Jul 28, 2020· The fine slag powder is used as an admixture in cement and concrete production. It can replace 20%-30% of cement consumption in concrete and cement products for various purposes, which not only conforms to the development trend of energy saving and emission reduction in the building materials industry, but also achieves the goal of reusing ...

Blast-Furnace Slag as a Mineral Admixture for Concrete Finely ground slag may be blended with portland cement or added to other ingredients at the mixer. By Donald W. Lewis Download the PDF version of this article. (316.5 kB) When slag, a by-product of the iron-making process, is quenched with water and rapidly chilled, it forms a glassy ...

Introduction to Admixture: Admixtures are material used in concrete to modify its properties. The effects of using admixture depend on the properties of concrete, sometimes it is difficult to predict effect and result because of changing the cement brand, aggregate grading, mix proportions using a rich mix.

Abstract Electric furnace nickel slag was alkali-activated by sodium hydroxide and water glass to study the reaction product properties with measurements of reaction heat of the binder, the mortar compressive strength, and the morphology and structure of the reaction products.The results show that the mortar compressive strength is the greatest for a sodium hydroxide content of 5%.

Steel slag, water slag, manganese slag, nickel-iron and coal slag can be used as admixtures for concrete mixing station after grinding. The Main Uses: 1) Direct mixing of slag and Portland cement in a certain proportion in cement production can improve the performance of cement and reduce production costs and energy consumption.

utilized nickel slag as a partial substitution of cement to produce high strength concrete. The reuse of nickel slag powder (NSP) for the manufacture of new concrete is an effort to be attentive to environmental sustainability given the amount of nickel slag that has accumulated in large amounts in Southeast Sulawesi.

Various types of admixtures are used in concrete to enhance the performance of concrete. Concrete admixture is defined as the material other than the aggregate, water and cement added to the concrete. Types of Concrete Admixtures Concrete admixtures are of different types and ...

Mar 05, 2020· Alkali-activated copper and nickel slag cementitious materials (ACNCMs) are composite cementitious materials with CNS (copper and nickel slag) as the main materials and GGBFS (ground-granulated blast-furnace slag) as a mineral admixture.

COMPACTION ON COPPER SLAG WHEN ADMIXTURE IS ADDED" is the work done by us during the academic year 2011-2012 and is submitted in partial fulfilment of the requirements for the award of degree of bachelor of technology in CIVIL ENGINEERING from JNTU, Hyderabad. ...

Mar 15, 2020· The water-to-cement ratio used in this research was 0.35. Nickel slag was used as sand replacement a with the proportions of 0%, 10%, 20%, 30%, 40%, and 50% by weight. Due to the different specific gravity between sand and nickel slag, in which nickel slag is heavier than sand, the total volume of concrete containing nickel slag will decrease.

This invention concerns the use of lithium-bearing additives in concrete or mortar. Such additives are obtainable by a high temperature process wherein lithium-bearing materials such as scrapped lithium-ion batteries are smelted. More particularly, lithium-bearing metallurgical slag is presented as an additive for reducing the undesired ASR (alkali-silica reaction) in concrete or mortar.

Types of Admixtures Used in Concrete. Here, we are discussing 15 Different types of admixtures used in concrete are as follows. 1. Water Reducing Admixture. Water-reducing Admixture, the name itself defines that they are used to minimize the demand for water in a concrete mix. Workability is the important property of concrete, which is improved ...

Also, Great Wall Machinery has constructed the first 600,000 t/a slag grinding line in this industry, with a waste slag( like blast furnace slag,Steel slag and nickel slag) analysis center .With the rich industry experience and advanced technology, Great Wall Machinery can provide the qualified turnkey service from research report, raw materials analysis, designing, equipment manufacturing ...

3.4 Water Reducing Admixture or Workability Aid An admixture which either increases workability of freshly mixed mortar or concrete without increasing water content or maintains workability with a reduced amount of water. 3.5 Air-Entraining Admixtures An admixture for concrete or mortar which causes air

Jun 29, 2020· The raw materials for the test include nickel slag, cement, a solid alkali activator, standard sand, water, citric acid, and water reducer. The particle size of the undisturbed water-quenching nickel slag used in the test was about 3-4 mm. The Blaine surface area and specific gravity are 425 m 2 /kg and 3.02, respectively.

Apr 01, 2019· Pozzolanic or Mineral admixtures are basically derived from other substances, not chemically manufactured. Popular examples of mineral admixtures are silica fume, fly ash, blast furnace slag etc. Mineral admixtures have different roles to play in the concrete mix and enhance various properties of the concrete.

s. Using industrial waste residue as concrete mineral admixture has become a direction of the development of the green concrete. Nickel slag is mainly introduced, and the chemical composition and preparation of nickel slag powder, and study its physical properties, activity, volume stability and mechanical properties. According to nickel slag powder admixture amount of replacing cement ...

Blast-furnace slag as a mineral admixture for concrete Water-granulated blast-furnace slag has the consistency of sand, and must be finely ground for use as a cementing material in concrete. Actual dimension of sample shown above is about 6 inches across. t u re s. Similar applications began in the United Ki n g d o m

ISACONVERT™ Nickel/PGM Converting Slag Chemistry The calcium ferrite slag system has been successfully applied to continuous copper converting technologies since the mid 1970s16. The beneficial properties of calcium ferrite slags, for copper converting, were established and outlined in the 1980s by the 17research of Yazawa -18 and Takeda19 ...

Study on Properties of Mineral Admixture Modified Copper-Nickel Slag Cementitious Materials Tingting ZHANG 1 (),Ziyu ZHOU 1,Lijie GUO 2,Zhenlin WU 1 (),Junnan HAN 1 1. Dalian University of Technology,Dalian 116024,Liaoning,China 2. BGRIMM Technology Group,Beijing 110160,China;

Equipment For Grinding Slag Powder. ... which can be used as cement admixtures to reduce cement production costs and improve the pass rate of cement stability. ... CHAENG can undertake EPC turnkey services for slag / steel slag / nickel slag / manganese slag powder production line with an annual output of 200,000-1,500,000 tons. Equipment: GRMS ...

Alkali-activated copper and nickel slag cementitious materials (ACNCMs) are composite cementitious materials with CNS (copper and nickel slag) as the main materials and GGBFS (ground-granulated blast-furnace slag) as a mineral admixture. In this paper, the activity indexes of CNS with different grinding times were studied using CNS to replace a portion of cement.

quality and replacement ratio of blast furnace slag, and curing condition. Heat of hydration of concrete containing slag powder decreases with the increase in the slag power content. Concrete containing slag as a mineral admixtures generally offers better chemical resistance due to improved watertightness, since the concrete texture

Alkali-activated copper and nickel slag cementitious materials (ACNCMs) are composite cementitious materials with CNS (copper and nickel slag) as the main materials and GGBFS (ground-granulated blast-furnace slag) as a mineral admixture. In this paper, …

A total of five f erro-nickel slag fine aggregates were examined in this study. The experiments were conducted by fixing the volumetric mixture ratio of slag 50%, except crushed air granu-lated slag used for single fine aggregates, to investigate the efficiency of chemical admixtures and the water

May 03, 2014· Physical properties. Copper slag grains have a color of black glassy type and a fineness modulus of 3.5. The hardness is about 7 Moh's scale. Other typical physical properties are given in Table 2.In order to use copper slag as a mineral admixture, it was necessary to carry out an experimental study associating grinding time, average diameter, and pozzolanic activity assessed in mortars [].

During the pyrometallurgical treatment of the nickel-bearing laterite in the plant of G.M.M. S.A. LARCO, slag is produced after treatment in electric-arc furnace (EAF) that contains 0.10 to 0.20 % Ni. Taking into account the great quantity of slag produced per year, the recovery of nickel from the EAF slag will add benefits to the entire process.

Figure 3 TG, DTG and DSC map of blast furnace of copper-nickel slag hydration of 28d . ... that along with the increase of copper slag admixture, the concrete strength decreased from these figures4-6, but the drop range is small. As the strength increases, the brittleness of concrete increases. When copper slag content is 5%,