Moisture-induced damage resistance of asphalt mixture entirely composed
Asphalt mixture, cement concrete and semi-rigid materials are widely used in the ... Results suggested that all technical properties of used aggregates and fillers met the requirements of Chinese standard [29]. Table 1. The technical properties of aggregates. ... The inadequacy of directly using gneiss and fine steel slag in asphalt mixture ...
Slag Cement and Concrete Pavements
Mixtures should be optimized for strength and durability using appropriate test methods. It is not uncommon to find that total cementitious material can be reduced by using appropriate …
Utilization of steel slag as coarse aggregate and filler in …
Steel slag is a typical solid waste generating in the steelmaking process, and it accounts for about 15%–20% of steel production (Furlani et al., 2010).According to the China Statistical Yearbook 2022; NBS, 2023), China's crude steel output was 1.035 billion tons in 2022, which meant the amount of steel slag was about 155–207 million tons.The storage and …
Steel slag and its applications in cement and concrete …
In this review, steel slag usage in the cement and concrete industry and its environmental effects were examined. Also, its physical and chemical structure, its effect on the characteristics of concrete, and its applications in different usage areas were specified.
Optimizing the Utilization of Steel Slag in Cement …
When steel slag aggregate is used in road subgrade˻ steel slag is mostly used as an aggregate into the mix˻ and the performance of the mix is studied accordingly˺ Li et al˺ ̈ɣɢ̉ evaluated the feasibility of steel slag used in road subgrade˻ and analyzed the inter-
(PDF) Influence of Steel Slag on Properties of Cement
This literature review found that steel slag increases the fluidity of cement-based materials, with a setting time approximately 210% to 300% longer than that of Portland cement (PC).
(PDF) Sustainable Recycling of Electric Arc Furnace Steel Slag …
Moreover, the drying shrinkage of steel slag concrete after the same curing time (90 days) presented values very close to reference concrete, indicating that steel slag has a small influence on the concrete shrinkage, as demonstrated by Qiang et al. [28]. The main problem concerns the durability of the EAF steel slag concrete [18,27].
Steel slag as a valuable material for concrete production
The use of steel slag as a concrete aggregate is likely to be more economically acceptable than its use as a concrete binder. ... [10] and national technical requirements for reinforced concrete structures [11] and could be used as a substitute for commonly used natural aggregates. ... 4.3 Volume changes Fig. 8 shows the comparison of average ...
Properties of RCA stabilized with alkali-activated steel slag …
In recent decades, China steel industry has flourished, consistently leading global crude steel production [1], [2].Steel slag (SS), a by-product of this production, has reached an estimated 0.8144 to 1.5272 million tons in China in 2022 [3].The total accumulated SS exceeds 10 billion tons, yet its usage remains a mere fraction (about 10%) of this amount, posing a …
Steel Slag and Recycled Concrete Aggregates: Replacing …
Various researchers are developing efforts to integrate waste and by-products as alternative materials in road construction and maintenance, reducing environmental impacts and promoting a circular economy. Among the alternative materials that several authors have studied regarding their use as partial or total substitutes for natural aggregates in the asphalt paving …
A Review on Utilization of Steel Slag in Bituminous Concrete …
Tarawneh, S. A., Gharaibeh, E. S., & Saraireh, F. M. (2014) compared the physical and mechanical properties of steel slag aggregate concrete to conventional crushed limestone stone aggregate concrete. Steel slag, a by-product of the steel industry consisting mainly of calcium carbonate, was used as a replacement for conventional aggregates in ...
Utilization of steel slag as coarse aggregate and filler in …
Add steel slag into SMA mixture (SSSM) simultaneously in the form of coarse aggregate and filler. • SSSM has better engineering performance than ordinary SMA mixture. • Steel slag is an environmental and economical substitute for natural aggregates.
Prediction of Skid Resistance of Steel Slag Asphalt Mixture …
The results showed that the incorporation of steel slag significantly improves skid resistance while helping to reduce skid attenuation loss. Skid resistance increased with the increase in steel slag incorporation. With steel slag incorporation, it was optimal.
Prospects of sustainable geotechnical applications of …
As reported in the literature, the unconfined compressive strength (UCS) of CLSM based on steel slag, cement kiln dust (CKD), ground granulated blast furnace slag (GGBFS), and oyster shell waste (WOS) satisfied the strength requirements for the unexcavated condition of ACI [9], [22], [23].
Can Steel Slag Be Used as an Aggregate in Concrete and How? A Technical
At 28 days, the dangerous stress is given by: d 0.02 8750 6 10 d k 12 1.512 9.07MPa [ ] 4.5MPa R 0.03 0.67 2260 e 6 Therefore, the given steel slag cannot be used in concrete. If the steel slag is to be used in cement based matrix, the dangerous stress produced from the expansion stress of the steel slag at each age should be less than the ...
EFFECT OF SLAG CEMENT ON SHRINKAGE IN …
Potential Slag Cement Contribution Sustainable Sites SS 3 2.1 and 2.2 Brownfield Redevelopment 1 Slag cement can be used to stabilize and solidify contaminated soils at brownfield sites. Sustainable Sites SS 7.1 2.1 and 2.2 Heat Island Effect: Non-Roof 1 Slag cement is a light -colored material, making concrete more reflective compared
Moisture stability improvement of asphalt mixture considering …
Coomarasamy and Walzak found that chemical changes took place on the surface of steel slag when steel slag based asphalt pavement was in moist environment. The chemical changes resulted in poor moisture damage resistance of steel slag asphalt pavement [34]. It indicated that the surface characteristics of steel slag aggregate would gradually ...
(PDF) Steel slag and its applications in cement and …
In this review, steel slag usage in the cement and concrete industry and its environmental effects were examined. Also, its physical and chemical structure, its effect on the characteristics of concrete, and its applications in different …
SUGGESTED SPECIFICATIONS FOR SLAG CEMENT IN …
Slag cement should be used as a pound for pound replacement for portland cement in a concrete mixture. Slag cement is a raw material that is used in a wide variety of commercial …
Supplementary cementitious materials in Bulk
Slag cement replaces portland cement in a one-to-one ratio by mass and can comprise of anywhere from 20 to 80 percent of the total cementitious content of a concrete mixture. Deciding how much slag cement to include in a mixture depends upon early strength requirements, heat generation, the need for durability and early set time.
Performance of Steel Slag Aggregate Concrete with Varied Water- Cement
Numerous researchers have investigated the mechanical properties and durability of steel slag concrete [17, 18, 19]. Their studies showcased an appreciable results in strength of concrete tested. In addition, concrete with steel slag was reported to have a good post-fire residual strength [20] than the normal concrete [21].
Production and recycling of blast furnace slag: A life cycle …
This article investigated the cradle-to-gate environmental impact of granulated blast furnace slag (GBFS) produced in the steel industry and replacement of blast furnace (BF) slag (50%) in place of clinker in Portland slag cement using GaBi software (Indian extension database). In case of GBFS production, maximum burden on the environment is ...
Slag
Ground-granulated blast-furnace slag (GGBFS) is produced by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water, to produce a granular product that is then dried and ground into a fine powder.
Grading composition and technical requirements of AC-20 asphalt mixture
Due to high calcium oxide content, cement has higher alkalinity compared to conventional fillers. During the preparation of asphalt mixture, the alkaline components can react with acidic ...
Experimental Investigation Of Coarse Aggregate With …
Slag is a partially vitreous by product of the process of smelting ore. Slag is usually a mixture of metal oxides and silicon dioxides. One of the most beneficial uses for furnace slag is in concrete. Because of its chemical and physical properties, it is a very reactive aggregate. Concrete containing slag can have very high strength and can be ...
Greener self-compacting concrete using stainless steel reducing slag
This paper presents the results of a study on self-compacting concrete (SCC) made with stainless steel reducing slag (SSRS). Two kinds of SSRS, being different in the surface area (e.g., 1766- and 7970 cm 2 /g), were employed as filler and cement substitution, respectively. A series of six mixing proportions with a change of SSRS-cement ratio replacing …
Application of Steel Slag as an Aggregate in Concrete …
Utilizing treated steel slag as coarse/fine aggregate in concrete production is a high-value solution that can alleviate the worry about resource depletion and solve the …
How steel slag helps the concrete and cement industry cut …
Steel slag is helping the concrete and cement industry reduce its carbon emissions, but there may be less steel slag available in future. ...
(PDF) The use of steel slag in concrete
The research has discovered that substitution of natural aggregates with steel slag of the same fraction in concrete mixture is possible, without significantly affecting the strength...
Effect of electric furnace steel slag powder on the strength …
The results of this study provide theoretical foundation and technical support for the comprehensive utilization of bulk solid waste in the region to develop green low-carbon high-performance concrete. ... flowability ratio, and steam-curing expansion rate of the experimental EFSSP all meet the requirements of "Steel slag powder used for cement ...