Composition and microstructure of 20-year-old ordinary Portland cement
The morphology of outer-product (Op) C–S–H in 20-year-old slag–cement pastes appeared in most blends to be finer than at younger ages. The Ca/Si and Ca/(Si + Al) ratios of the Op C–S–H decreased with increasing slag content, and the Al/Si ratio increased.The Ca/Si ratio of C–S–H in the slag-containing pastes was lower at 20 years …
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Effect of fineness and particle size distribution of granulated …
This paper presents the results of an investigation into the influence of fineness and particle size distribution of granulated blast-furnace slag (GBFS) on its hydraulic reactivity in cement systems. The GBFS was separated into different fineness classes by grinding and/or air separation. The particle size distributions were determined …
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Partial Replacement of Portland Cement by Granulated Cupola Slag
Granulated Slag (FGS) as a Partial Substitute o f Cement in Concrete; Materia, vol.1 4, , Rio de Janeiro. Horst, S. (2001) . Some Basics abo ut Substituting Pozzola ns for Portland Ce ment in ...
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Slag Cement
Slag cement, originally known as granulated blast-furnace slag, begins with the production of iron. The heart of the process is the blast furnace that refines iron ore into iron. The ingredients are heated to nearly 1500 degrees Centigrade to form two components: iron and molten slag. The iron is used to produce steel, and the molten …
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Preparation and hydration process of copper slag-granulated …
1. Introduction. As the cumulative amount of industrial solid wastes (ISWs) containing aluminosilicate components exceeds billions of tons [1], ISWs have been regarded as perfect candidates for replacing cement in concrete production.ISWs, such as granulated blast furnace slag (GBFS), fly ash, steel slag, and copper slag (CS), are …
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Strength and durability of fiber reinforced concrete with partial
To assess the efficiency of Ground Granulated Blast Furnace Slag (GGBS) as a partial substitute for cement and to improve the tensile and flexural strengths and serviceability of concrete, all tests are carried out according to Indian standard codes. ... Utilization and efficiency of ground granulated blast furnace slag on concrete …
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Study on properties of concrete using slag as partial …
The current paper study's major goal is to examine the strength of the concrete when Ground Granulated Blast Furnace Slag (GGBS) is used to partially replace cement. …
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(PDF) Durability Properties and Microstructure of Ground Granulated …
Ground granulated blast-furnace slag (GGBS) is a green construction material used to produce durable concrete. The secondary pozzolanic reactions can result in reduced pore connectivity; therefore ...
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Slag Cement and Concrete Pavements
Slag cement—commonly referred to as ground granulated blast-furnace slag, or GGBFS— is a hydraulic cement that works synergistically with portland cement to improve the strength and durability of concrete pavements. Slag is a byproduct of processing iron ore to iron and steel in a blast furnace. Molten slag, which floats on the top of the ...
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Why Slag Cement? | SCA
Slag cement is a hydraulic cement formed when granulated blast furnace slag (GGBFS) is ground to suitable fineness and is used to replace a portion of portland cement. It is a …
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Ground Granulated Blast Furnace Slag (GGBS) | Chemical …
Ground Granulated Blast Furnace Slag concrete. GGBS hardens very slowly so it is generally used along with ordinary Portland cement in concrete. A typical combination is 50% GGBS and 50% ordinary Portland cement. But percentages of 20 to 80 are commonly used. Greater the percentage of GGBS, greater will be the effect of …
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Slag Cement: The Other SCM
Classifies the material under three categories: Grade 80, Grade 100, and Grade120. The grade classification refers to the relative strength of mortar cubes using the slag SAI test with a 50% replacement of OPC with a standard reference cement. 75% of the Control 28-day strength = Grade 80.
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What is Portland Slag Cement (PSC)? Properties, Use, …
Portland Slag Cement (PSC) is a type of cement that has gained popularity in the construction industry due to its unique properties and numerous advantages. It is a …
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Geopolymer Concrete: Enhanced the Strength of Structural …
Using industrial wastes (fly ash and ground granulated blast furnace slag) as cement substitutes can reduce the environmental impact of construction and reduce costs. A few experimental combinations with different mix ratios were developed, and novel and challenging properties were investigated. All the studied samples had strong …
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(PDF) Effect of partial replacement of cement by ground granulated …
[Show full abstract] granulated blast-furnace slag was 30, 50, or 70%, the ratio of water to the cement plus ground granulated blast-furnace slag 35, 45, or 55%, the slump 18 ± 2.5 cm, and the ...
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Activation effects and micro quantitative
Ordinary Portland cement (referred to as cement hereafter) with a strength grade of 42.5R I and Blaine fineness of 369 m 2 /kg was produced by China United Cement Group, The slag of S75 grade produced by Shijiazhuang Quzhai Building Materials was used. The chemical compositions of the cement and slag were measured with the …
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233R-17: Guide to the Use of Slag Cement in Concrete …
GUIDE TO THE USE OF SLAG CEMENT IN CONCRETE AND MORTAR (ACI 233R-17) cement and granules are also being imported from various countries into the United States. According to Van Oss (2015), 7,600,000 Mg of iron blast-furnace slag was produced in the United States in 2013; 2,300,000 Mg of that being granulated, and 5,300,000 Mg air …
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[PDF] USE OF GRANULATED BLAST FURNACE SLAG AS FINE AGGREGATE IN CEMENT
This paper investigates the possibility of utilizing Granulated Blast Furnace Slag (GBFS) as a sand substitute in cement mortar, in order to reduce environmental problems related to aggregate mining and waste disposal. In this investigation, cement mortar mix 1:3 and GBFS at 0, 25, 50, 75 and replacement to natural sand for constant w/c ratio of …
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Short-term experimental data of drying shrinkage of ground granulated …
This paper presents results of laboratory testing of unrestrained drying shrinkage during a period of 154 days of different concrete mixtures from the Brazilian production line that utilize ground granulated blast-furnace slag in their compositions. Three concrete mixtures with water/cement ratio of 0.78(M1), 0.41(M2), and 0.37(M3) …
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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 …
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(PDF) Design of Self-Compacting Concrete with Ground Granulated Blast
Ground granulated blastfurnace slag (GGBS), a byproduct of iron manufacturing process, has been increasingly used for partial or full replacement of cement [11, 17, 42]. Due to the slow hydration ...
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Effect of carbon dioxide mineralization curing on
To investigate the synergistic effects of steel slag (SS) and granulated blast furnace slag (GBFS) on cementitious systems during carbon dioxide (CO 2) mineralization curing.Ternary paste specimens containing SS, GBFS, and Portland cement (PC) were prepared to analyze the influence of drying pre-treatment time and SS–GBFS mixing …
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Comparison of reactive magnesia- and carbide slag …
In this study, reactive magnesia (MgO)- and carbide slag (CS)-activated ground granulated blastfurnace slag (GGBS) were used to stabilise a natural soil in comparison to Portland cement (PC). X-ray diffraction (XRD), scanning electron microscopy (SEM), and unconfined compressive strength (UCS) test were employed to investigate …
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FAQs | SCA
Slag cement, when used as a separate component in a concrete mixture, is specified through ASTM C 989 Specification for Ground Granulated Blast-Furnace Slag for Use in Concrete and Mortar. When used as a component in blended cement, one of two specifications are used: ASTM C595, Specification for Blended Hydraulic Cements or …
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Effect of coral powder and ground-granulated blast‑furnace slag …
Coral wastes are produced during the construction of island. The use of coral wastes in concrete is beneficial to economy and environment. Coral waste as aggregate in concrete has been studied well. Now, coral powder (CP) as mineral admixture to replace cement partially in concrete is a different approach to reuse coral waste. However, the …
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233R-17: Guide to the Use of Slag Cement in …
The use of slag cement as a cementitious material dates back to 1774, when a mortar was made using slag cement in combination with slaked lime (Mather 1957). In 1862, a granulation process was proposed to facilitate removal and handling of iron blast …
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Study of dissolution parameter of ground granulated blast furnace slag
1. Introduction. Ground Granulated Blast Furnace Slag has been widely used as Supplementary Cementitious Material (SCM) and extensive research has also been conducted on it [9], [21], [26].Till now, the conventional method of mixing has been followed by adding GGBS to cement and sand [8], [10], [15].The current study aimed at changing …
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Microstructure and Durability of Ground Granulated Blast Furnace Slag
Ground granulated blast furnace slag is an eco-friendly material with regard to its production process and usage. In this study, slag cement (SC) is used to prepare different slag cement mortar (SCM) mixes to study mortar microstructure perspectives, physiochemical properties, mechanical properties and durability …
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Blast Furnace Slag Cement: Production, Properties and …
Production of blast furnace slag cement. Ground granulated blast furnace slag is the glassy material formed from molten slag produced in blast furnaces as an industrial by-product from the production of iron used in steelmaking. As shown in the following figure, molten slag is collected and to transform the molten slag into a …
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Evaluation of the suitability of ground granulated silico-manganese
For more than a century, the successful performance of granulated blast furnace slag (GBFS) in Portland slag cement (PSC) has established it as a resource material [1], [2] and now it is a priced commodity in many countries. This has driven the cement industry to look for cheaper alternatives with properties comparable to GBFS.
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