INFLUENCE OF SPECIFIC SURFACE AREA AND CALCIUM …
The physical properties of 4 types of blast-furnace slag cement, which was changed the specific surface area of blast-furnace slag and the existence of calcium sulfate in blast-furnace slag …
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Influence of Steel Slag Powder with Different Specific Surface Area …
Some properties of concrete added steel slag powder with different specific surface area were studied in this paper. The property and microstructure of the concrete were investigated by ...
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Effect of particle-size distribution and specific surface area …
The influence of packing density of aggregate on workability, rheological, and mechanical properties of self-consolidating concrete (SCC) has been investigated by Khayat et al. [4].The use of fine and coarse aggregate combination yielding a high packing density of 0.80 compared to another combination with a packing density of 0.74 was shown to reduce the high …
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(PDF) Particle size distribution and specific …
Particle size distribution, uniformity of the distribution and specific surface area (SSA) have a great influence on service properties of cement, particularly on strength.
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sbm slag powder specific surface area.md
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INFLUENCE OF SPECIFIC SURFACE AREA AND CALCIUM …
This paper describes the influence of the specific surface area of blast-furnace slag and the existence of calcium sulfate in blast-furnace slag on the effect of calcium hydroxide powder, which is considered to accelerate the reaction of blast-furnace slag in cement containing blast-furnace slag, for the purpose of improving a characteristic of cement containing blast-furnace …
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Influence of steel slag on strength and microstructural …
Steel slag, FA, and cement exhibit distinct specific gravities: 2.81 for steel slag, 2.32 for FA, and 3.15 for cement. Additionally, their specific surface area values differ: steel …
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Influence of Steel Slag on Properties of Cement-Based …
Steel slag was used instead of sand to compare steel slag concrete with regular concrete. The findings showed that the steel slag concrete has good compatibility and can meet the requirements of concrete. Both the steel slag admixture and the water–cement ratio had …
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Influence of Steel Slag Powder with Different Specific Surface Area …
Some properties of concrete added steel slag powder with different specific surface area were studied in this paper. The property and microstructure of the concrete were investigated by strength test, XRD and SEM. The results indicate that the compressive strength increases firstly and then decreases with increase of the specific surface area of …
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Hydration heat evolution of high-belite cement–phosphate slag binder
Since the specific surface area of phosphorus slag in P3-CH is smaller with a weakened ability to consume portlandite, the content of portlandite is higher. The results clearly show that the activity of phosphorus slag increases with the specific surface area, and its influence is more obvious during the later stage.
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Physicochemical properties of CO2-cured belite-rich cement …
The EAF reduction slag used in this study was obtained from The Korea Institute of Civil Engineering and Building Technology in South Korea. After crushing with a hammer, the slag underwent ball milling for over 24 hrs and was subsequently sieved using a 150 μm sieve. It exhibited a specific surface area of 4750 cm 2 /g and a specific gravity ...
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Insights into the role of slag fineness on the hydration of …
As the specific surface area of slag in G·SAC increases from 400 m²/kg to 800 m²/kg, the induction period decreases by 2 hours, while the hydration heat value remains …
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Effect of superfine slag powder on cement properties
The degrees of hydration of slag powders with specific surface area ranging from 300 to 800m2/kg were calculated to illustrate the enhancement of pozzolanic effect. ... of their influence on the ...
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Influence of the Cement Fineness on Strengths of Cement …
Mechanical grinding was used to increase the specific surface area of cement in order to increase the dosage of phosphorus slag (PS) in Type P · O 42.5 cement. X-ray diffraction, hydration heat, and scanning electron microscopy were used to analyze the hydration process of cement containing PS.
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Influence of limestone and slag on the pore structure of cement …
The specific surface area of hardened cement paste indicates the amount of accessible fine pores [24]. ... Influence of pozzolans and slag on the microstructure of partially carbonated cement paste by means of water vapour and …
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Influence of magnesium slag as a mineral admixture on the performance
Influence of magnesium slag content on the mechanical properties of the concrete (MS2 with a specific surface area of 485 m 2 /kg): (a) compressive strength; (b) flexural strength. Fig. 6 (a) shows that the compressive strength of the concrete decreased as the amount of MS increased to 40% at all curing ages.
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Influence of pozzolans and slag on the microstructure of …
A batch of cement pastes was prepared with a range of water to binder ratios from 0.33 to 0.50. As the aim of the work is to study the influence of high volumes of supplementary cementing materials applied in "ordinary" and high-performance concrete a polycarboxylate type superplasticizer (Glenium 51) was also applied in some cases.
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The Influence of the Acceleration Admixture Type and …
The authors aimed to compare and evaluate different methods to reduce setting time, namely, the effects of temperature, the specific surface area of cement and GGBFS, the type of Portland clinker ...
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Effects of carbonation degree on the hydration reactivity of …
The enlarged specific surface area increased the hydration reaction interface between water and steel slag [52]. Besides, the carbonation products could contact more …
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Influence of blast furnace slag type on physical and …
equal to 28.2 % having an increased specific surface area unlike other Portland cements. Compared to ... Semerikov I and Kapustin A 2010 Influence of blast furnace slag on cement quality according ...
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Environmental, economic and engineering performances of …
Compared to pure cement paste, the longer induction period of the paste samples observed in the present study can be related to two reasons: 1) the rapid adsorption of water by carbonated steel slag, thus reducing the area and probability of contact between C 3 S and water (Fu et al., 2022); and 2) the high specific surface area of carbonated ...
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Fresh properties of limestone-calcined clay-slag cement pastes
Furthermore, the addition of slag in LC3 can also modify the fresh properties of quaternary blended cement pastes. Compared to slag, calcined clay, with layered microstructure and extremely high specific surface area, shows much higher water and superplasticizer demands when used in cementitious materials, as reported by Refs.
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Understanding the dynamic rheological property of cement …
The changes in surface characteristics, including specific surface area, etc., of particles always have an essential influence on the rheological properties of cement paste. This is of concern because the rheological properties not only determine the construction quality [17], but also affect the mechanical and durable properties of concrete ...
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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
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Effect of ground steel slag powder on cement properties
The work aims to evaluate the influences of steel slag's fineness and particle-size distribution on the properties of cement-based materials. The materials used for this study …
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Influence of iron content of chemically and mineralogically …
Yang et al. investigated the influence of the addition of four alkanolamines on the hydration of a steel slag cement system ... Micromeritics). The specific surface area according to Blaine was measured in accordance with EN 196–6 [35]. The specific ... The influence of steel slag on the hydration of cement during the hydration process of ...
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Influence of steel slag to granulated blast furnace slag ratio …
The DG obtained through a wet desulphurisation process consisted mainly of gypsum and hemihydrate gypsum [3], with a specific surface area of 620 m 2 /kg. The OPC was purchased from China Building Materials Academy and met the requirements of P.O 42.5 ordinary Portland cement in Chinese Standard GB175–2007 Common Portland cement [24].
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Effects of calcium carbide slag on properties and carbon …
CO 2-mixing by directly injecting CO 2 into fresh cement-based materials is a burgeoning technology to produce low-carbon cement products. The objective of this study is to investigate the influence of the calcium carbide slag (CCS) content on the properties and carbon sequestration efficiency of cement pastes mixed under direct CO 2 injection conditions.
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Preparation of aragonite-rich whisker materials from magnesium slag …
The specific surface area and porosity of the samples were measured using an automated surface area and porosity analyzer (ASAP2460, Micromeritics). The samples were degassed in a vacuum at 120 °C to remove adsorbed gases and moisture, and N 2 adsorption isotherms were analyzed using the BET equation to derive the slope and intercept of the ...
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Insight to workability, compressive strength and …
The addition of steel slag promoted the cement hydration, while lithium slag inhibited the cement hydration, from the XRD peak intensity of porlandite of S10 and L10. ... This revealed that the high specific surface area of LS particles may have delayed the initial hydration of OPC by LS powder. However, the exothermic peak of paste around 12 h ...
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