{"title":"Flexural behaviour of reinforced and prestressed solite structural lightweight concrete beams","authors":"R.N. Swamy , A.B. Ibrahim","doi":"10.1016/0007-3628(75)90007-9","DOIUrl":null,"url":null,"abstract":"<div><p>The structural behaviour of reinforced and prestressed concrete beams made of expanded slate lightweight aggregate (Solite) concrete is discussed in relation to strength, cracking and deformation characteristics. The beams were designed to have permissible concrete stresses of <em>15·0–26·0</em> N/mm<sup>2</sup>, and the cube strength of the concrete was <em>35–40</em> N/mm<sup>2</sup> in one day and about <em>50</em> N/mm<sup>2</sup> at <em>28</em> days. The deflection, cracking and the strength characteristics of the beams have been studied throughout their flexural loading range, and their mode of failure. It is shown that Solite lightweight concrete beams possess adequate ductility and load factor, and satisfy all the serviceability requirements of current Codes of Practice.</p></div>","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"10 1","pages":"Pages 43-56"},"PeriodicalIF":0.0000,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(75)90007-9","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Building Science","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0007362875900079","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
Abstract
The structural behaviour of reinforced and prestressed concrete beams made of expanded slate lightweight aggregate (Solite) concrete is discussed in relation to strength, cracking and deformation characteristics. The beams were designed to have permissible concrete stresses of 15·0–26·0 N/mm2, and the cube strength of the concrete was 35–40 N/mm2 in one day and about 50 N/mm2 at 28 days. The deflection, cracking and the strength characteristics of the beams have been studied throughout their flexural loading range, and their mode of failure. It is shown that Solite lightweight concrete beams possess adequate ductility and load factor, and satisfy all the serviceability requirements of current Codes of Practice.
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