H. Fujiwara, R. Tomita, T. Okamoto, A. Dozono, A. Obatake
{"title":"高强多孔混凝土的性能研究","authors":"H. Fujiwara, R. Tomita, T. Okamoto, A. Dozono, A. Obatake","doi":"10.14359/6038","DOIUrl":null,"url":null,"abstract":"A new method of producing high-strength porous concrete has recently been developed in Japan. In this method, porous concrete is produced by coating the coarse aggregates with a high-strength mortar, then applying vibration to fuse them. Porous concrete produced by this method has the following properties. It has a continuous void system with a volume-to-total-void ratio exceeding 85% and a compressive strength of 20 MPa or greater when water permeability is 2 cm/sec. The porous concrete produced exhibited good durability in freezing and thawing tests (ASTM C666, Procedure B) and, while the amount of drying shrinkage is about 60%, or smaller than that of conventional concrete, such shrinkage occurred very rapidly.","PeriodicalId":255305,"journal":{"name":"SP-179: Fourth CANMET/ACI/JCI Conference: Advances in Concrete Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"15","resultStr":"{\"title\":\"Properties of High-Strength Porous Concrete\",\"authors\":\"H. Fujiwara, R. Tomita, T. Okamoto, A. Dozono, A. Obatake\",\"doi\":\"10.14359/6038\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new method of producing high-strength porous concrete has recently been developed in Japan. In this method, porous concrete is produced by coating the coarse aggregates with a high-strength mortar, then applying vibration to fuse them. Porous concrete produced by this method has the following properties. It has a continuous void system with a volume-to-total-void ratio exceeding 85% and a compressive strength of 20 MPa or greater when water permeability is 2 cm/sec. The porous concrete produced exhibited good durability in freezing and thawing tests (ASTM C666, Procedure B) and, while the amount of drying shrinkage is about 60%, or smaller than that of conventional concrete, such shrinkage occurred very rapidly.\",\"PeriodicalId\":255305,\"journal\":{\"name\":\"SP-179: Fourth CANMET/ACI/JCI Conference: Advances in Concrete Technology\",\"volume\":\"5 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"15\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"SP-179: Fourth CANMET/ACI/JCI Conference: Advances in Concrete Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.14359/6038\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"SP-179: Fourth CANMET/ACI/JCI Conference: Advances in Concrete Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14359/6038","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A new method of producing high-strength porous concrete has recently been developed in Japan. In this method, porous concrete is produced by coating the coarse aggregates with a high-strength mortar, then applying vibration to fuse them. Porous concrete produced by this method has the following properties. It has a continuous void system with a volume-to-total-void ratio exceeding 85% and a compressive strength of 20 MPa or greater when water permeability is 2 cm/sec. The porous concrete produced exhibited good durability in freezing and thawing tests (ASTM C666, Procedure B) and, while the amount of drying shrinkage is about 60%, or smaller than that of conventional concrete, such shrinkage occurred very rapidly.
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