Generation of lead slag. Lead slag is a by-product of lead production process, mainly from two ways: lead ore smelting and waste lead-acid battery recovery (Ettler …

Lead smelting slag (LSS) is a hazardous waste containing heavy metals (Cr, Ni, Cu, Zn, As, and Pb) and its improper disposal may cause irreparable damage to the ecosystem. Cementitious materials prepared with LSS can be used in construction fields and hazardous heavy metals are also solidified in prepared cementitious materials.

The chemical composition of copper slag varies with the type of furnace. The typical composition of smelting slags is Fe (as FeO, Fe 3 O 4) 30–40%; SiO 2 35–40%; Al 2 O 3 up to 10%; and CaO up to 10%. The density of copper slag varies between 3.16 and 3.87 g/cm 3 based on the amount of iron content. The average specific gravity of copper ...

(9;10) To improve grain size distribution characteristics of bottom ash or boiler slag, a conventional aggregate or a slag aggregate may be blended with the ash. Specific Gravity: The specific gravity of bottom ash is in the …

An innovative material that the current research has introduced to be used as a heavy coarse aggregate in HPC is "lead slag", lead slag has been converted from a subsidiary industrial and environment polluting waste to a very valuable material as one of the ingredients of heavy concrete. It was found that, the magnetite and lead slag ...

Steel slag, copper slag, lead-zinc slag, and electric furnace ferronickel slag are the most common metallurgical slags that could be used as supplementary …

Mix Aggregates Replacement ratio (%) Cement (kg) Natural sand (kg) Steel slag aggregate (kg) Natural coarse aggregate (kg) Water (kg) NAC NA 0 414 676 0 1102 213 ASAC-30 ASA + NA 30 414 676 390 ...

Non-ferrous metal-smelting slag includes copper slag, lead slag, zinc slag, and nickel slag. Red mud is the waste residue of alumina extraction from bauxite. ... Yang et al. prepared artificial steel slag aggregate by an accelerated carbonization method, using ethylenediamine tetra-acetic acid (EDTA) as a catalyst. Their experimental results ...

Lead smelting slag / lead smelter slag constitutes both the primary and secondary slags from the lead extraction industry [4], ... Retardation of cement hydration caused by heavy metals present in ISF slag used as aggregate. Cem. Concr. Compos., 30 (2008), pp. 970-978, 10.1016/j.cemconcomp.2008.07.005. View PDF View article View in …

W. Shen et al. (2020) used carbonated steel slag powder as cementitious material, crushed steel slag as aggregate and phosphogypsum as an additive to prepare pervious concrete. The compressive strength of the prepared pervious concrete reached 9.4 MPa, which had a porosity of more than 20% to ensure good water permeability.

In road construction, there is a heavy metal industry waste suitable as a substitute: lead slag. Primary and secondary lead slag can be turned both in fine and …

Investigations on the application of slag produced in the smelting of copper, lead, zinc, nickel and tin indicate that some solid wastes from these metal industries have …

Even the effect of lead slag as fine aggregate on the mechanical properties of concretes varies in different research: according to Mosavinezhad et al., results of the compressive strength of lead slag specimens at 28 days of curing "was 1% lower than those of the conventional concretes".

This is mainly due to lead-slag aggregate has the highest iron content, and the iron has a suitable scattering cross-section. The results also indicated the removal of the cross-section (ΣR) of the fast neutrons for the heavy concrete mixes increase by 9% and 10% upon replacing fine sand by the fine aggregates of lead-slag and magnetite ...

Concrete is the most produced construction material in the world and has a close tie to carbon dioxide emissions. To reduce the gas pollution and resource drain of cement production and utilization, researchers have replaced some of the cement and natural aggregate content with industrial by-products such as steel slag, ferronickel …

Slag aggregates are obtained by crushing of smelter slag or by special treatment of fire-liquid slag melt (molten slag aggregates). Currently there are many types of concrete …

Download Table | Characteristics of the granulated lead slag secondary aggregate and the sand aggregate from publication: Utilization of granulated lead slag as a structural material in roads ...

TMS International is the North American leader in slag processing and metal recovery. Our pioneering technologies process slag, a product of steelmaking, into useful environmentally beneficial aggregate products. Applications include road construction, asphalt, ready-mix concrete, cement, railway ballast, mining, filtration and agriculture.

MSDS: Slag Page 3 of 6 Revised: 03/01/14 Section 4: FIRST AID MEASURES Eye Contact: Rinse eyes thoroughly with water for at least 15 minutes, including under lids, to remove all particles. Seek medical attention for abrasions. Skin Contact: Wash with cool water and a pH neutral soap or a mild skin detergent. Seek medical

Industrial by-products, namely fly ash (FA) and ground granulated blast furnace slag (GGBS), were used as binders and waste-based sands, namely lead smelter slag (LSS) and waste glass sand (WGS), were used as fine aggregates in geopolymer mortars reinforced with natural fibers (i.e., 1% coir, ramie, sisal, hemp, jute and bamboo …

The study indicates that the replacement of the aggregate with lead slag from 40% to 60% resulted in a 5% increase in μ. This result is in line with a study on the effect of lead–zinc slag as a fine aggregate in RSC, which shows a 17% improvement in the μ value with the incorporation of slag .

The obtained aggregate surface is glossier and adsorbs significantly less water in comparison with air-cooled or expanded slag aggregates. Slag quenched with water, followed by grinding showed very good cementing properties and is used as a secondary cementitious binder for Portland cement or as a primary binder in alkali …

Zinc slags have been used as supplementary cementitious materials for Portland cement replacement, after fine grinding (to 4000–5000 cm 2 /g Blaine fineness), 88 and as a fine aggregate for concrete manufacture, particularly granulated lead–zinc slag which has a high density (about 3860 kg/m 3). 89 The main limitation in utilizing zinc ...

The replacement of coarse and fine aggregates with steelmaking slag found that the optimum percentage of fine and coarse aggregate was 40% and 30%, respectively ( Subathra Devi and Gnanavel, 2014). The type of steelmaking slag is not specified in the paper. Higher levels resulted in tensile strength decline.

The optimum replacement ratio of fine lead- slag was found to be 20% for coarse lead- slag aggregate concrete and 40% for gravel coarse aggregate concrete. By increasing the cement content, high ...

Studies have shown that the addition of slag to concrete mix improves both mechanical and durability properties of both fresh and hardened concrete, mainly, recycled aggregate concrete (RAC) ( Al-Jabri et al., 2009, Awoyera and Adesina, 2019). The use of slag in construction works started a long time ago.

Temperature control is the primary concern during the design and construction process of mass concrete structures. As the concrete production has an enormous negative environmental impact, the development of green mass concretes will eventually become as important as the thermal characteristics. Therefore, this paper …

In this investigation, HWHSC mixtures incorporate lead slag (LS), copper slag (CS), and steel slag (SS) as coarse aggregate. Recycled heavyweight coarse …

The concrete mix containing lead slag aggregate has higher mechanical properties and enhances the attenuation properties for fast neutrons, gamma rays and thermal neutrons than the other concrete ...

Heavyweight concrete is used to prevent harmful radiation for the construction of hospital, military, and nuclear power plants and also to increase the durability for the construction of marine concrete structures. In this research, using a combination of serpentine aggregates and lead slag, the mechanical, durability, impact resistance, and …