{"title":"Rheological And Mechanical Performances Of Concrete Manufactured By Using Washing Water Of Concrete Mixing Transport Trucks","authors":"L. Coppola, S. Lorenzi, Simone Pellegrini","doi":"10.14359/51688592","DOIUrl":"https://doi.org/10.14359/51688592","url":null,"abstract":"The paper deals with the study of rheological and mechanical properties of concretes manufactured by using wash waters as partial replacement of drinking water. Concretes were manufactured by using only water utilized to wash concrete mixing transport trucks. Three different wash waters, with solid residue amount in the range 0.13% - 5.5% by mass were used. The waters were directly sampled in an innovative beton wash system. 30 and 35 concrete grades were manufactured. The superplasticizer dosage was adjusted in order to attain a slump value of 210 mm (8.3 in.) at the end of the mixing procedure. The workability and workability loss up to 60 minutes were also evaluated. The compressive strength at 1, 7 and 28 days was measured on cubic specimens. At 60 minutes, fresh water was added to \u0000compensate slump loss (retempering procedure) and a second series of cubic specimens was taken to evaluate compressive strength penalization. Suspended solids in wash water strongly influences the workability retention: the higher the solid content, the lower the workability loss over time and, hence, the water demand to compensate the slump \u0000decrease. At the same w/c ratio, the presence of solid particles in wash water causes an increase in the early compressive strength. A modification of the aggregate grading curve, consisting in reducing the sand fine fractions, should be considered, to manufacture concretes comparable to traditional ones.","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"6 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115730429","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}
{"title":"Analyzing Factors Of Variability In Energy-Use In Concrete Production","authors":"S. Fujimoto","doi":"10.14359/51688597","DOIUrl":"https://doi.org/10.14359/51688597","url":null,"abstract":"","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130583114","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}
S. Collepardi, A. Borsoi, M. Collepardi, A. Curzio
{"title":"Self Compacting Light-Weight Concretes With Ground Bottom Ash From Municipal Solid Waste Incinerators (MSWI)","authors":"S. Collepardi, A. Borsoi, M. Collepardi, A. Curzio","doi":"10.14359/51688589","DOIUrl":"https://doi.org/10.14359/51688589","url":null,"abstract":"","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128863237","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}
E. Martinelli, J. Barros, G. Etse, L. Ferrara, P. Folino, E. Koenders, R. D. T. Filho
{"title":"The Encore Project: Sustainable Solutions For Cementitious Materials","authors":"E. Martinelli, J. Barros, G. Etse, L. Ferrara, P. Folino, E. Koenders, R. D. T. Filho","doi":"10.14359/51688604","DOIUrl":"https://doi.org/10.14359/51688604","url":null,"abstract":"The authors wish to acknowledge the support to the networking activities provided by \"EnCoRe\" project (www.encore-fp7.unisa.it) (FP7-PEOPLE-2011-IRSES, n. 295283) funded by the European Union as part of the 7th Framework Programme for Research and Innovation.","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122065557","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}
Federica Selicato, Mauro Moro, L. Bertolini, A. Nanni
{"title":"Towards Sustainability Of Concrete Without Chloride Limits","authors":"Federica Selicato, Mauro Moro, L. Bertolini, A. Nanni","doi":"10.14359/51688610","DOIUrl":"https://doi.org/10.14359/51688610","url":null,"abstract":"","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124676671","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}
{"title":"TRC Precast Façade SANDWICH Panel For Energy Retrofitting Of Existing Buildings","authors":"I. Colombo, M. Colombo, M. Prisco","doi":"10.14359/51688590","DOIUrl":"https://doi.org/10.14359/51688590","url":null,"abstract":"Residential and commercial buildings are responsible of a large energy consumption, both for the heating in winter and the air conditioning in summer. Standards have introduced severe limits to guarantee the energy saving in new buildings; however, there is a significant need of retrofitting existing buildings, because of their large impact on the real estate in continents like Europe. In the framework of a FP7 European project, a multilayer prefabricated façade panel is proposed as an outdoor solution. It is characterized by an internal EPS layer, 100 mm thick and by two external layers made of textile reinforced concrete (TRC), 12 mm thick. The insulating material is also used to transfer the shear between the external TRC layers. The maximum size of the panel is 1.50 x 3.30 m; the panel height is properly chosen in order to fasten it to the frame concrete beams. In the paper the design of the panel and the results of tests performed on full scale panels are resumed. The panels were punctually fastened on the corners through suitable anchors and were loaded by means of a distributed load (considering wind pressure and suction as the main load acting on the panel). The panels were also tested according to a 4 point-bending set-up up to collapse to check their ultimate limit state on full-size prototypes.","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123165071","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}
{"title":"Greener Concrete Using Post-Consumer Products","authors":"T. Naik, Rakesh Kumar, G. Moriconi","doi":"10.14359/51688606","DOIUrl":"https://doi.org/10.14359/51688606","url":null,"abstract":"","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122986499","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}
{"title":"Natural Carbonation Of Concrete","authors":"Federico Aguayo, T. Drimalas, K. Folliard","doi":"10.14359/51688562","DOIUrl":"https://doi.org/10.14359/51688562","url":null,"abstract":"","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122219275","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}
{"title":"Structural Concrete In The Age Of Sustainable Development","authors":"V. Falikman, B. Gusev","doi":"10.14359/51688596","DOIUrl":"https://doi.org/10.14359/51688596","url":null,"abstract":"","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125146070","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}
L. Berto, H. Budelmann, I. Finozzi, A. Saetta, D. Talledo
{"title":"Coupled Damage Model For RC Elements Assessment Under Environmental Degradation","authors":"L. Berto, H. Budelmann, I. Finozzi, A. Saetta, D. Talledo","doi":"10.14359/51688565","DOIUrl":"https://doi.org/10.14359/51688565","url":null,"abstract":"","PeriodicalId":265581,"journal":{"name":"SP-305: Durability and Sustainability of Concrete Structures","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122494395","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}