Polymer-impregnated cementitious materials

E. Tazawa and S. Kobayashi Properties and applications of polymer impregnated cementitious materials, in Polymers in Concrete, SP-40, American Concrete Institute, Detroit (1973), pp.57-92. 

In polymer-impregnated cementitious materials the prehardened cement paste, mortar or concrete is impregnated with a low molecular weight, low-viscosity polymer precursor, which, after having filled the existing pore space, is brought to polymerization. The resultant material is a hardened cementitious body, in which the original pores are filled with the polymer. 

Polymer concrete is a composite material formed by polymerising a monomer and aggregate mixture. There is no other cementitious material present in it. PPCC (or LMC) is a Portland cement concrete produced usually by replacing a specified portion of the mixing water with a latex (polymer emulsion). It can also be produced by adding a monomer to fresh concrete with subsequent in situ curing and polymerisation. PIC is a hardened Portland cement concrete with impregnated monomer which is polymerised in situ. 

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