scholarly journals Extrusion-Based Additive Manufacturing of Concrete Products: Revolutionizing and Remodeling the Construction Industry

2019 ◽  
Vol 3 (3) ◽  
pp. 88 ◽  
Author(s):  
Marco Valente ◽  
Abbas Sibai ◽  
Matteo Sambucci
Keyword(s):  
Additive Manufacturing ◽  
Construction Industry ◽  
Industrial Revolution ◽  
State Of The Art ◽  
Additive Technologies ◽  
Construction Sector ◽  
Fourth Industrial Revolution ◽  
The World ◽  
Hardened Properties ◽  
Traditional Manufacturing

Additive manufacturing is one of the main topics of the fourth industrial revolution; defined as Industry 4.0. This technology offers several advantages related to the construction and architectural sectors; such as economic; environmental; social; and engineering benefits. The usage of concrete in additive technologies allows the development of innovative applications and complexity design in the world of construction such as buildings; housing modules; bridges; and urban and domestic furniture elements. The aim of this review was to show in detail a general panoramic of extrusion-based additive processes in the construction sector; the main advantages of using additive manufacturing with the respect to traditional manufacturing; the fundamental requirements of 3D printable material (fresh and hardened properties), and state-of-the-art aesthetic and architectural projects with functional properties.

scholarly journals Effects of Polypropylene Fibers on the Mechanical Performance of a 3D Printable Mix

2021 ◽  
Vol 10 (8) ◽  
pp. 43-46
Author(s):  
Ankit Pal ◽  
A.K. Jain
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Additive Manufacturing ◽  
Industrial Revolution ◽  
Mechanical Performance ◽  
Polypropylene Fibers ◽  
Construction Sector ◽  
Construction Work ◽  
Fourth Industrial Revolution ◽  
Manufacturing Technique

Application of automation in construction work has now become need of the hour. Automation in construction work can be done by implementing a technique known as additive manufacturing technique. Use of additive manufacturing in construction sector has the potential to bring fourth industrial revolution by using 3D concrete printers. This paper is based ona parametric experimental study to evaluate the effect of Polypropylene (PP) fibers on mechanical properties of a 3D printable concrete. PP fibers were used invaryingpercentage ratio of 0.02, 0.04, 0.08, 0.12 and 0.16 of binder at constant W/B ratio.

Applicability and integration of concrete additive manufacturing in construction industry: A case study

2021 ◽  
pp. 095440542098610
Author(s):  
Mohamed Ramadany ◽  
Mohamed Saad Bajjou
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Construction Industry ◽  
State Of The Art ◽  
Construction Sector ◽  
Key Factors ◽  
Concrete Material ◽  
New Challenges ◽  
Printing Processes

The spread of additive manufacturing in recent years has broadened the sector of applications, namely in the construction field. This technology enables new functionalities and opportunities to be considered for the construction industry. Indeed, 3D printing processes can directly or indirectly affect the concrete material. Besides the printing processes for concrete structures, there are other indirect uses of 3D concrete printing, such as the manufacture of molds and formwork. However, its integration raises new challenges. This paper is first devoted to the state-of-the-art regarding the use of additive manufacturing in construction through a bibliographical study and an overview of various experiences in different countries. Secondly, the opportunities of such technologies for the construction sector will be discussed. Then, the issues and challenges related to the applicability and integration of concrete additive manufacturing will be highlighted. Finally, a diagnosis of the applicability and integration of concrete additive manufacturing has been made by analyzing the results of a survey of Moroccan professionals. The objective is to raise and identify key factors for successful integration.

scholarly journals Nanomaterials and additive technologies in prototyping of personal electric vehicles

2021 ◽  
Vol 1 (215) ◽  
pp. 34-41
Author(s):  
Stsiapan Yankevich ◽  
Keyword(s):  
Additive Manufacturing ◽  
Electric Vehicles ◽  
Industrial Revolution ◽  
Additive Technologies ◽  
Powder Materials ◽  
Virtual Design ◽  
Fourth Industrial Revolution ◽  
Electric Scooter

The article describes the process of creating prototypes of personal electric vehicles, in particular, an electric motorcycle and an electric scooter, carried out under the Fourth industrial revolution, characterized by the widespread introduction of additive manufacturing into production, nano -structured powder materials and completely virtual design and simulation.

scholarly journals Friction additive manufacturing technology: A state-of-the-art survey

2021 ◽  
Vol 13 (7) ◽  
pp. 168781402110344
Author(s):  
Huangyu Gao ◽  
Hongjun Li
Keyword(s):  
Additive Manufacturing ◽  
Industrial Revolution ◽  
Mechanical Performance ◽  
State Of The Art ◽  
Manufacturing Technology ◽  
Powder Bed ◽  
Friction Stir ◽  
Existing Problems ◽  
Additive Manufacturing Technology ◽  
Fourth Industrial Revolution

Additive manufacturing as a major component of the “fourth Industrial Revolution” is getting more and more attention. Friction additive manufacturing technology (FAM) is a subdivision of additive manufacturing technology. Because of its solid-state characteristics, deposition by FAM shows better mechanical performance than other technologies such as powder bed fusion technologies. This paper presents a state-of-the-art survey on the development of FAM in three categories: (i) Friction stir additive manufacturing; (ii) Friction surfacing additive manufacturing; (iii) Metal powder assisted additive manufacturing. The underlying principles, process parameters, microstructure, mechanical properties, and existing problems are described and discussed in detail.

The use of urban biowaste and excavated soil in the construction sector: A literature review

2021 ◽  
pp. 0734242X2110004
Author(s):  
Giulia Scialpi ◽  
Daniela Perrotti
Keyword(s):  
Literature Review ◽  
Construction Industry ◽  
Industrial Revolution ◽  
State Of The Art ◽  
Construction Material ◽  
Future Research ◽  
Construction Sector ◽  
Construction Techniques ◽  
Research Orientations ◽  
Urban Waste Management

Soil has been used as building material for thousands of years with a decrease in popularity after the industrial revolution. Nowadays, there is a growing interest in the implementation of unfired soil-based building solutions for their low environmental impact, performances and availability. Traditional soil construction techniques have recurrently included vegetal fibres to enhance soil performance and recent studies highlight a predominant use of agro- and non-agro-waste for unfired soil construction. The article reviews the state-of-the-art of the use of excavated soil and biowaste in the construction industry including a novel focus on urban-only waste and on building technologies using the integration of these two secondary construction material flows. Our literature review highlights a lack of references about the joint use of these secondary resources. Finally, future research orientations are suggested to promote their implementation in the building sector, which could improve urban waste management.

Desserts With Oasis—SkillGap Analysis Into Dubai’s Labour Intensive Market

2019 ◽  
Vol 118 (11) ◽  
pp. 533-541
Author(s):  
Dr. Premila Koppalakrishnan
Keyword(s):  
General Population ◽  
Industrial Revolution ◽  
Digital Transformation ◽  
Digital Revolution ◽  
Scholarly Community ◽  
Fourth Industrial Revolution ◽  
The World ◽  
Basic Level ◽  
The Revolution

The world stands on the precarious edge of an innovative transformation that will on a very basic level modify the manner in which we live, work, and identify with each other. In its scale, degree, and unpredictability, the change will be not normal for anything mankind has encountered previously. We don't yet know exactly how it will unfurl, however one thing is clear: the reaction to it should be incorporated and exhaustive, including all partners of the worldwide nation, from the general population and private segments to the scholarly community and common society. It is The Fourth Industrial Revolution, the digital revolution. The digital revolution has opened way for many impacts. All of the emirates are experiencing the effects of the “Fourth Industrial Revolution.” This revolution reflects the velocity, scope, and systems impact of a digital transformation that is changing economies, jobs, and work as it is currently known. Characteristics of the revolution include a fusion of technologies across the physical, digital, and biological spheres.

scholarly journals Construction Sector Contribution to Economic Stability: Malaysian GDP Distribution

2021 ◽  
Vol 13 (9) ◽  
pp. 5012
Author(s):  
Wesam Salah Alaloul ◽  
Muhammad Ali Musarat ◽  
Muhammad Babar Ali Rabbani ◽  
Qaiser Iqbal ◽  
Ahsen Maqsoom ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Construction Industry ◽  
Pearson Correlation ◽  
Impulse Response Function ◽  
Equilibrium Analysis ◽  
Construction Sector ◽  
Causality Test ◽  
Vector Error Correction ◽  
The World ◽  
Pearson Correlation Test

The construction sector exerts an exceptional impact on economic development all over the world. Adequate buildings and infrastructures made by the construction sector ensure that a country reaches certain targets like social development, industrialization, freight transportation, sustainable development, and urbanization. This study aims to determine the construction sector’s connectivity with other sectors through complex linkages that contribute immensely to the economy and gross domestic product (GDP). The data were collected from the Department of Statistics Malaysia and the World Bank from the year 1970 to 2019, and the Pearson correlation test, the cointegration test, and the Granger causality test were conducted. The vector error correction model (VECM) was created for short-term and long-term equilibrium analysis and impulse response function (IRF) was performed to study construction industry behavior. Afterwards, the forecasting was done for the year 2020 to 2050 of the Malaysian economy and GDP for the required sectors. It was revealed that some sectors, such as agriculture and services, have forward linkages while other sectors, such as manufacturing and mining, are independent of construction sector causality, which signifies the behavior of the contributing sectors when a recession occurs, hence generating significant revenue. The Malaysian economy is moving towards sustainable production with more emphasis on the construction sector. The outcome can be used as a benchmark by other countries to achieve sustainable development. The significance of this study is its usefulness for experts all over the world in terms of allocating resources to make the construction sector a sustainable sector after receiving a shock. A sustainable conceptual framework has been suggested for global application that shows the factors involved in the growth of the construction industry to ensure its sustainable development with time.

scholarly journals SCIENTIFIC AND TECHNOLOGICAL DEVELOPMENT AS A FACTOR OF ACCELERATING ECONOMIC GROWTH IN RUSSIA

2021 ◽  
Vol 230 (4) ◽  
pp. 237-244
Author(s):  
E.B. LENCHUK ◽  
Keyword(s):  
Economic Growth ◽  
World Economy ◽  
Large Scale ◽  
Industrial Revolution ◽  
Technological Development ◽  
Technological Basis ◽  
Fourth Industrial Revolution ◽  
The World ◽  
Sustainable Economic Growth ◽  
Scientific And Technological Development

The article deals with the modern processes of changing the technological basis of the world economy on the basis of large-scale transition to the use of technologies of the fourth industrial revolution, shaping new markets and opens up prospects for sustainable economic growth. It is in the scientific and technological sphere that the competition between countries is shifting. Russia remains nearly invisible player in this field. The author tried to consider the main reasons for such a lag and identify a set of measures of state scientific and technological policy that can give the necessary impetus to the scientific and technological development of Russia.

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