Stability of basalt fibers in a medium of hydrated cements

The stability of basalt and aluminoborosilicate fibers of different diameters under the influence of an alkaline medium of hydrating cements (concretes) has been investigated. Kinetic dependences of absorption by CaO fibers from a saturated solution of Ca (OH) ₂ are given. The general regularities of the change in the tensile strength of the fibers after holding in the specified solution for 3, 6, and 12 months have been revealed. The data obtained can be used to analyze and derive the calculated dependences of the long-term strength of basalt fiber composites based on cement matrices. Tab. 3, ill. 4, bibliography: 1 title.