Properties of Cementitious Grouts using Pozzolanic Materials

概要

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In cementitious grout as required for semi-rigid pavement, pozzolanic materials are used as supplementary cementitious materials to improve its properties. Pozzolanic material affects strength and other properties of grout such as flow, strength and density. This study is aimed at exploring the effects of silica fume and fly ash on the characteristics of cementitious grout through laboratory experiments. The cementitious grout used in this study is composed of ordinary Portland cement(OPC), Silica flume or Fly ash mixed with water and chemical admixture of superplasticizer. The prepared grouts are tested for the properties such as flow time, compressive strength and density. The effects of combined addition of SF and SP or fly ash and SP combinations on grout strength, flow and density are explored. It is found that flow times and strengths are significantly affected for addition or replacement of fly ash and silica fume in the OPC mix.
Eastern Asia Society for Transportation Studiesの論文