Interaction between low-grade magnesium oxide and boric acid in chemically bonded phosphate ceramics formulation
Source abstract
Abstract
Abstract A hard-burner low-grade MgO (LG-MgO) is used to formulate a chemically bonded phosphate ceramic (CBPC) instead of pure MgO. This by-product is 10 times cheaper than pure MgO. The use of this by-product reduces the cost of the final material and therefore an economical construction material could be obtained. This would reinforce the criteria of sustainability and recyclability. In addition, the inert phases contained on LG-MgO act like inorganic fillers, improving the mechanical properties of this CPBC, which can be considered as a mortar. A range from 55% to 65% of LG-MgO is studied, and boric acid is added in order to improve workability and setting times. Design of Experiments (DoEs) approach enabled the evaluation of the influence of each component and the interactions between them. According to the setting times and compressive strength results, a formulation range is proposed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Oxide Properties and Applications · Recycling and utilization of industrial and municipal waste in materials production · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. New strong cement materials: chemically bonded ceramics10.1126/science.235.4789.651 ↗
2. Stabilization of rocky flats Pu-contaminated ash within chemically bonded phosphate ceramics10.1016/S0022-3115(98)00650-3 ↗
3. Effect of heavy metals and water content on the strength of magnesium phosphate cements10.1016/j.jhazmat.2009.04.091 ↗
4. Leaching behaviour of magnesium phosphate cements containing high quantities of heavy metals10.1016/j.jhazmat.2009.10.077 ↗
5. Advances in encapsulation technologies for the management of mercury-contaminated hazardous wastes10.1016/j.jhazmat.2004.08.010 ↗
6. Immobilization of radioactive wastes by embedding in phosphate ceramic10.1023/B:ATEN.0000027880.04363.d6 ↗
7. Properties and applications of magnesia-phosphate cement mortar for rapid repair of concrete10.1016/S0008-8846(00)00419-1 ↗
8. Property evaluation of magnesium phosphate cement mortar as patch repair material10.1016/j.conbuildmat.2009.10.039 ↗
9. Chemically bonded phosphate ceramics: a dissolution model of formation10.1111/j.1151-2916.2003.tb03569.x ↗
10. Jeong · 2002
11. Wagh · 2004
12. The hydration of magnesium phosphate cements: effect of powder characteristics on the reaction kinetics10.4028/www.scientific.net/MSF.591-593.833 ↗
13. Phosphate cement-based fast-setting binders
14. The crystal structure of lunebergite, Mg3(H2O)6[B2(OH)6(PO4)2]
15. Removal of ammonium and phosphates from wastewater resulting from the process of cochineal extraction using MgO-containing by-product10.1016/S0043-1354(02)00526-2 ↗
16. Optimization of phosphate removal in anodizing aluminium wastewater10.1016/j.watres.2005.10.033 ↗
17. Chemically bonded cements formulated with by-products of magnesium oxide10.3989/cyv.2008.v47.i5.169 ↗
18. Optimization of wastes content in ceramic tiles using statistical design of mixture experiments10.1016/j.jeurceramsoc.2008.05.007 ↗
19. Optimization of feedstock properties for reaction-bonded net-shape zircon ceramics by design of experiments10.1016/j.ceramint.2009.07.003 ↗
20. Montgomery · 1991
21. Niubó · Mater. Sci. Eng. A · 2011 · 528 · 443710.1016/j.msea.2011.02.006 ↗
22. Shand · 2006
23. The effect of calcining conditions on the rehydration of dead burnt magnesium oxide using magnesium acetate as a hydrating agent10.1007/s10973-005-0710-x ↗
24. The effect of water content on the structure and properties of magnesia-phosphate cement (MPC) mortar10.1111/j.1151-2916.1998.tb02515.x ↗
25. Thermal study of low-grade magnesium hydroxide used as fire retardant and in passive fire protection10.1016/j.tca.2010.12.018 ↗
26. The effect of retarders on the microstructure and mechanical properties of magnesia-phosphate cement mortar10.1016/S0008-8846(00)00501-9 ↗