Abstract

Bond behaviors of magnesium and potassium phosphate cement (MKPC) matrix with glass fiber bundle (GFB) were investigated through measuring pullout forces of GFB. Test results showed that, the self-made inorganic adhesive could permeate into glass fibrils well and rectified damage weakness possessed by fiber, pullout force of GFB which was dipped self-made inorganic adhesive added in some magnesium oxide (MgO) powders was greatly improved due to chemical reaction between MgO powders and phosphate in MKPC matrix. Fluidity of MKPC paste mixed proper water glass would be improved, and compressive strength of MKPC paste added in some fly ash would be reinforced, amorphous hydrates would increase in both of the concretion, the microstructure would be more compact and the pullout force of GFB was greatly improved as well. Minimum embedded length of GFB existed achieved its maximum pullout force which could guarantee the tension strength of GFB

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