{"title":"Lightweight Concrete Makes a Dam Float","authors":"C. L. Tasillo, B. Neeley, A. A. Bombich","doi":"10.14359/13057","DOIUrl":"https://doi.org/10.14359/13057","url":null,"abstract":"","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128303399","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":"Lightweight Concrete in the Marine Environment","authors":"P. Fidjestøl","doi":"10.14359/13053","DOIUrl":"https://doi.org/10.14359/13053","url":null,"abstract":"","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"11 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114046298","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":"Use of Magnetic Resonance Imaging to Study Internal Moist Curing in Concrete Containing Saturated Lightweight Aggregate","authors":"F. Barrita, T. Bremner, B. Balcom","doi":"10.14359/13061","DOIUrl":"https://doi.org/10.14359/13061","url":null,"abstract":"","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131150535","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 research project conducted at Georgia Tech tested six pretensioned AASHTO Type II girders that were constructed using expanded slate lightweight concrete with design strengths of 8,000 and 10,000 psi, with actual strengths ranging from 8,790 to 11,010 psi. Each girder was prestressed using 0.6-inch diameter low relaxation strands tensioned to 75% of strand ultimate stress. In order to determine development length characteristics, three-point bending tests were conducted on each beam. The distance from the beam end to the load point varied from between 70 and 100 percent of the AASHTO specified development length. Development lengths of 91 inches and 67 inches were obtained for the 8,000 and 10,000 psi concretes which were 95 percent and 70 percent of the design development lengths allowed in AASHTO 16th Edition.
{"title":"Transfer and Development Length of 0.6-inch Strand in High Strength Lightweight Concrete","authors":"K. F. Meyer, L. Kahn","doi":"10.14359/13051","DOIUrl":"https://doi.org/10.14359/13051","url":null,"abstract":"A research project conducted at Georgia Tech tested six pretensioned AASHTO Type II girders that were constructed using expanded slate lightweight concrete with design strengths of 8,000 and 10,000 psi, with actual strengths ranging from 8,790 to 11,010 psi. Each girder was prestressed using 0.6-inch diameter low relaxation strands tensioned to 75% of strand ultimate stress. In order to determine development length characteristics, three-point bending tests were conducted on each beam. The distance from the beam end to the load point varied from between 70 and 100 percent of the AASHTO specified development length. Development lengths of 91 inches and 67 inches were obtained for the 8,000 and 10,000 psi concretes which were 95 percent and 70 percent of the design development lengths allowed in AASHTO 16th Edition.","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121973045","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":"Internal Curing Role of Absorbed Water in Aggregates","authors":"T. A. Hammer, Bjontegaard, E. J. Sellevold","doi":"10.14359/13059","DOIUrl":"https://doi.org/10.14359/13059","url":null,"abstract":"","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122168656","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 testing program developed for the first bridge in Norway utilizing pumping for placement of lightweight concrete is presented in this paper. The results from parallel testing of both normal weight and lightweight concrete performed during the bridge construction are reported. A discussion of the economics of using high performance lightweight concrete on the Rugsund bridge is also presented. Also described is the Sundoy Bridge, the second bridge in Norway using the same technique. The results of these two projects clearly confirm that high strength lightweight concrete is both economical and efficient as construction material for long span bridges. While the cost of the lightweigh concrete may be more per cubic yard than normal weight concrete, the total cost of the structure may be less as a result of reduced dead weight and lower foundation costs.
{"title":"Norway Bridges Using High Performance Lightweight Aggregate Concrete","authors":"K. Harmon","doi":"10.14359/13063","DOIUrl":"https://doi.org/10.14359/13063","url":null,"abstract":"The testing program developed for the first bridge in Norway utilizing pumping for placement of lightweight concrete is presented in this paper. The results from parallel testing of both normal weight and lightweight concrete performed during the bridge construction are reported. A discussion of the economics of using high performance lightweight concrete on the Rugsund bridge is also presented. Also described is the Sundoy Bridge, the second bridge in Norway using the same technique. The results of these two projects clearly confirm that high strength lightweight concrete is both economical and efficient as construction material for long span bridges. While the cost of the lightweigh concrete may be more per cubic yard than normal weight concrete, the total cost of the structure may be less as a result of reduced dead weight and lower foundation costs.","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127812653","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":"Mitigating Autogenous Shrinkage by Internal Curing","authors":"M. Geiker, D. Bentz, O. Jensen","doi":"10.14359/13060","DOIUrl":"https://doi.org/10.14359/13060","url":null,"abstract":"","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121331070","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 paper describes an experimental program to demonstrate the feasibility of using lightweight high performance concrete (LWHPC) bridge beams and decks. These prestressed beams had a minimum 28-day compressive strength of 8,000 psi and the deck concrete had 4,000 psi. The beams had maximum permeability of 1500 coulombs, and the deck concrete had 2500 coulombs. The beams were required for an LWHPC demostration bridge being built in Charles City County-New Kent County border line in Virginia.
{"title":"First Use of Lightweight High-Performance Concrete Beams in Virginia","authors":"C. Ozyildirim, T. Cousins, J. Gómez","doi":"10.14359/13050","DOIUrl":"https://doi.org/10.14359/13050","url":null,"abstract":"The paper describes an experimental program to demonstrate the feasibility of using lightweight high performance concrete (LWHPC) bridge beams and decks. These prestressed beams had a minimum 28-day compressive strength of 8,000 psi and the deck concrete had 4,000 psi. The beams had maximum permeability of 1500 coulombs, and the deck concrete had 2500 coulombs. The beams were required for an LWHPC demostration bridge being built in Charles City County-New Kent County border line in Virginia.","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127219903","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":"Composite Bridge Systems with High-Performance Lightweight Concrete","authors":"G. Sylva, N. Burns, J. Breen","doi":"10.14359/13056","DOIUrl":"https://doi.org/10.14359/13056","url":null,"abstract":"","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121689359","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":"Development of Very Low Density Structural Lightweight Concrete","authors":"M. A. Caldarone, R. Burg","doi":"10.14359/13062","DOIUrl":"https://doi.org/10.14359/13062","url":null,"abstract":"","PeriodicalId":338204,"journal":{"name":"SP-218: High Performance Structural Lightweight Concrete","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125903136","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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