scholarly journals Nailing of Layers: A Promising Way to Reinforce Concrete 3D Printing Structures

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1518 ◽  
Author(s):  
A. Perrot ◽  
Y. Jacquet ◽  
D. Rangeard ◽  
E. Courteille ◽  
M. Sonebi
Keyword(s):  
3D Printing ◽  
Construction Industry ◽  
Fresh Concrete ◽  
Reinforce Concrete ◽  
Working Environment ◽  
Engineering Structures ◽  
Flexural Strengthening ◽  
Mechanical Performances ◽  
The Cost ◽  
Cost Of Construction

Today, the extrusion-based 3D printing of concrete is a potential breakthrough technology for the construction industry. It is expected that 3D printing will reduce the cost of construction of civil engineering structures (removal of formwork) and lead to a significant reduction in time and improve working environment conditions. Following the use of this additive manufacturing layer-wise process, it is required to change the way concrete structures are designed and reinforced, especially for the parts of the structure under tension loads. Indeed, the extrusion-based concrete 3D printing process does not allow for the production of conventional reinforced concrete, and there is a need to develop other ways of compensating for the low mechanical performances of concrete, particularly in tension. In this study, the reinforcement of printed structures by using steel nails through the deposited layers of fresh concrete was investigated. Additionally, three-layer and 10-layer samples were reinforced with nails with varying inclination and spacing. The results show that inclined nails can be used to provide a flexural strengthening of the printing material in different directions.

scholarly journals IMPROVING THE PROCESS OF MANAGING THE COST OF CONSTRUCTION OF AN OBJECT IN THE CONTEXT OF DIGITAL TRANSFORMATION OF THE INDUSTRY

2021 ◽  
Vol 9 (3) ◽  
pp. 56-60
Author(s):  
Irina Karakozova ◽  
Yuliya Prohorova
Keyword(s):  
Construction Industry ◽  
Continuous Process ◽  
Analytical Data ◽  
Digital Transformation ◽  
Information Environment ◽  
Information Modeling ◽  
Management Processes ◽  
Active Transition ◽  
The Cost ◽  
Cost Of Construction

Currently, there is an active transition of the investment and construction industry in the field of digitalization in many management processes. The main focus of the state is focused on the continuous process of managing information modeling technologies of a construction object at all stages of its life cycle, and the key element of this management process is the collection and publication of analytical data collected automatically by extracting the requested information from information systems about stages and critical points in urban development. Of particular importance is the automation of the process of managing the cost of the object and the creation of a unified information environment that takes into account possible factors of cost changes during the implementation of the construction object.

3D Printing Technology—A New Mode of Computer-Aided Style Design in This New Age

2013 ◽  
Vol 336-338 ◽  
pp. 1383-1386
Author(s):  
Jia He Zhang
Keyword(s):  
3D Printing ◽  
Construction Industry ◽  
Social Economic ◽  
Economic Benefits ◽  
Network Technology ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Computer Aided ◽  
The Cost ◽  
Art Industry

In recent years, information technology and network technology of China have much developed, promoting the growth of social economic benefits. Under such circumstances, the matter of how to reduce the cost and bring more benefit remains to be important. 3D printing technology is playing a more and more important role in style design, the construction industry and the art industry. The author has made a deep analysis on 3D printing technology based on her own observation and practice and has made a brief discussion as to how to fully apply 3D printing technology and how to promote computer-aided style design.

scholarly journals Trial Examination of Synthetic Polymer as Shear Reinforcement

2019 ◽  
Vol 9 (2) ◽  
pp. 481-489
Keyword(s):  
Construction Industry ◽  
Research Work ◽  
Synthetic Polymers ◽  
Synthetic Polymer ◽  
Alternative Source ◽  
Industry Waste ◽  
Steel Material ◽  
Increasing Demand ◽  
The Cost ◽  
Cost Of Construction

Steel Plays major role in the field of construction industry. Due to Rapid industrialization and urbanization has increased to twofolds the demand and usage of materials. Increasing demand creates depletion of material. Excessive waste plastic creates Environmental pollution, in order to reduce the waste it can be converted into polymers and can be used in the field of construction industry. Waste material can be used to replace the steel material in concrete as an alternative source. Usage of synthetic material increases day by day due to its advantages. A study was carried out to understand the behavior of synthetic polymers to be used in different fields. The research work is carried out for different polymers. It is found from the results that Strength of synthetic polymers is more when compared with other polymers and can be used as reinforcement in concrete there by reducing the weight of concrete member. The application of using synthetic polymer in concrete is not only limited to the weight reduction but also it reduces the cost of construction. Cost of construction can be reduced in the following ways, First it does not need skilled labors, second reduces the corrosion risks. Synthetic polymer has higher tensile strength compared to conventional steel polymer, hence more investigation to be carried out to expose the potentiality of the material

scholarly journals Utilisation of Foundry Sand in Concrete - A Review

2019 ◽  
pp. 383-386
Author(s):  
Sangavi D ◽  
Angu Senthil K
Keyword(s):  
Construction Industry ◽  
Environmental Sustainability ◽  
Fine Aggregate ◽  
River Sand ◽  
Foundry Sand ◽  
Waste Foundry Sand ◽  
The Cost ◽  
Strength And Durability ◽  
Cost Of Construction ◽  
Disposal Problem

A Rise in urbanization and industrialization has led to over utilization of natural river sand, which affects environmental sustainability. Nowadays, due to the massive demand of river sand, M-sand has been replaced effectively and being used in the construction industry. Although M-Sand is desirably used, it can lead to more water and cement requirement to achieve the expected workability which in turn increases the cost of construction. Thus as an alternative solution, industrial by-product like waste foundry sand can be used. When sand can no-longer be reused in the foundry, it is known as waste foundry sand. As it is discarded in a landfill, it tends to pose several environmental impacts. In order to reduce the disposal problem, waste foundry sand is reused in engineering applications. In this paper, various strength and durability properties have been studied, and an overview of some of the research works on the utilization of waste foundry sand in concrete were given. Fine aggregate is replaced with different proportions of waste foundry sand (0-100%). From the results obtained, the optimum % replacement of foundry sand is found to be in the range of 20% to 40% based on the grade of concrete.

scholarly journals An Investigation into the Significant Causes of Disputes in the Sri Lankan Construction Industry

10.29007/vbwk ◽  
2020 ◽  
Author(s):  
Vajira Edirisinghe ◽  
Dianne Marsh ◽  
Fiona Borthwick ◽  
Alison Cotgrave
Keyword(s):  
Sri Lanka ◽  
Dispute Resolution ◽  
Construction Industry ◽  
Construction Projects ◽  
Cost Optimization ◽  
Sri Lankan ◽  
Construction Disputes ◽  
Qualitative Descriptive ◽  
The Cost ◽  
Cost Of Construction

Disputes in construction projects affect not only delay in construction progress but also its cost and potentially its quality. The construction industry of Sri Lanka contributes significantly to its economy and the cost of construction disputes can influence its economic welfare. It is important to understand the significant disputes in the Sri Lankan construction industry in order to mitigate this cost. A qualitative descriptive study has been conducted through semi-structured questionnaires analyzed using a thematic approach. The sample comprised of 10-construction industry professionals all involved in the dispute resolution process. The literature identified 7 main dispute causes as being owner related, contractor related, project related, design related, contract related, human behavior related and consultant related. The interviews identified sub themes from each, which were then ranked in order to identify those that were most significant. It was found that many of the sub themes were inter related and that one cause could be the creation of another. The lack of appropriate communication between parties and lack of team spirit were identified as the genesis of disputes in the Sri Lankan construction industry. The next stage of this research is to identify the dispute resolution methods specific to Sri Lanka in order to develop a framework for cost optimization of dispute resolution methods that link specifically with the causes of dispute as identified in this study.

scholarly journals Geopolymer Concrete: A Review

2021 ◽  
pp. 5-8
Author(s):  
Gomasa Ramesh ◽  
Keyword(s):  
Greenhouse Gases ◽  
Construction Industry ◽  
Co2 Emissions ◽  
Cement Content ◽  
Geopolymer Concrete ◽  
Construction Sector ◽  
Conventional Concrete ◽  
Binding Material ◽  
The Cost ◽  
Cost Of Construction

Geopolymer Concrete is a new innovative type of concrete, and it is used widely in the construction industries. This type of concrete comes into place due to reduced cement content usage in the construction of structures. Already we are using cement as a binding material widely in the construction sector, but the problem is due to the cement content Co2 emissions are mainly produced and one more problem is greenhouse gases are increasing rapidly during the manufacturing of cement. Then after a lot of researchers, finally we got a geopolymer as a replacement for cement. By replacing cement content with geopolymer, we can reduce the cost of construction and reuse the structural materials. So, this type of concrete is different from standard conventional concrete. We can minimize Co2 and greenhouse gases’ problem in the atmosphere and make the structure an environmentally friendly solution. So, this type of concrete is very famous in the construction industry, and there are benefits also excellent. So, it can be used widely in construction sectors worldwide. This paper may help understand Geopolymer Concrete for everyone quickly. It gives a quick review of the Geopolymer Concrete.

scholarly journals Improvement of methods for determining the cost of design documentation in construction

2018 ◽  
Vol 212 ◽  
pp. 09005
Author(s):  
Tatiana Dobysheva ◽  
Ekaterina Gladkova
Keyword(s):  
Construction Industry ◽  
Structural Elements ◽  
Advantages And Disadvantages ◽  
Construction Products ◽  
Design Documentation ◽  
The Russian Federation ◽  
Design Objects ◽  
Definition Of ◽  
The Cost ◽  
Cost Of Construction

The problems of definition of the cost of design in construction are considered in the article. The existing regulatory documentation for determining the value of construction products on the territory of the Russian Federation is analyzed. A comparative analysis of the currently used methods for calculating the cost of designing is executed. The advantages and disadvantages of each method are considered, and the necessity of transformations in the sphere of determining the cost of design works is substantiated. The ways of increasing accuracy of calculation of the cost of design in construction are suggested, including the use of the territorial coefficient in calculations when utilizing the method of dependence on the natural indicators of the design objects. It is revealed that the use of this coefficient significantly increases the accuracy of calculations. For the method of calculating the cost of design as a percentage of the total cost of construction, it is proposed to clarify the methodology for calculating the cost of construction of multi-apartment buildings according to the enlarged construction price standards. It is proved that today it is impossible to replace the value of individual structural elements of an object in the event of differences in the design solutions with the solutions represented by similar objects in the collection of the construction price standards. The ways of solving these issues by the use of collections of standards for the price of construction solutions are outlined. The authors are convinced that the improvement of methods for calculating the cost of design products will improve the efficiency of investments in the construction industry.

scholarly journals Geopolymer Concrete: A Review

2021 ◽  
Vol 1 (2) ◽  
pp. 5-8
Author(s):  
Gomasa Ramesh
Keyword(s):  
Greenhouse Gases ◽  
Construction Industry ◽  
Co2 Emissions ◽  
Cement Content ◽  
Geopolymer Concrete ◽  
Construction Sector ◽  
Conventional Concrete ◽  
Binding Material ◽  
The Cost ◽  
Cost Of Construction

Geopolymer Concrete is a new innovative type of concrete, and it is used widely in the construction industries. This type of concrete comes into place due to reduced cement content usage in the construction of structures. Already we are using cement as a binding material widely in the construction sector, but the problem is due to the cement content Co2 emissions are mainly produced and one more problem is greenhouse gases are increasing rapidly during the manufacturing of cement. Then after a lot of researchers, finally we got a geopolymer as a replacement for cement. By replacing cement content with geopolymer, we can reduce the cost of construction and reuse the structural materials. So, this type of concrete is different from standard conventional concrete. We can minimize Co2 and greenhouse gases’ problem in the atmosphere and make the structure an environmentally friendly solution. So, this type of concrete is very famous in the construction industry, and there are benefits also excellent. So, it can be used widely in construction sectors worldwide. This paper may help understand Geopolymer Concrete for everyone quickly. It gives a quick review of the Geopolymer Concrete.

scholarly journals Analysis, Design and Estiamation of High Rised RCC Residential Apartment (S+G+10) by using Staad. Pro software

2021 ◽  
Vol 10 (11) ◽  
pp. 6-11
Author(s):  
N. Krithi ◽  
◽  
B. Venkata Siva ◽  
T Pradeep Kumar ◽  
P V Vishnu Vardhan Reddy ◽  
...  
Keyword(s):  
Construction Industry ◽  
Cost Estimation ◽  
Response Spectrum ◽  
Seismic Loads ◽  
Engineering Structures ◽  
Seismic Zones ◽  
Zone Ii ◽  
Analysis Design ◽  
The Cost ◽  
Made In

Civil Engineering Structures which are been constructed and are being constructed were mostly analysed and designed using STAAD.PRO software and the cost estimation is made in MS Excel. As both these tools have made the analysis, design and estimation an easier task. But in discussing about in favour of these, durability of many structures are failing in seismic zones. As to make this as a note many engineers and researchers are been struggling in solving the problem of failures in the construction Industry. Here, we are considering a method of response spectrum in ZONE-II. By considering this method would able to control the structure against failure to seismic loads. Then while on coming to estimation of the structure, the only thing that worries is when execution started the cost either may increases or may decreases. We, in this research paper have given the factors that influence the change in cost of project on pre-construction and post construction.

Analysing the perceptions of UK building contractors on the contributors to the cost of construction plant theft

2013 ◽  
Vol 18 (2) ◽  
pp. 128-141 ◽  
Author(s):  
Olusanjo O. Fadiya ◽  
Panos Georgakis ◽  
Ezekiel Chinyio ◽  
Peter Akadiri
Keyword(s):  
Construction Industry ◽  
Productivity Loss ◽  
Insurance Premium ◽  
Reliable Estimate ◽  
Replacement Cost ◽  
Content Type ◽  
Construction Plant ◽  
The Uk ◽  
The Cost ◽  
Cost Of Construction

PurposeThe purpose of this paper is to consider the significance of the sources of cost of construction plant theft identified in previous studies and derive rates which can enhance proper estimation of the cost of plant theft to the construction industry. The direct and indirect costs of plant theft include replacement cost (new‐for‐old/depreciated), emergency cost, hire replacement cost, productivity loss, increased labour cost, loss of goodwill, administration cost, increased insurance premium and social cost.Design/methodology/approachThe cost‐contribution of these various sources was studied, using a structured questionnaire which was administered to building contractors in the UK construction industry, to measure their opinions of the frequency and severity of the contribution of the sources to the cost of construction plant theft. The questionnaires were administered to 220 companies and 51 of them were fully completed, representing 23.1 per cent of the original sample. The responses were analysed using descriptive and inferential statistics to derive the probabilities of sources contributing to the cost of plant theft.FindingsThe results of the analysis show that the rates of contribution to the cost of plant theft varies significantly between the sources, with “loss of output” and “increased insurance premium” ranking as the top‐two costs of plant theft in the UK construction industry. The rates derived in this study can be used by contractors to reasonably estimate the cost of plant theft, especially when there is need to justify the adoption of measures that can mitigate plant theft.Originality/valueThis study generated rates of contribution by factors which contribute to the overall cost of theft of construction plant in the UK. These rates can provide a more reliable estimate of the cost of plant theft than current estimations which vary significantly.

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