Sustainable Development Of Construction Industry Research Articles

Steps of Creation of Seismic Isolation Strategies for Sustainable Development of Construction Industry in Armenia

Earthquake engineering is one of the rather complicated fields of human activities. There is too much uncertainty in this discipline, from the earthquake phenomenon to the properties of building structures that have to withstand it. Despite notable achievements in this field, we have to admit that the humankind is still far from solving the puzzles of the Nature that it opens to us little by little with each new earthquake.

Rheological evaluation of paving asphalt binder containing bio-oil from rice straw pyrolysis

The conversion of rice straw to bio-oil for substituting asphalt paving materials not only contributes to sustainable development in construction industry, but is also beneficial for resource recovery in agriculture. In this study, rice straw was pyrolyzed to produce bio-oil by using fluidized bed, and the influences of key pyrolysis conditions on product distribution were investigated. Bio-asphalt was prepared by high-speed mixing of pyrolysis bio-oil and petroleum asphalt, and comprehensively evaluated through rheological tests and continuous grading of performance grade (PG). Moreover, microscopic characterization was conducted to further explore the mechanism of bio-oil modification of asphalt. The test results indicate that the yield of bio-oil first rises and then drops with the increase of pyrolysis temperature. As the gas flow rate increases and the biomass particle size decreases, the bio-oil yield shows an increasing trend. The bio-asphalt containing bio-oil from lower pyrolysis temperatures has stronger rutting resistance and lower temperature susceptibility. As the pyrolysis temperature rises, the resistances of bio-asphalt to fatigue and thermal cracking are enhanced. According to continuous PG grading, the widest safe working temperature range is obtained at 450 ℃. Compared to base asphalt, bio-asphalt has superior fatigue and low-temperature performances at high pyrolysis temperatures. Additionally, it can be known from Fourier transform infrared spectroscopy that the modification of petroleum asphalt by bio-oil is a physical fusion process.

Stackelberg game-based method towards carbon-economy equilibrium for the prefabricated construction supply planning: A case study from China

Prefabricated building systems that take advantage of modern manufacturing, transportation, and assembly approach have attracted great attention as solutions for sustainable cities and urban construction carbon emissions mitigation, especially under the 30% prefabrication of new buildings target in China’s development plan of the construction industry. Nevertheless, few research has focused on the carbon reduction/economic costs equilibrium for the integrated traditional and prefabricated construction supply planning (PCSP). Aiming at the sustainable construction for urbanization, this study develops a Stackelberg game-based method for economic and environmental equilibrium under the carbon allocation scheme in an integrated prefabricated construction supply planning. In the bi-level model, the regional authority on the upper level determines the carbon allocations and the enterprises on the lower level develop plans to maximize revenue under the prefabricated rate targets and construction supply logistics limitations. The superiority and practicality of the proposed methodology are then validated through a case study from China. The scenario analyses under different policy control levels indicate that the proposed methodology is capable of systematically controlling the integrated PCSP carbon emissions and promoting the low-carbon transformation and sustainable development of construction industry. Valuable managerial implications are also provided for the policymakers and relevant practitioners.

Carbon emission prediction of construction industry in Sichuan Province based on the GA-BP model.

The reduction of the carbon emissions of construction industry is urgent. Therefore, it is essential to accurately predict the carbon emissions of the provincial construction industry, which can support differentiation emission reduction policies in China. This paper proposes a carbon emission prediction model that optimizes the backpropagation (BP) neural network by genetic algorithm (GA) to predict carbon emission of construction industry, or "GA-BP". To begin with, the carbon emissions of construction industry in Sichuan Province from 2000 to 2020 are calculated by the emission factor method. Further, the electricity correction factor is introduced to eliminate the regional difference in electricity carbon emission coefficient. Finally, four factors are selected by the grey correlation analysis method to predict the carbon emission of construction industry in Sichuan Province from 2021 to 2025. The results show that the carbon emissions of construction industry in Sichuan Province have been trending up in the past two decades, with an average increase rate of 10.51%. The GA-BP model is a high-precision prediction model to predict carbon emissions of construction industry. The mean absolute percentage error (MAPE) of the model is only 6.303%, and its coefficient of determination is 0.853. Moreover, the carbon emissions of construction industry in Sichuan Province will reach 8891.97 million tons of CO2 in 2025. The GA-BP model can effectively predict the future carbon emissions of construction industry in Sichuan Province, which provides a new idea for the green and sustainable development of construction industry in Sichuan Province.

Sustainable Development of Construction Industry in China

The research aims to determine the direction of sustainable development of the construction industry in China and ensure its regular and stable development. A series of data comparisons and methods of the comprehensive analysis showed that the construction industry in China, on the one hand, is a major industry with a huge scale and a significant position on the international market. On the other hand, it is also an industry with low investment in technology, high energy consumption, relatively backward engineering technology, and management. Besides, management and operation methods are relatively traditional and associated with challenges of industry development. The comparison with advanced manufacturing industries and foreign developed countries clarified the shortcomings of China’s construction industry and set the directions for future development. These include (1) active development of green building, (2) promotion of the industrialization process, (3) improvement of the technology application level, and (4) timely improvements of the relevant regulations. China also needs to adjust the industrial form of the construction industry and increase the internationalization level. Based on the methods of data description research and literature review, we identified the conditions for sustainable development of the construction industry and proved the importance of using Integrated Project Delivery [IPD] and BIM (Building Information Modeling) technology in the development of the Chinese construction industry. The research allowed us to understand the important role of technology and organization management in developing the construction industry. When we continue to learn lessons from advanced science and technology, smart organization, and management and implement them in the construction industry, only then it will develop sustainably.

A Comparative Study on the use of Waste Brick and Glass in Cement Mortars and their Effects on Strength Properties

Sustainable development of the construction industry should use recycled materials to the great- est extent to reduce natural hazards due to the increased accumulation of waste and the deple- tion of natural resources. However, engineering applications using waste materials are always expected to perform satisfactorily. In this aspect, detailed and systematically carried out experi- mental studies are critical in selecting the type and the quantities of waste materials that will be recycled through their use within engineering applications. This study provides systematically produced experimental data on compressive and flexural strength performance to quantitatively compare the effects of using different percentages of waste glass and brick aggregates in cement mortars with a specified workability characteristic. Results show that mortar samples with waste glass aggregates perform better under compressive loading since only around 14% strength de- crease compared to the control mix was yielded with the inclusion of waste glass. In contrast, in both cases, a 30% strength decrease was recorded with the inclusion of waste bricks for 100% replacement of natural sand in the mortars. In the case of flexural strength performance, 50% replacements of natural aggregates with waste bricks and glass yielded around 27% and 38% strength decrease, indicating that using waste brick in cement mortars could result in a better flexural strength performance in comparison, provided that its content is controlled. Replace- ment of natural sand in cement mortars with waste brick and glass yielded less significant flex- ural strength, decreasing the difference between the two types of wastes when the replacement ratio was as high as 100%. Hence, based on the presented experimental evidence, it is concluded that the decision on the type and the quantity of the waste materials to be used should be made considering the area of the use of the mortar and its expected service type.

Performance evaluation of loadbearing compressed fully recycled aggregate concrete bricks

Due to rapid expansion of infrastructure around the world, many countries are facing severe shortage of natural resources. Further, environmental issues originating from Construction and Demolition (C&D) waste are becoming a concern for society. Recycling of C&D waste is one of the most viable options that can help to reduce the burden on natural resources as well as provide an eco-friendly and sustainable solution. Recycled Concrete Aggregates (RCAs) obtained by recycling of C&D waste have been used in the production of Recycled Aggregate Concrete (RAC). In this study, the effect of RCAs on compressive strength and durability performance of loadbearing concrete bricks manufactured by Compression Casting Technique (CCT) is investigated. The concrete bricks were prepared using different mixes containing 100% RCAs using ratios of coarse-to-fine aggregates i.e., 60:40 and 70:30. For comparison, Natural Aggregates Concrete (NAC) and burnt-clay bricks were also tested. They were tested in compression and durability tests such as water absorption (WA), cycling ponding test in acidic and brine solution, efflorescence and drying shrinkage were conducted. The results showed that RAC bricks satisfied the density, WA and compressive strength requirements specified in ASTM standards. Compared to burnt-clay bricks, density and compressive strength of RAC bricks were higher (20.7–30.5% & 11.2–25.2%, respectively) while WA was less (34.4–68.5%). The RAC bricks performed better than NAC under 5% sulfuric acid and supersaturated brine solutions. The drop in compressive strength for RAC bricks after 4 cycles of immersion in acidic solution for 28 days was negligible. An increase of 21% in compressive strength of RAC bricks with 60:40 ratio of RCAs, and 10% cement was achieved after 4 cycles of immersion in the supersaturated brine solution for 56 days. The RAC bricks were more susceptible to drying shrinkage due to their porous nature. No efflorescence problem was observed in both RAC and NAC bricks. This study concluded that masonry units made using 100% RCAs fulfill performance criteria specified in international standards are structurally viable and are an eco-friendly solution. The commercial use of RAC bricks will have a significant positive impact on the environment and ensure sustainable development in construction industry.

Assessing the Application of Lime and Foundry Sand in Soil Stabilization- A Lab Scale Approach

Strictly speaking, we are in the need of discerning best soil stabilizers to counteract the problems in soft soils. Stabilizers can improve the engineering properties of soil by making it to become more stable. This analysis aims to estimate the effect of foundry sand and lime in sundry proportions based on experimental work. This can be utilized as a modifier or stabilizer in the treatment of clay soil for road work and construction. Lime is obtained by heating limestone at proper temperature. Lime stabilization can be prosperously utilized for projects to improve poor sub grade and soils. Investigations are also done by adding foundry sand which is obtained from metal foundries. It can be used for soil stabilization which can also be an effective option in waste management and sustainable development in construction industry. The effectiveness in stabilizing soils is obtained from the results of standard proctor compaction test, unconfined compressive strength test, California bearing ratio test. As a result of comparison between the three proportions conducted at three days (0, 7, 14) the property of clay increases at the day of 14 and 10% Foundry Sand and 5% lime being one of the most effective proportions. This method includes the compaction of clay soil tested at appropriate quantities of the mix prepared with alternative days. This study proves to be an effective methodology to improve the soil stabilization. Lime and foundry sand has the higher potential to act as soil stabilizers.

A Study on the Use of Foundry Sand as a Sustainable Construction Material: A Review

Abstract: Foundry sand is used as a substitute of a fine aggregate for green concrete for the sustainable development of construction industry. Foundry sand may also used to develop a design mix for the concrete, and to check the properties of green cement used in concrete, the following properties of concrete were determine, Compressive strength of the concrete, Split tensile strength of the concrete and Flexural Strength of the concrete

Artificial Neural Networks for Sustainable Development of the Construction Industry

Artificial Neural Networks (ANNs), the most popular and widely used Artificial Intelligence (AI) technology due to their proven accuracy and efficiency in control, estimation, optimization, decision making, forecasting, and many other applications, can be employed to achieve faster sustainable development of construction industry. The study presents state-of-the-art applications of ANNs to promote sustainability in the construction industry under three aspects of sustainable development, namely, environmental, economic, and social. The environmental aspect surveys ANNs’ applications in sustainable construction materials, energy management, material testing and control, infrastructure analysis and design, sustainable construction management, infrastructure functional performance, and sustainable maintenance management. The economic aspect covers financial management and construction productivity through ANN applications. The social aspect reviews society and human values and health and safety issues in the construction industry. The study demonstrates the wide range of interdisciplinary applications of ANN methods to support the sustainable development of the construction industry. It can be concluded that a holistic research approach with comprehensive input data from various phases of construction and segments of the construction industry is needed for the sustainable development of the construction industry. Further research is certainly needed to reduce the dependency of ANN applications on the input dataset. Research is also needed to apply ANNs in construction management, life cycle assessment of construction projects, and social aspects in relation to sustainability concerns of the construction industry.

Quantitative study on external benefits of prefabricated buildings: From perspectives of economy, environment, and society

• A three-dimensional evaluation indicator system from environment, economy, and society. • A quantitative model for quantifying the external benefits of prefabricated construction buildings. • A case study for verifying the feasibility and effectiveness of this quantitative model. The traditional construction industry has been considered as an industry in need of urgent improvement for its high natural resources consumption and serious green-house gas emissions. It has been confirmed that prefabricated buildings have significant advantages in energy saving, emission reduction, and other environmental aspects. This kind of lean construction mode will lead the future development trend of the construction industry. More and more external benefits are created for the implementation of prefabricated buildings. However, there is still a lack of quantitative analysis of the external benefits of prefabricated buildings. Therefore, an external benefit evaluation index system was established from the dimensions of economic, environmental, and social. Moreover, a quantitative evaluation model of prefabricated buildings was designed. Finally, the feasibility of the model was verified by an empirical study. Based on the external theory, the external benefits should be shared through the participants of prefabricated buildings such as real estate developers, consumers, and governments. The quantitative results based on the research can provide the foundational data for the proper distribution and allocation of the external benefits for implementing prefabricated buildings, which can contribute to the sustainable development of construction industry and society.

Circular Economy in the Construction Industry: A Step towards Sustainable Development

Construction is a resource-intensive industry where a circular economy (CE) is essential to minimize global impacts and conserve natural resources. A CE achieves long-term sustainability by enabling materials to circulate along the critical supply chains. Accordingly, recent research has proposed a paradigm shift towards CE-based sustainability. However, uncertainties caused by fluctuating raw material prices, scarce materials, increasing demand, consumers’ expectations, lack of proper waste infrastructure, and the use of wrong recycling technologies all lead to complexities in the construction industry (CI). This research paper aims to determine the enablers of a CE for sustainable development in the CI. The system dynamics (SD) approach is utilized for modeling and simulation purposes to address the associated process complexity. First, using content analysis of pertinent literature, ten enablers of a CE for sustainable development in CI were identified. Then, causality among these enablers was identified via interviews and questionnaire surveys, leading to the development of the causal loop diagram (CLD) using systems thinking. The CLD for the 10 shortlisted enablers shows five reinforcing loops and one balancing loop. Furthermore, the CLD was used to develop an SD model with two stocks: “Organizational Incentive Schemes” and “Policy Support.” An additional stock (“Sustainable Development”) was created to determine the combined effect of all stocks. The model was simulated for five years. The findings show that policy support and organizational incentive schemes, among other enablers, are critical in implementing a CE for sustainable development in CI. The outcomes of this study can help CI practitioners to implement a CE in a way that drives innovation, boosts economic growth, and improves competitiveness.

Comparative Study of Green Rating Systems in India

Indian construction industry is highest growth rate from last years, which is having a negative impact on the environment and natural resources available for construction. Following this problem of carbon imprint, concept of sustainable development in construction industry is the need of an hour. With increase in demand of sustainable buildings or green buildings demand of green rating and assessment tools is also increasing. Rating tools set benchmark for green building measurement, which are helpful in reducing negative impact on environment by promoting quality green building. India has two main building environment assessment tools i.e., Indian Green Building Council (IGBC) and Green Rating for Integrated Habitat Assessment (GRIHA). The former is benchmarked with global standards while later is indigenously developed. This paper aims to focus on comparative study of IGBC (LEED India) and GRIHA rating system and compare both with regards to their certification-cost, influence and popularity, performance criteria and benchmarks 9rating score). Through this study, an attempt is made to make clear understanding of IGBC and GRIHA rating system assessment criteria that need to be considered before certification.

Development of green concrete using effective utilization of autoclaved aerated concrete brick trash as lightweight aggregate

Green concrete is a concrete which can be produced from waste material as at least one of its components and ensures life-cycle sustainability.In order to preserve natural resources by dropping excessive exploitation of rocks for aggregate production, researchers are intended to predict alternate aggregates towards developing green concrete for sustainable development of construction industry. This paper provides the results obtained from an investigation which was carried out using waste building block, namely Autoclaved Aerated Concrete (AAC) brick as aggregate for developing lightweight concrete (LWC). The property variations both in fresh and hardened states were studied using M20 and M30 grade normal strength concrete. The effect of AAC brick trash on concrete properties such as slump, density and variations in mechanical properties were determined and presented. The AAC brick trash was used under saturated condition and it was replaced the granite aggregate by 10 %, 20 %, 30 %, 40 %, 50 % and 60 %. The mechanical properties were conducted after the curing period of 7, 28 and 90 days. Ordinary Portland cement (OPC), Portland pozzolana cement (PPC-fly ash based) and Portland slag cement (PSC) were used in this investigation to evaluate the compatibility of AAC brick trash with cement paste. From the investigation, it was found that the ideal replacement of AAC brick trash was obtained to develop the green LWC by replacing the granite aggregate by 30 %, 31 % and 29.5 % while using OPC, PSC and PPC respectively, with reference to the density and mechanical properties of LWC.

Effect of Waste Marble Powder on Physical and Mechanical Properties of Concrete

The emission of greenhouse gases from cement production is an obstacle for sustainable development of construction industry. The use of waste materials in constructions instead of cement could be a feasible solution to green construction. Waste marble powder with good cementing property can be used in concrete partially replace cement. In this research, the effects of using waste marble powder on the physical and mechanical properties of concrete have been studied. Three groups of particle size and five levels of replacement ratio (5%, 10%, 15%, 20%, 25%) for each group have been designed. During the different stage of hydration process, the microstructure, phase composition and thermal properties of marble-cement paste have been investigated, the influence of particle size of marble powder on these properties has been discussed. The compressive strength and stressstrain relation were tested for different series prepared by partially replacing cement at proportions of 5%– 25% separately. From the data analysis, it was observed that the using of waste marble powder would affect the hydration products and further affect the mechanical properties of concrete, the addition of marble powder that partially replace the cement at particular proportions in concrete is feasible.

BIM Technology Application Strategy in the Whole Life Cycle of Green Building

This paper summarizes the concept, influencing factors, principles and design methods of green building by combing the relevant research of green building at home and abroad. On this basis, this paper takes the whole life cycle practice process as the main line, and puts forward the specific application strategy of corresponding BIM Technology for the bottleneck problem of traditional technology in each stage. Then this paper demonstrates the unique advantages and feasibility of BIM Technology through practical cases. Among them, BIM Technology integrates geometric model and attribute database, and realizes the organic combination of spatial data and attribute data. The test results show that the BIM calculation and analysis function and ecological condition simulation function provide a very effective performance analysis tool and auxiliary decision-making tool for green building project participants. This paper studies the relationship between green building, life cycle and BIM, and puts forward constructive BIM application strategies, hoping to provide scientific reference for green building practice and related research, so as to achieve the goal of healthy and sustainable development of construction industry.

Performance Assessment of Concrete Incorporating Recycled Coarse Aggregates and Graphene Oxide

The recycled coarse aggregate (RCA) can be utilized in concrete, which leads to produce a sustainable development in construction industry. On the utilization of recycled coarse aggregate minimize the amount of construction waste deposition towards environment. Also contemporary knowledge is agreed chance to progress the recycling material usage. The current research work has to access the effect of recycled aggregate concrete (RAC) containing 30% quantities of RCA with different quantities of reduced graphene oxide and to find the optimal percentage of reduced graphene oxide for RAC. The concrete mixtures formed by replacing the natural coarse aggregates(NCA) with 30% RCA and cement having 0%, 0.3%, 0.6% and 0.9% of reduced graphene oxide. The mechanical properties present in the study include compressive strength and split tensile strength each evaluate after 28 days of curing all concrete mixes will be investigated. It provides a vibrant understanding on in what way it can be applied to progress the usage of 30% RCA with reduced graphene oxide content in concrete.

Modelling and design analysis of light gauge steel systems against conventional structural systems

The paper tries to focus on the importance and necessity to adopt new advanced construction techniques to attain fast and sustainable development in construction industry. Concrete frame construction and hot rolled steel erection are regular conventional methods which are time consuming, requires heavy manpower, machinery, and high fabrication cost. Recent developments in the field are focused to attain ecofriendly sustainable and economical construction. LGS (Light gauge steel) system is one of those which is a dry construction and can be carried out in remote locations with greater feasibilities. LGS system is a construction technology which uses cold formed steel as the construction material, is formed by compressing the steel at very cold temperatures and are made to thickness varying from 0.5 − 3 mm. The paper tries to analyze, design for the structural stability, compares the time and cost effectiveness of LGS system to conventional systems. Vertex Bd is used for modelling, STRAP 2018 for analysis of Light gauge steel sections, Staad pro is used for modeling, analysis, and design of conventional Structures. The studies signify that LGS system proves to be a better solution for mid-rise structures and best suitable option for construction at remote locations.

Case analysis on indirect economic benefits of industrial building construction

In this paper, the economic benefits of prefabricated buildings which are not directly reflected in the economic returns of investors are called indirect economic benefits. Based on the literature mining of the indirect economic relationship of a large number of prefabricated buildings, this paper constructs an analysis framework of indirect environment and social and economic benefits. Through BIM modeling software, the three prefabricated building models are modified into traditional building models. The indirect economic benefits of the project are calculated by using the index system. The functional relationship between the indirect economic benefits of prefabricated buildings and the assembly rate is established by using the SSPS statistical data processing software, which more intuitively shows the law of the indirect economic benefits of prefabricated buildings with the assembly rate It shows the impact of prefabricated building on environment and society, which is of great significance for the harmony between prefabricated building and society and environment, and the healthy and sustainable development of construction industry.

Study of sustainable concrete property containing waste foundry sand

Environmental issues were ascended in construction field owing to the rapid growth in population, over utilization and utilization of non-renewable resources. It is necessary to look for alternatives of waste disposal and relevant constituent materials for concrete to impart sustainable development in construction industry. To effectively reduce the utilization of natural occurring fine aggregate in concrete, the biologically treated discarded foundry sand (WFS) was used as a replacement material in this investigation. Initially control concrete mix prepared with M-sand then it is replaced with untreated waste foundry sand (10%, 20%, 30%, 40% and 50%) and biologically treated used foundry sand (10%, 20%, 30%, 40% and 50%). Fresh and hardened properties were studied on all concrete mixes results were compared with conventional concrete. Test result shows that increase in strength of concrete by inclusion of Waste foundry sand (WFS) as a fractional replacement of fine aggregate.