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Turning Black Into Gold Singapore Copper Slag Story It was all started in early 2007 when Indonesia banned sand exports over environmental concerns. Construction was hit hard by the skyrocketing prices resulting from concrete supply disruptions due to unavailability of sand.

investigate the performance of copper slag in self- compacting concrete as partial replacement of fine aggregate. Therefore, it is recommended that 40% of copper slag can used as replacement of sand in order to obtain HPC with good strength and durability properties.

Waste as meaningful substitute for natural sand 16th July 2009 14th March 2016 Today, the use of Washed Copper Slag (WCS) as a substitute for sand in the production of concrete is widespread in Singapore with the majority of the Ready Mixed Concrete companies using it.

Magazine of Concrete Research Use of copper slag and washed copper slag as sand in concrete: a state-of-the-art review Lye, Koh, Mangabhai and Dhir Offprint provided courtesy of

How is copper slag used for construction? - Quora. Apr 19, 2018· Copper slag can be used in concrete production as a partial replacement for sand. Copper slag is used as a building material, formed into blocks. Copper slag also has a high strength-to-weight ratio, making it an effective option in concrete, or as a fill material under the roadway.

Copper slag as fine aggregate for high performance concrete K. S. Al Jabri Department of Civil and Architectural Engineering, Sultan Qaboos University, Sultanate of Oman Abstract This paper presents results from an experimental investigation carried out to

Performance Characteristics of Copper and Coal Slag Abrasives By John Peart, and Benjamin Fultz, Bechtel Corporation Abrasives processed from slags have replaced silica sands in many steel fabrication shops because of their low free silica content. Copper smelters and coal-fired electric generating plants are 2 major material sources for

• Concrete using Ground Granulated Blast Furnace Slag and OPC • Non-structural Concrete using Washed Copper Slag/Recycled Aggregates • Ultra High Performance Concrete of above 100mpa • High Density Concrete • Light Weight Concrete • Pavement Quality Concrete • Shotcrete • Colored Concrete • Temperature Controlled Concrete

The approach developed in this study may provide guidance to Singapore's Building and Construction Authority (BCA) in quantifying major environmental impacts of high-performance concrete mixes with copper slag as well as other alternative materials that can replace aggregates.

It has been observed by them that addition of copper slag improved the density of the concrete together with rapid increase in the workability. Also, they have noted that up to 40% replacement of fine aggregate by copper slag would yield High Performance Concrete with good strength and durability.

silicate hydrate, which eventually densifies the interfacial transition zone, thereby improving the performance of concrete. (Moura et al., 2007) Utilized industrial waste, including fly ash, ground granulated blast furnace slag, silica fume, and copper slag, which could function in a similar manner as cement. (Poon et al., 2000) An

Hi. Copper slag is used in High Performance Concrete. By using the copper slag in concrete as the partial replacement for fine aggregate i.e., sand, the ...

In an eco-concrete prototype developed by a ready-mix concrete supply company, Holcim (Singapore) Pte Ltd, recycled aggregates from demolition waste were used to replace of the natural coarse aggregates while washed copper slag substitute 70% of the natural sand component.

use of copper slag for fine aggregate in concrete specimens. 3. To inspect the performance of concrete made with copper slag as replacement of fine aggregate. 4. To evaluate the compressive, tensile and flexural strength of concrete by using copper slag in concrete specimens. 3. MATERIALS USED 3.1. Cement:

This research was undertaken to study the effect of copper slag (CS) and cement by-pass dust (CBPD) addition on concrete properties. In addition to the control mixture, two different trial mixtures were prepared using different proportions of CS and CBPD.

Jun 12, 2015· Copper slag (CS) and washed copper slag (WCS), as to be expected, have essentially similar basic physical (although WCS is usually finer than CS) and chemical characteristics and therefore they can be treated as one material. In-depth analysis of 2192 test data sourced from the literature showed that, given all the basic material ...

Copper slag as sand replacement for high performance. It is recommended that 40 wt% of copper slag can be used as replacement of sand in order to obtain HPC with good properties.6. It should be noted that further research work is needed to explore the effect of copper slag as fine aggregates on the properties of concrete with different cement ...

While there are many applications and benefits of slag cement, a few are highlighted below and detailed information sheets are located here. The use of slag cement has demonstrated long-term performance enhancements allowing designers to reduce the environmental footprint of concrete while ensuring improved performance and increased durability.

performance of copper slag on strength properties as partial replace ... research work, M25 grade concrete was used and tests were conducted for various proportions of copper slag replacement with sand of 0 to in concrete.

Eco-concrete uses recycled washed copper slag material and recycled granite to replace up to 50% of the natural aggregates used in concrete production. Copper slag is a by-product of sandblasting at shipyards and recycled granite is from demolition waste. "Star Ready-Mix supports the use of Eco-Concrete for a greener environment"

Use of copper slag and washed copper slag as sand in concrete a state-of-the-art review. Chao Qun Lye, Siew Kiang Koh, Raman Mangabhai, Ravindra K. Dhir ... CS/WCS can be used as the sand component for making all strength grades of concrete and giving similar (or in some aspects better) performance to the corresponding concrete made with ...

Use of copper slag and washed copper slag as sand in concrete: A state-of-the-art review Article (PDF Available) in Magazine of Concrete Research 67(12):665 - 679 · June 2015 with 1,108 Reads

Jan 27, 2017· Concrete was made with a mix design of 1:1.5:3 (1 part cement; 1.5 parts sand and 3 parts coarse aggregate) according to British Standards guidelines for RC40 [].Two different sets of mixes were made with water/cement (w/c) ratios of 0.55 and 0.45 respectively, with the mix composition shown in Table 4.Mixes without copper slag were made to serve as control mixes.

A series of concrete mixtures were cast in cubic moulds of size nominal size 100 mm with different proportions of pulverised copper slag ranging from 0%, 2.5%, 5%, 10% and 15% replacing Portland cement. Activation of pozzolanic reactions of the pulverized copper slag using 1.5% hydrated lime by weight of Ordinary Portland cement.
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