United States Department of Transportation
i
Use of Rice Husk Ash (RHA) in Flowable Fill Concrete Mix Material [Supporting Dataset]
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2019-08-01
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Abstract:In the way of finding sustainable development, the flowable fill is a relatively new construction technology. Flowable fill is a self-compacting material, which has been developed in recent years. Flowable fill has been used for different applications such as backfilling walls, sewer trenches, bridge abutments, conduit trenches, pile excavations, and retaining walls. This study examines the potential uses of Rice Husk Ash (RHA) as a sustainable cementitious material (SCM) in the preparation of flowable fill concrete. (RHA is an agricultural by-product of the rice milling process. This study has evaluated the usage of RHA in producing low strength and self-consolidating flowable fill concrete (FFC). Two different RHA samples (600 μm and 150 μm) in two different percentages (40%, and 60%, by the weight) of an Ordinary Portland Cement (OPC) have been used to prepare flowable fill mixtures. The evaluation processes of these FFC mixtures include determination of strength, flowability, unit weight, and air content in the laboratory. Test results showed that the FFC mixtures made with coarse RHA particles resulted in lower strength property compared to the regular FFC. On the other hand, the medium fine RHA particle was found to be effective in increasing the strength properties. Furthermore, a field demonstration has been conducted in this study to evaluate the workability, placement, and in-service performance of RHA modified FFC. Findings of this study will help the transportation and construction agencies in using RHA as a cost-effective construction material. The total size of the described zip file is 291 KB. Docx files are document files created in Microsoft Word. These files can be opened using Microsoft Word or with an open source text viewer such as Apache OpenOffice. Files with the .xlsx extension are Microsoft Excel spreadsheet files. These can be opened in Excel or open-source spreadsheet programs.
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Content Notes:National Transportation Library (NTL) Curation Note: As this dataset is preserved in a repository outside U.S. DOT control, as allowed by the U.S. DOT's Public Access Plan (https://doi.org/10.21949/1503647) Section 7.4.2 Data, the NTL staff has performed NO additional curation actions on this dataset. The current level of dataset documentation is the responsibility of the dataset creator. NTL staff last accessed this dataset at its repository URL on 2022-11-11. If, in the future, you have trouble accessing this dataset at the host repository, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time.
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