Results 11 to 20 of about 17,379,007 (276)

Performance of alkali-activated slag concrete [PDF]

open access: yes, 2003
The environmental concerns related to the production of cement in terms of the energy consumption and the emission of CO2 lead to the search for more environmentally viable alternatives to cement.
Al-Otaibi, Saud
core   +6 more sources

Phosphorus removal in passive treatment technologies for tertiary wastewater treatment [PDF]

open access: yes, 2014
The treatment of phosphorus at small sewage works requires alternative approaches to the traditional chemical precipitation and biological removal pathways, as such approaches do not align well to the requirements at such a scale in relation to the use
Letshwenyo, Moatlhodi Wise
core   +7 more sources

Development of high performance concrete using combinations of mineral admixtures. [PDF]

open access: yes, 1995
Cement replacement materials are by-products used to produce high performance concrete. Published data on the effects of combinations of mineral admixtures in concrete on the microstructural and performance-related properties under different ...
Darwish, Abdulhanan A., Darwish, A.
core   +6 more sources

Study on compatibility of fresh cement paste mixed with modified coal gasification slag and superplasticizer

open access: yes矿业科学学报, 2021
Coal gasification slag is a kind of solid coal chemical waste which mainly contains aluminosilicate minerals.The gasification slag modified by mechanical grinding and chemical excitation can be used as active admixture of composite Portland cement, which
Zhang Ming   +5 more
doaj   +1 more source

Sludge Gasification Using Iron Bearing Metallurgical Slag as Heat Carrier: Characteristics and Kinetics

open access: yesEnergies, 2022
Waste heat recovery is a key problem to be solved for metallurgical slag. Furthermore, the heat source is a current bottleneck for sewage sludge gasification technology. At present, there is no complete process system for the thermochemical conversion of
Zongliang Zuo   +6 more
doaj   +1 more source

Study on Recovery of Valuable Metals in Spent Lithium-Ion Batteries by Al2O3-SiO2-CaO-Fe2O3 Slag System [PDF]

open access: yesArchives of Metallurgy and Materials, 2021
This study investigated the recovery behavior of valuable metals (Co, Ni, Cu and Mn) in spent lithium ion-batteries based on Al2O3-SiO2-CaO-Fe2O3 slag system via DC submerged arc smelting process.
Tae Boong Moon   +6 more
doaj   +1 more source

Research on the Metallurgical Properties of Fluorine-Containing Refining Slag and Its Fluoride-Free Design [PDF]

open access: yesTeshugang
In view of the large use of calcium fluoride in LF refining process, an optimization scheme of fluorine-free refining slag system is proposed.Calculated by FactSage software, the optimal composition of the fluorine-free refining slag was determined to be:
Li Haozhe, Jin Jinwen, Gao Fang, Gu Chao, Bao Yanpin, Wei Ze
doaj   +3 more sources

Ladle Steel Slag in Activated Systems for Construction Use [PDF]

open access: yesMinerals, 2020
The construction industry needs to reduce greenhouse gases, in which cement production is currently responsible for generating between 4% and 6% of the total CO2 released into the atmosphere. Similarly, many industries produce large amounts of solid waste, which often have low value-added applications or are directly taken to landfills, with consequent
Aponte Hernández, Diego Fernando   +3 more
openaire   +2 more sources

Influence of ESR Slag on Cleanness of GCr15 Bearing Steel

open access: yesTeshugang, 2022
In accordance with the current in electroslag remelting(ESR)GCr15 bearing steel D inclusions exceeding the standard problem,the different slag systems are designed,and respectively with the help of Factsage software and empirical formulae to calculate ...
肖爱平   +4 more
doaj  

Steel-Slag as Aggregate Substitute’s Influence to Concrete’s Shear Capacity An Experimental Approach [PDF]

open access: yes, 2008
The use of steel slag as a substitute to natural aggregates for concrete increases the compression strength and workability of fresh concrete mixes.
Ay Lie , Han, Narayudha, Moga
core   +1 more source

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