Methods for Reducing Energy Consumption and Carbon Emission in Asphalt Pavement Construction

2013 ◽  
Vol 361-363 ◽  
pp. 1825-1828
Author(s):  
Zhi Yong Ding ◽  
Yi Xiao Yang
Keyword(s):  
Energy Conservation ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Construction Process ◽  
Consumption Reduction ◽  
Structure Improvement ◽  
Excellent Control ◽  
Pavement Construction

In the construction process of asphalt pavement, mixing is the process which brings most of carbon emission. There is huge potential advancement of energy conservation, emission reduction and consumption reduction in the construction of asphalt pavement. Research on the structure improvement of construction equipment, the optimizing of the construction technological process and the influence of mixture performance and parameters is necessary. It is feasible to conduct interdisciplinary research in the condition that construction quality is ensured. There needs excellent control technology on efficient paving, efficient compaction and appropriate equipment match and temperature segregation of mixture. By doing this, the purpose of energy conservation and emission reduction in the construction process of hot-mix asphalt mixture can be achieved.

Analyse the Influence Factors of Energy-Saving and Emission-Reduction in Asphalt Pavement Construction

2013 ◽  
Vol 774-776 ◽  
pp. 913-918
Author(s):  
Li Du ◽  
Yu Mei Li ◽  
Cong Hao Li
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Emission Reduction ◽  
Heating Temperature ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Influence Factors ◽  
Construction Process ◽  
Construction Machinery ◽  
Pavement Construction

Base on the process of asphalt pavement construction, analyse the influence factors of energy-saving and emission-reduction in asphalt pavement construction. Research shows thatduring the asphalt pavement construction process, all kinds of construction machinery are the main source of energy consumption and emissions; Asphalt mixture also emission part of gases itself, which closely related with the heating temperature of the mixture.

scholarly journals Carbon Emission Estimation of Assembled Composite Concrete Beams during Construction

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1810
Author(s):  
Kaitong Xu ◽  
Haibo Kang ◽  
Wei Wang ◽  
Ping Jiang ◽  
Na Li
Keyword(s):  
Life Cycle ◽  
Carbon Emissions ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Composite Beams ◽  
Total Carbon ◽  
Construction Process ◽  
Low Carbon ◽  
Carbon Emission Reduction ◽  
The Government

At present, the issue of carbon emissions from buildings has become a hot topic, and carbon emission reduction is also becoming a political and economic contest for countries. As a result, the government and researchers have gradually begun to attach great importance to the industrialization of low-carbon and energy-saving buildings. The rise of prefabricated buildings has promoted a major transformation of the construction methods in the construction industry, which is conducive to reducing the consumption of resources and energy, and of great significance in promoting the low-carbon emission reduction of industrial buildings. This article mainly studies the calculation model for carbon emissions of the three-stage life cycle of component production, logistics transportation, and on-site installation in the whole construction process of composite beams for prefabricated buildings. The construction of CG-2 composite beams in Fujian province, China, was taken as the example. Based on the life cycle assessment method, carbon emissions from the actual construction process of composite beams were evaluated, and that generated by the composite beam components during the transportation stage by using diesel, gasoline, and electric energy consumption methods were compared in detail. The results show that (1) the carbon emissions generated by composite beams during the production stage were relatively high, accounting for 80.8% of the total carbon emissions, while during the transport stage and installation stage, they only accounted for 7.6% and 11.6%, respectively; and (2) during the transportation stage with three different energy-consuming trucks, the carbon emissions from diesel fuel trucks were higher, reaching 186.05 kg, followed by gasoline trucks, which generated about 115.68 kg; electric trucks produced the lowest, only 12.24 kg.

Determining Optimum Carbon Nanotubes Content for Asphalt Mixture in Road Pavements

2021 ◽  
Vol 1023 ◽  
pp. 121-126
Author(s):  
Van Bach Le ◽  
Van Phuc Le
Keyword(s):  
Carbon Nanotubes ◽  
Asphalt Pavement ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Construction Cost ◽  
Asphalt Mixtures ◽  
Static Modulus ◽  
Pavement Construction ◽  
Modified Binder ◽  
Marshall Stability

Although small amount of binder in asphalt concrete mixture may commonly range from 3.5 to 5.5% of total mixture as per many international specifications, it has a significant impact on the total cost of pavement construction. Therefore, this paper investigated the effects of five carbon nanotubes contents of 0.05%, 0.1%, 0.15%, 0.2%, 0.25% by asphalt weight as an additive material for binder on performance characteristics of asphalt mixtures. Performance properties of CNTs modified asphalt mixtures were investigated through the Marshall stability (MS) test, indirect tensile (IDT) test, static modulus (SM) test, wheel tracking (WT) test. The results indicated that asphalt mixtures with CNT modified binder can improve both the rutting performance, IDT strength and marshall stability of tested asphalt mixtures significantly at higher percentages of carbon nanotubes. However, the issue that should be considered is the construction cost of asphalt pavement. Based on the asphalt pavement structural analysis and construction cost, it can be concluded that an optimum CNT content of 0.1% by asphalt weight may be used as additive for asphalt binder in asphalt mixtures.

scholarly journals Agglomeration Production, Industry Association and Carbon Emission Performance: Based on Spatial Analysis

2020 ◽  
Vol 12 (18) ◽  
pp. 7234 ◽  
Author(s):  
Hui Peng ◽  
Yifan Wang ◽  
Yisha Hu ◽  
Hong Shen
Keyword(s):  
Energy Conservation ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Large Scale ◽  
Trade Association ◽  
Emission Performance ◽  
Performance Factors ◽  
Agglomeration Externalities ◽  
Economic Agglomeration ◽  
Merchandise Trade

Current emission reduction policies have struggled to adapt to the reality of industrial spatial agglomeration and increasing industrial linkages. In response, this paper incorporates new economic geography factors such as agglomeration production and industrial (trade) association into the analysis framework of carbon emission performance factors through China’s provincial panel data and conducts empirical research. It has been found that large-scale industrial production under economic agglomeration is conducive to improving carbon emission performance and that different forms of agglomeration at different degrees of agglomeration correspond to different carbon emission performances. As the degree of agglomeration increases, the effect of reducing emissions by specialized agglomeration decreases while the effect of reducing emissions by diversified agglomeration increases. Specialized agglomeration externalities and diversified agglomeration externalities can coexist at the same time, depending on the appropriate degree of agglomeration. There is a strong negative environmental efficiency effect in the provinces with close commodity trade links, which has triggered environmental dumping and pollution transfer between provinces. In the work of energy conservation and emission reduction, we must attach great importance to the hidden carbon in domestic merchandise trade and the resulting intergovernmental environmental game, and furthermore, give full play to the “self-purification” effect of aggregate production on energy conservation and emission reduction.

scholarly journals Study on carbon emission accounting of warm mix asphalt mixture

2021 ◽  
Vol 329 ◽  
pp. 01044
Author(s):  
Chengqun Wu ◽  
Wenyu Shi ◽  
Haoming Shao
Keyword(s):  
Emission Reduction ◽  
Carbon Emission ◽  
Development Process ◽  
National Level ◽  
Asphalt Mixture ◽  
Warm Mix Asphalt ◽  
Concept Development ◽  
Present Stage ◽  
Road Engineering ◽  
Development Goals

At present, the international community emphasizes reducing carbon emissions, and the national level includes carbon peaking and carbon neutralization as development goals. As a landmark material for energy conservation and emission reduction in road engineering, the research on carbon emission accounting needs to be further refined. Based on the introduction of the basic concept, development process and current situation of carbon emission accounting of warm mix asphalt mixture, this paper focuses on the most novel and recognized energy consumption accounting method and carbon emission calculation method at home and abroad. The research results of carbon emission accounting in the production, transportation and construction of warm mix asphalt mixture are introduced in detail. Finally, the research on carbon emission accounting of this material is evaluated at the present stage and prospected in the future.

scholarly journals Porous asphalt pavement for traffic noise reduction and pavement dewatering – the pollution problem

2018 ◽  
Vol 45 ◽  
pp. 00114
Author(s):  
Lesław Bichajło ◽  
Krzysztof Kołodziej
Keyword(s):  
Asphalt Pavement ◽  
Traffic Noise ◽  
Asphalt Mixture ◽  
Porous Asphalt ◽  
The Road ◽  
Road Pavement ◽  
Pollution Problem ◽  
Pavement Construction ◽  
Air Void ◽  
The City

The paper characterizes the porous asphalt mixture used in pavement construction. This kind of pavement can reduce traffic noise and reduce the slipperiness of the road pavement. The effectiveness of the porous asphalt depends on many design and technological aspects, but especially on the air-void clearance in the pavement layer. The paper includes the results of water permeability research based on laboratory tests of specimens from actual road pavement. The research shows the differences between the contamination of the road pavement sections located inside and outside the city. The paper includes recommendations for using porous asphalt based on experiences under Polish conditions.

Energy Saving Sports and Fitness

2012 ◽  
Vol 524-527 ◽  
pp. 2549-2552
Author(s):  
Xiao Jing Li
Keyword(s):  
Climate Change ◽  
Energy Conservation ◽  
Energy Saving ◽  
Environmental Protection ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Environment Protection ◽  
Low Carbon ◽  
Way Of Life ◽  
Low Carbon Energy

The United Nations Climate Change Conference in Copenhagen brought us the attention to "low-carbon, energy saving". For economic sustainable economic development, energy conservation and environmental protection must be an important strategic move. Sports as a healthy way of life should respond positively to low-carbon energy fitness concept, promote energy-saving environmental protection under the fitness movement, advocate scientific fitness, and create a rich atmosphere in the sports and fitness aspects of environmental protection. Sports should make a meaningful contribution to energy conservation, carbon emission reduction and environment protection.

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