Construction and Building Materials最新文献_第5页

Modified procedure for assessing the bending strength of composite GFRP poles 评估玻璃纤维增强塑料复合材料电杆抗弯强度的改进程序

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139182

Filip Broniewicz, Mirosław Broniewicz

{"title":"Modified procedure for assessing the bending strength of composite GFRP poles","authors":"Filip Broniewicz, Mirosław Broniewicz","doi":"10.1016/j.conbuildmat.2024.139182","DOIUrl":"10.1016/j.conbuildmat.2024.139182","url":null,"abstract":"<div><div>Fibreglass lighting poles have gained a considerable amount of popularity in the market due to their advantages, and interest in them continues to grow. Consequently, the challenge of ensuring their safe design is becoming increasingly important. However, the current standard design procedure is not sufficient, because it does not consider one of the most common failure modes of composite poles, namely local buckling in the vicinity of the inspection opening. A verification of the standard’s calculated values has been done with the use of experimental testing. The calculated design bending strength was three times higher than the actual bending strength for 3.0 m high poles and twice higher for 9.0 m high poles. This paper proposes an improved method for estimating the bending resistance of composite poles with inspection openings. The method was developed using results from tests on full-scale poles, material sample tests, and experiments in a FEM environment. The proposed method provides more accurate results than the procedure for assessing the bending strength of these poles as presented in the EN 40–3–3 standard. The bending resistance value obtained using the modified calculation method is higher than the experimental value by an average of 6.6 %.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 139182"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability performance of corroded circular steel tube under eccentric compression 偏心压缩下腐蚀圆钢管的稳定性能

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139157

Zhengyi Kong , Bo Yang , Xiaofei Wang , Cuiqiang Shi , Rui Li , Ningning Hu , Qinglin Tao , George Vasdravellis , Quang-Viet Vu

{"title":"Stability performance of corroded circular steel tube under eccentric compression","authors":"Zhengyi Kong , Bo Yang , Xiaofei Wang , Cuiqiang Shi , Rui Li , Ningning Hu , Qinglin Tao , George Vasdravellis , Quang-Viet Vu","doi":"10.1016/j.conbuildmat.2024.139157","DOIUrl":"10.1016/j.conbuildmat.2024.139157","url":null,"abstract":"<div><div>This study examines the stability behavior of corroded circular steel tubes (CST) under eccentric compression. Accelerated corrosion testing is utilized to obtain 12 CST with different corrosion degree, and 3D scanning technology is then applied to analyze the surface corrosion characteristics of the CST members. Eccentric compression tests are performed on the CST members to assess the impact of corrosion on the stability behavior. A finite element (FE) method with corrosion characteristics, based on the 3D reverse reconstructed method and surface corrosion characteristics, is developed for the prediction of buckling response of corroded CST. Corrosion weakens the mechanical properties of Q345B steel, progressively shortening or eliminating the yield plateau of stress-strain curves. When the corrosion rate reaches 21.47 %, the ultimate load and local buckling load of the CST members drop by 44.99 % and 43.44 %, respectively. Uniform corrosion primarily affects the bearing capacity (BCP) of CST members, while the failure mode of CST is significantly influenced by local corrosion. Current specifications are inaccuracy for the BCP of corroded CST under eccentric compression as they do not consider the impact of local corrosion. A new formula modified from current specification is developed to accurately predict the BCP of CST members after corrosion.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 139157"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A damage model of rock-concrete composite in coal mine underground reservoirs 煤矿地下水库岩石-混凝土复合材料的破坏模型

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139046

Tenglong Rong , Jiawei Wang , Lujun Wang , Sheng Zhang , Xiaojian Ren , Yilu Yang , Yijia Zhou

{"title":"A damage model of rock-concrete composite in coal mine underground reservoirs","authors":"Tenglong Rong , Jiawei Wang , Lujun Wang , Sheng Zhang , Xiaojian Ren , Yilu Yang , Yijia Zhou","doi":"10.1016/j.conbuildmat.2024.139046","DOIUrl":"10.1016/j.conbuildmat.2024.139046","url":null,"abstract":"<div><div>In order to ensure the stability of rock-concrete composite (RCC) in coal mine underground reservoirs (CMURs), the theoretical damage model of the RCC was constructed in the present work. Considering the deformation compatibility between two different media of RCC on loading, the damage variable of RCC is deduced based upon the relationship between the damage variables of rock and concrete following the strain equivalence principle. Adjudging the failure of rock and concrete by different strength criteria, a damage model of RCC in coal mine underground reservoir (RCCD model) was developed. The experiments on the uniaxial and triaxial compressions of rock, concrete and RCC were used to validate the proposed damage model. The RCCD model curves exhibited four different periods in triaxial compression. The correlation coefficients between the values of RCCD model and the test values were determined to be 0.959, 0.981, 0.998 and 0.996. In addition, the correlation coefficients of rock and concrete were higher than 0.959. Moreover, the correlation of the parameters in the RCCD model was analyzed. The sensitivity of Weibull distribution parameters, height ratio coefficient, elastic modulus ratio and tension compression ratio of RCC were discussed. The study illustrates that the proposed RCCD model can satisfactorily characterize the mechanical characteristics of RCC under various loadings.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 139046"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quasi-static and dynamic compressive behaviours of wet-sieved mortar at low temperatures 湿喷砂浆在低温下的准静态和动态抗压行为

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.138940

Rong Xi , Jian Xie , Tao Wang , Jia-Bao Yan

{"title":"Quasi-static and dynamic compressive behaviours of wet-sieved mortar at low temperatures","authors":"Rong Xi , Jian Xie , Tao Wang , Jia-Bao Yan","doi":"10.1016/j.conbuildmat.2024.138940","DOIUrl":"10.1016/j.conbuildmat.2024.138940","url":null,"abstract":"<div><div>This study experimentally investigated the quasi-static and dynamic compressive stress-strain behaviours of wet-sieved mortar (WSM) at 20 °C–−165 °C. Quasi-static and dynamic compression tests were carried out on 129 WSM cylinders using a 2000-kN universal test machine and a Ø75-mm split Hopkinson pressure bar device combined with a high-speed camera. Strain rates and low temperatures greatly influenced the failure processes and modes of WSM materials subjected to dynamic compression loadings. Test results showed that the decreasing temperature enhanced the strain rate effects on compressive strength and strain, modulus of elasticity, and specific energy absorption. Specifically, compared with the static compressive strength at ambient temperatures, the compressive strength at a strain rate of 200 s-1 was increased by 106.7 % and 251.2 % as the temperature equalled to 20 °C and −165 °C, respectively. Furthermore, empirical equations of low-temperature dynamic increasing factors were established through regression analyses. Finally, a modified low-temperature dynamic stress-strain model was proposed for WSM materials. Validations confirmed that the developed model reasonably described the stress-strain behaviours of WSM materials at 20 °C–−165 °C. The study results can be utilized to optimize the design of concrete at low temperatures, and the proposed stress-strain relationships can be employed to conduct more precise dynamic mesoscopic numerical simulations.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 138940"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-carbon cementitious materials: Scale-up potential, environmental impact and barriers 低碳水泥基材料：推广潜力、环境影响和障碍

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139087

Muhammad Riaz Ahmad , Ana Fernàndez-Jimenez , Bing Chen , Zhen Leng , Jian-Guo Dai

{"title":"Low-carbon cementitious materials: Scale-up potential, environmental impact and barriers","authors":"Muhammad Riaz Ahmad , Ana Fernàndez-Jimenez , Bing Chen , Zhen Leng , Jian-Guo Dai","doi":"10.1016/j.conbuildmat.2024.139087","DOIUrl":"10.1016/j.conbuildmat.2024.139087","url":null,"abstract":"<div><div>The construction industry's heavy reliance on ordinary Portland cement (OPC) significantly contributes to global carbon emissions, accounting for 7–9 % of CO<sub>2</sub> emissions. This paper reviews low-carbon cementitious materials (LCCMs) as sustainable alternatives to OPC. Key LCCMs examined include supplementary cementitious materials (SCMs), limestone calcined clay cements (LC3), alkali-activated materials (AAMs), belite-rich Portland cements (BRPCs), ye’elimite-rich cements (YRCs), and non-hydraulic carbonatable binders (CBs). The paper examines the reaction mechanisms, hydration products, and properties of these materials, whereas scalability potential, cost, environmental impact, barriers, and research gaps are also highlighted. LC3 demonstrates high scalability potential due to its similarities with OPC, cost-effectiveness, and the abundant availability of raw materials. Environmentally, AAMs offer the most significant impact reduction, achieving a 40–75 % decrease compared to OPC, followed by LC3 (∼40 %), CBs (∼37 %), YRC (∼20–25 %), and BRPC (∼10 %). However, the costs of AAMs, YRC, and CBs may be higher than OPC and other LCCMs. Technical challenges and research gaps for LCCMs include low reactivity of SCMs, low early-age strength, prolonged setting times, availability of suitable activators, finding compatible superplasticizers, and a lack of long-term performance studies, which shall be further explored in the future. Existing infrastructure may not be adaptable for the new LCCMs, which may require a significant initial investment. Policy barriers are also significant, as updating standards is linked with the satisfactory long-term performance of LCCMs and is hindered by the dominance of OPC market. There is a need of enhanced collaboration efforts among researchers, industry, and policymakers to overcome these technical, economic, and policy barriers, paving the way for sustainable construction practices.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 139087"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance evaluation of Stone Mastic Asphalt (SMA) mixtures with textile waste fibres 含纺织废纤维的石子胶凝沥青 (SMA) 混合物的性能评估

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139125

Wilder Rodríguez , Julián Rivera , Miguel Sevillano , Tania Torres

引用次数: 0

Efflorescence behavior and mechanism of burnt coal cinder-based geopolymers under different alkali activators 不同碱活化剂作用下烧煤渣基土工聚合物的侵蚀行为和机理

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139057

Muyang Huang , Shenxu Bao , Yimin Zhang , Zichen Zhou , Xiangke Jiao

{"title":"Efflorescence behavior and mechanism of burnt coal cinder-based geopolymers under different alkali activators","authors":"Muyang Huang , Shenxu Bao , Yimin Zhang , Zichen Zhou , Xiangke Jiao","doi":"10.1016/j.conbuildmat.2024.139057","DOIUrl":"10.1016/j.conbuildmat.2024.139057","url":null,"abstract":"<div><div>Efflorescence of geopolymers is a common phenomenon, which is caused by overuse of activators and dissolution-crystallization of carbonate. It has been widely focused on, but its behavior and mechanism remain highly disputed. In the study, the behavior and mechanism of four alkali-activated burnt coal cinder-based geopolymers under two curing conditions of intensifying and inhibiting efflorescence was discussed. The study results show that the deterioration of geopolymer properties caused by efflorescence has a strong timeliness and is closely related to the progress of geopolymerization. Furthermore, through comparative verification of performance testing and phases analysis, the direct factor of the degradation of geopolymer properties is not the carbonate produced by excessive alkaline activators. The direct factor of it is that soluble active components (Si, Al or P) are carried to the surface of the geopolymer by the efflorescence substances, resulting in the permanent loss of gel products. Moreover, the efflorescence also shows a complex and close relationship with the types of activator combination, pore structure and curing system. The perception of the association between efflorescence formation and affecting factors provides important insights into the manufacturing and application of geopolymer related materials.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 139057"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crack propagation characterization of concrete under non-uniform corrosion of steel strand using digital image correlation 利用数字图像关联分析钢绞线非均匀腐蚀下混凝土裂缝扩展特征

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139166

Yafei Ma , Jie Yang , Xiaochao Su , Anyin Peng , Lei Wang , Ke Huang

{"title":"Crack propagation characterization of concrete under non-uniform corrosion of steel strand using digital image correlation","authors":"Yafei Ma , Jie Yang , Xiaochao Su , Anyin Peng , Lei Wang , Ke Huang","doi":"10.1016/j.conbuildmat.2024.139166","DOIUrl":"10.1016/j.conbuildmat.2024.139166","url":null,"abstract":"<div><div>The steel strands in pretensioned prestressed concrete are susceptible to corrosion and expansion due to threatening environmental conditions, leading to concrete cracking, reduction in the bearing capacity and durability of structures. This paper presents an electrochemical accelerated corrosion test on steel strands. The internal strain, surface strain, and crack propagation in concrete specimens during the entire corrosion process of steel strands are continuously monitored using the digital image correlation (DIC) method and strain detection methods. The study investigates the effects of concrete cover thickness and stirrup arrangement on the surface strain field and crack propagation in concrete. A mesoscopic numerical model of concrete cracking under non-uniform corrosion of steel strands is established. The reliability of the constructed model is verified using experimental data. The results show that compared with traditional strain detection methods, the DIC method can detect initial cracks on the concrete surface 20 hours in advance. The proposed non-uniform mesoscopic simulation model can accurately simulate the entire process of concrete cracking induced by non-uniform corrosion of steel strands. The finite element (FE) model is consistent with the results obtained from DIC monitoring.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 139166"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the effects of organic-inorganic composite inhibitor on fume emissions of rubber modified asphalt 有机-无机复合抑制剂对橡胶改性沥青烟尘排放的影响研究

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139206

Jiahao Liu , Cong Qi , Quantao Liu , Huan Wang , Chong Wang , Yonghan Zhang , Shaopeng Wu , Na Li

{"title":"Study on the effects of organic-inorganic composite inhibitor on fume emissions of rubber modified asphalt","authors":"Jiahao Liu , Cong Qi , Quantao Liu , Huan Wang , Chong Wang , Yonghan Zhang , Shaopeng Wu , Na Li","doi":"10.1016/j.conbuildmat.2024.139206","DOIUrl":"10.1016/j.conbuildmat.2024.139206","url":null,"abstract":"<div><div>During the construction process, the rubber asphalt (RA) results in the generation of considerable quantities of noxious fumes, endangering the safety of those employed in the field and causing unavoidable environmental damage. The traditional inorganic fume suppressants can reduce fume emissions, but compromise the low-temperature performance of asphalt. This paper addresses this issue by employing a combination of organic inhibitor and inorganic fume suppressant. Mechanical and rheological experiments reveal that the organic-inorganic composite inhibitor simultaneously enhance the rutting resistance of RA at high temperatures and the cracking resistance at low temperatures. The results of gas chromatography-mass spectrometry (GC-MS) show that the types of hydrocarbon derivatives (HYDs) and sulfides substances (SCs) in the volatile organic compounds (VOCs) of inorganic- organic composite inhibitor modified asphalt (INOORA) are reduced by 71.4 % and 76.9 % compared to RA, respectively. Brunauer-Emmett-Teller (BET), Fourier Transform Infrared Test (FT-IR), and Thermogravimetric analysis (TG-DTG) results suggest that the organic inhibitor reacts chemically with rubber asphalt components, increasing the size of certain small molecular VOCs in rubber asphalt, which is more readily adsorbed by the pores of diatomaceous earth, thereby synergistically reducing the VOCs concentration in rubber asphalt. The results provided a new method for preventing the volatilization of noxious substances from rubber asphalt, without compromising its road performance.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 139206"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on capillary water absorption characteristics of aeolian sand concrete under sulfate freeze-thaw coupling based on fractal theory 基于分形理论的硫酸盐冻融耦合条件下风化砂混凝土毛细吸水特性研究

IF 7.4 1区工程技术

Construction and Building Materials Pub Date : 2024-11-15 DOI: 10.1016/j.conbuildmat.2024.139184

Wei Dong , Junfeng Wang

{"title":"Research on capillary water absorption characteristics of aeolian sand concrete under sulfate freeze-thaw coupling based on fractal theory","authors":"Wei Dong , Junfeng Wang","doi":"10.1016/j.conbuildmat.2024.139184","DOIUrl":"10.1016/j.conbuildmat.2024.139184","url":null,"abstract":"<div><div>Northwest China, represented by Inner Mongolia, is rich in desert resources, and the reasonable use of aeolian sand (AS) as fine aggregate for the preparation of aeolian sand concrete (ASC) can not only reduce land desertification but also alleviate the shortage of river sand (RS) resources. At the same time, more salt lakes in Inner Mongolia lead to concrete structures often accompanied by salt corrosion and freeze-thaw cycle (FTC) and other erosion effects. Therefore, this paper carries out the capillary water absorption (CWA) test on ASC under the coupling of sulphate FTC, and analyses the effects of different erosive environments (5 %Na<sub>2</sub>SO<sub>4</sub>, 10 %Na<sub>2</sub>SO<sub>4</sub>, 5 %Na<sub>2</sub>SO<sub>4</sub>+3.5 %NaCl) and the amount of AS dosage (0 %, 20 %, 100 %) on the CWA performance of ASC. The results show that, under the coupling effect of sulphate FTC, the expansion stress produced by moisture phase change and erosion products increases continuously, the initial defects inside the concrete develop continuously, the percentage of gel pores and less harmful pores decreases gradually, the compressive strength, relative dynamic elastic modulus (RDEM) and mass decrease gradually, and the concrete is damaged most seriously in the composite salt environment. The CWA of ASC mainly occurs before 2 h<sup>1/2</sup>, and there is a good correlation between the initial water absorption rate (IWAR) and the depth of CWA and the degree of freeze-thaw damage. The cumulative water absorption and the IWAR of ASC became smaller with the increase of AS dosage. By applying the fractal theory to the pore structure, it was found that the relationship between the fractal dimension and the IWAR and damage degree was good, and that a reasonable increase in the proportion of small pores below 50 nm was more favourable to the frost durability of ASC.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"455 ","pages":"Article 139184"},"PeriodicalIF":7.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0