scholarly journals Investigation on Construction Solid Wastes Management within Building Sites Environment in Kigali City

2019 ◽  
Vol 6 (1) ◽  
pp. 1-10
Keyword(s):  
Reinforced Concrete ◽  
Waste Management ◽  
Waste Oil ◽  
Construction Sites ◽  
Chemical Waste ◽  
Construction Companies ◽  
Top Soil ◽  
Soil Site ◽  
Scrap Metals ◽  
The Cost

The largest volume of construction work in the country is mainly concentrated in this city and improper demolition of construction waste cause improper handling to construction sites. The general objective of the study will investigate on the construction solid and demolition waste management in Kigali City. A cross sectional survey among the construction companies was conducted from 60 contractors by purposive sampling. The research targeted all construction practitioners in various active sites of Kigali city. Sources of data for this study were obtained through questionnaires, interviews and site surveys. Descriptive statistics will be applied to analyze quantitative and qualitative data through SPSS 16 and STATA 13.0 computer package. Analysis of Variance was used to test the relationship between Methods of CSWM and its types of demolished waste by level of satisfaction. The key findings showed that the most construction solid waste identified on construction sites were woods; scrap metals; cement; bricks and trees respectively and the construction companies suggested that those wastes are available on their construction sites and they should be demolished properly. The second category of CSWM identified were insulation; nails; plaster; rocks; dirt and asbestos respectively according to their means and standard deviation. Furthermore, for thermal treatment, the study findings concluded that there is open burning and the respondents were fairly on the adopted methods for waste treatment. Secondary there are incineration and Pyrolysis which are used to treatment waste from construction sites and all respondents were not satisfied on their application to treat waste. Lastly the study findings concluded that there are gasification and is not usually used as the heads of sites were very unsatisfied. The cost associated with SWM for practitioners and it is ranged from 6,000,000Frws-9,000,000Frws used cost of Vegetation/ top soil (site clearance), cost of reinforced concrete, cost of Scrap metals, cost of rocks and municipal waste respectively to clean the construction environment.The next category of cost was valued in ranged of waste costing above 3,000,000Frws-6,000,000Frws and those were the cost of bricks/ tiles demolition, cost of wooden materials and other non inert waste demolition, cost of debris of pipes demolition, cost of sewage demolition and cost of chemical waste (waste oil, lubricants, paints& solvents) demolition from the construction sites respectively. The revenues associated on CSWM ranged from 6,000,000Frws -9,000,000Frws for Vegetation/ top soil (site clearance), Reinforced concrete, Scrap metals, Wooden materials and other non inert waste and Municipal waste management that may generate high level of incomes; and from 3,000,000Frws-6,000,000Frws for Rocks, Sewage and Chemical waste (waste oil, lubricants, paints& solvents) waste.

scholarly journals Optimization of the organization of the forest road construction 

2019 ◽  
Author(s):  
А.Х. Мохамед ◽  
Н.А. Тюрин
Keyword(s):  
Operating Cost ◽  
Road Construction ◽  
Construction Sites ◽  
Forest Road ◽  
The Road ◽  
Construction Companies ◽  
The Earth ◽  
Machine Group ◽  
The Cost ◽  
Forest Road Construction

Основной целью работы является оптимизация использования машин для земляных работ в строительстве лесных дорог по критерию минимума приведенных расходов, путем оптимального распределения комплектов машин по объектам строительства при условии возможности аренды какихлибо дополнительных машин. Создана экономикоматематическая модель расчета эффективной структуры парка машин с точки зрения системы производственной эксплуатации, которая складывается из эффектов всех специализированных комплектов машин и эффекта от передачи машин парка в аренду. Учет возможности передачи или получения техники в аренду позволяет улучшить техникоэкономические показатели эксплуатации парка машин. Результаты работы могут быть востребованы лесозаготовительными и дорожностроительными предприятиями в период проектирования производства земляных работ, обновления машинных парков, а также при выборе наилучшего варианта использования имеющегося парка, прогнозирования продолжительности и стоимости ведения механизированных работ. The main purpose of this work is to optimize the earthmoving machinery utilization in the forest road construction, by minimize the operating cost. That goal may achieve by the optimal distribution of the machine combination in the construction sites, with the ability of renting additional machines. Economical mathematical model has been developed for calculating the effective structure of the machine group to achieve the required productivity. The possibility of hire and rent machines allows the manager to improve the technical economic decision for the machines operation. By using the developed model it can gives good results to having better decisions for planning and designing the earth working operations in the road construction companies, renovation of the machine parks, as well as the choosing the best option for using the existing machine combination, predicting the duration and predicting the cost of the whole work.

scholarly journals APPLICATION OF LEAN TOOLS IN CONSTRUCTION OF REAL ESTATE PROJECT .

2021 ◽  
Vol 10 (4) ◽  
pp. 43-54
Keyword(s):  
Real Estate ◽  
Construction Project Management ◽  
Cost Overrun ◽  
Construction Sites ◽  
Lean Principles ◽  
The Real Estate ◽  
Construction Companies ◽  
Real Estate Project ◽  
Growth Prospects ◽  
The Cost

In the Indian economy, the real estate industry is of significant importance as it contributes between 6-8% to the Indian gross domestic product (GDP). Indian real estate building has fantastic growth prospects. Some Challenges such as Waste generation, Lack of skilled labour, Time overrun, Cost Overrun, Low Productivity etc. Average cost of waste as Proportion of cost of the project, excluding the cost of Performance varied from 5.38% to 14.70%.for Waste reduction and improve the productivity construction companies have started improvement through Lean Construction. It is essential to recognize waste and its related root causes at Indian construction sites in order to adopt lean principles, in which a major focus is on waste minimization. To evaluate the goals and functionalities of each LC instrument, a systematic literature review will be carried out. The functionality of lean software must be consistent with the accompanying procedures in order to effectively implement LC. The work presented would assist construction project management in making informed decisions on construction sites to schedule, handle, and monitor work activities related to equipment.

The Mitigation of the French Nuclear Option: New Industrial Realism and Technical Democracy

2002 ◽  
Vol 13 (2) ◽  
pp. 263-279 ◽  
Author(s):  
Dominique Finon
Keyword(s):  
Waste Management ◽  
Electricity Markets ◽  
Social Preferences ◽  
Public Inquiry ◽  
The Future ◽  
Parliamentary Committee ◽  
Set Up ◽  
The Stability ◽  
The Cost ◽  
Phase Out

Nuclear phase-out policies and the European obligation to liberalise electricity markets could put the French nuclear option dramatically at risk by influencing social preferences or by constraining power producers' investment choices in the future. So far, the particular institutional set-up which has allowed the efficient build-up and operation of several series of standardised reactors preserves the stability of the main elements of the option. However, important adaptations to the evolving industrial and political environment occur and contribute to changing the option. Some institutional changes (such as local public inquiry, creation of a Parliamentary committee, independence of safety authorities) and divergence between industrial interests already allow debates on internal options such as reprocessing, type of waste management deposits, ordering of an advanced PWR. These changes improve the cost transparency, even if internalisation of nuclear externalities (cost of insurance, provisions for waste management) is still incomplete. However, when effective, this internalisation would not affect definitively the competitive position of the nuclear production because of the parallel internalisation of CO2 externalities from fossil fuel power generation in the official rationale. Consequently the real issue for the future of the nuclear option in France remains the preservation of social acceptability in the perception of nuclear risks.

Measuring the Causes of Saudi Arabian Construction Accidents: Management and Concerns

2020 ◽  
Vol 10 (2) ◽  
pp. 108-14
Author(s):  
Majed M Moosa ◽  
Leo P. Oriet ◽  
Abdulrahman M Khamaj
Keyword(s):  
Saudi Arabia ◽  
Saudi Arabian ◽  
Safety Performance ◽  
Construction Sites ◽  
New Employees ◽  
Factors Affecting ◽  
Safety Issues ◽  
Construction Companies ◽  
Level Data ◽  
Construction Accidents

Introduction: Research indicate that construction site accidents are a global concern, and rates are rapidly increasing. In developing countries such as Saudi Arabia, safety issues are frequently ignored, and little is known about their causes. Objectives: This study aimed to shed light on factors causing accidents in Saudi Arabian construction companies. Methods: An online detailed survey, using Google Form, of accident features was distributed randomly to potential employees in 35 construction companies in Saudi Arabia, where one of the top administrators or safety officers were required to respond to the survey. It was conducted from 1st June to 31st August, 2013. The safety practices and perceptions of accident causes were assessed. Results: The response rate was 63%. Over half of the surveyed organizations encountered all of the selected accident types. While 19 (86%) of the construction companies maintained the equipment regularly, 15 (68%) had regular maintenance staff and 13 (59%) inspected the equipment before use. Although 18 (82%) of the workers were supplied with personal protective equipment (PPE), only 12 (55%) emphasized its use and offered site orientation for new employees.  In the last part of the survey, respondents were requested to rate 25 factors affecting safety performance at the construction sites on a scale of 1 to 5, with 5 being the most important. The three most important factors of poor safety performance were the firm's top leaders, a lack of training, and the reckless operation of equipment. Conclusion: Changing attitudes of surrounding safety culture have the potential to significantly improve safety outcomes in the Saudi Arabian construction industry. Two Saudi Arabian corporations, Saudi Aramco and Saudi Chevron Petrochemical provide a positive model for increasing construction safety in the country, but there is a paucity of industry-level data. Further scholarly attention is strongly indicated.

scholarly journals ANALISIS PENERAPAN AKUNTANSI LINGKUNGAN TERHADAP BIAYA OPERASIONAL PENGELOLAHAN LIMBAH PADA RUMAH SAKIT PANCARAN KASIH MANADO

2018 ◽  
Vol 13 (04) ◽  
Author(s):  
Aldy V. J Ratulangi ◽  
Sifrid Pangemanan ◽  
Victorina Tirayoh
Keyword(s):  
Waste Management ◽  
Medical Devices ◽  
Accounting Standards ◽  
Environmental Accounting ◽  
Government Accounting ◽  
The Cost ◽  
Health Experts

The hospital is an institution engaged in the field of health, where the service provided by doctors, nurses and health experts. In its activities, hospitals use medical devices mostly made of materials that are difficult to decompose. These medical devices, when finished are used to be waste, and waste from the hospital could potentially transmit the disease. Therefore, hospitals must have a guideline on the cost of waste management, so that the existing waste can be managed properly. Environmental Accounting is present as a guide on waste management costs that can be used in waste management. The purpose of this research is to know whether GMIM Manado Pancaran Kasih Hospital has applied environmental accounting according to existing standard. The results of this study found that GMIM Pancaran Kasih Hospital has applied its environmental accounting and carried out the process of Recognition, Measurement, Recording, Presentation, and Disclosure as well as those described in Government Accounting Standards of 2010.Keywords: Environmental accounting, Costs

scholarly journals Evaluation of Rules and regulation of Construction and Demolition Waste Management (CDWM) in India

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2642-2644
Keyword(s):  
Environmental Impact ◽  
Waste Management ◽  
Construction Industry ◽  
Construction And Demolition Waste ◽  
Construction Sites ◽  
Demolition Waste ◽  
Construction Waste

The rules and regulations on waste management in the construction and demolition sector are analyzed corresponding to the present scenario of C&DW in India. C&D waste from construction sites has emerged as a significant threat to India because of its severe footprint on the environment. Vast quantities of construction waste will have unfavorable consequences on the surroundings if they are not properly managed. Therefore it is necessary to manage the development of C&DW by the experts within the construction industry. The approach represented is specialized in rules and regulations on waste management so that the environmental impact of construction activities can be minimized.

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