Pub Date : 2023-04-01DOI: 10.1051/E3SCONF/202125602027
H. Xiao, Feiyu Long, Linjun Zeng, Wenqin Zhao, J. Wang, Yihang Li
Integrated energy system (IES) is an effective way to realize the efficient utilization of energy. Under the deregulated electricity market, IES operator gains profits by providing customers with energy service, including electricity, heat or cooling energy. With the deepening of market reform, higher penetration rate of renewable energy, economic risks embed in the IES. Based on this, an optimal scheduling model of regional IES considering uncertainties is proposed, aiming at maximizing the profits. Scenario analysis method has been adopted to model the uncertainties: Markov-Chain-Monte-Carlo (MCMC) sampling method, which has a better performance in fitting the probability distribution, is utilized to generate scenarios; K-means clustering method is applied to narrow down the sampling sets. By replacing the parameters in the deterministic model with the sampling sets, a series of optimal results can be achieved. The case study shows that the cooling storage tank can improve the economic benefits about 4.97% by converting electricity to cooling energy at lower price period and releasing energy at peak hours. Besides, through the proposed optimization model, operators can have a straight understanding of the venture brought by the uncertainties and a more reliable scheduling result is formed for reference.
{"title":"Optimal scheduling of regional integrated energy system considering multiple uncertainties","authors":"H. Xiao, Feiyu Long, Linjun Zeng, Wenqin Zhao, J. Wang, Yihang Li","doi":"10.1051/E3SCONF/202125602027","DOIUrl":"https://doi.org/10.1051/E3SCONF/202125602027","url":null,"abstract":"Integrated energy system (IES) is an effective way to realize the efficient utilization of energy. Under the deregulated electricity market, IES operator gains profits by providing customers with energy service, including electricity, heat or cooling energy. With the deepening of market reform, higher penetration rate of renewable energy, economic risks embed in the IES. Based on this, an optimal scheduling model of regional IES considering uncertainties is proposed, aiming at maximizing the profits. Scenario analysis method has been adopted to model the uncertainties: Markov-Chain-Monte-Carlo (MCMC) sampling method, which has a better performance in fitting the probability distribution, is utilized to generate scenarios; K-means clustering method is applied to narrow down the sampling sets. By replacing the parameters in the deterministic model with the sampling sets, a series of optimal results can be achieved. The case study shows that the cooling storage tank can improve the economic benefits about 4.97% by converting electricity to cooling energy at lower price period and releasing energy at peak hours. Besides, through the proposed optimization model, operators can have a straight understanding of the venture brought by the uncertainties and a more reliable scheduling result is formed for reference.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42220935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.1051/e3sconf/202337103074
E. Karanina, K. Kartavykh
The aim of the present research is to educe the environmental aspects of sustainable development of the regional areas. At present the ecological factors determine largely the opportunities for the economic strength of the regional systems. The article presents the index calculation of the environmental sustainability of the regional system using the example of the Kirov Region. As a result of the research, it was defined that the development of the ecological situation in the region is inclined to be sustainable, and at the same time it is uptrending. The main factors that hamper the improvement in the development of the environmental sustainability of the regional system were educed, some solutions of the problems were offered.
{"title":"Environmental Aspects of Sustainable Regional Development","authors":"E. Karanina, K. Kartavykh","doi":"10.1051/e3sconf/202337103074","DOIUrl":"https://doi.org/10.1051/e3sconf/202337103074","url":null,"abstract":"The aim of the present research is to educe the environmental aspects of sustainable development of the regional areas. At present the ecological factors determine largely the opportunities for the economic strength of the regional systems. The article presents the index calculation of the environmental sustainability of the regional system using the example of the Kirov Region. As a result of the research, it was defined that the development of the ecological situation in the region is inclined to be sustainable, and at the same time it is uptrending. The main factors that hamper the improvement in the development of the environmental sustainability of the regional system were educed, some solutions of the problems were offered.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48305695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.1051/e3sconf/202018701003
N. Ito
Asia is one of the most productive agricultural regions in the world, however the quality control of agricultural food products should be severely and strictly managed from the view point of food security and safety due to the increase of food feeding demand to cover the drastic and rapidly increase of world human population in recent years. In this paper the current status of Asian agriculture is overviewed first, then the Asian agrifuture is discussed and proposed from the community based viewpoint how it should / can be promoted and achieved.
{"title":"Community based Asian agrifuture: how it can be achieved","authors":"N. Ito","doi":"10.1051/e3sconf/202018701003","DOIUrl":"https://doi.org/10.1051/e3sconf/202018701003","url":null,"abstract":"Asia is one of the most productive agricultural regions in the world, however the quality control of agricultural food products should be severely and strictly managed from the view point of food security and safety due to the increase of food feeding demand to cover the drastic and rapidly increase of world human population in recent years. In this paper the current status of Asian agriculture is overviewed first, then the Asian agrifuture is discussed and proposed from the community based viewpoint how it should / can be promoted and achieved.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48210181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1051/e3sconf/202338804009
A. Kurniawan
Indonesia as a country that has a lot of traditional cultures, requires attention especially among generation-Z to maintain its sustainability. In many cases, various Indonesian cultures are often claimed by other countries as part of their culture, sometimes for the political purposes, economic, or even industrial motives. Thus, it is important to introduce and strengthen the traditional cultures knowledge, especially to generation-Z as the nation's successors. This study was conducted by creating a virtual gallery exhibition as a manifestation of new media forms that can adapt to the trends from generation-Z. The virtual gallery contains traditional attractions, culinary, dance, tourism, music, folklores, and ethnic houses. Some contents in this virtual gallery applies augmented reality technology with image tracking based. This research used mix method with qualitative and quantitative approach to explore the generation-Z expression. Results, virtual gallery gives an effective penetration to increase the traditional culture knowledge among generation- Z.
{"title":"Virtual Art Exhibition to Encourage Traditional Culture Knowledge for Generation-Z","authors":"A. Kurniawan","doi":"10.1051/e3sconf/202338804009","DOIUrl":"https://doi.org/10.1051/e3sconf/202338804009","url":null,"abstract":"Indonesia as a country that has a lot of traditional cultures, requires attention especially among generation-Z to maintain its sustainability. In many cases, various Indonesian cultures are often claimed by other countries as part of their culture, sometimes for the political purposes, economic, or even industrial motives. Thus, it is important to introduce and strengthen the traditional cultures knowledge, especially to generation-Z as the nation's successors. This study was conducted by creating a virtual gallery exhibition as a manifestation of new media forms that can adapt to the trends from generation-Z. The virtual gallery contains traditional attractions, culinary, dance, tourism, music, folklores, and ethnic houses. Some contents in this virtual gallery applies augmented reality technology with image tracking based. This research used mix method with qualitative and quantitative approach to explore the generation-Z expression. Results, virtual gallery gives an effective penetration to increase the traditional culture knowledge among generation- Z.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57930135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1051/e3sconf/202338804037
M. Herlina, Banu Rinaldi, A. Rahmasari
Entrepreneurship is essential to Indonesia's economic development. It is evidenced by 99.9 percent of all Indonesian firms are micro, small, and medium-sized enterprises (MSMEs). Young generations play an essential part in entrepreneurial ventures since they are more likely to start a new business than older generations. Moreover, Gen Y and Gen Z are more adept with digital learning behaviors. This study adds significantly to the existing entrepreneurial literature by examining social media learning on knowledge-based activities. The Rasch model was used in this study. It evaluated social media as a digital platform where newbie entrepreneurs can use resources and capabilities through knowledge-based activities to develop digital learning among them. The study's outcomes demonstrate a significant difference in exploitative behaviors between gen Y and gen Z. On the contrary, there are no significant differences in both generations' explorative and knowledge-sharing behaviors. It means they have the same level of explorative and knowledge-sharing behaviors.
{"title":"Digital Learning Experience among Newbie Entrepreneurs","authors":"M. Herlina, Banu Rinaldi, A. Rahmasari","doi":"10.1051/e3sconf/202338804037","DOIUrl":"https://doi.org/10.1051/e3sconf/202338804037","url":null,"abstract":"Entrepreneurship is essential to Indonesia's economic development. It is evidenced by 99.9 percent of all Indonesian firms are micro, small, and medium-sized enterprises (MSMEs). Young generations play an essential part in entrepreneurial ventures since they are more likely to start a new business than older generations. Moreover, Gen Y and Gen Z are more adept with digital learning behaviors. This study adds significantly to the existing entrepreneurial literature by examining social media learning on knowledge-based activities. The Rasch model was used in this study. It evaluated social media as a digital platform where newbie entrepreneurs can use resources and capabilities through knowledge-based activities to develop digital learning among them. The study's outcomes demonstrate a significant difference in exploitative behaviors between gen Y and gen Z. On the contrary, there are no significant differences in both generations' explorative and knowledge-sharing behaviors. It means they have the same level of explorative and knowledge-sharing behaviors.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57930249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1051/e3sconf/202338804041
R. R. A. Rahayu, A. Ratum, Sangid Gani Zaini, Citra Fadillah
The tourism sector is one of the most important aspects in its participation in building the economy of a country. Particularly in West Java, there are many places that can be developed, one of which is Bungbulang Village in Cianjur. However, Bungbulang Village faced many problems. Even though it has been declared a Tourism Village by the local government, it has not been known well by public. Some of the problems are the natural potential that has not been fully utilized, low education level, and below average economy. The pandemic causes a decrease in the level of visits to tourist areas. With these problems, community empowerment is necessary for the progress of Bungbulang Village. Increasing knowledge of the potential of nature and its care are vital, but no less important is the knowledge of branding so that Bungbulang Village is better known by the wider community. This research is expected to increase people’s knowledge about Bungbulang’s Village through video storytelling. The method used is descriptive qualitative with an ethnographic approach. Data was collected by interview and direct observation in Bungbulang Village. The research will produce video with storytelling approach as Bungbulang Village’s branding tool.
{"title":"Branding using Video Storytelling Approach: Bungbulang’s Village Identity","authors":"R. R. A. Rahayu, A. Ratum, Sangid Gani Zaini, Citra Fadillah","doi":"10.1051/e3sconf/202338804041","DOIUrl":"https://doi.org/10.1051/e3sconf/202338804041","url":null,"abstract":"The tourism sector is one of the most important aspects in its participation in building the economy of a country. Particularly in West Java, there are many places that can be developed, one of which is Bungbulang Village in Cianjur. However, Bungbulang Village faced many problems. Even though it has been declared a Tourism Village by the local government, it has not been known well by public. Some of the problems are the natural potential that has not been fully utilized, low education level, and below average economy. The pandemic causes a decrease in the level of visits to tourist areas. With these problems, community empowerment is necessary for the progress of Bungbulang Village. Increasing knowledge of the potential of nature and its care are vital, but no less important is the knowledge of branding so that Bungbulang Village is better known by the wider community. This research is expected to increase people’s knowledge about Bungbulang’s Village through video storytelling. The method used is descriptive qualitative with an ethnographic approach. Data was collected by interview and direct observation in Bungbulang Village. The research will produce video with storytelling approach as Bungbulang Village’s branding tool.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57930326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1051/e3sconf/202338804044
I. Rifai, A. Jhon, K. Oktriono, E. Marion
Due to the escalating usage of the internet and digital applications in recent years, foreign language learning experiences has become easier, simpler, and more fun for users. Consequently, to maintain those factors, usability and the quality of the platform are two main concerns for platform developers. To provide a personalized, structured, and gamified platform that offers opportunities for social interaction among users, researchers developed a digital language learning platform in middle of 2020. In 2021, the platform was tested on 3200 students who provided feedback on its usability through System Usability Scale. In addition, a small group of students were involved in an FGD session where they shared their experiences in using the platform. The usability test of the platform scored at 58, which implied that the platform still has some room for improvement. Through the FGD session, users could find information and functions related to the application easily and they expressed satisfaction toward the platform’s performance and valued the feedback opportunities. This research contributes to the field of a digital language learning platform development, especially when it is used by the students of higher education who wish to improve their foreign language mastery conveniently.
{"title":"What Makes a Digital Language Learning Platform Work? A Usability and Quality Review","authors":"I. Rifai, A. Jhon, K. Oktriono, E. Marion","doi":"10.1051/e3sconf/202338804044","DOIUrl":"https://doi.org/10.1051/e3sconf/202338804044","url":null,"abstract":"Due to the escalating usage of the internet and digital applications in recent years, foreign language learning experiences has become easier, simpler, and more fun for users. Consequently, to maintain those factors, usability and the quality of the platform are two main concerns for platform developers. To provide a personalized, structured, and gamified platform that offers opportunities for social interaction among users, researchers developed a digital language learning platform in middle of 2020. In 2021, the platform was tested on 3200 students who provided feedback on its usability through System Usability Scale. In addition, a small group of students were involved in an FGD session where they shared their experiences in using the platform. The usability test of the platform scored at 58, which implied that the platform still has some room for improvement. Through the FGD session, users could find information and functions related to the application easily and they expressed satisfaction toward the platform’s performance and valued the feedback opportunities. This research contributes to the field of a digital language learning platform development, especially when it is used by the students of higher education who wish to improve their foreign language mastery conveniently.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57930383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1051/e3sconf/202338901029
I. Papkova, T. Yakovleva
A new mathematical model of a porous functionally graded micro/nano-beam under the action of the Casimir force and the Coulomb force is constructed in this paper. The construction of the mathematical model takes into account the Euler-Bernoulli kinematic model. The dimensional-dependent parameter is taken into account by modified moment theory of elasticity. The variational, differential equations, boundary and initial conditions are derived from Ostrogradsky-Hamiltonian variational principle. The problem of non-linear natural oscillations of a beam under the action of force Casimir and Coulomb force is solved. The influence of the Casimir and Coulomb forces on the nonlinear eigenfrequencies of the micro/nano-beam is shown.
{"title":"Nonlinear Eigen frequencies of a functionally graded porous nano-beam with respect to the coulomb and Casimir forces","authors":"I. Papkova, T. Yakovleva","doi":"10.1051/e3sconf/202338901029","DOIUrl":"https://doi.org/10.1051/e3sconf/202338901029","url":null,"abstract":"A new mathematical model of a porous functionally graded micro/nano-beam under the action of the Casimir force and the Coulomb force is constructed in this paper. The construction of the mathematical model takes into account the Euler-Bernoulli kinematic model. The dimensional-dependent parameter is taken into account by modified moment theory of elasticity. The variational, differential equations, boundary and initial conditions are derived from Ostrogradsky-Hamiltonian variational principle. The problem of non-linear natural oscillations of a beam under the action of force Casimir and Coulomb force is solved. The influence of the Casimir and Coulomb forces on the nonlinear eigenfrequencies of the micro/nano-beam is shown.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57930436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1051/e3sconf/202338804059
A. Kurnianto
“Perang Kembang” is a battle scene between the knights against the giant in traditional shadow puppet performance. A knight who has soft and gentle movement is in stark contrast to the giant who has a rugged and attractive movement. The two contrasting characters can represent a very interesting and beautiful war scene, so this war scene becomes a scene awaiting by the audience, as well as a scene capable of showing the skill of the Puppeteer in the art of puppet movement. But how to adapt the beauty of the shadow puppet shadow "Perang Kembang" scene to the digital animation medium? So that the beauty of puppet motion can still continue to be enjoyed by new generations with new media, especially through digital animation media? So to answer this problem, this study uses art-based research methods by experimenting with the motion of digital animation based on the pattern of movement of the shadow of the “Perang Kembang” scenes. Adaptation motion puppet scene " Perang Kembang" to the digital medium can be done through some experimental methods of motion with the best output in the form of an animated silhouette. The choice of silhouette animation refers to the nature of puppets as a the art of shadow play. The results of this study are the "Perang Kembang" puppet motion experimentation in the form of digital silhouette animation.
{"title":"The Sustainable Adaptation of Traditional Art into Digital Medium (Case Study the Motion of Shadow Puppet Scene Perang Kembang)","authors":"A. Kurnianto","doi":"10.1051/e3sconf/202338804059","DOIUrl":"https://doi.org/10.1051/e3sconf/202338804059","url":null,"abstract":"“Perang Kembang” is a battle scene between the knights against the giant in traditional shadow puppet performance. A knight who has soft and gentle movement is in stark contrast to the giant who has a rugged and attractive movement. The two contrasting characters can represent a very interesting and beautiful war scene, so this war scene becomes a scene awaiting by the audience, as well as a scene capable of showing the skill of the Puppeteer in the art of puppet movement. But how to adapt the beauty of the shadow puppet shadow \"Perang Kembang\" scene to the digital animation medium? So that the beauty of puppet motion can still continue to be enjoyed by new generations with new media, especially through digital animation media? So to answer this problem, this study uses art-based research methods by experimenting with the motion of digital animation based on the pattern of movement of the shadow of the “Perang Kembang” scenes. Adaptation motion puppet scene \" Perang Kembang\" to the digital medium can be done through some experimental methods of motion with the best output in the form of an animated silhouette. The choice of silhouette animation refers to the nature of puppets as a the art of shadow play. The results of this study are the \"Perang Kembang\" puppet motion experimentation in the form of digital silhouette animation.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57930489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1051/e3sconf/202338901032
Kseniya Stenechkina
In addition to the positive effect of the introduction of a superplasticizer, there are also negative ones: an increase in the period of structure formation, a significant air entrainment and, as a result, a decrease in strength. One of the ways to reduce the negative impact on the structure and properties of concrete composites is the method of preparing a suspension, which consists in first dissolving 10% of the amount of cement in all the mixing water in a concrete mixer for 1-2 minutes. Then load the rest of the cement and aggregate. Preliminary dissolution in water mixing with superplasticizer leads to the formation of a colloidal solution containing an increased amount of micro- and nanoparticles. When a superplasticizer is introduced into a cement-water suspension, particles with a high degree of dispersion are formed, as well as calcium hydrosilicate cristolites with a size of 1-3 nm. This sharply increases the activity of the superplasticizer and, consequently, improves the mobility of the concrete mixture. For example, from P2 to P3, from P3 to P5. This allows to reduce the consumption of the additive by 1.5 - 2 times. It has been established that the superplasticizer can be adsorbed only on hydrate neoplasms. For pre-treatment, it is necessary to use special equipment with high energy consumption such as RPA, fine grinding mills, disintegrators and various activators. Obtaining a cement-water suspension can be carried out in mortar, concrete mixers, in mixers of any type. The concrete mixture consists of cement, crushed stone, sand, water and superplasticizer C-3, determination of the draft of the cone using the Abrams cone, determination of the cubic strength using a hydraulic press in accordance with GOST 10180-2012. It becomes possible to increase the grade in terms of workability as a result of preliminary hydroactivation of the plasticizing additive, which leads to a decrease in its consumption. This method of hydroactivation of superplasticizers for the manufacture of cement concretes can be used to save the consumption of a plasticizing additive.
{"title":"The use of superplasticizers in multicomponent concrete mixtures","authors":"Kseniya Stenechkina","doi":"10.1051/e3sconf/202338901032","DOIUrl":"https://doi.org/10.1051/e3sconf/202338901032","url":null,"abstract":"In addition to the positive effect of the introduction of a superplasticizer, there are also negative ones: an increase in the period of structure formation, a significant air entrainment and, as a result, a decrease in strength. One of the ways to reduce the negative impact on the structure and properties of concrete composites is the method of preparing a suspension, which consists in first dissolving 10% of the amount of cement in all the mixing water in a concrete mixer for 1-2 minutes. Then load the rest of the cement and aggregate. Preliminary dissolution in water mixing with superplasticizer leads to the formation of a colloidal solution containing an increased amount of micro- and nanoparticles. When a superplasticizer is introduced into a cement-water suspension, particles with a high degree of dispersion are formed, as well as calcium hydrosilicate cristolites with a size of 1-3 nm. This sharply increases the activity of the superplasticizer and, consequently, improves the mobility of the concrete mixture. For example, from P2 to P3, from P3 to P5. This allows to reduce the consumption of the additive by 1.5 - 2 times. It has been established that the superplasticizer can be adsorbed only on hydrate neoplasms. For pre-treatment, it is necessary to use special equipment with high energy consumption such as RPA, fine grinding mills, disintegrators and various activators. Obtaining a cement-water suspension can be carried out in mortar, concrete mixers, in mixers of any type. The concrete mixture consists of cement, crushed stone, sand, water and superplasticizer C-3, determination of the draft of the cone using the Abrams cone, determination of the cubic strength using a hydraulic press in accordance with GOST 10180-2012. It becomes possible to increase the grade in terms of workability as a result of preliminary hydroactivation of the plasticizing additive, which leads to a decrease in its consumption. This method of hydroactivation of superplasticizers for the manufacture of cement concretes can be used to save the consumption of a plasticizing additive.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57930500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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