01663353

Component

In the present study, an effort has been made to characterize ferrochrome slag as a construction material, and controlled low-strength material CLSM is prepared using FS with cement and fly ash as binding material. The CLSM is an effective material having highly flowable and self-compacting characteristics which can fill voids without the necessity for compaction and provides significant benefits over the use of compacted fill in highway construction and other civil engineering applications. Different tests such as scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray fluorescence(XRF), optical microscope image, electrical conductivity, total dissolved solids(TDS), pH, zeta potential, Leachate, thermal conductivity are conducted to characterize ferrochrome slag as a construction material. The leachate analysis of the FS was also made for hexavalent chromium using an ultraviolet spectrophotometer. Then properties of CLSM made with a combination of cement, fly ash and ferrochrome slag are discussed in terms of its flowability, fresh density, bleeding, thermal conductivity, unconfined compressive strength (UCS), settlement analysis and California bearing ratio (CBR) values.

This paper was sponsored by TRB committee AFP40 Standing Committee on Geo-Environmental Processes.

18-06623

English

16p

2018

Transportation Research Board 97th Annual Meeting

Digital/other

Figures; Photos; References; Tables

Building materials; Civil engineering; Fills; Fly ash; Geotechnical engineering; Road construction; Slag; Strength of materials

Geotechnology; Highways; Materials

Transportation Research Board Annual Meeting 2018 Paper #18-06623

TRIS, TRB, ATRI

Jan 8 2018 11:42AM