The combined benefits of CPF and RHA in improving the durability of concrete structures

• Type: Article in International Scientific Journal
• Date: 2003

Authors

Joana Coutinho (Author) FEUP

Journal

Title: Cement & Concrete Composites

Vol. 25 No. 1

Pages: 51-59

ISSN: 0958-9465

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 88 Citations

Scopus - 124 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-000-JA5

DOI: 10.1016/s0958-9465(01)00055-5

Abstract (EN): The work presented is a laboratory study of controlled permeability formwork (CPF) applied to concrete where cement was partially replaced (10%, 15% and 20%) with Portuguese rice husk ash (RHA). Portuguese rice husk is a by-product which may be incinerated industrially. Various tests were carried out to evaluate the durability of concrete made with RHA at 10%, 15% and 20% replacement of cement by weight and cast with both the usual formwork and CPF. Tests carried out so far, reported in this paper, concern strength, absorption by capillarity and chloride ion penetration. Results lead to the conclusion that CPF enhances concrete performance even further when using partial cement replacement by RHA.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9