Legal obligations of property manager

Import 02/11/2016Cílem této bakalářské práce bylo vytvořit přehled zákonných povinností správce majetku v rámci životního cyklu stavby. Teoretická část bakalářské práce se zabývá zpracováním teorie týkající se obecně správy majetku. Rozdělení činností spojených s výkonem správy mejetku ve vztahu k různým druhům staveb. V další části jsou zmíněny základní požadavky na stavby s příslušnou legislativou a jednotlivé zákonné povinnosti které z těchto požadavků taktéž vycházejí. Praktická část bakalářské práce je vytvoření přehledové tabulky o jednotlivých zákonných povinností, které musí být v rámci správy objektu plněny.The aim of this thesis was to create an overview of legal obligations of property manager within the life cycle of the building. The theoretical part deals with processing theory on general asset management. Distribution of activities associated with facility management in relation to different types of buildings. In the next part are mentioned basic requirements for construction with the relevant legislation and the different legal obligations that are based on these requirements. The practical part is the development of a scoreboard of various statutory obligations which must be met within the administration object of individual responsibility.222 - Katedra městského inženýrstvívelmi dobř

Fundamental Properties of Industrial Hybrid Cement Important for Application in Concrete

Hybrid cement (H-Cement/HC) takes advantages of the material properties of cement and alkali-activated cement with the resulting benefit on utility properties so that hybrid cement can replace in large quantities ordinary Portland cement (PC) as follows: H-Cement is used by the same way as traditional cements; H-Cement is suitable for use in ready-mixed concrete up to C30/37 strength class; H-Cement has shrinkage-reducing and alkali-aggregate-mitigating property; H-Cement shows the same sulphate resistance with sulphate-resistant Portland cement with C3A = 0; H-Cement is a suitable binder for use in concrete containing the swelling steel slag aggregate as a full replacement of natural aggregate. This low-energy, low-cost and environmentally friendly hybrid cement belongs to the group of advanced cements, in which parameters predetermine it to overcome PC serviceability in certain applications. The objective of this chapter is to characterize fundamental properties and some durability aspects of H-Cement in concrete

Características básicas de un cemento híbrido industrial: utilización en hormigón premezclado y aplicaciones como reductor de la retracción

Utility properties of novel hybrid cement (H-Cement) are influenced by pozzolanic reaction of fly ash, latent hydraulic reaction of metallurgical slag together with the alkali activation of inorganic geopolymer based on precipitated waste water coming from bauxite residues. Content of Portland cement clinker is at maximum of 20 mass %, the remaining portion consists of inorganic geopolymer. Up to 80% of CO2 emissions are saved by H-Cement manufacture compared to ordinary Portland cement (OPC). No heat treatment or autoclaving is needed at H-Cement production. The field application of H-Cement is performed by the same way than that of common cements listed in EN 197-1, and is also connected with highly efficient recovery and safe disposal of red mud waste. H-Cement is suitable for ready-mixed concretes up to C30/37 strength class and is specified by beneficial shrinkage-reducing property of the concrete kept in long dry-air cure opposite to common cements.Las propiedades de un nuevo cemento híbrido (cemento-H) vienen determinadas por la reaccion puzolánica de cenizas volantes, la hidráulica latente de las escorias metalúrgicas y la activación alcalina mediante las aguas residuales generadas por el tratamiento de la bauxita para dar un geopolímero inorgánico. La proporción máxima de clínker de cemento en este nuevo material es del 20%, y por ello, en su fabricación se emite hasta un 80% menos de CO2 que en la producción del cemento portland (OPC). El cemento-H se prepara sin necesidad de tratamiento térmico ni de estancia en autoclave y su aplicación es la misma que los cementos convencionales definidos en la norma EN 197-1. Por otra parte, su fabricación supone la recuperación y la valorización segura de los lodos rojos de bauxita. El cemento-H es apto para la preparación de hormigones premezclados hasta la categoría C30/37, presentando el nuevo material, además, una menor retracción que los cementos convencionales, por lo que su empleo resulta especialmente ventajoso en los hormigones que se curan al aire

Statutory Duty to Administer Municipalities and Cities

Cílem této diplomové práce je vytvořit přehled zákonných povinností při správě obecního a městského majetku. Práce rozlišuje oblasti správy obecního majetku a vzhledem k němu pak určuje povinnosti, které musí být plněny. Určuje povinnosti, které obce musí plnit a v jakých intervalech. Praktická část pak zobrazuje možnost použití softwaru Pit Fm, který nově obsahuje modul podpory legislativy a je schopný svého uživatele upozornit na jednotlivé povinnosti ve vztahu k určitým legislativním předpisům.The purpose of this thesis is to provide an overview of legal obligations of cities imposed on state-owned property management. This thesis defines the areas of state-owned property management and determines the responsibilities applied to them. In other words, what responsibilities cities are obliged to follow in specific time frames. The practical part of the thesis reviews the use of PitFM software with a recently added feature that enables users to be notified with a reminder as to which specific responsibilities arising from certain legal obligations must be fulfilled.222 - Katedra městského inženýrstvídobř

Soil Profiles and Seismic Loading

The contribution estimates different geotechnical profiles of site condition change and their influences on the computed seismic response spectra and time histories final values and forms applying on the seismic structures loading. The mentioned problems methodics attitude solution is based on the computed seismic motion parameters

Mobility of Trace Elements in Pore Solutions of Portland Cement Pastes Exposed to Leaching

Two Portland cement pastes, CEM I 42.5R and CEM III/A 52.5N were exposed to leaching by soft water throughout a one–year hydration period. Mobility of trace elements was investigated by determination of their pore solution concentration in the course of time. Eleven trace elements were included in this research: antimony, arsenic, cadmium, chromium, cobalt, copper, mercury, nickel, lead, vanadium and zinc. The possible usage of the pore solution trace elements concentration in monitoring of deleterious leaching reactions and prediction of environmental risk was investigated. This work is licensed under a Creative Commons Attribution 4.0 International License

LONG – TERM PROPERTIES OF CEMENT COMPOSITES WITH VARIOUS METAKAOLINITE CONTENT

The optimal temperature transformation of kaolin sand to metakaolin sand (MKS) resulting in complete conversion of kaolinite to pozzolanic active metakaolinite (MK) is 650°C in the time of 1 hour. To obtain information on mechanism of pozzolanic reaction in studied binary system, the cement pastes with two MKS at substitution level of Ordinary Portland cement (OPC) with MKS by 10, 20 and 40 wt. % corresponding to 3.6 - 16.0 % MK content in pastes, were tested. Pozzolanic reaction of MK with hydrating OPC was clearly confirmed mainly by XRD and thermal analyses. This process accompanied with gradual reduction of Ca(OH)2 content was the most intense in pastes with the highest MK contents (14.4 and 16.0 %). The decrease of micropore and total pore volume until MK content in paste of 7.2 % is measure of pore structure improvement specified as pore structure refinement. Until MK content of 8.0 % in paste, micropores portion with pore radius less than 10 nm rises and pore radius in the range between 10 and 100 nm declines. Resulted compressive strengths of related cement pastes with various MK content were comparable with strengths of pastes without MK. The obtained results confirmed that MKS can be used as promising additive in OPC to form prospective blended cements

Research focused on low carbonation of concrete under old cement-based render

In-situ research and laboratory study of the concrete of old bridges shows that despite the low strength classes of concrete and the long time of exposure to CO2, it is possible to moderate the depth of their carbonation. Many old bridges were found during the in-situ survey in Slovakia, which showed negligible carbonation under an old cement render (PRC) even after more than 100 years of direct exposure to CO2. At the same time, it was found that if this protective layer was significantly damaged or missing in some places, the depth of carbonation of the same concrete reached considerable depths, locally 70-80 mm. The article presents and summarizes the findings from in-situ and laboratory research with a possible explanation of this phenomenon

The Resistance of New Kind of High-Strength Cement after 5 Years Exposure to Sulfate Solution

This article deals with the determination of technically important properties, the recognition of microstructure and pore structure, and the mortar resistance of a new cement kind NONRIVAL CEM I 52.5 N containing 7.94% wt. of C3A to 5% sodium sulfate solution. Both reference types of cement were industrially manufactured: 1) ordinary Portland cement CEM I 42.5 R and 2) Portland cement CEM I 42.5 R – SR 0, declared as sulfate resistant because of C3A = 0%. The research was carried out at standardized mortars. The used sodium sulfate solution, which contained 33802.8 mg of aggressive SO42− per liter, exceeded approximately 5 to 10 times the concentration of the third degree of aggressiveness of the XA chemical environment according to STN EN 206 + A1. The reference medium was drinking water. The 5-year results of non-destructive and destructive physical-mechanical tests as well as the formed microstructure and pore structure in both liquid media were evaluated. The cause of the NONRIVAL CEM I 52.5 N sulfate resistance was explained, despite the manufacturer’s declared C3A content of up to 8% by weight. Sulfate resistance of NONRIVAL CEM I 52.5 N is found comparable to that of sulfate resistant CEM I 42.5 R – SR 0