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Examination of microstructure of solidification product containing hazardous sludge
(Elsevier, 2016-08-03)The tests involved with the microstructure evaluation must be also added to the processes which significantly support the evaluation of long-term durability of solidification product (SP). Monitoring the microstructure by ... -
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 ... -
Method for the Accelerated Testing of the Durability of a Construction Binder using the Arrhenius Approach
(De Gruyter, 2016-05-02)The single most reliable indicator of a material’s durability is its performance in long-term tests, which cannot always be carried out due to a limited time budget. The second option is to perform some kind of accelerated ... -
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 ... -
Thermodynamic Stability of Ettringite Formed by Hydration of Ye’elimite Clinker
(Hindawi Publishing Corporation, 2016-09-08)Although the stability of ettringite has been the subject of much research, the solution is not yet fully clear. Ettringite is generally considered to be stable up to a temperature of 110°C; however, some investigators ... -
Using acoustic emission methods to monitor cement composites during setting and hardening
(MDPI AG, 2017-04-28)Cement-based composites belong among the basic building materials used in civil engineering. Their properties are given not only by their composition but also by their behaviour after mixing as well as by the methods of ... -
Use of Secondary Crystallization and Fly Ash in Waterproofing Materials to Increase Concrete Resistance to Aggressive Gases and Liquids
(Hindawi Limited, 2019-05-30)This paper describes the use of cement-based waterproofing screed and waterproofing coating, in which 10% of the original amount of cement was replaced by fly ash and 2% of the crystallization admixture was added by weight ... -
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 ... -
Techniques of Soil Modification for Re-use in Construction
(IOP Publishing, 2018-07-16)Nowadays effort is made to study what effects may impact the environment and to address the issue of waste management. The majority of all waste produced is construction waste and demolition debris (approx. 65%). This ... -
Effect of particle size of waste brick powder on the properties of alkaline activated materials
(IOP Publishing, 2018-07-12)The properties of alkaline activated brick dust mixed with water glass with a silicate modulus (Ms) of 1.0 were studied in fresh mixtures as well as hardened products in connection with the particle size of the dust. The ... -
Effect of steel fibres dosage in alkali-activated slag mortars on acoustic emission obtained during three-point bending tests
(EDP Sciences – Web of Conferences, 2017-05-24)The acoustic emission phenomenon is directly associated with nucleation of cracks in structural materials during loading. This paper analyses acoustic emission signals captured during three-point bending fracture tests of ... -
The Assessment of Cement Mortars after Thermal Degradation by Acoustic Non-destructive Methods
(IOP Publishing, 2017-10-25)Thanks, the terrorist attacks on the worldwide interest in the design of structures for fire greatly increased. One of the advantages of concrete over other building materials is its inherent fire-resistive properties. The ... -
Monitoring of concrete hydration by electrical measurement methods
(Elsevier, 2016-08-01)Analysis of impedance spectra of inhomogeneous materials is a part of the impedance spectroscopy which is still waiting for its development. Materials having higher electric resistance values (over 500 kohm) can be considered ... -
Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activator
(IOP Publishing, 2018-07-12)The rheological behaviour and mechanical properties of alkali-activated materials prepared by activation of a brick powder by alkaline solution (alkali + water glass) is presented in this paper. The effect of quantity of ... -
Alternative Evaluation of the grindability of Pozzolanic Materials for Cement Production
(IOP Publishing, 2017-10-25)All conventional methods for the evaluation of grindability require a specific grinding instrument. These grinding instruments do not have any other practical use and thus are not very common. This paper focuses on the ... -
Hygric and mechanical parameters of ternary binder based plasters lightweighted by expanded perlite
(IOP Publishing, 2018-07-12)This article is focused on modern plasters with improved thermal insulating ability. The studied plasters were composed of lime, cement, ceramic powder, expanded perlite and silica sand. Regarding the matrix, three kinds ... -
Effect of chitosan ethers on fresh state properties of lime mortars
(IOP Publishing, 2017-10-25)The fresh state properties of mortars are eminently important since determine the material workability and also have a great influence on its hardened state characteristics. In this paper, the behaviour of fresh lime mortars ... -
Ternary binder based plasters with improved thermal insulating ability
(IOP Publishing, 2017-10-25)New kind of plasters with improved thermal insulating ability are presented in this article. Improvement was reached by utilization of lightweight expanded perlite with high porosity. The second used aggregate was silica ... -
Monitoring the long-term durability and microstructure of polymer concrete patching materials with high content of secondary raw materials using advanced methods
(IOP Publishing, 2018-07-16)For commercially produced polymer systems, only primary raw materials are used as fillers. These fillers are predominantly pure silica sand of various grading. The substitution of primary materials with secondary raw ... -
Usability of alternative admixtures for the production of blended cements
(IOP Publishing, 2018-07-16)This paper studies how pozzolan materials can be mechanically activated. For this, two major grinding technologies and different types of artificial pozzolans, such as red brick dust, granulated blastfurnace slag and sheet ...
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