Blended fibers in an engineered cementitious composite

US10538457B2 · kind B2 · utility

Assignee

• James Hardie Technology Limited · IE

Inventors

• Jeffrey Charles Chastain · Fontana, US
• Yongjun Chen · Rancho Cucamonga, US
• Mark Fisher · Fontana, US
• Caidian Luo · Goleta, US
• Huaijun Wang · Fontana, US

Key dates

• Filing date: Jul 7, 2016
• Grant date: Jan 21, 2020
• Expiry date: Sep 30, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed herein are fiber reinforced cement composite materials incorporating a fiber blend that includes cellulose pulp and synthetic fibers in a ratio selected to provide the composite material with improved water absorption characteristics and the same or improved mechanical properties as compared to equivalent composite materials reinforced with predominantly or all cellulose fibers. Also disclosed herein are fiber blends comprised of a combination of cellulose fibers and polypropylene fibers adapted to reinforce cementitious composite articles manufactured by the Hatschek process and autoclave cured.