Studying the effects of Sodium tripoly phosphates, Sodium hexameta phosphates, Boric acid and Borax on physical properties and low tempreture strenth by product magnesite composition

Uses of by product refractories, with quality ulmost look like product with pure material are important. In this project, make different composition with use of phosphate and borate additivies with by product magnesite base, and then do physical experiments and berezil strength. For indicates phase and microstructure use x-rey diffraction (XRD) and scaning electron microscopy(SEM). Conclusions show that composition with 5% Boric acid and 5% borax, are the best composition. Then look like that Boric acid with borax create a amurphos phase that cause to increase strength and physical properties too, already use of pure material is better but refractories mass that get from by product cause to decrease product price and is good for factory. Then all of this properties near project to until prupose for example use in gunning mass.