Browsing by Publisher "University of Chemistry and Technology"
Now showing items 1-15 of 15
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Alkali-silica reactivity of Portland-composite cements and gravel aggregates
(Ceramics-Silikáty, 2019)The potential alkali-silica reactivity (ASR) of various combinations of Portland-composite cements CEM II/A, and Lithuanian aggregates from three gravel deposits are investigated in this work. These aggregates which contain ... -
Effect of municipal solid waste incineration fly ash on the properties, microstructure and durability of clay bricks
(Ceramics-Silikáty, 2020)The paper analyses the effect of municipal solid waste incineration fly ash (MWSI FA) on the physical-mechanical characteristics, environmental toxicity, microstructure and durability (freeze - thaw resistance) of clay ... -
Impact of natural zeolite on the properties and resistance to alkali silica reaction of mortar
(Ceramics-Silikáty, 2021)This research investigates the effect of the amount (from 2.5 % to 15 %) of natural zeolite on the alkali silica reaction resistance (ASR), density, ultrasonic pulse velocity and mechanical properties of mortar. Research ... -
Influence of natural zeolite on portland cement hydration processes and properties of hardened cement paste
(Ceramics-Silikáty, 2021)The application of natural zeolite clinoptilolite (Si/Al = 5.8) for substituting up to 20 vol. % of the cement (in mortars) was studied. The effect of the natural zeolite on the consistency and compressive strength at 7, ... -
The effect of a complex pozzolanic additive consisting of milled glass and metakaolin on the degradation of a cementitious composite with ground waste glass caused by alkali-silica reaction
(Ceramics-Silikáty, 2022)This paper investigates the effect of partial replacement of cement by milled glass (MS), metakaolin (MK), and their mixture and partial replacement of sand by crushed glass (TS) on the physical and mechanical properties ... -
The effect of a pozzolanic by-product containing glass powder and metakaolin on the properties and AAR resistance of mortar incorporating crushed glass
(Ceramics-Silikáty, 2022)The paper presents the research into the effect of an integrated pozzolanic addition containing glass powder and metakaolin on the physical and mechanical properties and the resistance to an alkali aggregate reaction in ... -
The effect of calcium nitrate on the properties of portland cement pastes and concrete hardening at low temperatures
(Ceramics-Silikáty, 2020)The investigations of the effect of the Ca(NO3)2 dosage at different initial curing temperatures on the Portland cement hydration process and the physical and mechanical properties of Portland cement are presented in the ... -
The effect of crushed glass and metakaolin waste in the properties of modified concrete
(Ceramics-Silikáty, 2022)This paper examines the possibility of using waste crushed glass as a substitute for sand, and waste from the production of foaming agent - metakaolin as a substitute for cement in the production of modified concrete. ... -
The effect of crystallizing admixture on the properties and shrinkage of concrete
(Ceramics-Silikáty, 2021)This study investigates the effect of the amount (from 0.6 % to 1.4 %) of crystallizing admixture (CA) on the shrinkage, density, porosity and mechanical properties of concrete specimens. A higher content of CA increased ... -
The effect of ground glass waste on properties of hardened cement paste and mortar
(Ceramics-Silikáty, 2020)The article addresses the effect of finely ground waste glass on the properties of hardened cement paste and mortar. Cement mixtures were formulated by replacing 0 %, 5 %, 10 %, 15 %, 20 %, 25 %, and 30 % of cement with ... -
The effect of pozzolanic waste of different nature on the hydration products, structure and properties of hardened cement paste
(Ceramics-Silikáty, 2022)The paper analyses the effect of different pozzolanic waste – ground waste glass, metakaolin and addition made of ground waste glass and metakaolin, on cement hydration and physical-mechanical properties of hardened cement ... -
The effect of the electrical conductivity of superplasticizers on the fluidity and early hydration parameters of cement paste
(Ceramics-Silikáty, 2019)It is important to select a certain type and amount of a superplasticizer (SP) for successful cement applications in concrete. The results show that the SPs ((lignosulphonates (LS), polyacrylates (PA) and polycarboxylates ... -
The effect of waste from mineral wool manufacturing on the properties of concrete
(Ceramics-Silikáty, 2021)The article analyses the effect of the residues from mineral wool manufacturing (mineral dust) on the properties of concrete. Concrete mixes were made of cement, sand, gravel, superplasticiser, water and mineral dust ... -
The effect of waste glass sludge used as cement replacement and crystallising admixture on the properties of hardened cement paste
(Ceramics-Silikáty, 2023)Two different mix compositions were prepared to compare the effect of waste glass sludge, with and without a crystallising admixture, on the properties of fresh cement paste and hardened cement paste. In Composition 1 ... -
The influence of primary paper sludge on concrete properties
(Ceramics-Silikáty, 2019)The possibilities of primary paper sludge (PS) only dried at 75 °C from the paper production industry used in concrete composition are discussed. For pursuing the set object, the concrete mixes were chosen where part of ...