Internal Curing of Ultra High Performance Concrete by Using Rice Husk Ash

Title: Internal Curing of Ultra High Performance Concrete by Using Rice Husk Ash
Author(s): Nguyen Van Tuan, Guang Ye, Klaas van Breugel
Paper category : conference
Book title: International RILEM Conference on Material Science
Editor(s): W. Brameshuber
Print-ISBN: 978-2-35158-110-0
e-ISBN: 978-2-35158-111-7
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 265 - 274
Total Pages: 10
Nb references: 28
Language: English

Abstract: Rice Husk Ash (RHA) is a treated agriculture waste with a porous structure. This may give the benefit of internal curing for concrete with low water to cement ratio. The objective of this paper is to study internal curing of Ultra High Performance Concrete (UHPC) provided by the addition of RHA. The result was compared to UHPC sample made with Silica Fume (SF). The experimental studies on microstructure, thermogravimetric analysis, autogenous shrinkage and the development of compressive strength were performed.
The results show that, compared to the SF sample, the addition of RHA attributes the increased hydration, the absence of large empty pores (hollow shell or partly hollow shell pores), the less pozzolanic reaction, the mitigation of autogenous shrinkage and the enhancement of later age compressive strength of UHPC. This is suggested to be provided by internal curing of RHA in UHPC.

Online publication: 2010-12-02
Publication type : full_text
Public price (Euros): 0.00