صفحة رئيسية>Influence of large iron content in steel slag on cement

Influence of large iron content in steel slag on cement

Use of Iron and Steel Slags in Concrete: State of the Art

In the two last decades, world production of pig iron and steel has undergone a significant increase. In 2018, 1252.87 and 1806.46 million tons of pig iron and steel, respectively, were produced as compared to the 575.78 and 809.94 million tons of 2000. Consequently, the amount of the different types of slags deriving from these production processes has also increased get price

作者: Alan Piemonti, Antonio Conforti, Luca Cominoli, Sabrina Sorlini, Antonella Luciano, Giovanni Plizzar...

Influence of slag on leaching behavior of cement mortar

2017-1-15  In order to investigate the influence of slag on the leaching behavior of cement mortar lined in ductile iron pipe in a flowing solution, two types of ductile iron pipe specimens lined with ordinary- and 40% slag- cement mortar are firstly prepared, then, an accelerated leaching experiment on the prepared specimens is carried out by using a 6 M ammonium chloride get price

作者: Yu-Juan Tang, Xiao-Bao Zuo, Guang-Ji Yin, Shao-Li He, Olawale Ayinde

Steel Slag an overview ScienceDirect Topics

The incorporation of air-quenching steel slag of 0.315–5 mm (in which the content of Fe 1-σ O is over 30%) into concrete to fabricate mechanically sensitive concrete was investigated by Li et al. in 2005 [21]; subsequently, Jia performed a systematic study of get price

(PDF) The use of steel slag in concrete ResearchGate

2017-10-1  Our experimental research was focused on the development of concrete mixture designs with 100% replacement of natural aggregates of fraction 0/32 mm by steel slag of fraction 0/8 mm and air-cooledget price

A Review on Properties of Sustainable Concrete Using Iron

2020-11-24  The durability of stainless steel oxidizing slag concrete increases because of increases CH content after hydration and stated that the optimum replacement reported was 100% . Steel slag aggregate concrete exhibited higher shrinkage due to the presence of CaO and MgO, which also expand up to 0.8% during hydration, leading to durability concerns.get price

作者: Jagadisha, K. Balakrishna Rao, Gopinatha Nayak, B. Adithya Shenoy

Effect of Iron Slag and Robodust on the Mechanical

2020-4-10  In this research, 30% robodust has been replaced with fine aggregate and 10%, 20%, 30%, 40% and 50% iron slag has been replaced with cement. The combination of robodust and iron slag replacementget price

[PDF]

EXPERIMENTAL ANALYSIS OF CEMENT CONCRETE

2021-10-9  IRON SLAG In this work, the Iron Slag is taken from the mandideep Iron and Steel industry located nearby bhopal. It is black in colour as shown in figure. The sieve analysis of iron slag is shown in Table 6. Fig. 1: concrete mix with iron slag Weight of sample taken =1000 gm. Sr. No. IS-Sieve (mm) Wt. Retained (gm) %age retained %age passingget price

(PDF) Iron and steel slag aggregates ResearchGate

2021-6-11  In India use of alternative materials in concrete construction is gathered momentum due to non availability of natural River sand Steel industry produces many by products and Iron and steel slagget price

Assessment of the Metallic Iron Content from Steelmaking

2014-1-1  The metallic iron content from the analysed slag samples varies according to: the composition and the quality of the charge used, the type of steel produced, the melting method used and the steelmaking method used. The results shows that, compared with the refining and deoxidizing slags, the melting slag has the highest content of total andget price

[PDF]

Iron and Steel Slag Utilization: A Comprehensive Analysis

2019-8-21  2.2 Characteristics of iron/steel slag The typical compositions of iron/steel slag are shown in figure 1. The exact composition of iron/steel slag varies with the type of furnace used, type of steel grades used and the pre treatment method. Steel and iron slags primary components include limestone (CaO) and silica (SiO2).get price

The Influence of Steel Slag on Phosphorous Slag Cement

2012-4-1  Grinding phosphorous slag and steel slag with different water content, the initial set time of phosphorus slag cement for 6 hours has reduced get price

The influence of steel slag on the hydration of cement

摘要: The influence of steel slag, a by-product from the processing of iron to steel, on the hydration of cement during the hydration process of complex binder was studied by calorimetry, X-ray diffraction analysis, and Ca(OH)2 content determination.get price

(PDF) The use of steel slag in concrete

2017-10-1  Our experimental research was focused on the development of concrete mixture designs with 100% replacement of natural aggregates of fraction 0/32 mm by steel slag of fraction 0/8 mm and air-cooledget price

Influence of fineness on the cementitious properties of

2014-4-13  Overall, a small steel slag replacement has limited influence on the properties of cement, but a large steel slag replacement tends to decrease the strength especially the early strength of cement. Replacing part of cement by steel slag with high Al 2 O 3 content might accelerate the initial hydration of cement, resulting in a shorter settingget price

Waste Steel Slag and their Influence on the Properties of

2018-2-13  The use of waste is rapidly becoming a supra-disciplinary field in most parts of the world where the use of industrial wastes like fly ash, granulated steel slag, silica fume, and waste fibers in construction has become very popular since the last half of the 20th century. Other forms of industrial wastes are also re-used even for more sensitive applications on soils to upgrade get price

Influence of Steel Slag Type on Concrete Shrinkage

2020-12-28  Building construction and building operations have a massive direct and indirect effect on the environment. Cement-based materials will remain essential to supply the growth of our built environment. Without preventive measures, this necessary demand in cement production will imply a substantial increase in CO2 generation. Reductions in global CO2 emissions due get price

[PDF]

EXPERIMENTAL ANALYSIS OF CEMENT CONCRETE

2021-10-9  IRON SLAG In this work, the Iron Slag is taken from the mandideep Iron and Steel industry located nearby bhopal. It is black in colour as shown in figure. The sieve analysis of iron slag is shown in Table 6. Fig. 1: concrete mix with iron slag Weight of sample taken =1000 gm. Sr. No. IS-Sieve (mm) Wt. Retained (gm) %age retained %age passingget price

The influence of steel slag with high Al2O3 content on the

2013-10-31  The initial hydration of steel slag with high Al 2 O 3 content and its influence on the initial hydration of cement were investigated in this study. Steel slag with high Al 2 O 3 content may contain much calcium aluminate mineral but very little gypsum. The steel slag hydrates much more quickly than cement in the initial hydration period, producing many flake products which get price

The Influence of Slag on the Hydration of Cement

2013-7-31  on The Influence of Slag on the Hydration of Cement. These following conclusions are summarized from the work of Kocaba’s PhD thesis. alite: no influence is shown on the consumption of alite measured by XRD. belite: the substitution of cement by both slags seems to result in a delay in the hydration of belite in the first days.get price

Expansibility of cement paste with tri-component f-CaO in

2018-8-17  Steel slag (SS), which is the by-product of pig iron conversion to steel, accounts for 15–20% of the total output of crude steel [1, 2].In China, crude steel production reached 832 million tons in 2017 .However, the current utilization rate of steel slag in China is only 22% .The large amount of SS not only occupies land resources but also pollutes the environment [5, 6].get price

Influence of Steel Slag on the Workability of Concrete

2013-1-1  Based on the literature [2][3][4][5] [6] [7][8][9][10][11][12], each production process is characterized by different slag to steel output ratios: 250 get price

The Influence of Steel Slag on Phosphorous Slag Cement

2012-4-1  Grinding phosphorous slag and steel slag with different water content, the initial set time of phosphorus slag cement for 6 hours has reduced get price

The influence of steel slag on the hydration of cement

摘要: The influence of steel slag, a by-product from the processing of iron to steel, on the hydration of cement during the hydration process of complex binder was studied by calorimetry, X-ray diffraction analysis, and Ca(OH)2 content determination.get price

(PDF) The use of steel slag in concrete

2017-10-1  Our experimental research was focused on the development of concrete mixture designs with 100% replacement of natural aggregates of fraction 0/32 mm by steel slag of fraction 0/8 mm and air-cooledget price

Cement : Iron and steel slag products : NIPPON

2020-10-18  Expanding the use of Portland blast furnace slag cement is one measure included in the plan to achieve the targets of the Kyoto Protocol, and there are large expectations for its ability to help reduce CO 2 emissions. get price

The Influence of Steel Slag on Phosphorous Slag

In this paper, the influence of steel slag and its pretreatment method on properties of phosphorus slag cement has been studied. The hydration process and microstructure were studied by X-ray diffraction (XRD) and scanning get price

Influence of Steel Slag Type on Concrete Shrinkage MDPI

2020-12-28  Building construction and building operations have a massive direct and indirect effect on the environment. Cement-based materials will remain essential to supply the growth of our built environment. Without preventive measures, this necessary demand in cement production will imply a substantial increase in CO2 generation. Reductions in global CO2 emissions due get price

Influence of slag composition on the stability of steel in

2017-12-18  Among the minor elements found in metallurgical slags, sulfur and manganese can potentially influence the corrosion process of steel embedded in alkali-activated slag cements, as both are redox-sensitive. Particularly, it is possible that these could significantly influence the corrosion process of the steel. Two types of alkali-activated slag mortars were prepared in this get price

BOF Steel Slag: Critical Assessment and Integrated

2021-9-24  During steel production, the impurities in the hot metal react with the fluxes forming the steel slag. Chemical constituents of this steel slag (SS) are relevant to iron/steelmaking or blended cement manufacture. Harmful impurities present in it, however, limit its recycling to these applications. Japan, Europe, and the US consume a significant amount of their SS, but more get price

Chemical characteristics of iron and steel slag : NIPPON

2020-10-18  The primary components of iron and steel slag are limestone (CaO) and silica (SiO 2).Other components of blast furnace slag include alumina (Alsub>2 O 3) and magnesium oxide (MgO), as well as a small amount of sulfur (S), while steelmaking slag contains iron oxide (FeO) and magnesium oxide (MgO).In the case of steelmaking slag, the slag contains metal get price