Improving the reliability of road materials based on micronized sulfur composites

International Scientific Conference of Young Scientists: Advanced Materials in Construction and Engineering

材料科学;土木建筑工程;工业技术

Abdrakhmanova, K.K.^1

Kazakh National Technical University, Department of Technology of Building Materials and Construction, Almaty

050013, Kazakhstan^1

关键词: Aggressive medium;    Chrysotile asbestos;    Mechanical loads;    Operation conditions;    Polymorphic transformation;    Reinforced composites;    Structural modifications;    Sulfur composites;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/71/1/012006/pdf
DOI  :  10.1088/1757-899X/71/1/012006

来源: IOP

【 摘 要 】

The work contains the results of a nano-structural modification of sulfur that prevents polymorphic transformations from influencing the properties of sulfur composites where sulfur is present in a thermodynamic stable condition that precludes destruction when operated. It has been established that the properties of sulfur-based composite materials can be significantly improved by modifying sulfur and structuring sulfur binder by nano-dispersed fiber particles and ultra-dispersed state filler. The paper shows the possibility of modifying Tengiz sulfur by its fragmenting which ensures that the structured sulfur is structurally changed and stabilized through reinforcement by ultra-dispersed fiber particles allowing the phase contact area to be multiplied. Interaction between nano-dispersed fibers of chrysotile asbestos and sulfur ensures the implementation of the mechanical properties of chrysotile asbestos tubes in reinforced composite and its integrity provided that the surface of chrysotile asbestos tubes are highly moistened with molten sulfur and there is high adhesion between the tubes and the matrix that, in addition to sulfur, contains limestone microparticles. Ability to apply materials in severe operation conditions and possibility of exposure in both aggressive medium and mechanical loads makes produced sulfur composites required by the road construction industry.