scholarly journals Sustainable Test Methods for Construction Materials and Elements

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 606 ◽  
Author(s):  
Ewa Szewczak ◽  
Agnieszka Winkler-Skalna ◽  
Lech Czarnecki
Keyword(s):  
Building Materials ◽  
Negative Impact ◽  
Construction Materials ◽  
Test Methods ◽  
Material Behavior ◽  
Sustainable Building ◽  
Methods Development ◽  
Test Models ◽  
Complete Test ◽  
The One

The laboratory testing of the construction materials and elements is a subset of activities inherent in sustainable building materials engineering. Two questions arise regarding test methods used: the relation between test results and material behavior in actual conditions on the one hand, and the variability of results related to uncertainty on the other. The paper presents the analysis of the results and uncertainties of the simple two independent test examples (bond strength and tensile strength) in order to demonstrate discrepancies related to the ambiguous methods of estimating uncertainty and the consequences of using test methods when method suitability for conformity assessment has not been properly verified. Examples are the basis for opening discussion on the test methods development direction, which makes possible to consider them as ‘sustainable’. The authors address the negative impact of the lack of a complete test models taking into account proceeding with an uncertainty on erroneous assessment risks. Adverse effects can be minimized by creating test methods appropriate for the test’s purpose (e.g., initial or routine tests) and handling with uncontrolled uncertainty components. Sustainable test methods should ensure a balance between widely defined tests and evaluation costs and the material’s or building’s safety, reliability, and stability.

Investment of Steel Reinforcement Extracted from Destroyed Buildings in Iraq

2020 ◽  
Vol 897 ◽  
pp. 166-172
Author(s):  
Zahraa Ali Jalil ◽  
Hafeth I. Naji ◽  
Mohammed Mahmood
Keyword(s):  
Natural Resources ◽  
Building Materials ◽  
Negative Impact ◽  
Steel Reinforcement ◽  
The Other ◽  
Effective Management ◽  
Building Information Modelling ◽  
Building Information ◽  
Management Method ◽  
The One

The number of destroyed cities in Iraq has increased significantly over the last five years. It presents a negative impact on the country's economy on the one hand and on the environment on the other. Reconstruction of these cities requires substantial capital to provide building materials needed for reconstruction and this leads to depletion of natural resources. This paper aims at finding an effective management method that contributes to the investment of the remnants of the components of destroyed buildings, including reinforcing steel, using the building information modelling (BIM) technique. The results showed that the amount of steel reinforcement that can be obtained from the destroyed buildings is enormous. Therefore, these quantities must be addressed through reusing or recycling. The sale of these quantities as recycling materials can provide a large income which can be added to the capital of the project.

Effective Factors on Eco Labeling Building-Construction, Materials and Components

2011 ◽  
Vol 374-377 ◽  
pp. 1254-1257
Author(s):  
Nima Amani ◽  
Seyedmohsen Hosseini
Keyword(s):  
Building Materials ◽  
Construction Materials ◽  
Green Building ◽  
Future Generation ◽  
Outdoor Environment ◽  
Sustainable Building ◽  
Suitable Material ◽  
Specific Factors ◽  
Consistent Basis ◽  
Sustainable Building Materials

There is need to assess the potential of the construction materials for the green building future generation. Research is necessary for complete assessment of construction materials for present and future generation of green building. This paper provides a consistent basis and specific factors for construction materials based on eco-labeling sciences. Within the methodological framework, three categories of sustainable building materials’ implementation are discussed: economical implementation; environment implementation; and social implementation. The paper shows that green building improvements can be achieved with help of the choice materials based on existing factors of eco-labeling construction. Construction eco-labeling can help to select a suitable material for creating a better outdoor environment and indoor environment of building.

scholarly journals Iron and Aluminium Production Wastes as Exclusive Components of Alkali Activated Binders—Towards a Sustainable Alternative

2021 ◽  
Vol 13 (17) ◽  
pp. 9938
Author(s):  
Nuno Cristelo ◽  
Fernando Castro ◽  
Tiago Miranda ◽  
Zahra Abdollahnejad ◽  
Ana Fernández-Jiménez
Keyword(s):  
Co2 Emissions ◽  
Building Materials ◽  
Negative Impact ◽  
Raw Materials ◽  
Construction Materials ◽  
Heat Of Hydration ◽  
Sustainable Construction ◽  
Alkaline Solutions ◽  
By Products ◽  
Alkali Activated

The sustainability of resources is becoming a worldwide concern, including construction and building materials, especially with the alarming increase rate in global population. Alternative solutions to ordinary Portland cement (OPC) as a concrete binder are being studied, namely the so-called alkali-activated cements (AAC). These are less harmful to the environment, as lower CO2 emissions are associated with their fabrication, and their mechanical properties can be similar to those of the OPC. The aim of developing alkali-activated materials (AAM) is the maximization of the incorporated recycled materials, which minimises the CO2 emissions and cost, while also achieving acceptable properties for construction applications. Therefore, various efforts are being made to produce sustainable construction materials based on different sources and raw materials. Recently, significant attention has been raised from the by-products of the steelmaking industry, mostly due to their widespread availability. In this paper, ladle slag (LS) resulting from steelmaking operations was studied as the main precursor to produce AAC, combined with phosphating bath sludge—or phosphate sludge (PS)—and aluminium anodising sludge (AS), two by-products of the surface treatment of metals, in replacement rates of 10 and 20 wt.%. The precursors were activated by two different alkaline solutions: a combination of commercial sodium hydroxide and sodium silicate (COM), and a disposed solution from the cleaning of aluminium extrusion steel dies (CLE). This study assesses the influence of these by-products from the steelmaking industry (PS, AS and CLE) on the performance of the alkali-activated LS, and specifically on its fresh and hardened state properties, including rheology, heat of hydration, compressive strength and microstructure and mineralogy (X-ray diffraction, scanning electron microscopy coupled with energy dispersive spectroscopy and Fourier transform infra-red. The results showed that the CLE had no negative impact on the strength of the AAM incorporating PS or/and AS, while increasing the strength of the LS alone by 2×. Additionally, regardless of the precursor combination, the use of a commercial activator (COM) led to more fluid pastes, compared with the CLE.

Barriers to the use of sustainable materials in Australian building projects

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sheetal Gounder ◽  
Abid Hasan ◽  
Asheem Shrestha ◽  
Abbas Elmualim
Keyword(s):  
Construction Industry ◽  
Building Materials ◽  
Construction Materials ◽  
Building Projects ◽  
Sustainable Building ◽  
Content Type ◽  
Sustainable Materials ◽  
Main Barrier ◽  
Economic Considerations ◽  
Sustainable Building Materials

PurposeAlthough the adverse effects of construction activities on the environment and the need for sustainable construction practices are recognised in both research and practice, any significant shift in the selection and use of construction materials from the sustainability perspective has not taken place in many building projects. Still, conventional construction materials are widely used in building projects in both developed and developing countries. This study attempts to identify the main barriers to the use of sustainable materials in building projects in an advanced economy such as Australia.Design/methodology/approachThis study adopted a questionnaire survey approach to examine the main reasons behind the low usage of sustainable materials in building projects. Based on the relative importance index, exploratory factor analysis and multinomial logistic regression analysis, the study examined the main barrier measures and barrier factors to the use of sustainable materials in building projects.FindingsThe findings reveal that critical barriers to the use of sustainable materials are related to cost and profit considerations, the unwillingness of the key stakeholders to incorporate these materials into building projects, lack of incentives and government policies. The factor analysis reduced the critical barrier measures into three factors: techno-economic considerations, cost and delay concerns and resistance to use. Furthermore, multinomial regression analysis based on the extracted factors identified techno-economic considerations as the main barrier factor to the use of sustainable materials in building projects.Practical implicationsThe empirical results of this research can inform construction practitioners, organisations and policymakers on how to increase the use of sustainable building materials in the construction industry.Originality/valueIdentification of barriers to the use of sustainable building materials is a prerequisite to improve their uptake and use in the construction industry. The study fills a gap in the existing research on the use of sustainable materials in building projects in Australia.

scholarly journals The Use Potential of Traditional Building Materials for the Realization of Structures by Modern Methods of Construction

2015 ◽  
Vol 10 (2) ◽  
pp. 127-138 ◽  
Author(s):  
Marcela Spišáková ◽  
Daniela Mačková
Keyword(s):  
Lower Energy ◽  
Building Materials ◽  
Construction Materials ◽  
Energy Costs ◽  
Sustainable Building ◽  
Construction Market ◽  
Building Systems ◽  
Modern Methods ◽  
Natural Building ◽  
Modern Building

Abstract The sustainable building has taken off in recent years with many investors looking for new and different methods of construction. The traditional building materials can be made out of natural materials, while others can help to lower energy costs of the occupant once built. Regardless of what the goal of the investor is, traditional building materials and their use is on the rise. The submitted paper provides an overview of natural building materials and possible modern building systems using these construction materials. Based on the questionnaire survey is defined the use potential of traditional building materials for the realization of the construction by methods of modern constructions and then are determined the drivers and barriers of traditional materials through using modern methods of construction. Considering the analysis of the achieved results, we can identify the gaps in the construction market in Slovakia and also to assess the perception of potential investors in the field of traditional building materials use, which is the purpose of submitted paper.

scholarly journals On commercialization of waste rock dumpsand the role of drilling and blasting operations in this process

2021 ◽  
pp. 110-113
Author(s):  
S.N. Zharikov
Keyword(s):  
Russian Federation ◽  
Building Materials ◽  
Negative Impact ◽  
Raw Materials ◽  
Open Pit ◽  
Open Pit Mining ◽  
Processing Plants ◽  
Significant Negative Impact ◽  
The Russian Federation ◽  
The One

On the territory of the Russian Federation, exactly as in the rest of the world, huge amounts of mining waste have been accumulated. Most of them in open-pit mining are dumps of rock mass that occupy huge territories and have a significant negative impact on the earth's ecology. Most of the dumps are non-toxic and can be used for economic purposes where sand and stone are needed-in construction. However, the volumes are too large and only a small part can be used for the production of building materials. Another thing is if you need a large amount of rock for the construction of a long roadbed. There are other requirements for raw materials and the possibility of releasing large areas occupied by dumps. This direction has significant potential, because on the one hand, cheap construction raw materials, and on the other – a reduction in fees for the use of land (especially relevant for large mining and processing plants). The development of dumps as man-made deposits has its own risks and associated problems. However, it leads to the development of new technological solutions, which in turn opens up certain prospects for subsoil users. Currently, this direction is in its infancy, but the scale of the problem of storing dumps is already obvious. Therefore, despite the doubts, recycling of dumps is inevitable. It is also clear that this processing should be in huge volumes. And such volumes of use in the Russian Federation can only be achieved when building roads.

Traditional Building Materials for Innovative Envelope

2012 ◽  
Vol 253-255 ◽  
pp. 358-366
Author(s):  
Grazia Lombardo
Keyword(s):  
Building Materials ◽  
Construction Materials ◽  
Building Design ◽  
Natural Stone ◽  
Technological Innovations ◽  
Sustainable Building ◽  
Existing Building ◽  
First Results ◽  
Traditional Construction ◽  
Definition Of

The present paper is part of a research that is developed within the sustainable building design through the revisiting of the traditional construction materials. The results obtained show that the natural stone, enhanced by technological innovations, are often capable of providing excellent performance. Based on the tests, it was possible to verify and validate the hypothesis that the proposed new system of external vertical opaque enclosure consisting in a panel in dry-assembled and pre-compressed blocks of natural stone through reinforcing steel, has good performances when used both in the case of new design in the case of recovery of modern buildings, when the intervention is being addressed within of an overall building improvement regarding the security, sustainability, functionality and image. This paper reports the first results obtained by the study of the feasibility of the envelope being tested, through the definition of all the details of links with the existing building structure.

USING THE METHODOLOGY OF "GREEN" CONSTRUCTION FOR RATING EVALUATION OF ROADS

2019 ◽  
pp. 84-93
Author(s):  
Konstantin Pugin
Keyword(s):  
Building Materials ◽  
New Technologies ◽  
Negative Impact ◽  
Raw Materials ◽  
Construction Materials ◽  
Road Construction ◽  
Environmental Safety ◽  
Physicochemical Condition ◽  
Term Operation ◽  
Green Construction

The use of new technologies and raw materials, including man-made materials, in the production of con-struction and road materials increases the risks of forming a negative technogenic load on environmental objects when used in road construction. This is of particular relevance due to the fact that the road network has a long extension in the settlements and as a result has a negative impact on the person. A new methodolo-gy for "green" construction, which is currently being effectively used in a number of developed European countries, can give a comprehensive assessment of the emergence of risks. On the basis of analytical and la-boratory studies it is shown that the methodology of "green" construction used for the evaluation of residen-tial and industrial buildings can not be applied to the evaluation of road construction objects. When as-sessing the building materials used in road construction, the change in their physicochemical condition dur-ing long-term operation in the elements of road structures is not taken into account. It is shown that the emis-sion of environmentally hazardous chemical compounds that make up construction materials increases with the cyclicity of the pH of the medium of their placement, the discontinuity of the surface. It was proposed to include such provisions as "protection from the aquatic environment", "stable pH values of the external envi-ronment" for the formation of a rating system for assessing the "green" construction of motor roads in order to ensure environmental safety.

scholarly journals A State-of-the-Art Review on Core–Shell Pigments Nanostructure Preparation and Test Methods

Micro ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 55-85
Author(s):  
Kwok Wei Shah ◽  
Ghasan Fahim Huseien ◽  
Harn Wei Kua
Keyword(s):  
Building Materials ◽  
Elevated Temperatures ◽  
State Of The Art ◽  
Construction Materials ◽  
Test Methods ◽  
Core Shell ◽  
Coating Materials ◽  
Potential Core ◽  
Novel Technologies ◽  
Shell Nanostructures

Uses of novel technologies for improving the durability and lifespan of the construction materials have emerged as viable solutions toward the sustainable future wherein the coating industry plays a significant role in economy growth and better livelihoods. Thus, the continual innovation of various technologies to introduce diverse market products has become indispensable. Properties of materials like color stability under UV, elevated temperatures and aggressive environments, and skid and abrasion resistance are the main challenges faced by commercial coating materials, leading to more demand of natural materials as sustainable agents. Lately, nanostructured core–shell pigments with unique compositions have widely been utilized in composite materials to enhance their properties. Core–shell particles exhibit smart properties and have immense benefits when combined with building materials. Based on these facts, we comprehensively overviewed the state-of-the-art research of core–shell nanomaterials in terms of their preparation and performance evaluation methods, as well as feasible applications. The first part of this article discusses effective shell materials, including most common silica and titanium oxides. In addition, nanotechnology enabling the production and patterning of low-dimensional materials for widespread applications is emphasized. The second part deals with various potential core materials used to achieve core–shell nanostructures. The third part of this paper highlights some interesting mechanisms of core–shell structures in the modified systems that display high stability, durability, efficiency, and eco-friendliness. Finally, different applications of these core–shell nanostructures are underscored together with their test methods to evaluate their performances.

scholarly journals Risk management of the negative impacts of building materials produced of production wastes on the environmental medium

Vestnik MGSU ◽  
2015 ◽  
pp. 73-87
Author(s):  
Konstantin Georgievich Pugin ◽  
Yakov Iosifovich Vaysman
Keyword(s):  
Building Materials ◽  
Negative Impact ◽  
Construction Materials ◽  
Environmental Safety ◽  
Secondary Emission ◽  
Environmental Risks ◽  
Production Waste ◽  
Anthropogenic Factors ◽  
Waste Products ◽  
Negative Impacts

Basing on life cycle analysis of building materials produced of waste products the authors defined the formation stages of environmental risks of adverse impacts on the environment. The studies have revealed that one of the main environmental risks is the occurrence of secondary emission of pollutants from building materials produced of waste products when used by the end-user, which is not taken into account by the existing regulatory documents defining the environmental safety of construction materials. The questions of prevention of the possible negative impact of the construction materials based on or with addition of production waste while their use on the environment and population as a result of a number of natural and anthropogenic factors, which can lead to negative ecological effects, which are difficult to forecast, are not regulated enough. In the present conditions of the absence of regulatory framework of their ecological safety the wide use of production waste for obtaining construction materials without account for the possible ecological risks may lead to technogenic burden exceeding the acceptable level.The authors defined the main ways to reduce the environmental risks when using the resource potential of waste for the production of building materials by reducing the emissions of these pollutants while reducing their permeability.

Sign in / Sign up

Export Citation Format

Share Document