scholarly journals A comparative analysis of selected parameters of roofing used in the Polish construction industry

2014 ◽  
Vol 9 (1) ◽  
pp. 41-50
Author(s):  
Elżbieta Radziszewska-Zielina
Keyword(s):  
Comparative Analysis ◽  
Construction Industry ◽  
Essential Elements ◽  
Technical Parameters ◽  
Materials Used ◽  
Roofing Materials

Abstract Roofing is an important element in the construction of the roof. It is also one of the essential elements of the whole building. The choice of roofing should depend on technical parameters that affect the quality of the materials used and the price. The present paper is a comparative analysis of the properties of five roofing materials selected as examples with respect to twelve parameters. As can be seen from the comparative analysis of the roofing parameters, roofing tile is by far the best material, receiving the highest score in the ranking

scholarly journals The Application of 3D-Printing Techniques in the Manufacturing of Cement-Based Construction Products and Experiences Based on the Assessment of Such Products

Buildings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 144
Author(s):  
Guillermo Sotorrío Ortega ◽  
Javier Alonso Madrid ◽  
Nils O. E. Olsson ◽  
José Antonio Tenorio Ríos
Keyword(s):  
3D Printing ◽  
Construction Industry ◽  
Material Consumption ◽  
Construction Products ◽  
International Projects ◽  
Substantial Progress ◽  
3D Printed ◽  
Materials Used ◽  
Printing Techniques

The construction industry has embraced digitisation and industrialisation in response to the need to increase its productivity, optimise material consumption and improve workmanship. Additive manufacturing (AM), more widely known as 3D printing, has driven substantial progress in these respects in other industries, and a number of national and international projects have helped to introduce the technique to the construction industry. As with other innovative processes not covered by uniform standards, appropriate assessments and testing methodologies to control the quality of the 3D-printed end products, while not obligatory, are advisable. This article shows that regulation is not an obstacle to the use of an innovative product, such as 3D printing, by proposing quality-control tests and an assessment methodology, in the understanding that standardisation ensures the viability of a technology. The information, including the methods and results, is based on the authors’ experiences in the development of three research projects pertaining to 3D printing. This paper also discusses whether the performance of the materials used in 3D printing could be superior to traditional ones.

THE OCCURRENCE OF BUILDING DEFECTS DURING DEFECT LIABILITY PERIOD (DLP)

2015 ◽  
Vol 75 (5) ◽  
Author(s):  
N. H. Che Hasim ◽  
A. Akhavan Tabassi
Keyword(s):  
Construction Industry ◽  
Developing Country ◽  
New Economy ◽  
Quality Of Work ◽  
The Future ◽  
The Common ◽  
Materials Used

Malaysia is a developing country with various projects and it can generate new economy and can also provide benefit to firms and protection to the residents. However, there are some firms have acted unprofessionally by not using the correct specification. Therefore, there have been many complaints about defects on the home purchased, in terms of quality of work and materials used. Defects liability period (DLP) is a term that the contractor is obliged to remedy the defects occurs in this period. The research presented in this paper aims to broaden previous research on defects by analyzing the defects during DLP, which usually lasts 12 months after the handover period, and aimed to identify the common contribution cause of defects to buildings. The data were obtained from site observation and questionnaire from various players in the construction industry of Malaysia. The finding of this study can be used for future references andcan improve the effectiveness of managing defects in the future of the industry.

scholarly journals Challenges Faced in Prefabrication or Modular Construction

2022 ◽  
Vol 10 (1) ◽  
pp. 168-178
Author(s):  
Felecia Beulah
Keyword(s):  
Case Studies ◽  
Construction Industry ◽  
Modular Construction ◽  
Efficient Approach ◽  
Materials Used ◽  
The City ◽  
High Building ◽  
Growing Population

Abstract: The prefabricated materials used in construction has indeed been hailed amongst the most efficient approaches, there is a difficulty in implementing this process in the construction industry. The article included an outline of the obstacles and factors that influence prefabrication or modular construction in India. The issues of prefabrication and modular construction were investigated through case studies. Prefabricated elements have been demonstrated to be an efficient and efficient approach for improving productivity and the process of construction, as well as assuring the quality of construction & reducing time and cost. However, there are a number of issues with this strategy in practise, including initial high building costs, lack of understanding of the prefabricated method of construction, technical and installation hurdles, and the inability to find prefabrication businesses locally. Because of the nature of the city and also the growing population, the use of such prefabricated materials in the construction of buildings is beneficial. Keywords: Prefabricated construction, Challenges, fabricated elements, Installation hurdles

Environmental Quality of Impact Drills

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Beata Hricová ◽  
Ervin Lumnitzer
Keyword(s):  
Life Cycle ◽  
Comparative Analysis ◽  
Environmental Impact ◽  
Environmental Quality ◽  
Environmental Performance ◽  
Analysis Method ◽  
Technical Parameters ◽  
Production Stage ◽  
The Impact

AbstractEnvironmental performance of each product is defined already at the stage of its design - in its pre-production stage. Environmental quality of the product is one of the most important factors of environmental performance of a product. Environmental quality includes a range of criteria that indicate the nature of the product and its environmental impact throughout its life cycle. The comparative analysis method is one of the ways to assess the environmental quality of the product. The article gives a specific example of the assessments carried out on the impact drills (of one specific brand) with different technical parameters.

scholarly journals Welfare and biosecurity standards for dairy cow and pig farms: Cattle and swine rearing conditions

2009 ◽  
Vol 63 (5-6) ◽  
pp. 369-379
Author(s):  
Slavca Hristov ◽  
Branislav Stankovic ◽  
Tihomir Petrujkic
Keyword(s):  
Essential Elements ◽  
Scientific Data ◽  
Air Velocity ◽  
Basic Principles ◽  
Swine Farms ◽  
Materials Used ◽  
Growing Conditions ◽  
Microclimate Conditions ◽  
Stable Surfaces

In this paper the essential elements concerning cattle and swine rearing and growing conditions were given in order to establish welfare and biosecurity standards. These elements were formed according to detailed annual investigations on 11 cattle and 5 swine farms and include relevant spatial, microclimate and hygienic conditions. In order to establish welfare standards, certain spatial conditions have higher importance, such as correct construction and maintenance of beds, pens and yards, and type and quality of materials used to build beds and walls. It is necessary to enable movement of animals in stables and yards as basic physiological and ethologic needs, according to latest scientific data. Also, optimal temperature, relative humidity and air velocity insuring have to be considered, as well as quality ventilation in order to establish and preserve optimal microclimate conditions. Also, it must be pointed out that hygiene maintenance of stable surfaces and animal bodies on a regular bases is essential. Basic principles and criteria for welfare level assessment are given in this paper. According to results obtained in previous investigations, special attention is given to possibilities to correct rearing and growing conditions in cattle and swine farms in our country. .

Comparative Study Concerning the Generation of some Circular Grooves by Radial Cold Rolling with Roller Tools and Cutting

2014 ◽  
Vol 1036 ◽  
pp. 246-251
Author(s):  
Eduard Niţu ◽  
Monica Iordache ◽  
Doina Iacomi
Keyword(s):  
Comparative Analysis ◽  
Cold Rolling ◽  
Economic Efficiency ◽  
Superficial Layer ◽  
Point Of View ◽  
Micro Hardness ◽  
Circular Profile ◽  
Materials Used ◽  
Cementation Steel

This study is part of the concerns that the authors have had in recent years, representing an extension of a research project funded consisting in modelling representative cold rolling processes of profiles. This paper presents a comparative analysis of quality of the superficial layer of a circular profile (grooves) obtained by two different processes: radial rolling with two roller tools and turning with radial feed. Also, the two processes are compared from the viewpoint of economic efficiency. The materials used for the experiments are frequently used to obtain pieces with circular grooves: two types of cementation steel and two types of heat treatable steel. The characteristics of the superficial layer which describe its quality and which are comparatively analyzed in connection to the two processes are: roughness, microstructure and micro-hardness. The economic efficiency of the two processes was assessed by means of the costs implied and the productivity of processing. The interpretation of the results obtained enabled stressing the advantages to generate circular grooves by cold radial rolling from the point of view of the quality of the superficial layer of pieces, as well as the limits of the use of this process from the viewpoint of economic efficiency.

scholarly journals Features of Modern Approaches in Reconstruction of Facades of Residential Buildings

2020 ◽  
Vol 6 (5) ◽  
pp. 280-285
Author(s):  
A. Nasyrova ◽  
G. Tatarnikov
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Comparative Analysis ◽  
Construction Industry ◽  
Residential Buildings ◽  
Operational Reliability ◽  
Housing Problem ◽  
Engineering Equipment ◽  
Modern Engineering

Modern approaches to the reconstruction of the facades of residential buildings are considered, a comparative analysis between the approaches to reconstruction in the domestic and foreign construction industry is carried out. The reconstruction of residential buildings is one of the important directions for solving the housing problem. It allows not only to extend the life cycle, but also significantly improve the quality of housing, eliminate communal settlement, equip houses with modern engineering equipment, improve the architectural expressiveness of buildings, increase their energy efficiency, operational reliability and durability.

Assessment of the quality of opening of soil structures technical means developed in Kuban State Agrarian University

2020 ◽  
Author(s):  
B. F. Tarasenko B. F. ◽  
◽  
S. Y. Orlenko S. Y. ◽  
V. V. Kuzmin V. V.
Keyword(s):  
Comparative Analysis ◽  
Field Tests ◽  
Soil Structures ◽  
Improved Design

The article presents a comparative analysis, based on field tests, of the quality of loosening of soil structures of the upper horizon with technical means developed at KubSAU and an improved design of a universal tillage unit.

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