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"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991"最新文献

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Long-Term Corrosion Resistance of Steel in Silica Fume and/or Fly Ash Containing Concretes 钢在含硅灰和/或粉煤灰混凝土中的长期耐腐蚀性
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2229
N. Berke, M. Scali, J. Regan, D. F. Shen
{"title":"Long-Term Corrosion Resistance of Steel in Silica Fume and/or Fly Ash Containing Concretes","authors":"N. Berke, M. Scali, J. Regan, D. F. Shen","doi":"10.14359/2229","DOIUrl":"https://doi.org/10.14359/2229","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128432985","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}
引用次数: 11
Freezing and Thawing Durability of Roller-Compacted Concrete 碾压混凝土的冻融耐久性
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2049
T. Dolen
{"title":"Freezing and Thawing Durability of Roller-Compacted Concrete","authors":"T. Dolen","doi":"10.14359/2049","DOIUrl":"https://doi.org/10.14359/2049","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127034668","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}
引用次数: 7
Some Aspects of Durability of High-Volume ASTM Class F (low-calcium) Fly Ash Concrete 高容量ASTM F级(低钙)粉煤灰混凝土耐久性的若干方面
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2026
V. Malhotra, G. Carette, A. Bilodeau, Sivasundaram
{"title":"Some Aspects of Durability of High-Volume ASTM Class F (low-calcium) Fly Ash Concrete","authors":"V. Malhotra, G. Carette, A. Bilodeau, Sivasundaram","doi":"10.14359/2026","DOIUrl":"https://doi.org/10.14359/2026","url":null,"abstract":"Low-calcium fly ash, ASTM Class F, is being increasingly incorporated into portaldn cement concrete as a partial replacement for cement. The replacements commonly used are 15 to 25 percent by weight of cement. This paper presents data on several aspects of durability of this new type of concrete. The aspects discussed include freezing and thawing cycling, resistance to chloride ion diffusion, deicing salt scaling resistance, carbonation, and volume stability. Data on the role of high volumes of fly ash to control alkali-silica reaction in concrete are also presented. It is concluded that, in general, high-volume fly ash concrete has excellent durability characteristics. The only exception is the deicing salt scaling tests, in which the above concrete performs poorly.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131414822","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}
引用次数: 14
Evaluation of Fly Ash for Controlling Alkali-Aggregate Reaction 粉煤灰控制碱-骨料反应的评价
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2461
S. Nagataki, H. Ohga, T. Inoue
{"title":"Evaluation of Fly Ash for Controlling Alkali-Aggregate Reaction","authors":"S. Nagataki, H. Ohga, T. Inoue","doi":"10.14359/2461","DOIUrl":"https://doi.org/10.14359/2461","url":null,"abstract":"Mortar using Pyrex as an aggregate were made using water-binder ratio of 50 percent, replacement ratio of fly ash from 0 to 30 percent by weight and an alkali content of 1.2 percent per weight of cement. Eight fly ashes were used as supplementary cementing materials. These mortars were cured at a temperature of 40 degrees Centigrade and a relative humidity more than 95 percent, and the expansion of these mortars was measured. The concentration of soluble alkali ion in fly ash immersed in the solution containing sodium hydroxide and calcium hydroxide was also determined. By studying effects of physical properties, chemical and amorphous silicon dioxide in fly ash, a method to evaluate the expansion of mortar containing fly ash was proposed based on amorphous silicon dioxide, the replacement ratio and particle diameter of fly ash.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"83 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133071499","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}
引用次数: 8
Use of Air Entrainment to Ensure the Frost Resistance of Roller-Compacted Concrete Pavements 利用空气夹带确保碾压混凝土路面的抗冻性
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2062
S. Ragan
{"title":"Use of Air Entrainment to Ensure the Frost Resistance of Roller-Compacted Concrete Pavements","authors":"S. Ragan","doi":"10.14359/2062","DOIUrl":"https://doi.org/10.14359/2062","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121491985","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}
引用次数: 3
Quality Inspection of Shore Approach High-Strength Concrete 岸线高强混凝土质量检验
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2343
M. Maage, S. Helland
{"title":"Quality Inspection of Shore Approach High-Strength Concrete","authors":"M. Maage, S. Helland","doi":"10.14359/2343","DOIUrl":"https://doi.org/10.14359/2343","url":null,"abstract":"A part of the Statpipe Development Project is a landfall for two gas pipelines on the exposed western coast of Norway. The pipelines are placed inside a submerged concrete tunnel which acts as an underwater protecting bridge over the rocky sea bed. The 590 m long tunnel was cast in five separte elements produced in two dry docks. The tunnel starts at a water depth of 30 m and ends up at water level. After seven years in service, cores were drilled from the splash zone element. The testing of the cores included compressive strength, capillary absorption, chloride profile, thin section analyses, X-ray diffraction, scanning electron microscopy and element analysis. The results indicate that in such a low porous concrete, the reaction products between sea water and cement paste will fill up the original low porosity and tighten the concrete so that the ingress of chlorides will cease.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123478830","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}
引用次数: 2
Deicer Salt Scaling Resistance ofRoller-Compacted Concrete Pavements 碾压混凝土路面的除冰盐抗结垢性
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2074
J. Marchand, J. Boisvert, M. Pigeon, H. Isabelle
{"title":"Deicer Salt Scaling Resistance ofRoller-Compacted Concrete Pavements","authors":"J. Marchand, J. Boisvert, M. Pigeon, H. Isabelle","doi":"10.14359/2074","DOIUrl":"https://doi.org/10.14359/2074","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124847268","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}
引用次数: 5
Silica Fume Concrete: A Solution to Steel Reinforcement Corrosion in Concrete 硅粉混凝土:解决混凝土中钢筋腐蚀的一种方法
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2310
J. Wolsiefer
{"title":"Silica Fume Concrete: A Solution to Steel Reinforcement Corrosion in Concrete","authors":"J. Wolsiefer","doi":"10.14359/2310","DOIUrl":"https://doi.org/10.14359/2310","url":null,"abstract":"This paper discusses the utilization of silica fume concrete admixture to prevent reinforcing steel corrosion. The mechanism of steel corrosion in salt impregnated concrete is described, along with laboratory test data showing how ordinary concrete's corrosion prone characteristics are altered by the use of silica fume. The test members were subjected to environments simulating salt water and deicing agents, for 370 days. Test results show that silica fume admixture prevents salt induced corrosion of steel rebar and tensioning strands.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125248486","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}
引用次数: 22
Corrosion of Reinforcing Steel in Concrete Exposed to Sea Air 暴露在海上空气中的混凝土中的钢筋腐蚀
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2266
T. Ohta
{"title":"Corrosion of Reinforcing Steel in Concrete Exposed to Sea Air","authors":"T. Ohta","doi":"10.14359/2266","DOIUrl":"https://doi.org/10.14359/2266","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129346013","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}
引用次数: 14
Crack Patterns and Measurement Technique in Reinforced Concrete 钢筋混凝土裂缝形态及测量技术
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/3818
C. Hwang, R. Lin, J. C. Chen, J. Kuo
{"title":"Crack Patterns and Measurement Technique in Reinforced Concrete","authors":"C. Hwang, R. Lin, J. C. Chen, J. Kuo","doi":"10.14359/3818","DOIUrl":"https://doi.org/10.14359/3818","url":null,"abstract":"The phenomenon of steel corrosion and concrete crack patterns under different water to cement ratios and cover depths of concrete was investigated. The steel corrosion of single reinforced concrete beam with different admixtures under repeated loading was also studied. It is possible to predict the crack patterns and mechanical behavior of concrete when steel corrosion is induced. The addition of inhibitors was able to reduce the corrosion rate. If concrete undergoes repeated loadings, the resulting crack will allow harmful elements in todal zone to penetrate into the concrete. This will accelerate the corrosion rate, especially at high loading conditions.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133281524","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}
引用次数: 1
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