LINKS BETWEEN EDUCATION AND RESEARCH IN THE FIELD OF NATURAL BUILDING MATERIALS RESEARCH AT THE FACULTY OF CIVIL ENGINEERING OF VŠB TECHNICAL UNIVERSITY OF OSTRAVA

Author(s):  
Jiri Teslik ◽  
Barbora Hruba ◽  
Marek Jasek ◽  
Pavel Vlcek
2013 ◽  
Vol 700 ◽  
pp. 204-207
Author(s):  
Ying Pan ◽  
Xiao Gang Zhao ◽  
Juan Li

This paper describes the concept and connotation of green building materials, combing the domestic and international green building materials research status; analysis on direction and achievements of construction materials, like natural building materials, Cyclic regeneration of building materials, Low environmental load building materials, Environmental functional building materials and Renewable energy use composite material. Besides, discusses the present situation and problems of domestic green building materials. Furthermore, Analysis on the application prospects of green building materials, from the level of technical measures strategies and ways of development and application of green building materials.


Materials ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 234
Author(s):  
Matthias Richter ◽  
Wolfgang Horn ◽  
Elevtheria Juritsch ◽  
Andrea Klinge ◽  
Leon Radeljic ◽  
...  

Indoor air quality can be adversely affected by emissions from building materials, consequently having a negative impact on human health and well-being. In this study, more than 30 natural building materials (earth dry boards and plasters, bio-based insulation materials, and boards made of wood, flax, reed, straw, etc.) used for interior works were investigated as to their emissions of (semi-)volatile organic compounds ((S)VOC), formaldehyde, and radon. The study focused on the emissions from complete wall build-ups as they can be used for internal partition walls and the internal insulation of external walls. Test chambers were designed, allowing the compounds to release only from the surface of the material facing indoors under testing parameters that were chosen to simulate model room conditions. The emission test results were evaluated using the AgBB evaluation scheme, a procedure for the health-related evaluation of construction products and currently applied for the approval of specific groups of building materials in Germany. Seventeen out of 19 sample build-ups tested in this study would have passed this scheme since they generally proved to be low-emitting and although the combined emissions of multiple materials were tested, 50% of the measurements could be terminated before half of the total testing time.


2013 ◽  
Vol 357-360 ◽  
pp. 1070-1073
Author(s):  
Bao Zhu Sheng

Building material is the base of civil engineering construction, in the history of thousands of years of development, building materials also gradually change and change, and is closely related to the progress of human civilization and the development of science and technology.Green building materials has the vital significance to the construction of a conservation-oriented society and sustainable development, in accordance with China's social development.This paper introduces the importance of the development of green building materials,analyzes some factors influencing the development of green building materials in China,and discusses the development tendency of green building materials in China.


2014 ◽  
Vol 40 (4) ◽  
pp. 171-174 ◽  
Author(s):  
Petr Jadviščok ◽  
Rostislav Dandoš ◽  
Tomaš Jiroušek

This contribution describes process which was used for verticality measurement of the bushings for laboratory construction materials in the pavilion of testing. This pavilion is newly built in VŠB-TU Ostrava, Faculty of Civil Engineering, as part of the Testing house of the building materials. The requirement of the building investor was to determine the verticality of the bushings placed between the first aboveground and the first underground floor. After the building finishing, the bushings with the diameter 70 mm will be used for loading tests of various building materials. The final number of bushings is 169, and they are placed lengthwise and crosswise in the step of 750 mm. The centres of the bushings were measured by polar method in pavilion local coordinate system. The precision of the bushing centres determination was }5 mm according to the investor´s requirement. The precision would not be followed if the standard equipment for reflector fixing was used. In that case, it was necessary to design and manufacture special tool in the shape of truncated cone. On the top part was placed central pivot for reflector with additional plate bubble.


1987 ◽  
pp. 54-54

2019 ◽  
Vol 22 (1) ◽  
Author(s):  
María Guadalupe Cuitiño-Rosales ◽  
Rodolfo Rotondaro ◽  
Alfredo Esteves

Resumen Se analizan las características térmicas y de resistencias mecánicas de materiales y elementos constructivos elaborados con suelos naturales estabilizados. La metodología parte de la recopilación bibliográfica de fuentes primarias, secundarias e información de ensayos propios, sobre la densidad, la conductividad térmica y las resistencias a la compresión, a la flexión y al corte correspondientes al adobe, los bloques de tierra comprimida (BTC), la tapia y la quincha, según diferentes autores. Además, se consideraron los valores establecidos por normas argentinas IRAM referidas al acondicionamiento térmico de edificios. Se elaboraron comparaciones entre sí y con algunos materiales industrializados, tales como los bloques de hormigón, los ladrillos cerámicos huecos y los ladrillos cocidos macizos. A partir de este análisis, se concluyó que la revisión bibliográfica no es suficiente para obtener una estandarización de los valores de conductividad y transmitancia térmica de los materiales y los elementos constructivos naturales. Así mismo, a partir de las comparaciones de valores se pudo observar cómo se relacionan la densidad de los materiales y la de los morteros, según las distintas técnicas, con el comportamiento térmico y las resistencias mecánicas. Palabras clave: Adobe; arquitectura sostenible; bahareque; bloque de tierra comprimida-BTC; materiales vernáculos de construcción; propiedades térmicas; quincha; resistencia mecánica; tapial   Comparative analysis of the thermal aspects and mechanical resistances for materials and elements of earth construction Abstract The thermal characteristics and mechanical resistance of some materials and constructive elements elaborated with stabilized natural soils are analyzed. The methodology took into account the bibliographic compilation of primary and secondary sources and information from own tests, on density, thermal conductivity and resistance to compression, flexion and cutting, corresponding to adobe, BTC, tapia and wattle and daub, according to different authors. In addition, it was considered the values established by Argentine standards IRAM referring to the thermal conditioning of buildings. Comparisons were made with each other and with some industrialized materials such as concrete blocks, hollow ceramic bricks, and solid fired bricks. From this analysis, it was concluded that the literature review is not enough to obtain a standardization conductivity and thermal transmittance values of natural building materials and elements. Furthermore, from the comparisons of values it was possible to observe how the density of materials and mortars, according to the different techniques, are related to thermal behavior and mechanical resistance. Keywords: Adobe; sustainable architecture; bahareque; compressed earth block (BTC); vernacular building materials; thermal properties; quincha; mechanical strength; tapial; wattle; daub   Recibido: octubre 22 / 2018  Evaluado: septiembre 10 / 2019  Aceptado: octubre 15 / 2019 Publicado en línea: noviembre de 2019                               Actualizado: noviembre de 2019


Author(s):  
Rijk Block ◽  
Barbara Kuit ◽  
Torsten Schröder ◽  
Patrick Teuffel

<p>The structural engineering community has a strong responsibility to contribute to a more efficient use of natural resources. Nowadays the construction industry is by far the most resource intense industry sector, approximately 40-50% of all primary raw materials are used, which raises the question about the architects and engineer’s accountability. In this context and as a result of the Paris Climate agreement the Dutch government defined the program “Nederland Circulair in 2050”, which states the ambition to use 50% less primary materials in 2030 and to have a full circular economy in 2050.</p><p>One possible approach to achieve these ambitious goals is the application of renewable, bio-based materials in the built environment and to replace traditional, typically cement-based, materials. Already in the past natural building materials, such as timber and bamboo have been used widely, but in recent years new materials came up and provide new opportunities to be used in the construction industry. The authors explored various alternatives, such as hemp and flax fibres, mycelium and lignin-based fibres for composite materials, which will be described with various experimental and realised case studies.</p>


space&FORM ◽  
2021 ◽  
Vol 2021 (47) ◽  
pp. 31-44
Author(s):  
Jan Cudzik ◽  
◽  
Konstancja Olszewska ◽  

Nowadays, finding natural substitutes for mass-produced materials is one of the main tasks faced by scientists and designers. There is an increasing emphasis on the theme of ecology and the need for sustainability. Variants and methods are sought which will create environmentally friendly materials in a fast, relatively inexpensive and ecological way. The aim of this paper is to present different proposals of natural building materials and to demonstrate the research process in the search for an environmentally friendly facade material, analyzing it in terms of strength, durability and aesthetics. One of the reasons for this is the steadily deteriorating environmental conditions. Thus, architects strive to improve environmental safety.


2020 ◽  
Vol 1 (2) ◽  
pp. 6-12
Author(s):  
ilker bekir topçu

Many studies have been carried out on the problems of civil engineering with the change of human problems today and in the past. These studies contributed to the development of concrete technology. Concrete is an important building material consisting of mixing aggregate, cement and water with or without chemical and mineral additives since the first day of use. Concrete technology has made great progress and continues. With developing concrete technology, self-cleaning concretes have emerged. Many studies have been conducted on self-cleaning concretes by researchers. This article reviews the research published on self-cleaning concretes and presents its role in reducing environmental pollution and its place in future engineering studies. When we look at the studies on self-cleaning concretes that emerged as a result of the developments in concrete technology, it is seen that the developments have progressed considerably. Contemporary civil engineering has provided a highly effective solution for the solution of modern problems. Environmentally friendly building materials will fulfil their duty in reducing air pollution, one of the biggest problems of our time. Self-cleaning buildings and roads that reduce pollution may sound like futuristic ideas, but it is not far away to encounter these structures more widely in our country and our world.


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