Ústav technologie stavebních hmot a dílců
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Properties of Plywood Panels Composed of Thermally Densified and Non-densified Alder and Birch Veneers
(MDPI, 2023-01-04)Ukrainian companies mainly use birch in the manufacture of plywood, but species such as black alder is not yet widely used in the manufacture of plywood due to its lower properties. It is well known that thermal compression ... -
Classification of Thermally Degraded Concrete by Acoustic Resonance Method and Image Analysis via Machine Learning
(MDPI, 2023-01-22)The study of the resistance of plain concrete to high temperatures is a current topic across the field of civil engineering diagnostics. It is a type of damage that affects all components in a complex way, and there are ... -
The Effect of Active Additives and Coarse Aggregate Granulometric Composition on the Properties and durability of Pervious Concrete
(MDPI, 2022-01-28)Pervious concrete (PCO) has many advantages and applications, such as water pooling reduction, noise attenuation, replenishment of groundwater reserves, etc. However, the use of pervious concrete is limited due to its low ... -
A Novel Process for the Containment of SO2 Emissions from Class C Fly Ash in the Fired Materials by Haüyne Formation
(MDPI, 2022-09-27)Class C fly ash has been receiving increasing attention due to the gradual transition of thermal power plants all over the world to the fluidized bed combustion technology with sulfur dioxide emissions capture. This research ... -
Application of a Method for Measuring the Grindability of Fine-Grained Materials by High-Speed Milling
(MDPI, 2022-11-15)This article deals with the development of an alternative method for determining the grindability index of fine-grained materials. This method is inspired by the commercially used VTI method (also known as RTI after the ... -
Study on Mechanical Properties of Heap Deposited Fly Ash Based Geopolymers with Different Alkaline Activator Properties
(MDPI, 2022-10-24)Geopolymers can improve environmental protection and are therefore considered a 21st-century material that requires special attention. The main objective of this study was to examine the utilization of fly ash deposited ... -
Study of the Interaction of Cement-Based Materials for 3D Printing with Fly Ash and Superabsorbent Polymers
(MDPI, 2022-11-17)The use of superabsorbent polymers (SAP) in construction is a relatively new trend, and not a completely explored area. However, SAP itself has been on the market for over 80 years. SAPs have a cross-linked three-dimensional ... -
Use of Lightweight Sintered Fly Ash Aggregates in Concrete at High Temperatures
(MDPI, 2022-11-29)This study addresses the issue of the resistance to high temperatures of lightweight concrete lightweighted with sintered fly ash aggregate. Lightweight concretes with different amounts of lightweighting and their properties ... -
Long-term Observation of Yeelimite Clinker Hydration in Environment of Saturated Water Vapour
(Elsevier, 2016-08-03)Due to ecological overloading decrease, industrial by-products are utilized. Fly ash also belongs among these by-products. In Portland-composite cements, the high-temperature fly ash is applied nowadays, but fluidized bed ... -
The Use of Zeolite as Fluxing Agent for Whitewares
(Elsevier, 2016-11-15)The possibility of natural zeolite utilization as a fluxing agent for sintered ceramic bodies will be determined compared with traditional ceramic flux - feldspar and quartz sand as a grog without fluxing effect. Sintering ... -
Investigation of the process of heat transfer in the structure of thermal insulation materials based on natural fibres
(Elsevier, 2016-08-03)Thermal insulation materials based on natural fibres are some of the promising materials that are currently emerging on the construction market. These materials are important especially in terms of sustainable development, ... -
Properties of concrete with partial replacement of natural aggregate by recycled concrete aggregates from precast production
(Elsevier, 2016-08-03)Recycled concrete aggregates (RCA) can be used as a replacement of natural aggregates for a concrete production to save natural sources and also to decrease amount of demolition waste which has to be landfilled. Precast ... -
Studying the Properties of Particulate Insulating Materials on Natural Basis
(Elsevier, 2016-08-03)Recently, materials based on secondary raw materials have been the focus of attention of building companies and end users as well. The reason for this are mainly the low material costs, easy manufacture and application in ... -
Possibilities of using of alkali-activated mortars in aggressive environment
(Elsevier, 2016-08-04)In the article the incipiental experimental works about using of alkali-activated mortars in aggressive environment are introduced. Several types of mortars with different composition were prepared and examined. Observed ... -
Polymer-silicate composite based on alternative raw materials under conditions of increased temperature
(Elsevier, 2016-08-03)The paper presents research into studying the properties of composite materials with polymer-silicate matrix and porous (lightweight) filler. Specifically, the matrix based on cement substituted by 35% of alternative raw ... -
Synthetic preparation of thaumasite – several possible routes for thaumasite formation
(Elsevier, 2016-08-04)Presented work is a part of an experiment where limestone is partially replaced by fluidized fly ash during cement manufacturing. Hydration of this type of cement is connected to formation of AFt phases – thaumasite and ... -
Study of the Moisture Behavior of Newly Developed Plasters Applied on Brick Pillars
(Elsevier, 2016-08-03)As part of research works devoted to the development of silicate thermal insulation materials, two mixtures of plasters based on lightweight aggregate and on traditional and alternative binders were designed. The ... -
Comparison of separate and co-grinding of the blended cements with the pozzolanic component
(Elsevier, 2016-08-03)The main difference between separate and co-grinding of blended cement is the fact that co-grinding occurs interaction among the milled components. These interactions may speed up milling process, or on the contrary to ... -
New Chemically Resistant Coating Systems with Progressive Incorporation of Hazardous Waste in Polyurethane and Epoxy Matrices
(MDPI, 2022-04-29)New types of highly chemically resistant coating systems, primarily intended for concrete and metal substrates, were designed and experimentally verified in the paper. Secondary raw materials in optimal amounts, including ... -
Possibilities of fly ash utilization in the cement matrix by superabsorbent polymers
(CEMC – České ekologické manažerské centrum, 2021-12-01)The paper deals with the possibilities of preparation, processing and basic properties of silicate mass - cement paste using superabsorbent polymer (SAP). SAP is a relatively new additive, which is used in silicate mixtures, ...
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