change values increased in time. The length change values were found to be higher in the sulfate environment. The blast furnace slag in the sulfate environment has reduced the percentage of length change. A comparative chemical analysis of the samples, C-S-H (Calcium Silicate Hydrate), CH (Calcium Hydroxide) and Ettringite developments were presented in terms of micro-structural properties. As a result, it was observed that CH gels develop in 7 day samples, C-S-H gels in 28 day samples, and ettringite in samples cured in % 10 Na2SO4 solution for 90 days.
Authors and Affiliations
İlhami DEMİR, Selahattin GÜZELKÜÇÜK ,Özer SEVİM, Ahmet FİLAZİ, Çağrı Göktuğ ŞENGÜL
Keywords
Related Articles
- EP ID EP35720
- DOI -
- Views 412
- Downloads 0
Elastic Analysis of an Hollow Cylinder Made from Functionally Graded Material Exposed to Internal Pressure
This study relates to the determination of radial and tangential stresses and radial displacements in a hollow cylinder made of functional graded material (FGM) subject to internal pressure both analytically and using A...
Short-Term Load Forecasting Model Using Flower Pollination Algorithm
Electricity is natural but not a storable resource and has a vital role in modern life. Balancing between consumption and production of the electricity is highly important for power plants and production facilities. Res...
An Exploration of Student Misconceptions in Electrical and Electronics Engineering Department
In this study, the common misconceptions are identified and regarding solutions are offered for Electrical and Electronics Engineering students. From the standpoint of knowledge, most important substructure of education...
Optimization of Polyethylene Inserts Design Geometry of Total Knee Prosthesis
Knee prostheses are produced from biomaterials which are compatible with human body as a result of damage of cartilage tissue due to various health problems. These prostheses consist of polyethylene parts between the Tib...
Fabrication of Glazed Porcelain Using Glass Industry by Product Sodium Feldspar
Sodium feldspar (Na2O.Al2O3.6SiO2) (SF) is one of the most important melting materials used in glass fabrication due to its low iron ratios. On the other hand, SF mineral used by glass industry is subjected to classifica...