{"title":"现场生产的压缩土块的力学特性:防水剂和其他添加剂的作用","authors":"Kenneth Mak, C. Macdougall, A. Fam","doi":"10.1080/2093761X.2015.1092001","DOIUrl":null,"url":null,"abstract":"AbstractThe compressed earth block (CEB) is a form of masonry unit comprised of mechanically compacted earth with a natural clay binder. CEBs typically experience a 50% reduction in compressive strength when saturated. As a result, CEBs are typically stabilised with Portland cement, hydrated lime, or metakaolin. More recently, a commercial silane/siloxane water-repellent admixture with the tradename Plasticure, specifically designed for earth construction, has become available. This paper is an experimental investigation of the influence of Plasticure on the dry and wet strengths of CEBs stabilised with Portland cement, hydrated lime, and metakaolin. Prisms were tested wet and dry with three repetitions each. In total, 106 specimens were tested. The wet specimens were soaked in water for 24 h before compressive testing. Typical CEBs without Plasticure absorbed water equal to 7 to 9% of their original weight. This resulted in reductions of compressive strengths from the dry condition by 40 to 50%. For CEBs...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2015.1092001","citationCount":"2","resultStr":"{\"title\":\"The mechanical characteristics of on-site manufactured compressed earth blocks: the effects of water repellent and other additives\",\"authors\":\"Kenneth Mak, C. Macdougall, A. Fam\",\"doi\":\"10.1080/2093761X.2015.1092001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"AbstractThe compressed earth block (CEB) is a form of masonry unit comprised of mechanically compacted earth with a natural clay binder. CEBs typically experience a 50% reduction in compressive strength when saturated. As a result, CEBs are typically stabilised with Portland cement, hydrated lime, or metakaolin. More recently, a commercial silane/siloxane water-repellent admixture with the tradename Plasticure, specifically designed for earth construction, has become available. This paper is an experimental investigation of the influence of Plasticure on the dry and wet strengths of CEBs stabilised with Portland cement, hydrated lime, and metakaolin. Prisms were tested wet and dry with three repetitions each. In total, 106 specimens were tested. The wet specimens were soaked in water for 24 h before compressive testing. Typical CEBs without Plasticure absorbed water equal to 7 to 9% of their original weight. This resulted in reductions of compressive strengths from the dry condition by 40 to 50%. For CEBs...\",\"PeriodicalId\":38108,\"journal\":{\"name\":\"International Journal of Sustainable Building Technology and Urban Development\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1080/2093761X.2015.1092001\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Sustainable Building Technology and Urban Development\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/2093761X.2015.1092001\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Sustainable Building Technology and Urban Development","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/2093761X.2015.1092001","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}
The mechanical characteristics of on-site manufactured compressed earth blocks: the effects of water repellent and other additives
AbstractThe compressed earth block (CEB) is a form of masonry unit comprised of mechanically compacted earth with a natural clay binder. CEBs typically experience a 50% reduction in compressive strength when saturated. As a result, CEBs are typically stabilised with Portland cement, hydrated lime, or metakaolin. More recently, a commercial silane/siloxane water-repellent admixture with the tradename Plasticure, specifically designed for earth construction, has become available. This paper is an experimental investigation of the influence of Plasticure on the dry and wet strengths of CEBs stabilised with Portland cement, hydrated lime, and metakaolin. Prisms were tested wet and dry with three repetitions each. In total, 106 specimens were tested. The wet specimens were soaked in water for 24 h before compressive testing. Typical CEBs without Plasticure absorbed water equal to 7 to 9% of their original weight. This resulted in reductions of compressive strengths from the dry condition by 40 to 50%. For CEBs...
期刊介绍:
The International Journal of Sustainable Building Technology and Urban Development is the official publication of the Sustainable Building Research Center and serves as a resource to professionals and academics within the architecture and sustainability community. The International Journal of Sustainable Building Technology and Urban Development aims to support its academic community by disseminating studies on sustainable building technology, focusing on issues related to sustainable approaches in the construction industry to reduce waste and mass consumption, integration of advanced architectural technologies and environmentalism, sustainable building maintenance, life cycle cost (LCC), social issues, education and public policies relating to urban development and architecture .