Research Article

Study on Mechanical Performance of ECC Reinforced by Polypropylene Fiber Mixed with Manufactured Sand and Carbon Black (CBMSPP-ECC) Based on Response Surface Method

Table 4

Experimental factors and response results of BBD matrix design.

Mix numberVariable code and levelResponse value
StdABCR1: flexural strength (MPa)R2: compressive strength (MPa)R3: flexural-compressive ratio (%)R4: splitting tensile strength (MPa)

1−1−108.2458.8914.008.89
21−1010.6246.6222.786.43
3−1107.1637.4919.115.58
411011.0532.9533.535.32
5−10−18.9029.6130.054.73
610−110.1338.1026.575.57
7−10110.7370.7815.159.01
810115.4171.7521.488.99
90−1−17.0748.0414.726.90
1001−18.4523.9335.294.41
110−1111.7067.8617.2510.18
1201112.0452.8022.805.92
1300012.8170.2118.257.05
1400013.2369.7918.966.85
1500013.0863.9820.449.30
1600012.7369.3418.367.64
1700010.8768.6915.827.23