{"title":"Evaluation of Test Methods for Determining the Resistance of Concrete to Chloride-Ion Penetration","authors":"L. Jiang, M. H. Zhang, V. Malhotra","doi":"10.14359/13244","DOIUrl":"https://doi.org/10.14359/13244","url":null,"abstract":"","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130202017","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":"Influence of Co-Combustion on the Quality of Coal Fly Ash","authors":"A. Sarabèr, J. V. D. Berg","doi":"10.14359/13288","DOIUrl":"https://doi.org/10.14359/13288","url":null,"abstract":"","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116301020","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}
penetration Sustainable development and durability of self-compacting concretes Macroand micro-cell corrosion of steel bars in cracked concrete made with various cements The use of beneficiated fly ash as a component of cement in concrete Development of lightweight concrete containing high volumes of fly ash, bottom ash, and waste fines from stone quarries The effects of blended cements on concrete porosity, chloride permeability, and resistivity Fast-track concrete construction using cement replacement materials Strength development of ternary blended cement with high-calcium fly ash and amorphous silica Use of fluidized bed combustion ash as raw feed in the manufacture of calcium sulfoaluminate cements Influence of different curing conditions on strength development of high-strength concrete using fly ash Concrete with fly ash and influence of alkalinity on strength, leaching and freezing and thawing of fly ash cement stabilisations The use of high-range water-reducers in concrete containing fly ash and ground, granulated blast-furnace slag The pore structure and autogenous shrinkage of high-performance concrete with ternary binders Evaluation of ASR resistance of fly ash-slag combinations using the modified ASTM C 1260 Test method Long-term performance of concrete incorporating ground granulated blast furnace slag Strength and corrosion protection of silica fume concrete containing fly ash or calcium nitrite inhibitor or both Reaction models for alkali-activated slags Evaluation of zeolite-bearing tuffs as pozzolanic addition for blended cements Efficiency of inert mineral admixtures in mortars 335 Activation of fly ashes: a general view Influence of quality of powder on rheology of high-fluidity concrete High calcium coal fly ash as raw material for synthesizing new low-energy cements
渗透自密实混凝土的可持续发展和耐久性各种水泥制成的开裂混凝土中钢筋的宏细胞和微细胞腐蚀将精选粉煤灰作为混凝土中水泥的组成部分开发含有大量粉煤灰、底灰和采石场废料细粒的轻质混凝土混合水泥对混凝土孔隙度、氯离子渗透性、高钙粉煤灰与无定形二氧化硅三元混合水泥的强度发展流化床燃烧灰作为原料生产硫铝酸钙水泥不同养护条件对粉煤灰高强混凝土强度发展的影响粉煤灰混凝土及碱度对强度的影响在含有粉煤灰和地面的混凝土中使用高范围减水剂;用改良的ASTM C 1260试验方法评价粉煤灰-矿渣组合物的抗ASR性能含磨碎的高炉矿渣混凝土的长期性能含粉煤灰或亚硝酸钙抑制剂或两者的硅灰混凝土的强度和防腐蚀性能碱活性渣的反应模型含沸石的评价粉煤灰的活化:概述粉体质量对高流动性混凝土流变学的影响高钙煤粉煤灰作为合成新型低能水泥的原料
{"title":"Macro- and Micro-Cell Corrosion of Steel Bars in Cracked Concrete made with Various Cements","authors":"T. Mohammed, H. Hamada, H. Yokota","doi":"10.14359/13246","DOIUrl":"https://doi.org/10.14359/13246","url":null,"abstract":"penetration Sustainable development and durability of self-compacting concretes Macroand micro-cell corrosion of steel bars in cracked concrete made with various cements The use of beneficiated fly ash as a component of cement in concrete Development of lightweight concrete containing high volumes of fly ash, bottom ash, and waste fines from stone quarries The effects of blended cements on concrete porosity, chloride permeability, and resistivity Fast-track concrete construction using cement replacement materials Strength development of ternary blended cement with high-calcium fly ash and amorphous silica Use of fluidized bed combustion ash as raw feed in the manufacture of calcium sulfoaluminate cements Influence of different curing conditions on strength development of high-strength concrete using fly ash Concrete with fly ash and influence of alkalinity on strength, leaching and freezing and thawing of fly ash cement stabilisations The use of high-range water-reducers in concrete containing fly ash and ground, granulated blast-furnace slag The pore structure and autogenous shrinkage of high-performance concrete with ternary binders Evaluation of ASR resistance of fly ash-slag combinations using the modified ASTM C 1260 Test method Long-term performance of concrete incorporating ground granulated blast furnace slag Strength and corrosion protection of silica fume concrete containing fly ash or calcium nitrite inhibitor or both Reaction models for alkali-activated slags Evaluation of zeolite-bearing tuffs as pozzolanic addition for blended cements Efficiency of inert mineral admixtures in mortars 335 Activation of fly ashes: a general view Influence of quality of powder on rheology of high-fluidity concrete High calcium coal fly ash as raw material for synthesizing new low-energy cements","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132362656","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":"The Use of Beneficiated Fly Ash as a Component of Cement in Concrete","authors":"J. Newman, P. Owens","doi":"10.14359/13247","DOIUrl":"https://doi.org/10.14359/13247","url":null,"abstract":"","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122246512","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":"Compressive Strength and Leachate Characteristics of New Green CLSM with Eco-Cement and Melted Slag from Municipal Solid Waste","authors":"I. Horiguchi, N. Saeki","doi":"10.14359/13276","DOIUrl":"https://doi.org/10.14359/13276","url":null,"abstract":"","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125925214","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":"The Role of Recycled Aggregates in Self-Compacting Concrete","authors":"V. Corinaldesi, G. Moriconi","doi":"10.14359/13300","DOIUrl":"https://doi.org/10.14359/13300","url":null,"abstract":"","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124220518","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}
Synopsis: The influence of some pozzolanic additions – such as silica fume, fly ash and ultra-fine amorphous colloidal silica (UFACS) – on the performance of superplasticized concrete was studied. Superplasticized mixtures in form of flowing (slump of 230 mm) or self-compacting concretes (slump flow of 735 mm) were manufactured all with a water-cement ratio as low as 0.44, in order to produce high-performance concretes (HPC). They were cured at room temperature (20°C) or steam-cured at 65°C in order to simulate the manufacturing of pre-cast members. Concretes with ternary combinations of silica fume (15-20 kg/m), fly ash (30-40 kg/m) and UFACS (5-8 kg/m) perform better – in terms of strength and durability – than those with fly ash alone (60 kg/m) and approximately as those with silica fume alone (60 kg/m). Due to the reduced availability of silica fume on the market, these ternary combinations can reduce by 60-70% the needed amount of silica fume for each pre-cast HPC element at a given performance level. Moreover, at later ages the strength reduction in steam-cured concretes with respect to the corresponding concretes cured at room temperature, is negligible or much lower in mixtures with the ternary combinations of pozzolanic additions.
{"title":"\"Optimization of Silica Fume, Fly Ash and Amorphous Nano-Silica in Superplasticized High-Performance Concrete\"","authors":"M. Collepardi, S. Collepardi, U. Skarp, R. Troli","doi":"10.14359/13273","DOIUrl":"https://doi.org/10.14359/13273","url":null,"abstract":"Synopsis: The influence of some pozzolanic additions – such as silica fume, fly ash and ultra-fine amorphous colloidal silica (UFACS) – on the performance of superplasticized concrete was studied. Superplasticized mixtures in form of flowing (slump of 230 mm) or self-compacting concretes (slump flow of 735 mm) were manufactured all with a water-cement ratio as low as 0.44, in order to produce high-performance concretes (HPC). They were cured at room temperature (20°C) or steam-cured at 65°C in order to simulate the manufacturing of pre-cast members. Concretes with ternary combinations of silica fume (15-20 kg/m), fly ash (30-40 kg/m) and UFACS (5-8 kg/m) perform better – in terms of strength and durability – than those with fly ash alone (60 kg/m) and approximately as those with silica fume alone (60 kg/m). Due to the reduced availability of silica fume on the market, these ternary combinations can reduce by 60-70% the needed amount of silica fume for each pre-cast HPC element at a given performance level. Moreover, at later ages the strength reduction in steam-cured concretes with respect to the corresponding concretes cured at room temperature, is negligible or much lower in mixtures with the ternary combinations of pozzolanic additions.","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127649517","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":"Evaluation of ASR Resistance of Fly Ash-Slag Combinations Using the Modified ASTM C 1260 Test Method","authors":"C-S Shon, D. Zollinger, S. Sarkar","doi":"10.14359/13257","DOIUrl":"https://doi.org/10.14359/13257","url":null,"abstract":"","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117141293","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":"Activation of Fly Ashes: A General View","authors":"A. Fernández-Jiménez, A. Palomo","doi":"10.14359/13263","DOIUrl":"https://doi.org/10.14359/13263","url":null,"abstract":"","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131493169","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":"Effect of Water and Steam Curing on Long-Term Performance of Concrete","authors":"V. Sirivivatnanon, S. Mak, N. Gowripalan","doi":"10.14359/13293","DOIUrl":"https://doi.org/10.14359/13293","url":null,"abstract":"","PeriodicalId":306727,"journal":{"name":"\"SP-221: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete\"","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131078540","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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