our products

D&Q Mining is a high-tech company integrating R&D, production and sales. It provides mature products and solutions such as crushers, sand making, milling equipment, mobile crushing stations, etc., for aggregate, mining and waste recycling.

basic oxygen furnace slag concrete

Applicability of Basic Oxygen Furnace Slag as a Concrete

Little basic oxygen slag is used as a portland cement concrete aggregate because of its unsoundness in concrete. However, soundness of basic oxygen furnace slag in concrete appears to largely depend upon the mineralogical and chemical compositions of the slag.

More

Evaluation of Basic Oxygen Furnace (BOF) material into

Jul 15, 2016· Basic Oxygen Furnace (BOF) slag has many prismatic angles, is massive, and has a high hardness that meets the requirements of the aggregate used in asphalt concrete. BOF has a higher proportion of CaO but a lower proportion of SiO 2 than natural (gravel) aggregate (NA) because CaO is a lipophilic molecule while SiO 2 is a hydrophilic molecule

More

(PDF) Modification of Basic Oxygen Furnace Slag for Cement

The use of steelmaking slag without chemical modification presents a deleterious effect on cement mechanical properties, due to the expansion caused by the presence of free CaO and MgO in the slag.

More

Products and Services > Basic Oxygen Furnace Slag

Basic oxygen furnace slag at 1200℃ is poured into a shallow slag pot for initial cooling. The slag with reduced surface temperature is transported to a puddle, and then sweltered in a stockpile, which will make it disintegrate into aggregates naturally so that flattened graded aggregates can be collected.

More

Basic Oxygen Furnace Slag (BOFS) Graded Aggregates_CHC

Raw materials and production processes. BOFS graded aggregates are by-products of BOF steelmaking in a wholly integrated steel mill. Their main chemical compositions are CaO, SiO 2, Al 2 O 3, Fe 2 O 3, etc.The molten slag is cooled and solidified into basic oxygen furnace slag, which then undergoes crushing, magnetic separation, and screening to make BOFS graded aggregates.

More

Concrete Produced by Steel‐Making Slag (Basic Oxygen

Oct 26, 2009· A steel‐making slag (basic oxygen furnace) obtained from the Kardemir Steelworks was modified to be used as a clinker additive in the cement industry. This study confirmed that the compressive strength values of concretes produced by addition of these steel‐making slags up to 30 mass% were within the values of Grade‐325 and Grade‐425

More

Basic oxygen furnace slag Euroslag

Basic oxygen furnace slag. Basic oxygen furnace slag BOS (also called LD-converter slag)is formed during the conversion of hot metal from the blast furnace into steel in a basic oxygen furnace.In this process the hot metal is treated by blowing oxygen to remove carbon and other elements that have a high affinity to oxygen.

More

Modification of Basic Oxygen Furnace Slag for Cement

Jun 19, 2017· The use of steelmaking slag without chemical modification presents a deleterious effect on cement mechanical properties, due to the expansion caused by the presence of free CaO and MgO in the slag. This work deals with the modification of one basic oxygen furnace (BOF) slag with the objective of making it an appropriate additive in blended cement formulations.

More

(PDF) Modification of Basic Oxygen Furnace Slag for Cement

The use of steelmaking slag without chemical modification presents a deleterious effect on cement mechanical properties, due to the expansion caused by the presence of free CaO and MgO in the slag.

More

Concrete Produced by Steel‐Making Slag (Basic Oxygen

Oct 26, 2009· A steel‐making slag (basic oxygen furnace) obtained from the Kardemir Steelworks was modified to be used as a clinker additive in the cement industry. This study confirmed that the compressive strength values of concretes produced by addition of these steel‐making slags up to 30 mass% were within the values of Grade‐325 and Grade‐425

More

Basic oxygen furnace slag Euroslag

Basic oxygen furnace slag. Basic oxygen furnace slag BOS (also called LD-converter slag)is formed during the conversion of hot metal from the blast furnace into steel in a basic oxygen furnace.In this process the hot metal is treated by blowing oxygen to remove carbon and other elements that have a high affinity to oxygen.

More

Products and Services > Basic Oxygen Furnace Slag

Basic oxygen furnace slag at 1200℃ is poured into a shallow slag pot for initial cooling. The slag with reduced surface temperature is transported to a puddle, and then sweltered in a stockpile, which will make it disintegrate into aggregates naturally so that flattened graded aggregates can be collected.

More

In-situ Temperature Effects in Basic Oxygen Furnace Slag

Basic oxygen furnace (BOF) slag is a by-product of steel plants and is different from conventional natural aggregates. Studies have shown that BOF slag asphalt concrete is able to store heat.

More

Flexural Strength of Concrete by Partial Replacement of

The substitution of Basic oxygen furnace slag enhances the Flexural strength of M-25 concrete mix up to certain percentage. After adding 15% Basic Oxygen furnace slag in the mix, there is an increase of 17.67% strength after 7 days, and 17.26% increase after 28 days.

More

Basic Oxygen Furnace Slag (BOFS) Graded Aggregates_CHC

Raw materials and production processes. BOFS graded aggregates are by-products of BOF steelmaking in a wholly integrated steel mill. Their main chemical compositions are CaO, SiO 2, Al 2 O 3, Fe 2 O 3, etc.The molten slag is cooled and solidified into basic oxygen furnace slag, which then undergoes crushing, magnetic separation, and screening to make BOFS graded aggregates.

More

Recycling of basic oxygen furnace slag as a raw material

N2 The purpose of this study was to recycle basic oxygen furnace (BOF) slag in the production of autoclaved aerated concrete (AAC), and to examine the influence on the properties of AAC products. The magnetic substances in the BOF slag accounted for about 15 wt.% and the magnetic proportion increased as the particle size decreased.

More

Basic Oxygen Furnace Slag Concrete

Basic oxygen furnace slag Euroslag. Nov 24, 2020 · Basic oxygen furnace slag. Basic oxygen furnace slag BOS (also called LD-converter slag)is formed during the conversion of hot metal from the blast furnace into steel in a basic oxygen furnace.In this process the hot metal is treated by blowing oxygen to remove carbon and other elements that have a high affinity to oxygen.

More

Performance evaluation of asphalt concrete test road

Mar 01, 2015· In this study, the results of analyses of test roads constructed with conventional asphalt concrete (AC) and basic oxygen furnace (BOF)-slag-based AC pavements were compared. We provide the following conclusions: (1) BOF slag AC was better at

More

Hydration properties of basic oxygen furnace steel slag

Basic oxygen furnace steel slag is the most common steel slag in China. In this study, the hydration properties of this kind of steel slag were investigated.

More

Characterization and activation of Basic Oxygen Furnace slag

Basic oxygen furnace (BOF) slag generated during steel production exemplifies the case: considerable amounts of this material are available (an estimation of 120-240 Mt in 2016 was calculated

More

(PDF) Stabilization of basic oxygen furnace slag by hot

ConclusionsThis work has investigated the hot-stage carbonation of Basic Oxygen Furnace (BOF) steel slag, with the objective of converting its high free lime content (10-20 wt%) to calcium carbonate and stabilizing its negative properties (high basicity and heavy

More