Lithuania, like other countries, faces the problem of accumulating hard-to-use glass waste. Using this waste in the concrete industry could help solve the waste glass utilisation problem and reduce the amount of natural sand used in cement composites. Unfortunately, crushed glass reduces resistance to alkali-silica reactions. Alkali-silica reaction is one of the main reasons for the decay of cement composites, which leads to the cracking of structures and the pitting of surfaces. Alkali-silica reaction requires moisture and heat. The probability of this reaction is reduced by using low-alkaline cements, selecting aggregates uncontaminated with reactive particles, and adding various active mineral additives. The doctoral dissertation aims to develop a cement composite resistant to the alkali-silica reaction by recovering the maximum amounts of crushed and milled waste glass and metakaolin and using them to replace cement and sand in the composite mixture. The dissertation consists of an introduction, three chapters, general conclusions, a bibliography and a list of the author’s publications on the dissertation topic. The introductory chapter discusses the research problem and the relevance of the research work, describes the research object, formulates the aim and objectives of the research work, describes the research methodology, the scientific novelty of the work, the practical significance of the results, and defended statements. At the end of the introduction, the author’s publications and conference papers on the topic of the dissertation are presented, as well as the structure of the dissertation. The first chapter reviews the literature on the topic. It describes research on the use of waste glass and metakaolin in the production of cement composites and the processes of waste glass treatment and metakaolin extraction. This chapter explains the effect of waste glass and metakaolin on the resistance of cement composites to alkali-silica reaction. The chapter closes with conclusions and the objectives of the dissertation. The second chapter describes the materials used in the study and their main characteristics, the compositions of the mixtures and how the specimens were moulded. Research methods are presented. The third chapter analyses the properties and structure of waste glass and metakaolin and the physical and mechanical properties of hardened cement paste and cement composite. It presents the results of cement composite resistance to alkalisilica reaction and their analysis. The chapter ends with conclusions. Six scientific articles were published on the dissertation topic, and seven presentations were made at conferences in Lithuania and other countries.