Katarzyna Pawluk

• Warsaw University of Life Sciences

The paper analyses 100 multi-family residential buildings with basements made in traditional technology, with a usable area from 604.50 m2 to 2315.00 m2, built between 1952 and 1958 in the Masovian Voivodship. For the analysed buildings, individual elements were inspected once a year and their technical condition was determined. The research was co...

This paper examines the effectiveness of sustainable warehouse design with regard to fire regulations and costs. When designing industrial facilities, the high risk of fire during their subsequent operation must be considered. Therefore, in this article, the variant analysis in terms of cost and technological, sustainable solutions for the investme...

CO2 emission limits introduced by the European Union are encouraging works on new-generation materials with reduced clinker content. Currently, fumed silica from hard coal combustion is used in cement and concrete technology in Europe and Poland. Its wide application depends mainly on its chemical and phase composition, especially the reactivity of...

In Poland, the dynamics of undertaken and plannedinvestments related to the implementation of underground sewerlines has significantly increased in recent years. Many of theseinvestments are implemented with the help of EU funding. Itis worth ensuring that these resources are used as efficiently aspossible. One of the important steps in achieving t...

Improper recognition of the subsoil is the most common cause of problems in the implementation of construction projects and construction facilities failures. Most often, their direct cause is the mismatch of the scope of geotechnical diagnosis to the appropriate geotechnical category, or substantive errors, including incomplete or incorrect interpr...

The construction industry of Ukraine has a number of problems and barriers that hinder its development. The main problems affecting Ukraine are corruption, high level of opacity, inefficient use of resources and inefficient process management. Moreover, ineffective design and construction management reduce labor productivity and leads to reworks. U...

Modern construction projects, especially large ones, require a wide range of participants. Taking this requirement into account it is of vital importance to optimize the cooperation between the participants. It made possible by modern Building Information Modeling (BIM) and Integrated Project Delivery (IPD) concepts. This study aims to analyze the...

The aim of the article is to develop an assessment model for the effect received from the integration of enterprises during the realization of investment projects in the construction. Having analysed the existing methods of the economic effect evaluation, we came to the conclusion that it is impossible to use them completely to assess the economic...

The collapse of the Soviet Union was the cause of a significant decline in many economies of the newly created countries. However, many of them, including the Ukrainian economy, are slowly recovering. One of the largest branches of the economy in this country is construction, which, despite political turmoil, is constantly growing, especially in th...

The article presents detailed analysis of the case of the renovation of one of historic tenement houses in Warsaw. Other, similar cases analyzed in less detail- were called verification cases. The aim of the article was, first of all, to present the scale of discrepancies between planned and performed amount of works and possibly precise indication...

The aim of this study was to examine the ability of zero-valent iron (ZVI), zeolite (Z) and modified construction aggregate (MCA) to remove heavy metals from aqueous solutions. In addition, the use of an alternative material in permeable reactive barriers (PRBs) technology was investigated. This paper presents the premilary kinetic batch test and c...

The design, construction and management of engineering projects tend to be large scale, indivisible, and long-term facilities, with investments taking place in waves. This investment process due to constant further development has become a critical issue in the world management of civil engineering with regard to sectors of the national and private...

The construction of geotechnical structures, e.g. diaphragm walls, tunnels, pad foundations or embankments, on cohesive soils, requires assessing the bearing capacity in undrained conditions. For this purpose, it is necessary to determine the value of undrained shear strength. Undrained shear strength is not the same in the subsoil, because it depe...

The article presents a settlement analysis of introduced changes in the example infrastructure investment. The procedure of introduced the Change Command and the Engineer's Instruction on the Construction contract, as well as examples of the Change Commands given by the Engineer on the analyzed object were presented. The study covered the sett...

This paper presents the comparison of selected elements of a single-family building in light clay and traditional technology. The advantages and disadvantages of the properties of several materials used in both technologies are described. Moreover, the history of building using clay and its modern construction application, as well as an overall vie...

Permeable reactive barriers are one of the most important in situ technologies in groundwater remediation. Most of the installed PRBs have tended to use singular reactive media, but there is an increasing number of applications using combined or sequenced media to treat mixtures of contaminants within a groundwater plume. The concept of a multi-lay...

The aim of the study is to analyse claims filed by building contractors during the project implementation. The work is divided into two parts. In the first part problems associated with the management of claims in the construction process were discussed. Bearing in mind that claims may result in prolongation of the investment or exceeding planned b...

Permeable reactive barriers (PRBs) are employed as in situ groundwater remediation technology. The installation of PRBs is usually a major investment, where one of the biggest cost drivers are material costs. PRBs are barriers against contaminants moving under the natural gradient, however not against groundwater contaminants. The most common const...

W artykule przeanalizowano specyfikę projektu budowlanego zarzadzanego wg procedury FIDIC oraz na podstawie własnych badań ankietowych określono słabe i mocne strony tych warunków kontarktowych. Badaniom ankietowym poddano pracowników zajmujących kierownicze stanowiska w jednej z wiodacych firm budowlanych na rynku polskim i europejskim. Badana fi...

During the planning and controlling of the construction process, most attention is focused on risk analysis, especially in the context of final costs and deadlines of the investment. In this analysis, the primary and most significant concern is the proper identification and quantification of events, which on a certain level of probability may affec...

Activated carbon is an effective sorbent for removing organic and inorganic contaminants from aqueous solutions. In conducted experiments, granulated activated carbon (GAC) was used to examine the adsorption processes of heavy metals (Cd, Cu, Ni, Pb and Zn). Studies (performed in batch system) were carried out as a function of time, heavy metals co...

In this paper, the ability of nZVI to remove heavy metals (Cd, Cu, Ni, Pb, Zn) from multicomponent aqueous solutions was investigated through batch experiments. The experimental data were fi tted to a second-order kinetic model based on solid capacity. The data for copper and lead fi tted well into the second-order kinetic model, thus suggesting th...

In this paper, the ability of granular activated carbon, silica spongolite and zeolite to remove heavy metals from aqueous solutions has been investigated through column tests. The breakthrough times for a mobile tracer that does not sorb to the material for SS, GAC and layered SS, Z and GAC were as follows: 2.54·10(4) s, 2.38·10(4) s and 3.02·10(4...

Nowadays, the network of roads and road infrastructure as petrol station, road drainage system etc. exemplify key sources of environmental pollution. Therefore, to ensure the acceptable quality of groundwater, a proper protection system is required. Recently, in this purpose the permeable reactive barrier (PRB) systems are commonly used. In order t...

One of the crucial environmental problems through the world is the pollution of groundwater by run-off and snowmelt from roads. In the case of incorrect environment protection in the vicinity of roads the pollutans may migrate to groundwater causing hazard to sources of potable water. Imposing the flow of polluted water through a reactive materials...

Główną przyczyną negatywnego wpływu infrastruktury drogowej na środowisko, w tym przede wszystkim na wody podziemne i powierzchniowe, są stałe i płynne zanieczyszczenia-substancje organiczne oraz metale ciężkie-występujące ciągle (np. spaliny, pył ze ścierania opon), okresowo (np. środki odladzające) lub przypadkowo na skutek awarii (wyciek z cyste...

Application of permeable reactive barriers near roads for chloride ions removal. One of the most critical sources of pollutants are road run-offs. Road run-off is a complex mixture of toxicants e.g. heavy metals, de-icing agents, organic compounds and water suspensions of solid substances. One of the most negative impact on the environment has sodi...