Portland cement is the basic ingredient of concrete Concrete is formed when portland cement creates a paste with water that binds with sand and rock to harden Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients
An evaluation of the Itakpe iron ore tailings (IOT) for concrete production has been carried out using the material to replace sand and cement, in proportions of 5 % up to 30 %, and curing for periods 90 days in water Characterization of the material showed that it has pozzolanic properties, and can be used as a retarder for hot-weather concreting
Artificial sand manufacturing process and equipment for sale - SBM Our sand production line mainly consists of vibrating feeder, jaw crusher, sand,1 heavy-duty design and rigorous testing means , and rocks, such as iron ore, non-ferrous metal ore, corundum, bauxite, quartz sand, ,It is widely used in a variety of fields such as minerals, cement, sand, metallurgical and other industri
Their results showed comparable results between the concrete with iron ore tailing less than 40% and the control concrete Results from this study and from studies by others referenced in this introduction showed that there are advantages to concrete when granite powder is used to partially replace sand in the concrete mix
The objective of this study is to evaluate the modified performance of concrete with mixing of iron ore tailings in order to solve the shortage of natural sand and make full use of industrial waste Firstly, the raw materials of mixing were analyzed, and the test ratio was determined Secondly, the workability and mechanical property of concrete specimens with different amounts of iron ore .
Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, (3 CaOSiO 2, and 2 CaOSiO 2), the remainder consisting of aluminium- and iron-containing clinker phases and other compounds
Evaluation of iron ore tailings as replacement for fine aggregate in concrete , concrete with iron ore tailings and manufactured sand as ﬁne , Nigeria as concrete material, .
The mix with only sand as fine aggregate served as the control mix, while sand was replaced in the other mixes by 20%, 40%, 60%, 80% and 100% iron ore tailing (IOT) Consistency and Strength test were conducted on both concrete specimens It was observed that concrete workability reduced with increase in the percentage of iron ore tailing in .