Pokpong Rattanachu, I. Karntong, Weerachart Tangchirapat, C. Jaturapitakkul, Prynia Chindaprasirt
{"title":"蔗渣灰和再生混凝土骨料对高强混凝土硬化性能的影响","authors":"Pokpong Rattanachu, I. Karntong, Weerachart Tangchirapat, C. Jaturapitakkul, Prynia Chindaprasirt","doi":"10.3989/MC.2018.04717","DOIUrl":null,"url":null,"abstract":"This research aimed to use of bagasse ash as a cement replacement in high-strength recycled aggregate concrete (HS-RAC). Crushed limestone was replaced with 100% recycled concrete aggregate (RCA) and the ground bagasse ash (GBA) was used to partially replace ordinary Portland cement (OPC) at 20, 35 and 50%wt of binder to cast HS-RAC. The results indicated that the replacing of crushed limestone with RCA had a negative impact on the properties of the concrete. Increasing the amount of GBA in HS-RAC resulted in a decrease in density and an increase in the volume of permeable pore space. The concrete mixtures prepared with 20%wt GBA replacement of OPC promoted greater the compressive strength than the conventional concrete (CT concrete) at 90 days or more. HS-RAC with GBA (up to 50%) was more durable in terms of chloride ion penetration resistance, although it had lower compressive strength than the CT concrete.","PeriodicalId":51113,"journal":{"name":"Materiales de Construccion","volume":"68 1","pages":"158"},"PeriodicalIF":1.1000,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"13","resultStr":"{\"title\":\"Influence of bagasse ash and recycled concrete aggregate on hardened properties of high-strength concrete\",\"authors\":\"Pokpong Rattanachu, I. Karntong, Weerachart Tangchirapat, C. Jaturapitakkul, Prynia Chindaprasirt\",\"doi\":\"10.3989/MC.2018.04717\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This research aimed to use of bagasse ash as a cement replacement in high-strength recycled aggregate concrete (HS-RAC). Crushed limestone was replaced with 100% recycled concrete aggregate (RCA) and the ground bagasse ash (GBA) was used to partially replace ordinary Portland cement (OPC) at 20, 35 and 50%wt of binder to cast HS-RAC. The results indicated that the replacing of crushed limestone with RCA had a negative impact on the properties of the concrete. Increasing the amount of GBA in HS-RAC resulted in a decrease in density and an increase in the volume of permeable pore space. The concrete mixtures prepared with 20%wt GBA replacement of OPC promoted greater the compressive strength than the conventional concrete (CT concrete) at 90 days or more. HS-RAC with GBA (up to 50%) was more durable in terms of chloride ion penetration resistance, although it had lower compressive strength than the CT concrete.\",\"PeriodicalId\":51113,\"journal\":{\"name\":\"Materiales de Construccion\",\"volume\":\"68 1\",\"pages\":\"158\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2018-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"13\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materiales de Construccion\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.3989/MC.2018.04717\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materiales de Construccion","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.3989/MC.2018.04717","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
Influence of bagasse ash and recycled concrete aggregate on hardened properties of high-strength concrete
This research aimed to use of bagasse ash as a cement replacement in high-strength recycled aggregate concrete (HS-RAC). Crushed limestone was replaced with 100% recycled concrete aggregate (RCA) and the ground bagasse ash (GBA) was used to partially replace ordinary Portland cement (OPC) at 20, 35 and 50%wt of binder to cast HS-RAC. The results indicated that the replacing of crushed limestone with RCA had a negative impact on the properties of the concrete. Increasing the amount of GBA in HS-RAC resulted in a decrease in density and an increase in the volume of permeable pore space. The concrete mixtures prepared with 20%wt GBA replacement of OPC promoted greater the compressive strength than the conventional concrete (CT concrete) at 90 days or more. HS-RAC with GBA (up to 50%) was more durable in terms of chloride ion penetration resistance, although it had lower compressive strength than the CT concrete.
期刊介绍:
Materiales de Construcción is a quarterly, scientific Journal published in English, intended for researchers, plant technicians and other professionals engaged in the area of Construction, Materials Science and Technology. Scientific articles focus mainly on:
- Physics and chemistry of the formation of cement and other binders.
- Cement and concrete. Components (aggregate, admixtures, additions and similar). Behaviour and properties.
- Durability and corrosion of other construction materials.
- Restoration and conservation of the materials in heritage monuments.
- Weathering and the deterioration of construction materials.
- Use of industrial waste and by-products in construction.
- Manufacture and properties of other construction materials, such as: gypsum/plaster, lime%2