RECOMMENDATIONS FOR THE SELECTION OF MODERN BUILDING MATERIALS FOR USE IN THE RESTORATION OF HARD AIRFIELD SURFACES IN CONDITIONS OF ARMED AGGRESSION

Abstract

In the course of hostilities (especially of high intensity), the Armed Forces of Ukraine will inevitably suffer certain losses of airfields. As a result of the bombing, the hard airfield surfaces were damaged, which hinders the reliable operation of aircraft. As a result, hard airfield surfaces needed restoration, and for this, materials with very strict requirements must be used. In recent years, modern modified structural materials have been offered in Ukraine, which make it possible to significantly reduce the recovery time: if the work is properly organized, the time can be no more than 7–10 days, provided that the required strength values are met characteristics – in compression, and in tension they are fully achieved. The consequence is a slight interruption of flights at the airfield, which is very relevant in the conditions of hostilities.
 The main factors affecting the destruction of hard airfield surfaces in peacetime are natural influences, as well as loads during take-offs and landings of aircraft. Among the operational factors, mechanical effects, as well as the force and the temperature effects of the gas jet of aircraft jet engines should be singled out. If any damage to the runway surface, measures must be taken to eliminate it immediately, otherwise there is a risk of accidental damage and closure of the runway for long-term repairs. But in case of detection of malfunctions that threaten the safety of flights, they are eliminated immediately before the start of flights. This is a very important point in the operation of hard airfield surfaces: it determines the need to use such materials for the restoration of runways, which in the shortest possible time acquire the necessary values of the operational characteristics of hard concrete surfaces.
 A wide variety of materials can be used for repair work, but if there are two limitations – the period before the start of operation and the duration of the work, then it is most appropriate to use modern materials. Such repair materials must meet the requirement: the strength of the materials must provide a load-bearing capacity no less than the existing airfield pavements and meet the requirements.