To explore the effects of content of glass fiber,length of glass fiber,and ceramsite on the mechanical properties of concrete,glass fiber reinforced concrete(GFRC)was formulated,and the response surface method with the central composite face-centered design(CCF)were used to explore the effect of single factor interactions on GFRC performance.The results show that the significant degree of response of single factor to the compressive strength of concrete is ceramsite substitution rate＞glass fiber content＞glass fiber length,and the degree of glass fiber length and glass fiber content under the two-factors interaction are glass fiber length and glass fiber content＞ceramsite substitution rate and glass fiber content＞ceramsite substitution rate and glass fiber length.The GFRC optimal mix ratio combination of ceramsite substitution rate 10.6％,glass fiber length 14.4 mm,and glass fiber content 0.59％,at that time the predicted compressive strength is up to 48.5 MPa,which is only 0.2 MPa from the measured average.The findings will be helpful for the wide use of GRFC,which provided optimized mix ratio design and reference experimental data,which has engineering guiding significance.
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