lead to pavement cracking (Ameri & Behnood, 2012). A comparison of some of the properties of steel slag with natural aggregate is shown in Table 2. Test results have shown that, EAF steel slag is preferred in high stressed areas where conventional materials have failed (Kehagia, 2008). This is largely due to its advantageous technical properties
Nonetheless, there have been reported uses of nonferrous slag as an aggregate substitute in hot mix asphalt and granular base applications. Asphalt Concrete Aggregate. Phosphorus, copper, and nickel slags have been used as aggregate substitutes in hot mix paving. ... Lead Slag: Lead-Zinc Slag: SiO 2: 36.6: 29.0: 41.3: 35.0: 17.6: Al 2 O 3: 8.1:
The technical properties of cement mortars containing natural fine aggregate that is replaced by lead blast furnace slag at 25 and 35% level were assessed at fixed water-to-cement (W/C) ratio and at fixed flow table value. The leachabilities of some toxic elements from the cement mortars were also assessed to test the environmental suitability of the slag for use …
Scunthorpe and Teesport that can produce aggregate, asphalt and concrete products containing slag. Ag Slag production Agricultural slag, or Ag Slag, is a fine-screened material from the processing of Basic Oxygen Steel (BOS) slag. BOS (also called LD-converter slag) is formed during the conversion of hot metal from the blast furnace into
The rows are sorted by the column specified in ORDER BY (sale_value).The LEAD() function grabs the sale amount from the row below. For example, Stef's own sale amount is $7,000 in the column sale_value, and the …
Morrison et al. (2003) presented how the usage of ISF slag as fine aggregate retards the cement hydration process. This was accomplished by monitoring temperature changes of concrete specimens for period of 10 days. ... Use of Granulated Slag from Lead and Zinc Processing in Concrete Technology. Cem. Concr. Res., 26 (1996), pp. 1381-1388, 10. ...
Secondary lead slag, a waste product from battery smelting using CaCO 3 as flux, has been investigated for its use as an admixture and/or aggregate in the production of concrete blocks. The slag was added as partial replacements of cement and/or aggregate. The results revealed that the oxide components of the slag were similar to those of ordinary …
The addition of lead slag to the concrete showed an obvious increase in density by increasing the ratio of lead slag to the total fine aggregates from 5 to 30 %, Fig. (2). This is due to the high density of lead slag. It is also clear that the value of a% and n% decrease with the increase of …
The dependence of concrete properties with slag (10%, 20%) and additive (MgO, CaO, Ba(OH)2, CaSO4∙CaO) on the properties of concrete has been studied by measuring the compressive strength and lead leachability by TCLP method.
Certain researchers have affirmed that lead slag can be used successfully as an aggregate for road construction and concrete owing to its favorable physical and mechanical properties (Alwaeli, 2017; Buzatu et al., 2015). ... Lead slag is a by-product of lead production process, mainly from two ways: lead ore smelting and waste lead-acid battery ...
@article{Baalamurugan2021RecyclingOS, title={Recycling of steel slag aggregates for the development of high density concrete: Alternative & environment-friendly radiation shielding composite}, author={J. Baalamurugan and V. Ganesh Kumar and Sangeetha Chandrasekaran and Srijana Balasundar and Balasubramanian Venkatraman and R. …
Ferrous slag is currently underutilized. Although the construction industry does use some slag as an aggregate, most is simply discarded. However, slag could be used to treat acid soils or acid mine drainage. Doing so would both offset the cost of restoring abandoned mine areas, as well as decrease steel manufacturers' current waste footprint.
Reuse of Slags Containing Lead and Zinc as Aggregate in a Portland Cement Matrix Authors: Giorgio De Angelis ENEA Franco Medici Sapienza University of Rome Abstract Both economic and environmental...
Secondary alkaline lead slag (SALS), generated during lead–acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. ... 32.5 R], fine aggregates (limestone origin, 0–2 mm), and coarse aggregates (volcanic origin, 2–4 mm) in corresponding proportions, as presented in Table ...
The successful use of lead slag as concrete aggregate depends on meeting these three criteria. For this purpose, cement retention time, compressive strength, flexural and tensile strength tests as well as gamma-ray attenuation coefficients were performed on cementitious specimens with different ratios of first- and second-hand lead slag.
The results show how the utilization of BOF slag as coarse aggregate in road construction improves the technical performance of asphalt mixtures (Marshall Quotient 4.9 vs. 6.6). Moreover, the introduction of BOF slag into the asphalt mix as a coarse aggregate, instead of limestone, causes a carbon emissions reduction rate of more than 14%.
