Durability and rheological characteristics of high-volume ground-granulated blast-furnace slag concrete containing CaCO3/anhydrate-based alkali activator

2019 ◽  
Vol 204 ◽  
pp. 10-19 ◽  
Author(s):  
Dongjin Kim ◽  
Cheol-Young Kim ◽  
Girum Urgessa ◽  
Jun Hyeok Choi ◽  
Cheolwoo Park ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
High Volume ◽  
Rheological Characteristics ◽  
Alkali Activator ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

scholarly journals Blended Cement Containing High Volume Ground Dune Sand and Ground Granulated Blast Furnace Slag for Autoclave Concrete Industry

2015 ◽  
Vol 754-755 ◽  
pp. 395-399 ◽  
Author(s):  
Omer Abdalla Alawad ◽  
Abdulrahman Alhoziamy ◽  
Mohd Saleh Jaafar ◽  
Farah Noor Abdul Aziz ◽  
Abdulaziz Al-Negheimish
Keyword(s):  
Compressive Strength ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Blended Cement ◽  
High Volume ◽  
Dune Sand ◽  
Significant Drop ◽  
Cement Replacement ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

This paper presents the results of using ground dune sand (GDS) and ground granulated blast furnace slag (slag) as high volume cement replacement materials. In this study, plain and four blended mixtures were fabricated and cured under normal and autoclave conditions. For the blended mixtures, 40% GDS by weight of the total binder materials and different percentages of slag (15%, 30% and 45%) were incorporated as partial cement replacement materials. The effect of curing conditions (normal and autoclave) on the compressive strength of prepared mixtures was studied. The results showed that, for the autoclave cured mixture, up to 85% of cement can be replaced by GDS and slag without significant drop in the compressive strength. Microstructure analyses using scanning electron microscope (SEM) and X-ray diffraction analysis (XRD) were carried out to examine the microscale changes of the hydrated mixtures. The SEM revealed the formation of thin plate-like calcium silicate hydrate and compacted microstructure of autoclave cured mixture. XRD showed the elimination of calcium hydroxide and existence of residual crystalline silica of all blended mixtures.

scholarly journals Hydration-drying interactions in a high-volume ground granulated blast-furnace slag mortar

2021 ◽  
Vol 279 ◽  
pp. 122427
Author(s):  
Akli Younsi ◽  
Rachid Cherif ◽  
Abdelkrim Trabelsi ◽  
Ameur El Amine Hamami ◽  
Rafik Belarbi ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
High Volume ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag
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