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The article is dedicated to the problem of decarbonising industrial gas emissions using adsorption methods. The article examines promising approaches to reducing carbon dioxide (CO₂) emissions using adsorption materials with high selectivity and efficiency in capture processes. The purpose of the study is to determine the adsorption capacity of various types of adsorbents, including synthetic and natural materials, in particular, fly ash synthesised by the hydrothermal method, zeolite obtained by the sintering method, natural zeolite, and fly ash from thermal power plants.

Nowadays conventional binding material for the construction sector is Portland cement. Portland cement consists mainly of high-energy intensive with a significant carbon footprint Portland cement clinker. Reduction of clinker content in binding materials becomes the utmost priority for scientists in the field, it is reflected in manufacturers’ Sustainability Road Maps.

Створено новий конкурентоздатний клас тампонажних матеріалів – полегшених і легких тампонажних матеріалів (ПТМ) густиною 1370–1650 кг/м3. Компоненти: тампонажний портландцемент ПЦТІ 100, побічний продукт виробництва шамоту з каолінової сировини тонкодисперсний порошок марки ПЕ, кислі золи виносу ТЕС, побічний продукт виробництва вапна  вапняний пил (ВП). Рентгенофазовим і диференційно-термічним аналізом полегшеного тампонажного каменю уточнено склад новоутворень у процесі гідратації ПТМ.

The European Green Deal is the latest climate and environmental protection program launched by the EU. This is a strategy to transform the EU into a resource-efficient economy, in which in 2050 there will be zero greenhouse gas emissions and economic growth will be decoupled from the use of natural resources. After approving the National Economic Strategy for the period until 2030, Ukraine joins and focuses on the European Green Deal and aims to achieve climate neutrality in 2060 (Natsionalna ekonomichna stratehiia, 2021).

The article presents the peculiarities of obtaining superplasticized cementitious systems "Portland cement – fly ash - superplasticizer" to find a rational provision of the given construction and technical properties of concrete. It was studied the physico-chemical peculiarities of the hydration processes of superplasticized cementitious systems. There were solved problems of directional formation of the microstructure of cement stone.

Створено новий конкурентоздатний клас тампонажних композицій (обважнені безусадкові тампонажні матеріали) із використанням як компонентів золи виносу ТЕС, обважнювача і суперпластифікатора. Рентгенофазовим аналізом тампонажного каменю ідентифіковано склад новоутворень в процесі гідратації розроблених тампонажних композицій. Отримано кінетичні криві розширення тампонажного матеріалу в широкому температурному інтервалі. Визначено раціональні температурні режими тужавіння тампонажних композицій за критеріями міцності і газопроникності цементного каменю.

The development of high-performance materials, which are characterized by high compressive and flexural strength, durability and performance properties, is an urgent problem of modern construction. Engineered cementitious composites are one such material. Improving of properties of composites is achieved by partial replacement of cement with supplementary cementitious materials. The ratio of binder and filler components and superplasticizer consumption were selected.

The paper presents the results of research concerning the peculiarities of modern High Performance Concretes based on cementitious systems "Portland cement – active mineral additives – micro fillers – superplasticizers – accelerators of hardening". Physico-chemical regularities of structure formation of super plasticized cementitious systems are established.

In the article the features of reinforced concrete hardening at different temperature conditions and the current issues of preparation technology of Self-Сompacting Сoncretes (SCC) on the basis of superplasticized cementitious systems, combining knowledge of structure and modifying Portland cement compositions "Portland cement – active mineral additives – microfiller – superplasticizer – accelerator of hardening" to search for rational making provision of technical and building properties of concrete in the changing factors of its composition, technology and exploitation are shown.