High Strength Concrete Containing High Volume Ground Bagasse Ash Blended with Calcium Carbonate Powder

Journal article

Authors/Editors

Strategic Research Themes

Publication Details

Author list: Tawich Klathae;Trinh Nhat Ho Tran;Sambath Men;Weerachart Tangchirapat;Chai Jaturapitakkul

Publication year: 2023

Journal: วารสารวิจัย มหาวิทยาลัยเทคโนโลยีราชมงคลศรีวิชัย (1906-6627)

Volume number: 15

Issue number: 1

Start page: 105

End page: 120

Number of pages: 16

ISSN: 1906-6627

URL: https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/251669

Abstract

This research aimed to investigate the superplasticizer (SP) requirement, porosity, compressive strength and environmental impact of high strength concrete (HS-C) containing high volume ground bagasse ash (GB) at 65, 70, 75 and 80 wt% of binder blended with calcium carbonate powder (CC) at 15, 10, 5 and 0 wt% of binder while containing Portland cement type I (OPC) at 20 wt% of binder (65GB15CC, 70GB10CC, 75GB5CC and 80GB, respectively). The results indicated that the HS-C containing high volume GB required SP more than HS-C made with OPC 100 wt% of binder (CON). However, the use of CC could reduce SP requirement about 25-50 % as compared with 80GB concrete. With the rise in GB content, the porosity of HS-C increased. The compressive strengths at 28 days and the 80GB, 75GB5CC, 70GB10CC and 65GB15CC concretes had the compressive strengths of 56.8, 58.2, 65.2 and 55.5 MPa, respectively which were higher than 55 MPa and could be classified as HS-C. For environmental impacts, GB blended with CC concretes showed a reduction in carbon dioxide emission of 60-61% as compared with CON concrete. It is suggested that GB was a good pozzolanic material and incorporating of CC could replace OPC up to 80 wt% of binder for producing green HS-C.

Keywords

คอนกรีตกำลังสูง, แคลเซียมคาร์บอเนต, เถ้าชานอ้อยปริมาณสูง