{"title":"Reinforcement of Hollow Concrete Beams with FRP Bars Made from Recycled Materials","authors":"R. Thomas, S. Peethamparan","doi":"10.14359/51688143","DOIUrl":"https://doi.org/10.14359/51688143","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115268357","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}
A. K. Tiwari, Maulik. M. Panseriya, P. Mathur, Subrato Chowdhury
{"title":"Effect of Supplementary Cementitious Materials on the Rheology of Blended Cements","authors":"A. K. Tiwari, Maulik. M. Panseriya, P. Mathur, Subrato Chowdhury","doi":"10.14359/51688135","DOIUrl":"https://doi.org/10.14359/51688135","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125150014","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":"Case Studies of CO2 Utilization in Concrete","authors":"S. Monkman, Mark MacDonald","doi":"10.14359/51688123","DOIUrl":"https://doi.org/10.14359/51688123","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129003434","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}
The knowledge of dissolution processes of aggregates and supplementary cementing materials (SCMs) in alkaline solutions can help to describe the expansion of concretes caused by alkali-silica reaction (ASR) and the effects to avoid ASR by using SCMs in more details. Therefore, dissolution experiments in alkaline solutions under different pH values and different temperatures were performed using aggregates in the original grain size and SCMs in different ratios. The concentrations of soluble silica and additionally alumina were determined by ICP-OES. The investigations showed that up to now the “best” conditions to explain the damage behavior of concrete structures are a pH value of 13 (e.g. 0.1 M KOH solution) and a temperature of 80 °C. The evaluation bases on the parameter “excess silica” which is calculated from the dissolved silica and alumina of the aggregates and the SCMs. It was demonstrated that SCMs reduce and sometimes stop the dissolution of aggregates. The efficiency of the SCMs depends on their amount and chemical composition.
了解骨料和补充胶凝材料(SCMs)在碱性溶液中的溶解过程，有助于更详细地描述碱-硅反应(ASR)引起的混凝土膨胀以及使用SCMs避免ASR的效果。因此，在不同pH值和不同温度的碱性溶液中，采用原始粒径的团聚体和不同比例的SCMs进行溶解实验。用ICP-OES测定了可溶性二氧化硅和氧化铝的浓度。研究表明，到目前为止，解释混凝土结构破坏行为的“最佳”条件是pH值为13(例如0.1 M KOH溶液)和温度为80°C。该评价基于“过量二氧化硅”参数，该参数是由团聚体和SCMs中溶解的二氧化硅和氧化铝计算得出的。研究表明，SCMs可以减少甚至有时阻止聚集体的溶解。SCMs的效率取决于它们的数量和化学成分。
{"title":"Aggregate Reactivity and the Efficiency of Supplementary Cementing Materials","authors":"Jens Kronemann, Klaus-Juergen Huenger","doi":"10.14359/51688146","DOIUrl":"https://doi.org/10.14359/51688146","url":null,"abstract":"The knowledge of dissolution processes of aggregates and supplementary cementing materials (SCMs) in alkaline solutions can help to describe the expansion of concretes caused by alkali-silica reaction (ASR) and the effects to avoid ASR by using SCMs in more details. Therefore, dissolution experiments in alkaline solutions under different pH values and different temperatures were performed using aggregates in the original grain size and SCMs in different ratios. The concentrations of soluble silica and additionally alumina were determined by ICP-OES. The investigations showed that up to now the “best” conditions to explain the damage behavior of concrete structures are a pH value of 13 (e.g. 0.1 M KOH solution) and a temperature of 80 °C. The evaluation bases on the parameter “excess silica” which is calculated from the dissolved silica and alumina of the aggregates and the SCMs. It was demonstrated that SCMs reduce and sometimes stop the dissolution of aggregates. The efficiency of the SCMs depends on their amount and chemical composition.","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124156539","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":"Phase Compositions and Strengths of One-Year-Old Ternary Cement Composites","authors":"L. Krajči, I. Janotka, M. Bačuvčík, S. Mojumdar","doi":"10.14359/51688129","DOIUrl":"https://doi.org/10.14359/51688129","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129251799","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":"Microspheres-Based Admixture for Free-Thaw Durability of Concrete","authors":"F. S. Ong, C. Nmai, James C. Smith, J. Luciano","doi":"10.14359/51688138","DOIUrl":"https://doi.org/10.14359/51688138","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122897927","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}
A. Ramezanianpour, S. Ghahari, AmirMohammad Ramezaninapour, K. Esmaeili
{"title":"Effect of Steam Curing on Mechanical Properties of Self-Compacting Concrete Containing Pozzolan","authors":"A. Ramezanianpour, S. Ghahari, AmirMohammad Ramezaninapour, K. Esmaeili","doi":"10.14359/51688124","DOIUrl":"https://doi.org/10.14359/51688124","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116838680","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}
A. Ramezanianpour, Ehsan Jahangiri, Babak Ahmadi, F. Moodi
{"title":"Evaluation and Modification of fib Service Life Design Model for Persian Gulf Region","authors":"A. Ramezanianpour, Ehsan Jahangiri, Babak Ahmadi, F. Moodi","doi":"10.14359/51688145","DOIUrl":"https://doi.org/10.14359/51688145","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128421798","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":"Properties of Steam-Cured Fly Ash Concrete Using Porous Ceramic Waste Aggregate","authors":"P. Bui, Y. Ogawa, Naoki Doi, K. Kawai, R. Sato","doi":"10.14359/51688144","DOIUrl":"https://doi.org/10.14359/51688144","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115691378","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}
A. Telesca, M. Marroccoli, M. Tomasulo, G. Valenti
{"title":"Hydration Properties and Technical Behavior of Calcium Sulfoaluminate Cements","authors":"A. Telesca, M. Marroccoli, M. Tomasulo, G. Valenti","doi":"10.14359/51688137","DOIUrl":"https://doi.org/10.14359/51688137","url":null,"abstract":"","PeriodicalId":254826,"journal":{"name":"SP-303: Thirteenth International Conference on Advances in Concrete Technology and Sustainability Issues","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126517939","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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