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Effect of slag cement on the properties of ultra-high

2018-11-30  Yazici et al. examined the curing effect on reactive powder concrete with high volumes of slag cement and found that 20% slag cement was the optimum replacement level in terms of compressive strength while 60% slag cement slightly reduced the compressive strength. 0.83 × 10 −6 /°C

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.

EFFECT OF GRANULATED BLAST FURNACE SLAG ON THE

EFFECT OF GRANULATED BLAST FURNACE SLAG ON THE DURABILITY OF SELF COMPACTING CONCRETE IN HOT SCC-15S: Self-compacting concrete with 15% slag as cement replacement.

Effect of Cementitious Blast-Furnace Slag on

The permeability of concrete containing GGBF slag is less affected by increases in water-cement ratio than concrete containing regular portland cement alone. 3. The detrimental effects of accelerated curing on the permeability of concrete are virtually eliminated with cement blends containing GGBF slag

UNDERSTANDING THE PUMPABILITY OF CONCRETE

2020-10-13  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

Effect Of Slag On Pumpability Concrete In Nigeria

Effect Of Slag On Pumpability Concrete In Nigeria. We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment. And they are mainly used to crush coarse minerals like gold and copper

The effect of slag addition on strength development

This paper presents the effect of slag addition on strength development and workability of fly ash/slag based geopolymer (FASLG) concrete cured at normal temperature. Class C fly ash with high ferrite (Fe) content was used as the primary material. The proportions of fly ash (FA) to slag (SL) are: 1 FA : 0 SL, 0.9 FA : 0.1 SL, 0.7 FA : 0.3 SL, and 0.5 FA : 0.5 SL.

Effect of admixtures on pumpability for high-strength

In this study, the effects of mineral and chemical admixtures on pumpability of high-strength concrete were investigated through measuring rheological properties of concrete and the lubricating layer.

Effect of blast-furnace slag as cement replacement on

Sustainability is getting more and more attention during the last years. Also in the concrete and cement industry, attempts are made to minimize the environmental impact. One way to implement this thought, is the use of industrial by-products as cement replacing material. The 'waste' products are upgraded in high-value applications and the need for clinker is reduced.

Effects of steel slag powder on workability and

2014-8-5  The workability and durability of a type of sustainable concrete made with steel slag powder were investigated. The hydrated products of cement paste with ground granulated blast furnace slag (GGBFS) alone or with a combined admixture of GGBFS-steel slag powder were investigated by X-ray diffraction (XRD). Furthermore, the mechanism of chemically activated steel slag powder was also

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

How Does Slag Cement Affect Time Of Set

Slag Cement Effect On Set Time Of Concrete. Concrete Time Of Set Slag Cement. At temperatures less than 85 degrees Fahrenheit, concrete containing slag cement can have longer times of set, when compared with 100 percent portland cement concrete. The lower the ambient andor concrete temperatures, the slower the set times will be Figure 1. Get Price.

slag cement effect on set time of concrete

slag cement effect on set time of concrete. slag cement effect on set time of concrete. At temperatures less than 85 degrees Fahrenheit concrete containing slag cement can have longer times of set when compared with 100 percent portland cement concrete The lower the ambient andor concrete temperatures the slower the set times will be Figure 1 The percentage of slag cement used can also

Optimizing Concrete Pavement Mixes with Slag Cement

2015-2-8  • reflects more light, reducing the “urban heat island”effect • Slag cement reduces efflorescence by reduced permeability and increasing the consumption of calcium hydroxide and alkalis Portland vs. Slag cement concrete WCPA Annual Concrete Pavement Workshop Bruce Blair Presentation February 12, 2015 22 of 41

Slag Cement Questions

Slag cement is normally used in proportions from 25 to 50 percent in structural and general concrete applications; the higher the amount of slag, the lighter the concrete. Slag cement concrete may experience some initial "greening" after placement but this temporary color change will disappear with exposure to light and air (see related FAQ on

how does slag cement affect time of set

Slag Cement Questions. Slag cement concrete sometimes turns green for a short period of time due to the oxidation state of sulfide sulphur compounds during portland/slag cement hydration This is normally a temporary condition and the concrete, upon exposure to air and sunlight, will ultimately become lighter than 100% portland cement concrete The condition is prolonged with extended moist

Application of Molten Slag Fine Aggregate Concrete

With increasing number of melting-solidification plants for the domestic wastes and incineration ashes, the resulting molten slag is now expected as a recycled aggregate for concrete in Japan, while application examples until now are limited to non-loadbearing pre-cast concrete and concrete secondary products. This study deals with a full-scale application of molten slag recycled fine aggregate.

CONCRETE 101

2014-10-9  Lightweight concrete is made using lightweight aggregates of expanded shale, clay and slag. These are used to produce structural lightweight concrete with a freshly mixed unit weight of 90 to 120 pounds per cubic foot. Normal weight concrete is typically 135 to 150 pounds per cubic foot.

slag (GGBF) in slab-on-grade concrete Structural

2005-7-28  I designed slag-grinding plant for a client. I got an education on slag from them. It is a great material. The benefits are numerous when slag is used in concrete. They used 50:50 slag:cement mixes not only for the slabs, wall, footing and grade beams. They

What are the Factors Affecting Workability of Concrete?

The use of slag cement also improves workability but its effect depends on the characteristics of the concrete mixture in which it is used. References: ACI 238.1R-08 Report on Measurements of Workability and Rheology of Fresh Concrete Read More: What is Workability of Concrete?

effect of slag on pumpability concrete Grinding Mill

2018-3-6  High Volume Slag Concrete. High volume slag concrete is a fundamentally green material that reduces CO2 and is and the thixotropic effect does not affect ease of placement or pumpability. » More detailed! Slag Cement and Fly Ash In Concrete Mining Equipment. This effect along with slag cement is a result of its influence upon paste

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

Pump up your concrete strength with slag DJC

A record 3.5 million metric tons of slag cement was shipped for use in concrete and construction applications in 2004, a 15.5 percent increase over 2002, according to the Slag Cement Association.

How Does Slag Cement Affect Time Of Set

Slag Cement Effect On Set Time Of Concrete. Concrete Time Of Set Slag Cement. At temperatures less than 85 degrees Fahrenheit, concrete containing slag cement can have longer times of set, when compared with 100 percent portland cement concrete. The lower the ambient andor concrete temperatures, the slower the set times will be Figure 1. Get Price.

Effects of Aggregate Properties on Concrete Size,

2017-5-2  Variation in the size of Aggregates changes the water demand, cement content, micro-cracking (strength) in concrete. It also effects pumpability, and durability of concrete. Grading of aggregates depends on the proportions of coarse and fine aggregate. If grading of aggregate is varied, it also changes cement paste content (cost economy), workability of the mix,

slag cement effect on set time of concrete

slag cement effect on set time of concrete. slag cement effect on set time of concrete. At temperatures less than 85 degrees Fahrenheit concrete containing slag cement can have longer times of set when compared with 100 percent portland cement concrete The lower the ambient andor concrete temperatures the slower the set times will be Figure 1 The percentage of slag cement used can also

how does slag cement affect time of set

Slag Cement Questions. Slag cement concrete sometimes turns green for a short period of time due to the oxidation state of sulfide sulphur compounds during portland/slag cement hydration This is normally a temporary condition and the concrete, upon exposure to air and sunlight, will ultimately become lighter than 100% portland cement concrete The condition is prolonged with extended moist

What are the Factors Affecting Workability of Concrete?

The use of slag cement also improves workability but its effect depends on the characteristics of the concrete mixture in which it is used. References: ACI 238.1R-08 Report on Measurements of Workability and Rheology of Fresh Concrete Read More: What is Workability of Concrete?

slag (GGBF) in slab-on-grade concrete Structural

2005-7-28  I designed slag-grinding plant for a client. I got an education on slag from them. It is a great material. The benefits are numerous when slag is used in concrete. They used 50:50 slag:cement mixes not only for the slabs, wall, footing and grade beams. They

Properties of Concrete Workability, Setting, Bleeding

2017-3-19  Fresh concrete is that stage of concrete in which concrete can be moulded and it is in plastic state. This is also called "Green Concrete". Another term used to describe the state of fresh concrete is consistence, which is the ease with which concrete will flow. The transition process of changing of concrete from plastic state to hardened state.