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

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Durability Properties of Overlays for Erosion-Damaged Concrete 侵蚀损伤混凝土覆盖层耐久性研究
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2169
J. Mirza
{"title":"Durability Properties of Overlays for Erosion-Damaged Concrete","authors":"J. Mirza","doi":"10.14359/2169","DOIUrl":"https://doi.org/10.14359/2169","url":null,"abstract":"Erosion by abrasion, cavitation and/or chemical attack in concrete hydraulic structures deteriorates spillways, stilling basins, chutes, slabs and transverse joints, concrete blocks under water gates and any irregular surface subjected to high water flow rate. Countless overlays are commercially available for repairing deteriorated surfaces. However, the essential data provided by manufacturers is very limited and, even if it is available, it is normally limited to room temperature values. This persuaded Canadian Electrical Association to financially support a comprehensive study on commercial overlays, especially from the viewpoint of resistance against erosion and the severe climatic conditions observed in northern parts of Canada. This paper presents laboratory test data on the erosion resistance and durability properties of various types of commercial overlays such as comentitious grouts, polymer-modified cement-based mortars and epoxy mortars.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"120 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":"127156700","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
Influence of Chloride Corrosion on the Durability of Reinforcement 氯化物腐蚀对钢筋耐久性的影响
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2298
J. Deja, J. Malolepszy, G. J. G. Jaskiewicz
{"title":"Influence of Chloride Corrosion on the Durability of Reinforcement","authors":"J. Deja, J. Malolepszy, G. J. G. Jaskiewicz","doi":"10.14359/2298","DOIUrl":"https://doi.org/10.14359/2298","url":null,"abstract":"This paper deals with the problem of reinforcing steel corrosion in the alkali activated slag mortar exposed to the attack of concentrated chloride solution. The observations of reinforcement in OPC mortars, OPC + SF mortar or OPC + limestone flour mortar were carried out simultaneously.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"35 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":"126627167","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: 6
Durability of Concrete to Marine Environment 混凝土在海洋环境中的耐久性
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2332
J. Beslack
{"title":"Durability of Concrete to Marine Environment","authors":"J. Beslack","doi":"10.14359/2332","DOIUrl":"https://doi.org/10.14359/2332","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"36 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":"127631359","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
Freezing and Thawing Resistance of Non Air-Entrained and Air-Entrained Concretes Containing a High Percentage of Condensed Silica Fume 含高浓度浓缩硅粉的非掺气和掺气混凝土的抗冻融性能
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2149
D. Galeota, M. M. Giammatteo, R. Marino, V. Volta
{"title":"Freezing and Thawing Resistance of Non Air-Entrained and Air-Entrained Concretes Containing a High Percentage of Condensed Silica Fume","authors":"D. Galeota, M. M. Giammatteo, R. Marino, V. Volta","doi":"10.14359/2149","DOIUrl":"https://doi.org/10.14359/2149","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"48 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":"132726155","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
Comparative Studies of Galvanized and Epoxy-Coated Steel Reinforcement in Concrete 混凝土中镀锌钢筋与环氧涂层钢筋的比较研究
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2214
S. Yeomans
{"title":"Comparative Studies of Galvanized and Epoxy-Coated Steel Reinforcement in Concrete","authors":"S. Yeomans","doi":"10.14359/2214","DOIUrl":"https://doi.org/10.14359/2214","url":null,"abstract":"This study describes comparisons of the corrosion performance and pullout strength of black, hot dip galvanized and fusion bonded epoxy coated steel reinforcement in concrete. Accelerated exposure testing confirmed that zinc coating was able to considerably delay the onset of corrosion and epoxy coating effectively eliminated corrosion provided the coating was not damaged. Where coated reinforcement was left with cut ends unrepaired, the epoxy coated bars showed early corrosion of the exposed steel with corrosion progressing along the bar under the coating. Even where cut ends were repaired, the epoxy coated bars showed many sites of breakdown of the repair and corrosion of the underlying steel. For plain reinforcement, the ultimate bond strength of epoxy coated bars is some 17 percent less than that for black steel bars, while that for galvanized bars is some 31 percent greater than for black steel. The ultimate bond strength of deformed bars is up to 50 percent higher than that of plain bars. The passivation of galvanized plain bars by chromate additions to the concrete mix water in the range 15-150 ppm could not be shown to significantly improve the bond strength.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"30 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":"133310511","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: 17
The Moisture Condition of Field Concrete Exhibiting Alkali-Silica Reactivity 具有碱-硅反应性的现场混凝土的水分条件
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2467
D. Stark
{"title":"The Moisture Condition of Field Concrete Exhibiting Alkali-Silica Reactivity","authors":"D. Stark","doi":"10.14359/2467","DOIUrl":"https://doi.org/10.14359/2467","url":null,"abstract":"The moisture condition of field concretes exhibiting evidence of alkali-silica reactivity was investigated utilizing relative humidity (RH) measurements. Prior determinations were made on laboratory mortar specimens to determine the threshold level required to sustain expansive reactivity. Results indicated that RH values greater than 80 percent, referenced to 21 degrees to 24 degrees Centigrade, are required to support expansive alkali-silica reactivity. Field measurements revealed that most of the concrete in highways and dams in desert areas are sufficiently damp to sustain expansive ASR.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"35 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":"125164781","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: 58
Cyclic Heating and Cooling Effects on Concrete Durability 循环加热和冷却对混凝土耐久性的影响
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/3747
Ramakrishnan, H. F. Shafai, G. Wu
{"title":"Cyclic Heating and Cooling Effects on Concrete Durability","authors":"Ramakrishnan, H. F. Shafai, G. Wu","doi":"10.14359/3747","DOIUrl":"https://doi.org/10.14359/3747","url":null,"abstract":"The main objective of this investigation was to determine effects of cyclic heating on the strength of portland cement concrete subjected to high temperature, and to compare the effects of cyclic heating on concrete contaminated with hydraulic fluid and jet fuel with non-contaminated concrete. Five different concrete mixtures were investigated. Twenty one prisms and twenty-one cylinders were made from each mixture and were tested for compressive strength, flexural strength, pulse velocity and dry unit weight. Within each group, three specimens were tested after each of the following heating/cooling cycles: 0, 15, 30, 60, 120, 240, and 400. Each cycle consisted of 60 minutes at 400 degrees F followed by 30 minutes at room temperature. After every 15 heating/cooling cycles, the contaminated specimens were soaked in jet fuel or hydraulic fluid for overnight before the next heating/cooling cycles. Test results indicate that jet fuel contamination is more detrimental than hydraulic fluid contamination. Compressive strength, flexural strength, and pulse velocity are adversely affected by the cyclic heating.","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"9 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":"133866097","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: 0
Performance of Concrete Structures in Industrial Environment 工业环境下混凝土结构性能研究
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/3775
A. Mullick, C. Rajikumar, N. Jain
{"title":"Performance of Concrete Structures in Industrial Environment","authors":"A. Mullick, C. Rajikumar, N. Jain","doi":"10.14359/3775","DOIUrl":"https://doi.org/10.14359/3775","url":null,"abstract":"","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":"122469702","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: 0
Influence of CuringTime on Behaviour in Seawater of High-Strength Mortar With Silica fume 固化时间对硅灰高强砂浆在海水中性能的影响
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2321
A. Paillère, G. Platret, P. Roussel, J. Gawsewitch
{"title":"Influence of CuringTime on Behaviour in Seawater of High-Strength Mortar With Silica fume","authors":"A. Paillère, G. Platret, P. Roussel, J. Gawsewitch","doi":"10.14359/2321","DOIUrl":"https://doi.org/10.14359/2321","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"13 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":"121928700","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: 0
Freeze Thaw Durability of Steel and Polypropylene Reinforced Shotcretes: A Review 钢和聚丙烯增强喷射混凝土的冻融耐久性研究进展
"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI: 10.14359/2429
D. R. Morgna
{"title":"Freeze Thaw Durability of Steel and Polypropylene Reinforced Shotcretes: A Review","authors":"D. R. Morgna","doi":"10.14359/2429","DOIUrl":"https://doi.org/10.14359/2429","url":null,"abstract":"","PeriodicalId":274481,"journal":{"name":"\"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991\"","volume":"1 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":"122100537","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
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