Utilization of Local Waste Materials in High-Performance and Self-Compacting Concrete

2020 ◽  
Vol 990 ◽  
pp. 18-28
Author(s):  
Sayed Mohamad Soleimani ◽  
Abdel Rahman Alaqqad ◽  
Tahir Afrasiab ◽  
Adel Jumaah ◽  
Ali Behbehani ◽  
...  
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Raw Materials ◽  
Steel Slag ◽  
Electric Arc ◽  
Waste Materials ◽  
Self Compacting Concrete ◽  
Arc Furnaces ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

The objective of this study is to investigate the effects of using local waste materials on the properties of fresh and hardened high performance and self-compacting concrete. Crushed ceramic products and steel slag from electric-arc furnaces were used as partial replacements of traditional concrete raw materials in the production of self-compacting and high performance concrete, which were obtained from local factories in Kuwait. Preliminary results have shown that using crushed ceramic products (in the form of powder and 3/8” aggregates) increases the rate of strength gain as the concrete cures, while using electric-arc furnace slag increases the compressive strength of the benchmark concrete mix by up to 40%.

scholarly journals Examining the Effects of Introducing and Combining Electric-Arc Furnace Slag and Ceramic Waste in a Single Self-Consolidating, High-Strength Concrete Mix

2020 ◽  
Vol 10 (14) ◽  
pp. 4844 ◽  
Author(s):  
Sayed Mohamad Soleimani ◽  
Abdel Rahman Alaqqad ◽  
Adel Jumaah ◽  
Abdulaziz Majeed
Keyword(s):  
Compressive Strength ◽  
High Performance Concrete ◽  
Ceramic Powder ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Waste Materials ◽  
Arc Furnace ◽  
Concrete Mix ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

The purpose of this paper is to examine the effects of introducing waste materials sourced from factories in Kuwait as partial replacements of conventional concrete materials. Rejected ceramic products and unused electric-arc furnace slag were treated and partially replaced portions of coarse and fine aggregates, and the possibility of partially replacing cement was also examined. Initial results showed that all aggregate sizes can be replaced with either of the waste materials without compromising the concrete’s rheological properties or compressive strength. Additionally, pulverized ceramic powder was shown to improve the compressive strength of mortar cube samples. Finally, the two waste materials were combined in hybrid mixes that aimed to have the highest utilization of waste materials while maintaining (if not improving) the properties of a previously established benchmark self-consolidating concrete (SCC) mix. The results of this study show that waste materials sourced from landfills in Kuwait can be repurposed to replace portions of conventional construction materials in a self-consolidating, high-performance concrete mix with significantly better mechanical properties and higher compressive strength than that shown by a benchmark mix.

High performance concrete with electric arc furnace slag as aggregate: Mechanical and durability properties

2015 ◽  
Vol 101 ◽  
pp. 113-121 ◽  
Author(s):  
Flora Faleschini ◽  
M. Alejandro Fernández-Ruíz ◽  
Mariano Angelo Zanini ◽  
Katya Brunelli ◽  
Carlo Pellegrino ◽  
...  
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Durability Properties ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

Influence of Artificial Aggregates on the ITZ's Microstructure of Recycling Concrete

2013 ◽  
Vol 743-744 ◽  
pp. 180-185
Author(s):  
Jun Hua Zhang ◽  
Zong Hui Zhou ◽  
De Cheng Zhang ◽  
Xin Cheng
Keyword(s):  
Fly Ash ◽  
Mineral Composition ◽  
High Performance ◽  
Raw Materials ◽  
Steel Slag ◽  
Interfacial Transition Zone ◽  
Hydration Products ◽  
Ordinary Concrete ◽  
Natural Aggregates ◽  
Furnace Slag

Artificial aggregates with high-performance were prepared by the methods including steel slag, furnace slag, fly ash and coal gangue, and the recycling concrete was prepared by artificial aggregates instead of natural aggregates. This kind of concrete abandoned was able to completely regenerate cement, which will make the reuse of concrete possible. The composition and characteristics of the artificial aggregates will produce a significant effect on the interfacial transition zone (ITZ) in recycling concrete. The morphological features and mineral composition of three artificial aggregates were analyzed by SEM and XRD, and the ITZ of three recycling concrete and one ordinary concrete was investigated by SEM and EDS. The results showed that compared with ordinary concrete, although the recycling concretes ITZ had a small amount of CH crystal, most of the space was filled with dense hydration products. The interface width was 40μm, which less than 50μm of ordinary concrete. Artificial aggregates with different ratio of raw materials had a great effect on recycling concretes ITZ. The ITZ of recycling concrete prepared with 30% steel slag, 50% furnace slag, 20% fly ash had the smallest Ca/Si and much more C-S-H. the structure of ITZ was much denser and the microstructure was relatively better.

Early Age Cracking Characteristic of Concrete with Compound Admixtures

2013 ◽  
Vol 325-326 ◽  
pp. 71-74
Author(s):  
Yun Feng Li ◽  
Dong Sheng Zhang ◽  
Li Xu
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Steel Slag ◽  
Test Method ◽  
Mineral Admixture ◽  
Early Age ◽  
Furnace Slag

The shrinkage cracking of concrete plays an important role to the accelerated deterioration and shortening the service life of concrete structures. The mineral admixture will be a perfect component of high performance concrete and its utilization will be a valuable resource for recycling. Early age cracking characteristics of concrete with compound admixtures, such as steel slag, blast furnace slag, fly ash, are studied in this paper using plate test method. The better anti-cracking performance of concrete will be realized when blast furnace slag replacing cement at 30%, steel slag and fly ash as the equal mixture components replacing cement at 30%, three kinds of admixtures replacing cement at 30% under the proper proportion.

scholarly journals Utilization of Giad Steel Slag as Partial Replacement for Coarse Aggregates in Concrete

2021 ◽  
Vol 9 (2) ◽  
pp. 53-57
Author(s):  
Osama Daoud ◽  
Muntasir Ibrahim
Keyword(s):  
Flexural Strength ◽  
Waste Product ◽  
Steel Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Partial Replacement ◽  
Arc Furnace ◽  
Coarse Aggregates ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

This research paper focuses on the possibility of utilization of Giad electric arc furnace slag (GEAFS) as a partial replacement for coarse aggregates in concrete, without compromising on its workability and strength. The electric arc furnace slag is a waste product from the steel manufacturing which may be used as partial replacement of coarse aggregates in concrete. This paper presents an experimental study on fresh and hardened properties of concrete containing steel slag aggregates. Slump, as well as strength properties of concrete prepared with natural coarse aggregate, partially replaced by the GEAFS in different proportions varying from 25 %, 50 % and 75 %. The GEAFS concrete shows marginal decrease in slump for the further replacement. Compressive, split and Flexural strength of the GEAFS concrete have been increased for the GEAFS addition. Highest compressive, tensile and flexural strength have been achieved by the mix containing 50 % GEAFS coarse aggregates. Using of steel slag will result in decrease of waste landfilling, and improving environmental condition.  

Effect of Feldspar Content on Electric Arc Furnace Slag (EAFS) Added Tiles

2014 ◽  
Vol 1024 ◽  
pp. 235-238 ◽  
Author(s):  
Mohamad Hasmaliza ◽  
Anasyida Abu Seman ◽  
Wei Long Gan
Keyword(s):  
Raw Materials ◽  
Strength Properties ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Ceramic Tiles ◽  
Ceramic Tile Production ◽  
Ball Clay ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

Electric arc furnace slag (EAFS) is a solid waste from steel making industrial. Previously, EAFS was deposited, recycled or used as fertilizer. In present study, EAFS is used as one of the raw materials in ceramic tile production. EAFS added tiles samples have been prepared by mixing of EAFS with ball clay, quartz and feldspar. The feldspar content was varied at various weight percentages (0, 10 and 20 %) to observe their effect on the produced samples. The raw materials mixture was pressed and then sintered at temperature range 1100°C-1175°C for 1 hour. In general, results shows that, sample with higher content of feldspar require shorter vitrification range and having relatively higher density and good strength properties. In addition, MOR value was increasing as the sintering temperature was increasing. However when the temperature reached 1175°C, the MOR was dropped which may be due to the early vitrification of the compositions, resulting in over firing, grain growth and recrystallization. Whereas the density values are relatively higher than the conventional vitreous ceramic tiles due to the presence of high amount of iron oxide from the EAFS.

Pilot-Scale Reconstruction of Steel Slag with Electric Arc Furnace Slag and Coal Cinder

2011 ◽  
Vol 287-290 ◽  
pp. 906-909 ◽  
Author(s):  
Zai Bo Li ◽  
San Yin Zhao ◽  
Xu Guang Zhao ◽  
Tu Sheng He
Keyword(s):  
Steel Slag ◽  
First Grade ◽  
Pilot Scale ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
National Standards ◽  
Reconstruction Technique ◽  
Arc Furnace ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

To realize the industrial application of online reconstruction technique of steel slag, a pilot-scale reconstruction research of steel slag (SS) with electric arc furnace slag (EAFS) and coal cinder (CC) and its mechanism were investigated. The results show that after reconstruction, the free-CaO content of reconstructed steel slag (RSS) is reduced. XRD analysis indicates that the reconstruction reaction can promote to create more active cementitious minerals (C2S, C3S, C6AF2 and C6A2F) in RSS. Composition adjusting materials formula composing of EAFS and CC at the ratio of 70:30 is optimum, which can meet the standard of the first grade steel slag powder according to Chinese National Standards GB/T 20491-2006.

scholarly journals Performing self-compacting concrete with electric arc-furnace slag as aggregates

2017 ◽  
Vol 120 ◽  
pp. 03003
Author(s):  
Amaia Santamaría ◽  
José Tomás San-José ◽  
Iñigo Vegas ◽  
Vanesa Ortega-López ◽  
Javier Jesús González
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Self Compacting Concrete ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag
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