Ústav technologie stavebních hmot a dílců
Browse by
Recent Submissions
-
Impact of Fly Ash as a Raw Material on the Properties of Refractory Forsterite–Spinel Ceramics
(MDPI, 2020-09-22)This article examines the process for the synthesis of forsterite-spinel (2MgO center dot SiO2/MgO center dot Al2O3) refractory ceramics from fly ash and alumina as sources of aluminum oxide. Raw materials were milled, ... -
Abrasive Wear Resistance of Concrete in Connection with the Use of Crushed and Mined Aggregate, Active and Non-Active Mineral Additives, and the Use of Fibers in Concrete
(MDPI, 2020-11-27)Virtually every concrete structure comes into contact with abrasive effects of flowing media or solids, which have a direct impact on the durability of concrete. An abrasive effect is most pronounced in transport or water ... -
Wear of grinding rotors with thermally-sprayed coatings in a high-speed mill
(Elsevier, 2018-10-15)In this paper, the erosion behavior of three types of protective thermally-sprayed coatings and non-coated substrate steel was investigated under semi-industrial test conditions using a laboratory high-speed pin mill DESI-11. ... -
The Influence of Crystalline Admixtures on the Properties and Microstructure of Mortar-Containing By-Products
(MDPI, 2020-08-21)Crystalline admixtures and industrial by-products can be used in cement-based materials in order to improve their mechanical properties. The research examined long-term curing and the exposure to environmental actions of ... -
Development of Crystallinity of Triclinic Polymorph of Tricalcium Silicate
(MDPI, 2020-08-24)Tricalcium silicate phase is one of the main components of modern Portland cements. One of the major industrial challenges in the field of cement production is mapping the influence of individual clinker minerals and their ... -
Development of microstructure of the fly ash aerated concrete in time
(Elsevier, 2015-07-09)Calciumhydrosilicate components formed during autoclaving process are highly complex formations, which often blend together mutually and form a variety of intermediate products, from completely amorphous, to the good ... -
Solidification of Hazardous Waste with the Aim of Material Utilization of Solidification Products
(Elsevier, 2015-07-09)This work deals with the possibility of using solidification technology to transform the hazardous waste with the aim to achieve the material utilization of solidification products. For this purpose, it is necessary to ... -
Development of grout for additional seal embankment dams
(Elsevier, 2015-06-25)The technology of sealing sand and gravel by chemical injection has been known and used for a long time. Chemical grouting is however expensive and sometimes the use of cement does not lead to the desired effect. That is ... -
Carbon Nanotubes in Cementitious Composites: Dispersion, Implementation, and Influence on Mechanical Characteristics
(Hindawi, 2016-06-14)In article were descibed possibilities of CNT's dipersion. Implementation CNT to the cements matrix and it's influence to the mechanical properties -
The Effect of the Wear of Rotor Pins on Grinding Efficiency in a High-speed Disintegrator
(Kaunas University of Technology, 2018-02-19)One of the directions intensively investigated in the field of milling is high-energy milling (HEM). One type of HEM is high-speed grinding in high-speed disintegrators. This type of mill is particularly suitable for the ... -
Behaviour of cement composites with lightweight and heavyweight aggregates at high temperatures
(Budapest University of Technology and Economics, 2017-03-24)This paper presents new results of the research of the influence of individual input components done on the behaviour of cement based composite materials exposed to high temperatures. A new approach of this research lies ... -
Verification of the Possibility of Solidification Product Made of Neutralization Sludge use in the Building Industry
(Elsevier, 2013-05-16)This paper deals with hazardous waste solidification /stabilisation, specifically neutralization sludge that comes from active industrial sources and neutralization sludge that comes from old ecological sources. As ... -
Utilization of Fluidized Bed Combustion Fly Ash in the Design of Reuse Clay Soil in the Form of Self-Compacting Grouts
(MDPI, 2020-04-23)This paper addresses the influence of fluidized bed combustion fly ash (FBCA) and further liquefying additives on the formation of structure and on the resulting properties of self-compacting grouts based on clay soil. In ... -
Effect of Imposed Shear Strain on Steel Ring Surfaces during Milling in HighSpeed Disintegrator
(MDPI, 2020-05-13)This contribution characterizes the performance of a DESI 11 highspeed disintegrator working on the principle of a pin mill with two opposite counterrotating rotors. As the ground material, batches of Portland cement ... -
Efect of Chemical Aggressive Media on the Flexural Properties of Cured-In-Place Pipes Supported by Microstructure Observation and Acoustic Emission
(MDPI, 2020-07-08)The cured-in-place pipe (CIPP) method is currently the most frequently used approach for the renovation of piping without digging; this technology is suitable for pipes made from all types of material. The authors of this ... -
Testing of Action of Direct Flame on Concrete
(Hindawi, 2015-01-22)The paper states results of experimental exposition of concrete test specimens to direct flame. Concrete test specimens made from various mixtures differing in the type of aggregate, binder, dispersed reinforcement, and ... -
Determine the Compressive Strength of Calcium Silicate Bricks by Combined Non-Destructive Method
(Hindawi, 2014-09-01)The paper deals with the application of combined non-destructive method for assessment of compressive strength of calcium silicate bricks. In this case it is a combination of the rebound hammer method and ultrasonic pulse ... -
High-Performance Concretes Intended for Deep Foundations of Constructions
(Horizon Research Publishing Corporation, 2020-02-08)The term high-performance concrete (HPC) can be used to classify any concrete mixture that possesses some added value. One such category of concrete is concrete mixtures used in pile foundation, which must only allow a low ... -
The Impact Of Different Aggregate Types And Its Composition On Resulting Concrete Properties Representing The Water Impermeability Level Of Concrete For The Construction Of White Boxes
(Horizon Research Publishing, 2020-02-08)We understand the term ‘white box’ as a concrete structure in underground spaces, basements, or cellars, where it is necessary to consider the water impermeability of concrete or minimal changes in volume changes of concrete. ... -
Impact of Aggressive Media on the Properties of Polymeric Coatings with Solidification Products as Fillers
(MDPI, 2019-11-26)Dealing with waste materials, particularly hazardous waste, is a serious problem. Disposal areas keep growing, and the costs incurred are high. Disposing of such waste reduces negative environmental impacts and offers ...
RSS 1.0