Title: Microstructure Characteristics of Fly Ash Concrete with Rice Husk Ash and Lime Stone Powder

Author(s): Sang-Hwa Jung, Velu Saraswathy, Subbiah Karthick, Palanivel Kathirvel, and Seung-Jun Kwon

Publication: IJCSM

Volume: 12

Issue:

Appears on pages(s):

Keywords: portland pozzolana cement, fly ash, rice husk ash, limestone powder, microstructure.

DOI: 10.1186/s40069-018-0257-4

Date: 2/28/2018

Abstract:
Industrial wastes and recycled materials are being utilized in the construction industry for preserving the environment, saving of materials, and enhancing durability of the construction material. Blending of cement with supplementary cementitious materials like fly ash, rice husk ash, and silica fume makes concrete more durable. The main objective of this study is to make use of the rice husk ash and lime powder (LP) as a replacement of Portland pozzolana cement considering various replacement levels. The engineering and durability performance in concrete with LP were performed through compressive strength and void measurement. The microstructure in the concrete with LP was characterized through XRD, SEM/EDS, and TG/DTA. Optimum replacement ratio for rice husk ash and LP were obtained through pozzolanic reaction based CSH formation.