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Fracture parameters of fly ash geopolymer mortars with carbon black and graphite filler
(IOP Publishing, 2021-11-23)In this study, the effect of carbon black and graphite filler on the crack initiation and fracture parameters of fly ash geopolymer mortar is investigated. The carbon black was added in the amount of 0.5 and 1.0% and ... -
Blended alkali-activated fly ash / brick powder materials
(Elsevier, 2016-08-08)Aluminosilicate materials can be transformed into very compact binding material by the process called alkaline activation. The paper presents results of alkaline activation of fly ash and waste fine-grained brick body. ... -
Immobilization of Heavy Metals in Natural Zeolite-blended Cement Pastes
(Elsevier, 2016-09-26)This paper deals with the investigation of efficiency of natural zeolite-blended cement pastes for the immobilization of heavy metals. Natural zeolite was used to partially replace ordinary Portland cement (OPC) at rates ... -
Fracture parameters of alkali-activated aluminosilicate composites with ceramic precursor: durability aspects
(Elsevier, 2021-11-20)Four sets of alkali-activated aluminosilicate (AAAS) composites based on ceramic precursors were studied in terms of their characterization by mechanical fracture parameters as a basis for considerations of durability. ... -
Effect of Aggregate and Binder Type on the Functional and Durability Parameters of Lightweight Repair Mortars
(MDPI, 2021-10-25)The subject matter of the work presented here is the development and evaluation of novel lightweight mortars that meet the functional and technical criteria imposed on repair mortars. In a broad experimental campaign, lime, ... -
Bond Properties of NHL-Based Mortars with Viscosity-Modifying Water-Retentive Admixtures
(MDPI, 2021-06-25)This article studies the influence of biopolymeric viscosity-modifying admixtures with water-retentive function on the physico-mechanical properties of natural hydraulic lime-based mortars and their adherence to the ... -
Self-Sensing Properties of Fly Ash Geopolymer Doped with Carbon Black under Compression
(MDPI, 2021-08-04)The development of smart materials is a basic prerequisite for the development of new tech-nologies enabling the continuous non-destructive diagnostic analysis of building structures. Within this framework, the piezoresistive ... -
Evaluation of durability-related field inspection data from concrete bridges under service
(Polish Academy of Sciences, 2020-01-01)The level of de gradation of reinforced concrete bridges was evaluated based on the in-situ measurements performed on five reinforced concrete bridges under service located in the Czech Republic. The combined effect of ... -
Salt and Ice Crystallization Resistance of Lime Mortars with Natural Lightweight Aggregate
(Scipedia, 2020-09-25)In this study, the comparison of lava sand, pumice, and natural zeolite as lightweight aggregate in air lime mortars, natural hydraulic lime mortars, and cement-lime mortars has been investigated with emphasis on the ... -
Impedance spectroscopy measurement of metakaolin-based alkali-activated building materials
(IOP Publishing, 2020-12-18)Cement-containing as well as cement-free building materials are regarded as dielectrics. Therefore, electrically conducting admixtures are to be added to them in order to increase their electrical conductivity. Steel or ... -
Microstructure of biopolymer-modified aerial lime mortars
(EDP Sciences, 2020-10-14)Cellulose-based viscosity-modifying admixtures are used on daily basis in a wide range of building materials, dominantly in pre-mixed mortar systems. Lately, alternative admixtures such as different “gums” have emerged. ... -
Mortars with Crushed Lava Granulate for Repair of Damp Historical Buildings
(MDPI, 2019-10-30)In this paper, crushed lava granulate was used as full silica sand replacement in composition of repair mortars based on hydrated lime, natural hydraulic lime, or cement-lime binder. Lava granules were analyzed by X-ray ... -
Characterization of geopolymers prepared using powdered brick
(Elsevier, 2019-11-01)Geopolymerization of waste products can contribute to the solution of current environ-mental issues related to depletion of natural resources. In this paper, several geopolymer mixes are prepared using waste brick in ... -
Modelling of interfacial transition zone effect on resistance to crack propagation in fine-grained cement-based composites
(Italian Group of Fracture, 2017-07-03)In this paper, the attention is paid to investigation of the importance of the interfacial transition zone (ITZ) in selected fine-grained cement-based composites for the global fracture behaviour. This is a region of cement ... -
Components of the Fracture Response of Alkali-Activated Slag Composites with Steel Microfibers
(MDPI, 2019-05-16)Knowledge of the mechanical and primarily fracture parameters of composites with a brittle matrix is essential for the quantification of their resistance to crack initiation and growth, and also for the specification of ... -
Optical performance of colored crystalline solar cells for building energy efficient application
(Elsevier, 2015-10-17)The optical properties of building materials belong to the features that are currently taken into account more frequently. There are various reasons for dealing with those parameters. Some of them aim to achieve specific ... -
Rheology of natural hydraulic lime pastes modified by non-traditional biopolymeric admixtures
(SCIENTIFIC SOC SILICATE INDUSTRY-SZTE, 2019-11-29)Viscosity enhancing admixtures, widely used to improve characteristics of concrete and ready-mix mortars, are mainly different derivatives of cellulose. Due to the nature of cellulose processing, the environmental-friendlier ... -
Electrical and Self-Sensing Properties of Alkali-Activated Slag Composite with Graphite Filler
(MDPI, 2019-05-16)The electrical properties of concrete are gaining their importance for the application in building construction. In this study, graphite powder was added to alkali-activated slag mortar as an electrically conductive filler ... -
Thermal behaviour of metakaolin/fly ash geopolymers with chamotte aggregate
(MDPI, 2016-06-30)Geopolymers are generally appreciated for their good resistance against high temperatures. This paper compares the influence of thermal treatment with temperatures ranging from 200–1200 °C on the mechanical properties and ... -
Effect of the preparation of lime putties on their properties
(Springer Nature, 2017-12-08)In the study of lime as the basic component of historical mortars and plasters, four lime putties prepared from various kinds of lime of various granulometry and by various ways of preparation were evaluated. The rheological ...
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