REINFORCING MATERIAL FOR IMPROVING PERFORMANCE OF CONCRETE AND THE METHOD THEREOF

摘要

Provided is a method for preparing a material for reinforcing durability of a concrete structure which can be penetrated into the concrete structure deeply and rapidly by coating it on the surface of concrete, so as to fill the pore by sol-gell process. The method comprises the steps of injecting 50-95 wt% of an alkoxy silicate and 5-50 wt% of a mixture of a hydroxyalkyl acrylate monomer and an alkyl acrylate monomer into a reactor; adding a reaction initiator such as 2,2'-azo-bis-isobutyronitrile (AIBN), amidobenzonitrile (AMBN), etc.; stirring the reaction mixture with a velocity of 30-100 rpm with flowing a nitrogen gas into the reactor; and reacting the reaction mixture at 60-100 deg.C for 5-10 hours.