Your browser doesn't support javascript.
loading
Performance Analysis of High-Performance Concrete Materials in Civil Construction.
Han, Yongguang; Zhou, Tianhua.
Afiliación
  • Han Y; Architectural Engineering College of Chongqing City Vocational College, Chongqing 400044, China.
  • Zhou T; School of Civil Engineering, Chang'an University, Xi'an 710054, China.
Materials (Basel) ; 16(16)2023 Aug 21.
Article en En | MEDLINE | ID: mdl-37630002
ABSTRACT
This paper develops the mechanical and durable samples of C50 high-performance concrete, studies the mechanical properties, crack resistance, sulfate attack resistance, frost resistance, and impermeability of concrete with different mineral admixtures of mineral powder and fly ash, and obtains the best mineral admixture of mineral powder and fly ash to improve the performance of high-performance concrete. The results show that the doping effect is the best when the ratio of prepared mineral powder to fly ash is 32. With the increase in the mineral powder-fly ash admixture, the slump and expansion of high-performance concrete decrease rapidly at first and then slowly. In total, 60% doping is the turning point; the compressive and flexural strengths of concrete decreased slowly at first and then rapidly. Taking 30% of the admixture as the turning point, 35% of the mineral powder fly ash is generally selected. By mixing and adding a certain proportion of fly ash and mineral powder admixtures, the crack resistance of concrete is enhanced, and the shrinkage and cracking are reduced. The corrosion resistance coefficient will exceed 88%, the relative dynamic elastic modulus will exceed 95%, and the impermeability grade will reach P17. The durability of concrete can be improved by adding mineral admixtures.
Palabras clave

Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Materials (Basel) Año: 2023 Tipo del documento: Article País de afiliación: China

Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Materials (Basel) Año: 2023 Tipo del documento: Article País de afiliación: China