Development of a silica sol reinforced monetite cement matrix

Abstract

The objective of this work is to develop silica sol reinforced monetite cement matrix and study the related reinforcement kinetics. Preparation of monetite cement powder was done using a microwave processing method with active Ca²⁺ present on particles surface as effective silica bonding sites. The incorporated silica sol significantly improved the compressive strength of the final matrix. It was noted surface areas of silica particles in solution together with the solution concentration were the main factors influencing reinforcement level. In vitro bioactivity and biodegradation indicated silica sol can be a beneficial additive to bone cement.

Keywords:

• Calcium phosphate
• Silica
• Cements
• Reinforcement