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Qian Chen
School of Highway, Chang’an University, Xi’an 710064, China

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Journal article
Published: 10 August 2021 in Sustainability
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The purpose of this study is to further improve the road performance and emission reduction effect of tourmaline-modified asphalt. Graphene was used to enhance the performance of tourmaline-modified asphalt, and graphene/tourmaline-composite-modified asphalt was prepared. The temperature susceptibility, high temperature, anti-aging properties and rheological performance of the modified asphalt were studied. The test method of emission reduction efficiency of the modified asphalt and its mixture was proposed. The emission reduction effect of different modified asphalts and its mixture was evaluated. The enhancement effect of graphene on the properties of tourmaline-modified asphalt was confirmed. It provides a reference for the performance enhancement of inorganic material modified asphalt. The results show that the temperature susceptibility, high temperature, anti-aging properties and rheological performance of the graphene/tourmaline-composite-modified asphalt are better than those of the tourmaline-modified asphalt and base asphalt. The asphalt fume reduction rate of graphene/tourmaline-composite-modified asphalt is higher than that of tourmaline-modified asphalt. With the increase of graphene content, the emission reduction performance increases gradually, and the enhancement effect of graphene on tourmaline performance is more obvious.

ACS Style

Tengteng Guo; Hao Fu; Chaohui Wang; Haijun Chen; Qian Chen; Qing Wang; Yuanzhao Chen; Zhenxia Li; Aijiu Chen. Road Performance and Emission Reduction Effect of Graphene/Tourmaline-Composite-Modified Asphalt. Sustainability 2021, 13, 8932 .

AMA Style

Tengteng Guo, Hao Fu, Chaohui Wang, Haijun Chen, Qian Chen, Qing Wang, Yuanzhao Chen, Zhenxia Li, Aijiu Chen. Road Performance and Emission Reduction Effect of Graphene/Tourmaline-Composite-Modified Asphalt. Sustainability. 2021; 13 (16):8932.

Chicago/Turabian Style

Tengteng Guo; Hao Fu; Chaohui Wang; Haijun Chen; Qian Chen; Qing Wang; Yuanzhao Chen; Zhenxia Li; Aijiu Chen. 2021. "Road Performance and Emission Reduction Effect of Graphene/Tourmaline-Composite-Modified Asphalt." Sustainability 13, no. 16: 8932.

Research article
Published: 08 June 2021 in Advances in Civil Engineering
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Dynamic modulus is a key evaluation index of the high-modulus asphalt mixture, but it is relatively difficult to test and collect its data. The purpose is to achieve the accurate prediction of the dynamic modulus of the high-modulus asphalt mixture and further optimize the design process of the high-modulus asphalt mixture. Five high-temperature performance indexes of high-modulus asphalt and its mixture were selected. The correlation between the above five indexes and the dynamic modulus of the high-modulus asphalt mixture was analyzed. On this basis, the dynamic modulus prediction models of the high-modulus asphalt mixture based on small sample data were established by multiple regression, general regression neural network (GRNN), and support vector machine (SVM) neural network. According to parameter adjustment and cross-validation, the output stability and accuracy of different prediction models were compared and evaluated. The most effective prediction model was recommended. The results show that the SVM model has more significant prediction accuracy and output stability than the multiple regression model and the GRNN model. Its prediction error was 0.98–9.71%. Compared with the other two models, the prediction error of the SVM model declined by 0.50–11.96% and 3.76–13.44%. The SVM neural network was recommended as the dynamic modulus prediction model of the high-modulus asphalt mixture.

ACS Style

Chaohui Wang; Songyuan Tan; Qian Chen; Jiguo Han; Liang Song; Yi Fu. Dynamic Modulus Prediction of a High-Modulus Asphalt Mixture. Advances in Civil Engineering 2021, 2021, 1 -10.

AMA Style

Chaohui Wang, Songyuan Tan, Qian Chen, Jiguo Han, Liang Song, Yi Fu. Dynamic Modulus Prediction of a High-Modulus Asphalt Mixture. Advances in Civil Engineering. 2021; 2021 ():1-10.

Chicago/Turabian Style

Chaohui Wang; Songyuan Tan; Qian Chen; Jiguo Han; Liang Song; Yi Fu. 2021. "Dynamic Modulus Prediction of a High-Modulus Asphalt Mixture." Advances in Civil Engineering 2021, no. : 1-10.

Research article
Published: 14 December 2020 in International Journal of Pavement Engineering
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The purpose of the study is to clarify the curing effect of raw material composition on waterborne epoxy resin, thereby further improving working performance of waterborne epoxy resin. Based on the preferred variety of epoxy resins and curing agents, different types of waterborne epoxy resins were prepared. The effects of different raw material compositions on the physical properties of waterborne epoxy resin were studied systematically. The reasonable material composition and proportion were determined. The influence of physical properties of waterborne epoxy resin on its adhesion properties was evaluated. The results show that raw material composition has a large impact on the working performance of waterborne epoxy resin. The combination of E–44 waterborne epoxy resin and alicyclic amine has the best comprehensive property. And it is 3.65–36.22% higher than other combinations. The adhesive property index of waterborne epoxy resin has a high correlation with the mechanical property index, and they are in direct proportion.

ACS Style

Qian Chen; Youfu Lu; Chaohui Wang; Bing Han; Hao Fu. Effect of raw material composition on the working performance of waterborne epoxy resin for road. International Journal of Pavement Engineering 2020, 1 -12.

AMA Style

Qian Chen, Youfu Lu, Chaohui Wang, Bing Han, Hao Fu. Effect of raw material composition on the working performance of waterborne epoxy resin for road. International Journal of Pavement Engineering. 2020; ():1-12.

Chicago/Turabian Style

Qian Chen; Youfu Lu; Chaohui Wang; Bing Han; Hao Fu. 2020. "Effect of raw material composition on the working performance of waterborne epoxy resin for road." International Journal of Pavement Engineering , no. : 1-12.

Journal article
Published: 27 March 2020 in Journal of Cleaner Production
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Through releasing negative ions and infrared radiation, tourmaline can absorb dust and hazardous substances to purify air. The purpose is to improve the air purification efficiency of tourmaline through the remarkable electrical properties of graphene. The efficient preparation method of graphene/tourmaline composite was proposed. The environmental properties of the graphene/tourmaline composites, such as infrared radiation and negative ion release, were systematically analyzed. The Hall effect was used to reveal the enhancement mechanism of graphene on tourmaline. This laid a solid foundation for the application of composites in the air purification fields. The results demonstrated that graphene could significantly enhance the environmental effect of tourmaline. The ball milling method was the optimum preparation method, and the parameters were determined as follows: ball milling speed = 200 rpm and ball milling time = 2 h. The optimum graphene content was 0.5% of the mass of tourmaline. The negative-ion release performance of graphene/tourmaline composites was higher than that of tourmaline by over 11.9%. The infrared emissivity and negative-ion release of graphene/tourmaline composites were observed to be significantly correlated with the band gap. The main reason for the enhancement in the environmental properties of tourmaline by graphene was that the band gap of tourmaline was reduced when graphene was compounded with tourmaline.

ACS Style

Chaohui Wang; Qian Chen; Tengteng Guo; Qiang Li. Environmental effects and enhancement mechanism of graphene/tourmaline composites. Journal of Cleaner Production 2020, 262, 121313 .

AMA Style

Chaohui Wang, Qian Chen, Tengteng Guo, Qiang Li. Environmental effects and enhancement mechanism of graphene/tourmaline composites. Journal of Cleaner Production. 2020; 262 ():121313.

Chicago/Turabian Style

Chaohui Wang; Qian Chen; Tengteng Guo; Qiang Li. 2020. "Environmental effects and enhancement mechanism of graphene/tourmaline composites." Journal of Cleaner Production 262, no. : 121313.

Journal article
Published: 18 March 2020 in Petroleum Science and Technology
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The purpose is to clarify the effect of warm-mix modifier on rheological properties of SBS warm-mix modified asphalt and its viscosity reduction mechanism. Different types of SBS warm-mix modified asphalt were prepared. The effects of modifier content and temperature on the rheological properties of SBS warm-mix modified asphalt were assessed. The viscosity reduction mechanism of SBS warm-mix modified asphalt was revealed. The results show that after adding warm-mix modifier, the viscosity of SBS warm-mix modified asphalt deceased and its high-temperature performance was improved. The optimum content of warm-mix modifier is 1.0%, and the viscosity of modified asphalt reduced to 80.4–81.1%.

ACS Style

Zhiwei Gao; Hao Fu; Qian Chen; Yangsen Cao. Rheological properties and viscosity reduction mechanism of SBS warm-mix modified asphalt. Petroleum Science and Technology 2020, 38, 556 -564.

AMA Style

Zhiwei Gao, Hao Fu, Qian Chen, Yangsen Cao. Rheological properties and viscosity reduction mechanism of SBS warm-mix modified asphalt. Petroleum Science and Technology. 2020; 38 (6):556-564.

Chicago/Turabian Style

Zhiwei Gao; Hao Fu; Qian Chen; Yangsen Cao. 2020. "Rheological properties and viscosity reduction mechanism of SBS warm-mix modified asphalt." Petroleum Science and Technology 38, no. 6: 556-564.

Journal article
Published: 23 December 2019 in Construction and Building Materials
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This study addresses how to reduce the emission of asphalt smoke in the construction process of traditional hot mix asphalt mixture. The graphene/tourmaline composites were prepared based on tourmaline having the effect of adsorbing pollutants. The basic properties of composites and their adsorption effect on asphalt smoke were analyzed. Then, the composite powder was added into the environment-friendly asphalt mixture as filler. And the pavement performances and emission reduction performance of asphalt mixtures were studied. The results indicated that the basic properties of composite powder meet the requirements of specifications about filler in asphalt mixtures. Composite powder could be used to replace part of mineral powder, and the optimum replacement content was 17–20 wt%. The environment-friendly asphalt mixtures can effectively reduce asphalt smoke emission. The reduction rate of emission can reach 76.9–80.5%.

ACS Style

Qian Chen; Chaohui Wang; Zhi Qiao; Tengteng Guo. Graphene/tourmaline composites as a filler of hot mix asphalt mixture: Preparation and properties. Construction and Building Materials 2019, 239, 117859 .

AMA Style

Qian Chen, Chaohui Wang, Zhi Qiao, Tengteng Guo. Graphene/tourmaline composites as a filler of hot mix asphalt mixture: Preparation and properties. Construction and Building Materials. 2019; 239 ():117859.

Chicago/Turabian Style

Qian Chen; Chaohui Wang; Zhi Qiao; Tengteng Guo. 2019. "Graphene/tourmaline composites as a filler of hot mix asphalt mixture: Preparation and properties." Construction and Building Materials 239, no. : 117859.

Conference paper
Published: 18 September 2019 in IOP Conference Series: Earth and Environmental Science
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To study the effects of tourmaline type and content on the road performance of rubber powder modified asphalt mixture, different types of tourmaline rubber powder modified asphalt mixtures were prepared by adding tourmaline powder instead of equal weight mineral filler into the mixtures. Based on indoor simulation test, the high temperature stability, low temperature crack resistance and water stability of rubber powder modified asphalt mixture under different tourmaline type and content were systematically analyzed. The results show that with the increase of tourmaline powder content, the road performance of asphalt mixtures show an overall growth trend. The 60 °C of rutting test dynamic stability, the -10 °C of bending test flexural-tensile strain, immersion residual Marshall stability and freeze-thaw splitting tensile strength ratio of rubber powder modified asphalt mixtures with tourmaline powder increase by 12.5-19.6%, 7.5-12%, 1.8-4.7% and 1.7-4.3%, respectively.

ACS Style

Hao Fu; Qian Chen; Zhi Song; Xudang Xiao; Zhentong Fan. Road performance of tourmaline/rubber powder modified asphalt mixture. IOP Conference Series: Earth and Environmental Science 2019, 304, 052129 .

AMA Style

Hao Fu, Qian Chen, Zhi Song, Xudang Xiao, Zhentong Fan. Road performance of tourmaline/rubber powder modified asphalt mixture. IOP Conference Series: Earth and Environmental Science. 2019; 304 (5):052129.

Chicago/Turabian Style

Hao Fu; Qian Chen; Zhi Song; Xudang Xiao; Zhentong Fan. 2019. "Road performance of tourmaline/rubber powder modified asphalt mixture." IOP Conference Series: Earth and Environmental Science 304, no. 5: 052129.

Journal article
Published: 05 September 2019 in Construction and Building Materials
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Conductive gussasphalt mixture can melt snow on the bridge deck, but it may corrode steel bridge deck and have an impact on traffic environment and safety when the power is on. To solve this problem, five conductive gussasphalt mixtures were prepared, and the effects of mixture type, working conditions and environmental factors of conductive gussasphalt mixture on corrosion of steel bridge deck was studied systemically. Based on the extreme learning machine optimized by genetic algorithm, the corrosion degree prediction model of steel bridge deck was established. The results indicated that number of times on power, mixture type and temperature had significant effects on the corrosion of steel deck, and their contribution rates were 58.47%, 24.62% and 15.40%, respectively. After optimization by genetic algorithm, the error of extreme learning machine model was 0.40–9.25%. Compared with the traditional extreme learning machine model, they decreased by 5.31–10.63%.

ACS Style

Qian Chen; Chaohui Wang; Xiaolong Sun; Yangsen Cao; Tengteng Guo; Jiao Chen. Evaluation and prediction for effect of conductive gussasphalt mixture on corrosion of steel bridge deck. Construction and Building Materials 2019, 228, 116837 .

AMA Style

Qian Chen, Chaohui Wang, Xiaolong Sun, Yangsen Cao, Tengteng Guo, Jiao Chen. Evaluation and prediction for effect of conductive gussasphalt mixture on corrosion of steel bridge deck. Construction and Building Materials. 2019; 228 ():116837.

Chicago/Turabian Style

Qian Chen; Chaohui Wang; Xiaolong Sun; Yangsen Cao; Tengteng Guo; Jiao Chen. 2019. "Evaluation and prediction for effect of conductive gussasphalt mixture on corrosion of steel bridge deck." Construction and Building Materials 228, no. : 116837.

Articles
Published: 03 June 2019 in Petroleum Science and Technology
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The purpose is to improve performance of asphalt by synergistic enhancement of graphene and tourmaline. Graphene/tourmaline composite modified asphalt was prepared. The basic properties and rheological properties of graphene/tourmaline composite modified asphalt were analyzed systematically. The results indicate that the basic viscoelastic properties of asphalt were not destroyed after graphene/tourmaline composites added into asphalt. The rutting resistance of graphene/tourmaline composite modified asphalt was superior than tourmaline. And the larger the composite material content, the superior the rutting resistance of modified asphalt. The rutting resistance was increased by 10.12%.

ACS Style

Tengteng Guo; Chaohui Wang; Haijun Chen; Zhenxia Li; Qian Chen; Aihong Han; Dengwei Jiang; Zhiwei Wang. Rheological properties of graphene/tourmaline composite modified asphalt. Petroleum Science and Technology 2019, 37, 2190 -2198.

AMA Style

Tengteng Guo, Chaohui Wang, Haijun Chen, Zhenxia Li, Qian Chen, Aihong Han, Dengwei Jiang, Zhiwei Wang. Rheological properties of graphene/tourmaline composite modified asphalt. Petroleum Science and Technology. 2019; 37 (21):2190-2198.

Chicago/Turabian Style

Tengteng Guo; Chaohui Wang; Haijun Chen; Zhenxia Li; Qian Chen; Aihong Han; Dengwei Jiang; Zhiwei Wang. 2019. "Rheological properties of graphene/tourmaline composite modified asphalt." Petroleum Science and Technology 37, no. 21: 2190-2198.

Highway engineering
Published: 29 May 2019 in KSCE Journal of Civil Engineering
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Road micro-surfacing materials with exhaust purification function were developed to purify and alleviate serious air pollution in cities. Two types of functional materials satisfied the basic performance requirements of aggregates and fillers were selected to develop micro-surfacing materials with exhaust purification function. Test equipment for exhaust purification effect was invented, and test methods were proposed. The exhaust purification effect involved in functional micro-surfacing materials was comprehensively investigated. The road performance was also evaluated. Finally, the exhaust purification mechanism of functional micro-surfacing materials was revealed. Results showed that the purification rates of gaseous pollutants (COx, NOx, and SO2) and particulate pollutants (PM 2.5 and PM 10) were above 15% and 50%, respectively based on indoor heating and cooling intervals, and that of outdoors were 20% and 40%. The functional micro-surfacing materials exhibited satisfactory road performance. Moreover, the self-polarization effect of the functional materials contributed to the exhaust purification effect.

ACS Style

Chaohui Wang; Hao Fu; Qian Chen; Xiaolong Sun; Tengteng Guo; Jin Guo. Preparation and Performance of Road Micro-surfacing Materials with Exhaust Purification Function. KSCE Journal of Civil Engineering 2019, 23, 2877 -2888.

AMA Style

Chaohui Wang, Hao Fu, Qian Chen, Xiaolong Sun, Tengteng Guo, Jin Guo. Preparation and Performance of Road Micro-surfacing Materials with Exhaust Purification Function. KSCE Journal of Civil Engineering. 2019; 23 (7):2877-2888.

Chicago/Turabian Style

Chaohui Wang; Hao Fu; Qian Chen; Xiaolong Sun; Tengteng Guo; Jin Guo. 2019. "Preparation and Performance of Road Micro-surfacing Materials with Exhaust Purification Function." KSCE Journal of Civil Engineering 23, no. 7: 2877-2888.

Journal article
Published: 01 March 2019 in Construction and Building Materials
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The aim of this study is to improve the fundamental properties of refractory bauxite to promote its further application in the heat-resistant asphalt pavement technology. A method of coating refractory bauxite in an organosilicon solvent is proposed. The surface coating effects of different organosilicon solvents on high-alumina refractory bauxite are compared and evaluated using the macropore structure and the microsurface morphology. Based on the optimal treatment process and material proportion, the fundamental properties of different organosilicon–refractory bauxite materials are analyzed systematically. Based on the grey target decision-making method, the comprehensive performance of different organosilicon–refractory bauxite is evaluated. On this basis, the organosilicon–refractory bauxite material with better comprehensive performance was added into the asphalt mixture and its pavement performances were identified. The results show that a large number of pores of refractory bauxite are sealed by using organosilicon solvents. Moreover, the coating effect is good. In addition, the heat resistance is improved. The mechanical property and adhesion of refractory bauxite are increased by 30.66% and 66.67%, respectively.

ACS Style

Ming Ma; Qian Chen; Chaohui Wang; Hao Fu; Tianyu Li. High-performance organosilicon–refractory bauxite: Coating and fundamental properties. Construction and Building Materials 2019, 207, 563 -571.

AMA Style

Ming Ma, Qian Chen, Chaohui Wang, Hao Fu, Tianyu Li. High-performance organosilicon–refractory bauxite: Coating and fundamental properties. Construction and Building Materials. 2019; 207 ():563-571.

Chicago/Turabian Style

Ming Ma; Qian Chen; Chaohui Wang; Hao Fu; Tianyu Li. 2019. "High-performance organosilicon–refractory bauxite: Coating and fundamental properties." Construction and Building Materials 207, no. : 563-571.

Journal article
Published: 07 February 2019 in Construction and Building Materials
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Tourmaline modified asphalt mixture has the air purification effect and is an excellent low-carbon road material. However, previous studies mainly focused on the improvement of road performance for tourmaline modified asphalt mixture. There were few studies on its comprehensive performance evaluation. In order to further promote the application of tourmaline in the field of modified asphalt mixtures, tourmaline modified asphalt mixture was prepared. The comprehensive performance evaluation system for tourmaline modified asphalt mixture was established based on the grey target decision method. Based on two mixing methods, the road performance of tourmaline modified asphalt mixture were systematically analyzed, the comprehensive performance of tourmaline modified asphalt mixture was evaluated, the suitable content of tourmaline in the modified asphalt mixture was determined. The results show that the comprehensive performance evaluation system based on grey target decision method has good reliability and practicability. The comprehensive performance of tourmaline modified asphalt mixture achieves its best with 10% tourmaline.

ACS Style

Qian Chen; Chaohui Wang; Penghui Wen; Xiaolong Sun; Tengteng Guo. Performance evaluation of tourmaline modified asphalt mixture based on grey target decision method. Construction and Building Materials 2019, 205, 137 -147.

AMA Style

Qian Chen, Chaohui Wang, Penghui Wen, Xiaolong Sun, Tengteng Guo. Performance evaluation of tourmaline modified asphalt mixture based on grey target decision method. Construction and Building Materials. 2019; 205 ():137-147.

Chicago/Turabian Style

Qian Chen; Chaohui Wang; Penghui Wen; Xiaolong Sun; Tengteng Guo. 2019. "Performance evaluation of tourmaline modified asphalt mixture based on grey target decision method." Construction and Building Materials 205, no. : 137-147.

Accepted manuscript
Published: 30 January 2019 in Materials Research Express
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The purpose is to further improve the negative ion release of tourmaline and broaden the application of tourmaline in the field of environmental protection. The new method for preparing graphene/tourmaline composite by ball milling was proposed. The optimum preparation process of graphene/tourmaline composite was determined through microscopic tests. The influence of graphene content on negative ion release of composites at different conditions was studied systematically. The enhancement mechanism of graphene/tourmaline composite on negative ion release was analyzed. The results show that graphene can significantly enhance negative ion release of tourmaline. And it is more advantageous to increase negative ion release of graphene/tourmaline composite by appropriately increasing temperature while adding graphene. The optimum ball milling parameters are determined as ball milling speed of 200 rpm and time of 2 h. Compared with tourmaline, the graphene/tourmaline composite has an increase in negative ion release of 11.9 %.

ACS Style

Yaolu Luo; Qian Chen; Chaohui Wang; Tengteng Guo. Preparation and improved negative ion release of graphene/tourmaline composite. Materials Research Express 2019, 6, 055507 .

AMA Style

Yaolu Luo, Qian Chen, Chaohui Wang, Tengteng Guo. Preparation and improved negative ion release of graphene/tourmaline composite. Materials Research Express. 2019; 6 (5):055507.

Chicago/Turabian Style

Yaolu Luo; Qian Chen; Chaohui Wang; Tengteng Guo. 2019. "Preparation and improved negative ion release of graphene/tourmaline composite." Materials Research Express 6, no. 5: 055507.

Journal article
Published: 22 September 2018 in Construction and Building Materials
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A comprehensive durability evaluation system for road cooling coating had not yet been constructed. Aimed at this objective, different new road cooling coatings were prepared based on a variety of selected raw materials, and the cooling effects of different road cooling coatings were determined by means of a field test. The complex coupling environment of temperature, vehicle load, and pollution in the practical application of road cooling coating was simulated. Durability evaluation indexes of road cooling coatings under different composite operating conditions were presented, following which the comprehensive durability of different road cooling coatings was evaluated using a multi-objective grey target decision-making method. Road cooling coatings with superior comprehensive durability were selected. The results demonstrate that various road cooling coatings can reduce the asphalt pavement temperature under the impact of the outside environment. The comprehensive durability of road coatings is obviously improved with the addition of cooling function materials.

ACS Style

Qian Chen; Chaohui Wang; Hao Fu; Lian Zhang. Durability evaluation of road cooling coating. Construction and Building Materials 2018, 190, 13 -23.

AMA Style

Qian Chen, Chaohui Wang, Hao Fu, Lian Zhang. Durability evaluation of road cooling coating. Construction and Building Materials. 2018; 190 ():13-23.

Chicago/Turabian Style

Qian Chen; Chaohui Wang; Hao Fu; Lian Zhang. 2018. "Durability evaluation of road cooling coating." Construction and Building Materials 190, no. : 13-23.

Journal article
Published: 05 September 2018 in Petroleum Science and Technology
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ACS Style

Xiaolong Sun; Xiao Qin; Qian Chen; Qiang Ma. Investigation of enhancing effect and mechanism of basalt fiber on toughness of asphalt material. Petroleum Science and Technology 2018, 36, 1710 -1717.

AMA Style

Xiaolong Sun, Xiao Qin, Qian Chen, Qiang Ma. Investigation of enhancing effect and mechanism of basalt fiber on toughness of asphalt material. Petroleum Science and Technology. 2018; 36 (20):1710-1717.

Chicago/Turabian Style

Xiaolong Sun; Xiao Qin; Qian Chen; Qiang Ma. 2018. "Investigation of enhancing effect and mechanism of basalt fiber on toughness of asphalt material." Petroleum Science and Technology 36, no. 20: 1710-1717.

Journal article
Published: 29 August 2018 in Journal of Cleaner Production
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This study addresses the difficulty in systematically and scientifically evaluating the comprehensive performance of low-carbon modified asphalt. Sixteen technical indexes were selected as evaluation indicators. The corresponding weight of each evaluation index was determined by the coefficient of variation method. The fundamental performance, environmental protection effect, and economic effect of low-carbon modified asphalt were analyzed systematically. A comprehensive performance evaluation system for low-carbon modified asphalt was established based on the efficacy coefficient method. Low-carbon modified asphalt using tourmaline anion powder was selected as an example for inspection. Its comprehensive performance was evaluated, and the optimal content of tourmaline anion powder was determined. The results showed that the comprehensive performance evaluation of low-carbon modified asphalt using tourmaline anion powder reflects well the actual situation, meaning that a comprehensive performance evaluation system for low-carbon modified asphalt based on the efficacy coefficient method is relatively reliable and useful. This study lays the foundation for the comprehensive performance evaluation and further application of low-carbon modified asphalt.

ACS Style

Qian Chen; Chaohui Wang; Penghui Wen; Menghao Wang; Jianxiong Zhao. Comprehensive performance evaluation of low-carbon modified asphalt based on efficacy coefficient method. Journal of Cleaner Production 2018, 203, 633 -644.

AMA Style

Qian Chen, Chaohui Wang, Penghui Wen, Menghao Wang, Jianxiong Zhao. Comprehensive performance evaluation of low-carbon modified asphalt based on efficacy coefficient method. Journal of Cleaner Production. 2018; 203 ():633-644.

Chicago/Turabian Style

Qian Chen; Chaohui Wang; Penghui Wen; Menghao Wang; Jianxiong Zhao. 2018. "Comprehensive performance evaluation of low-carbon modified asphalt based on efficacy coefficient method." Journal of Cleaner Production 203, no. : 633-644.

Journal article
Published: 04 April 2018 in Construction and Building Materials
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The snow- and ice-melting effect and energy usage of steel bridge deck pavement are affected by the heat-transfer rate and temperature change in the middle of the combination structure when using conductive gussasphalt concrete (CGA). To determine the heat conduction effect and the snow melting time of conductive gussasphalt concrete pavement, the heat conduction estimation method and a theoretical equation of the CGA combination structure are derived. A CGA combination structure with spreading carbon fiber in the middle of the CGA layer is prepared. The accuracy of the theoretical equation is checked and verified. Then, the heat conduction effect and the time required to reach and maintain the temperature above 0 °C of different CGA combination structures are evaluated. According to the estimation results and weather conditions, the power will be turned on or shut off ahead of time to improve the deicing efficiency and save energy. The results show that the theoretically obtained estimation values are close to the test values. The theoretical equation can estimate the heat conduction effect of the CGA combination structure. With a decrease in the environmental temperature, the time required for the surface temperature of different CGA combination structures to exceed 0 °C gradually increases, and the time required for the surface temperature to remain above 0 °C decreases. The surface temperatures of the CGA combination structure based on schemes 3 and 4 can be increased to above 0 °C in a short time and remain above 0 °C for a long time.

ACS Style

Chaohui Wang; Qian Chen; Hao Fu; Jiao Chen. Heat conduction effect of steel bridge deck with conductive gussasphalt concrete pavement. Construction and Building Materials 2018, 172, 422 -432.

AMA Style

Chaohui Wang, Qian Chen, Hao Fu, Jiao Chen. Heat conduction effect of steel bridge deck with conductive gussasphalt concrete pavement. Construction and Building Materials. 2018; 172 ():422-432.

Chicago/Turabian Style

Chaohui Wang; Qian Chen; Hao Fu; Jiao Chen. 2018. "Heat conduction effect of steel bridge deck with conductive gussasphalt concrete pavement." Construction and Building Materials 172, no. : 422-432.

Research article
Published: 21 November 2017 in Mathematical Problems in Engineering
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This study presents a comprehensive pollutant reduction rating system for hot mix asphalt (HMA) with three Level I indices and ten Level II indices, covering various aspects in HMA pollutant emissions, energy consumption, and exhausts from construction equipment. The pollutant emission reduction effects are investigated not only in the laboratory for modified asphalt mixtures with various mixture gradation and binder types but also in the field for several warm mix asphalt (WMA) projects. Furthermore, energy consumption and emission data during pavement construction are obtained from 58 in situ highway projects in 10 provinces of China. Based on the hierarchical clustering method and Bayesian discriminant analysis, individual ranking systems are developed to quantify pollutant emission reduction effects and energy consumption. Subsequently, a comprehensive reduction rating system is established based on the analytic hierarchy process and approximation methods. A case study is demonstrated to implement the proposed system for the assessment of emission reduction effects.

ACS Style

Chaohui Wang; Qian Chen; Qiang Joshua Li; Xiaolong Sun; Zhenxia Li. A Quantitative Rating System for Pollutant Emission Reduction of Asphalt Mixture. Mathematical Problems in Engineering 2017, 2017, 1 -15.

AMA Style

Chaohui Wang, Qian Chen, Qiang Joshua Li, Xiaolong Sun, Zhenxia Li. A Quantitative Rating System for Pollutant Emission Reduction of Asphalt Mixture. Mathematical Problems in Engineering. 2017; 2017 ():1-15.

Chicago/Turabian Style

Chaohui Wang; Qian Chen; Qiang Joshua Li; Xiaolong Sun; Zhenxia Li. 2017. "A Quantitative Rating System for Pollutant Emission Reduction of Asphalt Mixture." Mathematical Problems in Engineering 2017, no. : 1-15.