Contact Us

Modification of steel slag powder by mineral admixture

2012-11-15  The novelty of this manuscript is to modify steel slag powder by mineral admixture and chemical activators to improve its activity. The proper type and optimum addition content of activators would help us to improve the replacement ratio of steel slag powder in admixture and/or in cement-based materials.

Effectiveness of waste steel slag powder on the strength

2020-4-20  The addition of steel slag powder can effectively improve the strength development of CSDS. • The inclusion of 5–10%, and 15–20% SSP were recommended as cement admixture for stabilizing DS and humic acid-containing DS, respectively. • Using 15% cement admixed 20% SSP was conducive to the long-term strength development of CSDS. •

Investigating the effects of steel slag powder on the

The 10% replacement ratio of SSP was found achieving both superior mechanical properties and better durability. Abstract This study introduced both steel slag and recycled aggregate aiming to improve the sustainability performance of self-compacting concrete (SCC).

Application of steel slag powder to enhance the low

2018-5-20  Steel slag powder was used widely in cement concrete industry and road construction to improve the workability and durability of cement concrete construction materials (Cui et al., 2016, Guo and Shi, 2013, Lin et al., 2015, Liu et al., 2015, Pasetto and Baldo, 2013, Xiaolu, 2014, Yan and Qin-Yong, 2016, Zhao et al., 2016).

CURRENT DEVELOPMENT OF SLAG VALORISATION IN

2013-4-9  BF slag powder is low, which will result in the corrosion of the steel bars and in the carbonation of concrete if the ratio of BF slag powder in cement is too high. Thus an appropriate addition of fine ground basic steel slag powder for cement production can improve the property of cement made of BF slag powder

(PDF) Steel slag to improve the high strength of concrete

Steel slag to improve the high strength of concrete. steel slag powder as partial replacement of cemen t 0 to 40%. The normal strength concrete with w/c ratio (w/c = 0.55) was used for

(PDF) Investigating the effects of steel slag powder on

The effects of various replacement ratios of steel slag powder (SSP) to Portland cement (i.e., 10%, 20%, 30%, 40%, and 50%) on the workability, mechanical properties, and durability of SCRAC were

Investigating the effects of steel slag powder on the

This study introduced both steel slag and recycled aggregate aiming to improve the sustainability performance of self-compacting concrete (SCC). The study focused on investigating the effects of steel slag powder on the properties of self-compacting concrete with recycled aggregate (SCRAC).

Slag Powder Scientific.Net

Abstract: Slag powder can improve concrete compression strength and durability owing to the activity of volcano ash and powder filling effect when replacing cement as active mineral admixture. Test results show that the 28-day strength can reach to 74MPa if slag powder with the fineness 810 m 2 /kg is used to replace 60% cement when making C40

Printability and physical properties of iron slag powder

2020-8-13  Slag, which is usually a mixture of metal oxides and silicon dioxide, is the largest fraction of the by-products of iron smelting. Slag is classified according to its characteristics, and there have been various reports on recycling processes utilizing it [1,2,3,4,5].Additionally, it can be used as a base-building material by mixing it with other substances.

CURRENT DEVELOPMENT OF SLAG VALORISATION IN

2013-4-9  BF slag powder is low, which will result in the corrosion of the steel bars and in the carbonation of concrete if the ratio of BF slag powder in cement is too high. Thus an appropriate addition of fine ground basic steel slag powder for cement production can improve the property of cement made of BF slag powder

(PDF) Steel slag to improve the high strength of concrete

Steel slag to improve the high strength of concrete. steel slag powder as partial replacement of cemen t 0 to 40%. The normal strength concrete with w/c ratio (w/c = 0.55) was used for

(PDF) Investigating the effects of steel slag powder on

The effects of various replacement ratios of steel slag powder (SSP) to Portland cement (i.e., 10%, 20%, 30%, 40%, and 50%) on the workability, mechanical properties, and durability of SCRAC were

INFLUENCE OF BLAST-FURNACE SLAG POWDER ON LONG

A report has been compiled on the use of blast-furnace slag powder with Ecocement to improve the long-term strength gain. This study discusses the long-term strength gain of Ecocement with blast-furnace slag powder that it examined the influence of the water cementitious material ratio, mixing ratio of the blast furnace slag powder and the curing condition, in order to obtain basic data to

Investigating the effects of steel slag powder on the

This study introduced both steel slag and recycled aggregate aiming to improve the sustainability performance of self-compacting concrete (SCC). The study focused on investigating the effects of steel slag powder on the properties of self-compacting concrete with recycled aggregate (SCRAC).

Investigation on the effect of slag and limestone powder

µm. The granulated blast furnace slag used has a specific surface area of 490 m 2/kg and a specific density of 2.70 g/cm 3. Limestone powder with a D(0.5) of 5 µm and specific surface area of 1100 m2/kg was used. The major chemical compositions of metakaolin, slag and limestone powder are given in Table 2.

Investigation on the Role of Steel Slag Powder in Blended

2021-6-29  To clarify the role of steel slag powder in blended cement, steel slag powders with different amounts and particle sizes were mixed into blended cement and the inert quartz powder was selected as the reference. The influences of steel slag powder with different amounts and particle sizes on the hydration and hardening properties of blended cement were studied from hydration heat, nonevaporable

Effect of blast furnace slag powder on compressive

2016-9-9  slag powder and blast furnace slag so the recycling of steel slag can bring enormous benefits and environ-mental benefit to whole society.[9] 6. Ground granulated blast furnace slag is commonly used in combination with Portland cement in concrete for many applications[10,11] 7. The heat of

Effect of CaO/Al2O3 Ratio of Ladle Slag on Formation

2, and powder mixture was melted using a vertical resistance furnace at 1 873 K. The pre-melted slag (50 g) was injected through the quartz tube. Compositions of the pre-melted slags are listed in Table 1 and shown in Fig. 2. The C/A ratio of the slag was varied from 0.9 to 3.3. The moment of contact between the slag

What are the effects of slag powder in mortar?

Since slag powder differs greatly from fly ash and silica fume in the chemical composition and particle morphology, it exhibits different behaviors and plays different roles in cement concrete. Water Demand It is generally believed that slag powder has little effect on the water demand. In the chemical composition and mineral composition, slag powder

CURRENT DEVELOPMENT OF SLAG VALORISATION IN

2013-4-9  BF slag powder is low, which will result in the corrosion of the steel bars and in the carbonation of concrete if the ratio of BF slag powder in cement is too high. Thus an appropriate addition of fine ground basic steel slag powder for cement production can improve the property of cement made of BF slag powder

INFLUENCE OF BLAST-FURNACE SLAG POWDER ON LONG

A report has been compiled on the use of blast-furnace slag powder with Ecocement to improve the long-term strength gain. This study discusses the long-term strength gain of Ecocement with blast-furnace slag powder that it examined the influence of the water cementitious material ratio, mixing ratio of the blast furnace slag powder and the curing condition, in order to obtain basic data to

Investigating the effects of steel slag powder on the

This study introduced both steel slag and recycled aggregate aiming to improve the sustainability performance of self-compacting concrete (SCC). The study focused on investigating the effects of steel slag powder on the properties of self-compacting concrete with recycled aggregate (SCRAC).

Investigation on the effect of slag and limestone powder

µm. The granulated blast furnace slag used has a specific surface area of 490 m 2/kg and a specific density of 2.70 g/cm 3. Limestone powder with a D(0.5) of 5 µm and specific surface area of 1100 m2/kg was used. The major chemical compositions of metakaolin, slag and limestone powder are given in Table 2.

Effect of blast furnace slag powder on compressive

2016-9-9  slag powder and blast furnace slag so the recycling of steel slag can bring enormous benefits and environ-mental benefit to whole society.[9] 6. Ground granulated blast furnace slag is commonly used in combination with Portland cement in concrete for many applications[10,11] 7. The heat of

GROUND GRANULATED BLAST FURNACE SLAG POWDER

Description: Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.. The main components of blast furnace slag are CaO (30-50%), SiO 2 (28-38%), Al 2 O 3 (8-24%), and MgO (1-18%).

Effect of CaO/Al2O3 Ratio of Ladle Slag on Formation

2, and powder mixture was melted using a vertical resistance furnace at 1 873 K. The pre-melted slag (50 g) was injected through the quartz tube. Compositions of the pre-melted slags are listed in Table 1 and shown in Fig. 2. The C/A ratio of the slag was varied from 0.9 to 3.3. The moment of contact between the slag

What are the effects of slag powder in mortar?

Since slag powder differs greatly from fly ash and silica fume in the chemical composition and particle morphology, it exhibits different behaviors and plays different roles in cement concrete. Water Demand It is generally believed that slag powder has little effect on the water demand. In the chemical composition and mineral composition, slag powder

Improving the Resistance of Self Compacting Concrete

content, water-powder ratio should be selected to ensure the required performance of the self-compacting concrete,The water-powder ratio should normally be in the range of 28% to 37% by mass of cement or o. 85 to 1.15 by a volumetric ratio to cement (Manual for Mixture Proportioning of Self-compacting Concrete ).

INFLUENCE OF CALCIUM HYDROXIDE POWDER ON

INFLUENCE OF CALCIUM HYDROXIDE POWDER ON THE CEMENT CONTAINING BLAST-FURNACE SLAG 高炉スラグを含有したセメントに及ぼす水酸化カルシウム微粉末の影響 Reduction of CO₂ emission is important problem in cement industry.