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effect of slag on pumpability concrete

Effects of Ground Granulated Blast Furnace Slag in

2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Committee 233, 2004). The term slag cement will be used throughout this paper when referring to finely-ground granulated blast-furnace slag.

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Pumpability of Blast-Furnace Slag Aggregate Concrete

Title: Pumpability of Blast-Furnace Slag Aggregate Concrete Author(s): Hideo Kasami, Tadashi Ikeda, Shinichi Numata, and Hisamitsu Harada Publication: Symposium Paper Volume: 79 Issue: Appears on pages(s): 1143-1164 Keywords: absorption; aggregates; blast furnace slag; coarse aggregates; compressive strength; field tests; fine aggregates; porosity; pumped concrete; ready-mixed concrete;

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Slag Cement Questions

Slag cement generally improves workability, finishability and pumpability of plastic concrete. It may provide a small decrease in water demand (see SCIC #5). Slag cement will tend to increase time of initial set, which is often a benefit in warm weather.

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Effect of slag cement on the properties of ultra-high

Nov 30, 2018  Effect of slag cement on the flowability of UHPC mixes (the measuring cone has a 100-mm bottom diameter; thus 100-mm spread indicates no spread at all). The air content of UHPC mixes was measured in the fresh state using the unit weight method and characterized in the hardened state using the ASTM C457 linear traverse method.

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The Effect of Slag and Limestone Filler on Resistivity

Nov 22, 2012  Concrete was tested for compressive strength, sorptivity, resistivity, and water penetration under pressure. The volume of paste in all concrete mixes was the same. Results showed the effect of slag on concrete transport properties. The effect of limestone filler was minimal either admixed solely or in conjunction with slag.

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EFFECT OF ULTRA FINE SLAG REPLACEMENT ON DURABILITY

The total pore volume of concrete also decreases as the slag fineness becomes higher6. Slag of 786 m 2/kg fineness has a 50% smaller diffusion coefficient than a normal OPC 6. This coefficient drops more dramatically as the fineness of the slag is improved. In this work, the effect of UFGGBS replacement on the durability and mechanical

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Slag cement with fly ash Slag Cement Association

Slag cement replaces as much as 50 percent in normal concrete (and up to 80 percent in special applications such as mass concrete). Fly ash is usually limited to 20 or 30 percent. Slag cement is the co-product of a controlled process, iron production, which results in a very uniform composition from source to source.

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Optimizing Concrete Pavement Mixes with Slag Cement

Feb 08, 2015  Effect of Slag Cement on Flexural Strength 0% 20% 40% 60% 80% 100% 120% 140% 728 Flexural Strength, % of 28 day OPC Age, days 100% OPC 50% OPC/50% Slag Cement OPC @28 days = 830 psi (5.7 MPa) Aggregate Calcium Silicate Hydrate WCPA Annual Concrete Pavement Workshop Bruce Blair Presentation February 12, 2015 26 of 41

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Effect of Slag on the Performance of Concretes in

Title: Effect of Slag on the Performance of Concretes in Hydrocarbon Fire Author(s): M. Guerrieri, J. Sanjayan, and F. Collins Publication: Symposium Paper Volume: 255 Issue: Appears on pages(s): 23-46 Keywords: activated slag; hydrocarbon fire; moisture clog; spalling; thermal gradient Date: 10/1/2008 Abstract: A hydrocarbon fire test was conducted on nine concrete slabs incorporating three

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(PDF) Effect of using steel slag aggregate on mechanical

Dong et al. [4] and Tarawaneh et al. [5] were studied the effect of steel slag recycled, steel slag aggregate respectively on the mechanical properties of concrete. Heniegal et al. improved the

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The Effect of Slag and Limestone Filler on Resistivity

Concrete was tested for compressive strength, sorptivity, resistivity, and water penetration under pressure. The volume of paste in all concrete mixes was the same. Results showed the effect of slag on concrete transport properties. The effect of limestone filler was minimal either admixed solely or in conjunction with slag.

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Optimizing Concrete Pavement Mixes with Slag Cement

Feb 08, 2015  Effect of Slag Cement on Flexural Strength 0% 20% 40% 60% 80% 100% 120% 140% 728 Flexural Strength, % of 28 day OPC Age, days 100% OPC 50% OPC/50% Slag Cement OPC @28 days = 830 psi (5.7 MPa) Aggregate Calcium Silicate Hydrate WCPA Annual Concrete Pavement Workshop Bruce Blair Presentation February 12, 2015 26 of 41

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Effect of blast furnace slag powder on compressive

Compressive strength of blast furnace slag concrete with different dosage of slag was studied as a partial replacement of cement. From the experimental investigations, it has been observed that, the optimum replacement of Ground Granulated Blast Furnace Slag Powder to cement without changing much the compressive strength is 15%.

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(PDF) Effect of using steel slag aggregate on mechanical

Dong et al. [4] and Tarawaneh et al. [5] were studied the effect of steel slag recycled, steel slag aggregate respectively on the mechanical properties of concrete. Heniegal et al. improved the

get price

Effects of High-Volume Ground Slag Powder on the

Massive high-strength concrete structures tend to have a high risk of cracking. Ground slag powder (GSP), a sustainable and green industrial waste, is suitable for high-strength concrete. We carried out an experimental study of the effects of GSP with a specific surface area of 659 m2/kg on the hydration, pore structure, compressive strength and chloride ion penetrability resistance of high

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The Effect of Steel Slag Coarse Aggregate on the

This work performs experimental investigations on concrete made with difference replacement percentage of first-class burnt clay brick aggregate (0, 10, 20, 30, 40, 50, 60, 80, and 100%) by steel slag (SS) aggregate. The aim is to evaluate the mechanical properties as well as durability performances, additionally, water absorption porosity test is performed to investigate the influence of

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EFFECT OF ULTRA FINE SLAG REPLACEMENT ON DURABILITY

The total pore volume of concrete also decreases as the slag fineness becomes higher6. Slag of 786 m 2/kg fineness has a 50% smaller diffusion coefficient than a normal OPC 6. This coefficient drops more dramatically as the fineness of the slag is improved. In this work, the effect of UFGGBS replacement on the durability and mechanical

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Making Concrete Pumpable Concrete Construction Magazine

Jan 28, 2020  Factors that Impact Pumpability A wide array of factors can impact concrete pumpability, Bui notes, such as the dimension, shape, gradation, and volume of aggregates. Supplementary materials like fly ash, silica fume, slag, and limestone also influence the rheology of the mix and therefore its pumpability.

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Effect of Steel Slag Powder on the Durability of High

dvanced mineral admixtures can lead to economical high performance concrete with enhanced durability and reduced cement content. When super fine steel slag powder is mixed into concrete as active admixture, resistance to abrasion and resistance to chloride penetration are improved as well as workability and mechanical properties of the concrete.

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UNDERSTANDING THE PUMPABILITY OF CONCRETE

effect of mixture design on pumpability are presented in the paper. The concept of Real Paste Content is brought forward as a tool to help engineers clearly understand the mechanisms taking place during the transport of concrete under pressure. CONCRETE PUMPING The pumpability of concrete is not an easy concept to define and requires the

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slag in concrete Topic

Apr 22, 2021  The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. Various types of slag are produced: Blast-furnace slag—The nonmetallic product, consisting essentially of silicates and aluminosilicates of calcium and of other bases, that is developed in a molten condition simultaneously with iron in a blast

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LEHIGH SLAG CEMENT PRODUCT DATA SHEET

LEHIGH SLAG CEMENT PRODUCT DESCRIPTION Lehigh Slag Cement conforms to ASTM C989/AASHTO M 302 standard specifications for “Slag Cement as a Constituent in Concrete and Mortars” and CSA A3001 “Cementitious Material for Use in Concrete.” Slag has cementitious properties similar to portland cement.

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effect of slag on pumpability concrete

effect of slag on pumpability concrete Effects of Ground Granulated Blast Furnace Slag in 2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Com

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The Synergistic Effect of Nano-Silica with Slag on Frost

The frost resistance of concrete is one of the most important factors for its durability. Supplementary cementitious materials could effectively improve the frost resistance of concrete. On this basis, the synergistic effect of nano-silica (NS) with slag on the frost resistance of concrete is better than the single, which was investigated. Nano-silica and slag were employed as a partial

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The Effect of Slag and Limestone Filler on Resistivity

Concrete was tested for compressive strength, sorptivity, resistivity, and water penetration under pressure. The volume of paste in all concrete mixes was the same. Results showed the effect of slag on concrete transport properties. The effect of limestone filler was minimal either admixed solely or in conjunction with slag.

get price

Effect of blast furnace slag powder on compressive

Compressive strength of blast furnace slag concrete with different dosage of slag was studied as a partial replacement of cement. From the experimental investigations, it has been observed that, the optimum replacement of Ground Granulated Blast Furnace Slag Powder to cement without changing much the compressive strength is 15%.

get price

effect of slag on pumpability concrete

effect of slag on pumpability concrete Effects of Ground Granulated Blast Furnace Slag in 2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Com

get price

Effects of High-Volume Ground Slag Powder on the

Massive high-strength concrete structures tend to have a high risk of cracking. Ground slag powder (GSP), a sustainable and green industrial waste, is suitable for high-strength concrete. We carried out an experimental study of the effects of GSP with a specific surface area of 659 m2/kg on the hydration, pore structure, compressive strength and chloride ion penetrability resistance of high

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CONCRETE 101

expanded shale, clay and slag. These are used to produce structural How does high cement content effect pumping (i.e. 3000 PSI Fly ash increases the pumpability of concrete by making it more slippery without adding more water. It’s small, spherical shape is the

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Effect of Steel Slag Powder on the Durability of High

dvanced mineral admixtures can lead to economical high performance concrete with enhanced durability and reduced cement content. When super fine steel slag powder is mixed into concrete as active admixture, resistance to abrasion and resistance to chloride penetration are improved as well as workability and mechanical properties of the concrete.

get price

EFFECT OF ULTRA FINE SLAG REPLACEMENT ON DURABILITY

The total pore volume of concrete also decreases as the slag fineness becomes higher6. Slag of 786 m 2/kg fineness has a 50% smaller diffusion coefficient than a normal OPC 6. This coefficient drops more dramatically as the fineness of the slag is improved. In this work, the effect of UFGGBS replacement on the durability and mechanical

get price

Evaluation of the Effect of Fly Ash and Slag on the

For example, there is a sudden drop in the UCS for the control mixture from 3.66 MPa to 2.7 MPa when only 10% of the cement content is replaced by slag. Therefore, although the application of slag in cement shows some promising results for the concrete mixture, this combination may otherwise impose critical effects on the production of CAM. 3.7.

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Properties of Hardened Concrete with Blast Furnace Slag

Color of concrete incorporating slag Due to light color of blast furnace slag, color of slag concrete is lighter in comparison with conventional concrete. over, deep blue-green color shown by interior part of slag concrete and can be noticed from slag concrete broken parts, for

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LEHIGH SLAG CEMENT PRODUCT DATA SHEET

LEHIGH SLAG CEMENT PRODUCT DESCRIPTION Lehigh Slag Cement conforms to ASTM C989/AASHTO M 302 standard specifications for “Slag Cement as a Constituent in Concrete and Mortars” and CSA A3001 “Cementitious Material for Use in Concrete.” Slag has cementitious properties similar to portland cement.

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Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3

and the desired effects on the concrete (Helmuth 1987 and ACI 232 1996). SLAG Ground granulated blast-furnace slag (Fig. 3-5), also called slag cement, is made from iron blast-furnace slag; it is a nonmetallic hydraulic cement consisting essentially of sili-cates and aluminosilicates of

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The effect of steel slag as a coarse aggregate and

The Development of concrete technology is continues to grow. The requisite for efficient constructions that are often viewed in terms of concrete mechanical behavior, application on the field, and cost estimation of implementation increasingly require engineers to optimize construction materials, especially for concrete materials. Various types of concrete have now been developed according to

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Effect of Recycled Aggregate and Iron Slag in Concrete

“Effects of curing conditions on properties of concrete using slag replacement.” Cement and Concrete Vol. 30 pp 465-472. [3] Bakhareva T., Sanjayana J.G., Cheng Y.B. (2001) “Sulphate attack on alkali-activated slag concrete.” Cement and Concrete Vol. 32

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PROPERTIES AND EFFECTS OF COPPER SLAG IN CONCRETE

Properties And Effects Of Copper Slag In Concrete 48 Table 2.7 Physical Properties of Coarse Aggregates, Fine Aggregates and Copper Slag Table 2.8 Chemical Analysis of Copper Slag 3 Table 2.9 Mix Proportions (Kg / m3) and Mix Ratio and tested at 7,28 and 56 days of curing in water Table 2.10 Sizes and Types of Moulds Used for

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