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Content archived on 2024-04-15

FIBRE REINFORCED COMPOSITE WITH MODIFIED CEMENTITIOUS MATRIX

Objective


This project, aimed at the construction industry, created a new glass fibre-reinforced composite. It has a modified matrix, which includes an acrylic polymer, which helps it resist water absorption. The use of Portland cement with good metakaolinite performs better than traditional glass fibre-reinforced cement after curing and aging tests (including hot water, wet-drying cycling, freeze-thaw, and carbonation).
THE DEVELOPMENT OF NEW GLASS FIBRE-REINFORCED COMPOSITES, BASED ON MODIFIED CEMENTITIOUS MATRICES, WHICH WILL PRESERVE THEIR HIGH MECHANICAL PROPERTIES OVER A LONG PERIOD OF TIME, COULD HAVE A VERY SIGNIFICANT IMPACT ON THE CONSTRUCTION MARKET.

THE AIM OF THIS PROJECT IS THE DEVELOPMENT OF A PRACTICAL COMPOSITE WHICH HAVE A FLEXURAL STRENGTH OF 35 MPA TO 45 MPA AFTER AGEING AND AN ULTIMATE STRAIN OF AT LEAST 1%.

WITH AGE, GLASS FIBRE-REINFORCED CEMENTS (EG GRC, PGRC) CURRENTLY AVAILABLE DEMONSTRATE A SIGNIFICANT REDUCTION IN FLEXURAL STRENGTH AND BECOME BRITTLE. THIS GREATLY RESTRICTS POTENTIAL PRACTICAL APPLICATIONS.

THE PERFORMANCE OF FIBRE-REINFORCED COMPOSITES COULD BE IMPROVED IF THE MATRIX IS MODIFIED BY THE ADDITION OF ACTIVE MINERAL FILLERS WITH OR WITHOUT POLYMERS.

MINERAL FILLERS MAY BE ABLE TO ELIMINATE THE PROBLEM OF CORROSION OF GLASS REINFORCEMENT AND TO CONTROL THE BOND BETWEEN FIBRES AND THE MATRIX. HIGH EARLY PROPERTIES CAN BE ACHIEVED AND MAINTAINED.

THE DEVELOPMENT PROPOSED WILL INVESTIGATE ALL CHARACTERISTICS OF THESE NEW ADVANCED COMPOSITES. THE MECHANISM OF THE REINFORCEMENT OF BRITTLE MATRICES IN GENERAL, AND OF HARDENED CEMENTS IN PARTICULAR, WILL BE EXAMINED.
THE APPLICATIONS OF THIS RESEARCH AND DEVELOPMENT WILL EXTEND TO OTHER COMPOSITE MATERIALS SUCH AS FIBRE-REINFORCED CONCRETES IN CONSTRUCTION.

Topic(s)

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Call for proposal

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Coordinator

Centre National de Recherches de Pont-à-Mousson
EU contribution
No data
Address

54700 Pont-à-Mousson
France

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Total cost
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Participants (6)